Document:

exv4w23

EXHIBIT 4.23

Agreement on Authorization to Exercise Shareholder’s Voting Power

This agreement is concluded by and between the following parties on 18 (Day)
08 (Month) 2007 (Year) in Haidian District, Beijing:

Party A: YC Yan (hereinafter referred to as “the Authorizer”)

Number of Identification Card:

Party B: SINA.com Technology (China) Co.Limited (hereinafter referred to as “Sina Company”)

Address: Room 1506, Ideal Int’l Mansion, No. 58, West Of North Forth Ring Rd., Haidian District,
Beijing, China.

WHEREAS:

	 	1.	 	The Authorizer holds 20% of stock rights of Beijing Sina Infinity Advertising Co., Ltd.
(hereinafter referred to as “IAD Company”) on the date of signing of this Agreement; and to hold
above-mentioned stock rights, the Authorizer owns a debt of RMB 200,000 Yuan to Sina Company;
	 
	 	2.	 	The Authorizer is willing to authorize Sina Company full powers to exercise his entire
shareholder’s voting power in his name in shareholders’ meetings of IAD Company; SINA COMPANY is
willing to accept the above-mentioned authorization.

NOW, THEREFORE, after friendly consultation, the above parties conclude the following agreement
regarding to the matters of authorization of shareholder’s voting power:

1. Authorization of Voting Power

1.1The Authorizer hereby agrees to irrevocably authorize Sina Company, within the term of
authorization provided by this Agreement and in the Authorizer’s name, to exercise all
shareholder’s voting power enjoyed by the Authorizer according to law and IAD Company’s articles of
association in IAD Company’s shareholders’ meetings. Such shareholder’s voting power includes, but
not limits to, the following rights:

	 	1)	 	to decide IAD Company’s management policy and investment plan;
	 
	 	2)	 	to elect and change IAD Company’s directors, and decide the matters regarding to director’s
remuneration;
	 
	 	3)	 	to elect and change IAD Company’s supervisors, and decide the matters regarding to
supervisor’s remuneration;
	 
	 	4)	 	to review and approve the reports of IAD Company’s board of directors;
	 
	 	5)	 	to review and approve supervisor’s reports;
	 
	 	6)	 	to review and approve IAD Company’s annual financial budget bill and the proposal of final
accounts;
	 
	 	7)	 	to review and approve IAD Company’s profit distribution plan and the plan to make good
deficits;
	 
	 	8)	 	to make decision on IAD Company’s increasing or decreasing registered capital;
	 
	 	9)	 	to make decision on IAD Company’s issue of corporate bonds;
	 
	 	10)	 	to make decision on IAD Company’s shareholder transferring his subscribed capital to the
persons other than IAD Company’s shareholders;
	 
	 	11)	 	to make decision on IAD Company’s merger, separation, change of company’s form, dissolution
and liquidation, etc.;
	 
	 	12)	 	to make decision on changing IAD Company’s business scope;
	 
	 	13)	 	to revise IAD Company’s articles of association;
	 
	 	14)	 	to decide to change the contents or nature of IAD Company’s business;
	 
	 	15)	 	to decide to make a loan to any third party or incur any debts in IAD Company’s name;
	 
	 	16)	 	to decide to sell IAD Company’s any assets or rights to any third party, including but not
limited to intellectual property;
	 
	 	17)	 	to decide to set up any security rights against IAD Company’s any assets (including both
tangible and intangible

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	 	assets)	 	whatsoever such security is for;
	 
	 	18)	 	to decide to assign the contracts signed by IAD Company to any third party; and
	 
	 	19)	 	to decide any other rights that may materially affect IAD Company’s rights, obligations,
assets or management matters.

1.2 Sina Company agrees to accept the authorization contained in previous article made by the
Authorizer and shall exercise such shareholder’s voting power in the Authorizer’s name according to
the provisions of this Agreement.

2. Exercising of Voting Power

2.1 Within the term of authorization provided by this Agreement, the Authorizer’s entire
shareholder’s voting power in IAD Company shall be authorized to Sina Company to exercise. Without
Sina Company’s prior written consent, the Authorizer shall not, in the term of authorization, make
any decision that may materially affect IAD Company’s rights, obligations, assets or management,
shall not approve any plan that may materially affect IAD Company’s rights, obligations, assets or
management, shall not conduct any other activities that may materially affect IAD Company’s rights,
obligations, assets or management, and shall not exercise any his shareholder’s voting power in IAD
Company by any other means.

2.2 If Sina Company requests the Authorizer to provide special written authorization document to
Sina Company or any person appointed by Sina Company regarding to each specific matter, whether
such request made prior to or after such matter, the Authorizer must provide before the matter
occurs or provide in supplement after the matter occurs such written authorization document
according to Sina Company’s specific request.

2.3 In relation to any matters agreed upon by Sina Company by exercising shareholder’s voting
power, if necessary, Sina Company shall have the right to request the Authorizer to confirm by
signing on the relevant decisions of shareholder’s meeting or other similar written documents.

2.4 The Authorizer affirms that Sina Company shall have the right to submandate the other party to
exercise Sina Company’s any rights under this Agreement, and such submandate need not be approved
by the Authorizer, but shall be notified to the Authorizer in advance.

2.5 Sina Company shall report to the Authorizer the situation of authorized matters at the time he
deems proper. When this Agreement is terminated, Sina Company shall report the Authorizer the
results of authorized matters.

3. Term of Authorization

3.1 The term of authorization of shareholder’s voting power under this Agreement shall be from the
effective date of this Agreement to the date of IAD Company’s dissolution.

3.2 After consultation, the Parties agree that the term of authorization may be adjusted at any
time in written form with specific regulations.

4. Remuneration of Authorization

Sina Company agrees that the Authorizer shall be exempt from paying any remuneration to Sina
Company for authorized matters according to this Agreement.

5. Declaration and Guarantee

5.1 The Parties of this Agreement hereby represents, undertakes and guarantees to each other as
follows:

	 	1)	 	possess appropriate competence and power to conclude this Agreement;
	 
	 	2)	 	have capability to fulfill obligations under this Agreement;
	 
	 	3)	 	No performance of obligations under this Agreement is in breach of any restriction in legal
documents that binds.

5.2 This Agreement, once being signed, shall constitute to both parties legal and effective
obligations that can be enforced according to the provisions of this Agreement.

6. Liability for Breaching

6.1 Any Party’s direct or indirect violation of any provision of this Agreement, or non-performance
or unduly and non-sufficient performance of his obligations under this Agreement shall constitute
breach of this Agreement. The party that obeys this Agreement (“the observant party”) shall have
the right to, by written notification, require the party in breach to

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rectify his nonperformance and take sufficient, effective and duly measures to eliminate the
results of breach, and compensate the observant party’s damage caused by such breach.

6.2 After such breach occurs, if the observant party reasonably and objectively finds that such
breach has resulted in impossibility or unfairness for it to perform obligations under this
Agreement, the observant party shall be entitled to suspend performing its relevant obligations
under this Agreement with notice in writing giving to the party in breach, till the party in breach
ceases nonperformance and takes sufficient, effective and duly measures to eliminate the results of
breach, and compensates the observant party’s damage caused by such breach.

6.3 The party in breach compensating the observant party’s damage shall include the observant
party’s direct economic loss, any anticipatable indirect loss and additional fee caused by breach.
Such addition fee shall include, but not limit to, attorney fee, litigation or arbitration fee,
finance expenditure and travel expense, and etc.

7. Force Majeure

7.1 “Force Majeure” shall mean any event out of the parties’ reasonable control, non-foreseeable,
or unavoidable even has been foreseen and such event hinder, affect or delay any party’s
performance of all or part of his obligations according to this Agreement. Such events include, but
not limit to, government’s acts, natural disasters, war or any other similar events.

7.2 The party suffers Force Majeure may suspend performing his relevant obligations under this
Agreement that are failed to be performed by the reason of Force Majeure till the effect of Force
Majeure is eliminated, and shall not bear any liability of breach of this Agreement. But such party
shall exert himself as much as possible to overcome such event and reduce its negative effects.

7.3 The suffering party from Force Majeure shall provide the other party with legal certifications
of such event issued by the notary office (or other proper agency) of the area where the event
occurs, which if fails, the other party may request the suffering party to bear any liability for
breach according to the provisions of this Agreement.

8. Effectiveness, Modification and Termination

8.1 This Agreement shall enter into force from the date of signing and sealing by Parties and
terminates when the term of authorization provided by this Agreement expires.

8.2 Prior to the expiration of this Agreement, if the Authorizer transfers all its stocks of IAD
Company to Sina Company or other party agreed upon by Sina Company in written form in advance, the
Authorizer shall not be bound by any provisions of this Agreement from the date of completing stock
transfer. But the Authorizer shall notify the transferee in writing the existence of this Agreement
during the transfer, and the transferee’s full consent to be bound by this Agreement shall be the
precondition of transferring stock rights.

8.3 The Authorizer hereby irrevocably and permanently waives its right to rescind this Agreement at
any time.

8.4 The Parties may modify and supplement this Agreement in written form with consents from both.
Such modification and supplement signed by and between the Parties shall be part of this Agreement
with equal legal effect to this Agreement.

8.5 The Authorizer hereby agrees that Sina Company shall have the right to terminate this Agreement
from time to time without any reason by written notification rendered 10 days ahead and shall not
bear any liability for breach.

8.6 Earlier termination of this Agreement shall not impose any effect upon the Parties’ rights and
obligations occurred already according to this Agreement prior to the date of such termination.

9. Settlement of Dispute & Governing Law

9.1 The Parties shall settle with good faith all disputes regarding to interpretation and
enforcement of any provisions of this Agreement by consultation.

9.2 The disputes that are failed to be resolved by consultation shall be referred to China
International Economic and Trade Arbitration Committee for arbitration according to its existing
arbitration rules. The place of arbitration shall be in Beijing; and the language used in
arbitration shall be Chinese. The decision of arbitration shall be final and binding upon both
parties.

9.3 Laws and regulations of PRC shall be applied for conclusion, execution, interpretation and
settlement of disputes concerning this agreement.

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10. Miscellaneous

10.1 This agreement is made into one original with two copies, one for each party, both with
equally legal effectiveness.

10.2 Titles and headlines contained in this Agreement are set for convenience to its readers only
and shall not impose any effect upon interpretation of any provisions of this Agreement.

10.3 If any provision of this Agreement is entirely or partially invalid or unenforceable for the
reason of violating laws or government regulations or other reasons, the affected part of such
provision shall be deemed as deleted. But deleting the affected part of such provision shall not
impose any effect upon the legal effect of other part of such provision and other provisions of
this Agreement. The Parties shall negotiate and conclude new provision to replace such invalid or
unenforceable provision.

10.4 Unless otherwise stipulated, non-exercise or deferred exercise by either party of any rights,
authority or privilege under this Agreement shall not be deemed as waiver of such rights, authority
or privilege. And independent or partial exercise of any rights, authority or privilege shall not
exclude the exercise of other rights, authority or privilege as well.

10.5 This Agreement constitutes the entire agreement concluded by the Parties regarding to the
subject matters of cooperation program, and shall replace any previous or present, verbal or
written agreements concluded by the Parties regarding to the subject matters of cooperation
program. If the Parties’ previous promises or previous agreements signed by the Parties regarding
to any matters under this Agreement do not comply with the provisions of this Agreement, this
Agreement shall prevail.

10.6 The Parties shall additionally negotiate and confirm any issues not covered by this agreement.

	 	 	 	 	 	 	 	 	 
	Employee	 	 	 	SINA.com Technology (China) Co.Limited	 	 
	 
	 	 	 	 	 	 	 	 
	Signature:

	 	/s/
	 	Authorized Representative:
	 	/s/
	 	 
	 

	 	 
	 	 	 	 	 	 

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Agreement on Authorization to Exercise Shareholder’s Voting Power

This agreement is concluded by and between the following parties on 18 (Day)
08 (Month) 2007 (Year) in Haidian District, Beijing:

Party A: H Lin (hereinafter referred to as “the Authorizer”)

Number of Identification Card:

Party B: SINA.com Technology (China) Co.Limited (hereinafter referred to as “Sina Company”)

Address: Room 1506, Ideal Int’l Mansion, No. 58, West Of North Forth Ring Rd., Haidian District,
Beijing, China.

WHEREAS:

	 	1.	 	The Authorizer holds 20% of stock rights of Beijing Sina Infinity Advertising Co., Ltd.
(hereinafter referred to as “IAD Company”) on the date of signing of this Agreement; and to hold
above-mentioned stock rights, the Authorizer owns a debt of RMB 200,000 Yuan to Sina Company;

	 
	 	2.	 	The Authorizer is willing to authorize Sina Company full powers to exercise his entire
shareholder’s voting power in his name in shareholders’ meetings of IAD Company; SINA COMPANY is
willing to accept the above-mentioned authorization.

NOW, THEREFORE, after friendly consultation, the above parties conclude the following agreement
regarding to the matters of authorization of shareholder’s voting power:

1. Authorization of Voting Power

1.1The Authorizer hereby agrees to irrevocably authorize Sina Company, within the term of
authorization provided by this Agreement and in the Authorizer’s name, to exercise all
shareholder’s voting power enjoyed by the Authorizer according to law and IAD Company’s articles of
association in IAD Company’s shareholders’ meetings. Such shareholder’s voting power includes, but
not limits to, the following rights:

	 	1)	 	to decide IAD Company’s management policy and investment plan;
	 
	 	2)	 	to elect and change IAD Company’s directors, and decide the matters regarding to director’s
remuneration;
	 
	 	3)	 	to elect and change IAD Company’s supervisors, and decide the matters regarding to
supervisor’s remuneration;
	 
	 	4)	 	to review and approve the reports of IAD Company’s board of directors;
	 
	 	5)	 	to review and approve supervisor’s reports;
	 
	 	6)	 	to review and approve IAD Company’s annual financial budget bill and the proposal of final
accounts;
	 
	 	7)	 	to review and approve IAD Company’s profit distribution plan and the plan to make good
deficits;
	 
	 	8)	 	to make decision on IAD Company’s increasing or decreasing registered capital;
	 
	 	9)	 	to make decision on IAD Company’s issue of corporate bonds;
	 
	 	10)	 	to make decision on IAD Company’s shareholder transferring his subscribed capital to the
persons other than IAD Company’s shareholders;
	 
	 	11)	 	to make decision on IAD Company’s merger, separation, change of company’s form, dissolution
and liquidation, etc.;
	 
	 	12)	 	to make decision on changing IAD Company’s business scope;
	 
	 	13)	 	to revise IAD Company’s articles of association;
	 
	 	14)	 	to decide to change the contents or nature of IAD Company’s business;
	 
	 	15)	 	to decide to make a loan to any third party or incur any debts in IAD Company’s name;
	 
	 	16)	 	to decide to sell IAD Company’s any assets or rights to any third party, including but not
limited to intellectual property;

1

 

	 	17)	 	to decide to set up any security rights against IAD Company’s any assets (including both
tangible and intangible
assets) whatsoever such security is for;
	 
	 	18)	 	to decide to assign the contracts signed by IAD Company to any third party; and
	 
	 	19)	 	to decide any other rights that may materially affect IAD Company’s rights, obligations,
assets or management matters.

1.2 Sina Company agrees to accept the authorization contained in previous article made by the
Authorizer and shall exercise such shareholder’s voting power in the Authorizer’s name according to
the provisions of this Agreement.

2. Exercising of Voting Power

2.1 Within the term of authorization provided by this Agreement, the Authorizer’s entire
shareholder’s voting power in IAD Company shall be authorized to Sina Company to exercise. Without
Sina Company’s prior written consent, the Authorizer shall not, in the term of authorization, make
any decision that may materially affect IAD Company’s rights, obligations, assets or management,
shall not approve any plan that may materially affect IAD Company’s rights, obligations, assets or
management, shall not conduct any other activities that may materially affect IAD Company’s rights,
obligations, assets or management, and shall not exercise any his shareholder’s voting power in IAD
Company by any other means.

2.2 If Sina Company requests the Authorizer to provide special written authorization document to
Sina Company or any person appointed by Sina Company regarding to each specific matter, whether
such request made prior to or after such matter, the Authorizer must provide before the matter
occurs or provide in supplement after the matter occurs such written authorization document
according to Sina Company’s specific request.

2.3 In relation to any matters agreed upon by Sina Company by exercising shareholder’s voting
power, if necessary, Sina Company shall have the right to request the Authorizer to confirm by
signing on the relevant decisions of shareholder’s meeting or other similar written documents.

2.4 The Authorizer affirms that Sina Company shall have the right to submandate the other party to
exercise Sina Company’s any rights under this Agreement, and such submandate need not be approved
by the Authorizer, but shall be notified to the Authorizer in advance.

2.5 Sina Company shall report to the Authorizer the situation of authorized matters at the time he
deems proper. When this Agreement is terminated, Sina Company shall report the Authorizer the
results of authorized matters.

3. Term of Authorization

3.1 The term of authorization of shareholder’s voting power under this Agreement shall be from the
effective date of this Agreement to the date of IAD Company’s dissolution.

3.2 After consultation, the Parties agree that the term of authorization may be adjusted at any
time in written form with specific regulations.

4. Remuneration of Authorization

Sina Company agrees that the Authorizer shall be exempt from paying any remuneration to Sina
Company for authorized matters according to this Agreement.

5. Declaration and Guarantee

5.1 The Parties of this Agreement hereby represents, undertakes and guarantees to each other as
follows:

	 	1)	 	possess appropriate competence and power to conclude this Agreement;
	 
	 	2)	 	have capability to fulfill obligations under this Agreement;
	 
	 	3)	 	No performance of obligations under this Agreement is in breach of any restriction in legal
documents that binds.

5.2 This Agreement, once being signed, shall constitute to both parties legal and effective
obligations that can be enforced according to the provisions of this Agreement.

6. Liability for Breaching

2

 

6.1 Any Party’s direct or indirect violation of any provision of this Agreement, or non-performance
or unduly and non-sufficient performance of his obligations under this Agreement shall constitute
breach of this Agreement. The party
that obeys this Agreement (“the observant party”) shall have the right to, by written notification,
require the party in breach to rectify his nonperformance and take sufficient, effective and duly
measures to eliminate the results of breach, and compensate the observant party’s damage caused by
such breach.

6.2 After such breach occurs, if the observant party reasonably and objectively finds that such
breach has resulted in impossibility or unfairness for it to perform obligations under this
Agreement, the observant party shall be entitled to suspend performing its relevant obligations
under this Agreement with notice in writing giving to the party in breach, till the party in breach
ceases nonperformance and takes sufficient, effective and duly measures to eliminate the results of
breach, and compensates the observant party’s damage caused by such breach.

6.3 The party in breach compensating the observant party’s damage shall include the observant
party’s direct economic loss, any anticipatable indirect loss and additional fee caused by breach.
Such addition fee shall include, but not limit to, attorney fee, litigation or arbitration fee,
finance expenditure and travel expense, and etc.

7. Force Majeure

7.1 “Force Majeure” shall mean any event out of the parties’ reasonable control, non-foreseeable,
or unavoidable even has been foreseen and such event hinder, affect or delay any party’s
performance of all or part of his obligations according to this Agreement. Such events include, but
not limit to, government’s acts, natural disasters, war or any other similar events.

7.2 The party suffers Force Majeure may suspend performing his relevant obligations under this
Agreement that are failed to be performed by the reason of Force Majeure till the effect of Force
Majeure is eliminated, and shall not bear any liability of breach of this Agreement. But such party
shall exert himself as much as possible to overcome such event and reduce its negative effects.

7.3 The suffering party from Force Majeure shall provide the other party with legal certifications
of such event issued by the notary office (or other proper agency) of the area where the event
occurs, which if fails, the other party may request the suffering party to bear any liability for
breach according to the provisions of this Agreement.

8. Effectiveness, Modification and Termination

8.1 This Agreement shall enter into force from the date of signing and sealing by Parties and
terminates when the term of authorization provided by this Agreement expires.

8.2 Prior to the expiration of this Agreement, if the Authorizer transfers all its stocks of IAD
Company to Sina Company or other party agreed upon by Sina Company in written form in advance, the
Authorizer shall not be bound by any provisions of this Agreement from the date of completing stock
transfer. But the Authorizer shall notify the transferee in writing the existence of this Agreement
during the transfer, and the transferee’s full consent to be bound by this Agreement shall be the
precondition of transferring stock rights.

8.3 The Authorizer hereby irrevocably and permanently waives its right to rescind this Agreement at
any time.

8.4 The Parties may modify and supplement this Agreement in written form with consents from both.
Such modification and supplement signed by and between the Parties shall be part of this Agreement
with equal legal effect to this Agreement.

8.5 The Authorizer hereby agrees that Sina Company shall have the right to terminate this Agreement
from time to time without any reason by written notification rendered 10 days ahead and shall not
bear any liability for breach.

8.6 Earlier termination of this Agreement shall not impose any effect upon the Parties’ rights and
obligations occurred already according to this Agreement prior to the date of such termination.

9. Settlement of Dispute & Governing Law

9.1 The Parties shall settle with good faith all disputes regarding to interpretation and
enforcement of any provisions of this Agreement by consultation.

3

 

9.2 The disputes that are failed to be resolved by consultation shall be referred to China
International Economic and Trade Arbitration Committee for arbitration according to its existing
arbitration rules. The place of arbitration shall be in Beijing; and the language used in
arbitration shall be Chinese. The decision of arbitration shall be final and binding upon both
parties.

9.3 Laws and regulations of PRC shall be applied for conclusion, execution, interpretation and
settlement of disputes concerning this agreement.

10. Miscellaneous

10.1 This agreement is made into one original with two copies, one for each party, both with
equally legal effectiveness.

10.2 Titles and headlines contained in this Agreement are set for convenience to its readers only
and shall not impose any effect upon interpretation of any provisions of this Agreement.

10.3 If any provision of this Agreement is entirely or partially invalid or unenforceable for the
reason of violating laws or government regulations or other reasons, the affected part of such
provision shall be deemed as deleted. But deleting the affected part of such provision shall not
impose any effect upon the legal effect of other part of such provision and other provisions of
this Agreement. The Parties shall negotiate and conclude new provision to replace such invalid or
unenforceable provision.

10.4 Unless otherwise stipulated, non-exercise or deferred exercise by either party of any rights,
authority or privilege under this Agreement shall not be deemed as waiver of such rights, authority
or privilege. And independent or partial exercise of any rights, authority or privilege shall not
exclude the exercise of other rights, authority or privilege as well.

10.5 This Agreement constitutes the entire agreement concluded by the Parties regarding to the
subject matters of cooperation program, and shall replace any previous or present, verbal or
written agreements concluded by the Parties regarding to the subject matters of cooperation
program. If the Parties’ previous promises or previous agreements signed by the Parties regarding
to any matters under this Agreement do not comply with the provisions of this Agreement, this
Agreement shall prevail.

10.6 The Parties shall additionally negotiate and confirm any issues not covered by this agreement.

	 	 	 	 	 	 	 	 	 
	Employee	 	 	 	SINA.com Technology (China) Co. Limited	 	 
	 
	 	 	 	 	 	 	 	 
	Signature:

	 	/s/
	 	Authorized Representative:
	 	/s/
	 	 
	 

	 	 
	 	 	 	 	 	 

4

 

Agreement on Authorization to Exercise Shareholder’s Voting Power

This agreement is concluded by and between the following parties on 18 (Day)
08 (Month) 2007 (Year) in Haidian District, Beijing:

Party A: J Wang (hereinafter referred to as “the Authorizer”)

Number of Identification Card:

Party B: SINA.com Technology (China) Co.Limited (hereinafter referred to as “Sina Company”)

Address: Room 1506, Ideal Int’l Mansion, No. 58, West Of North Forth Ring Rd., Haidian District,
Beijing, China.

WHEREAS:

	 	1.	 	The Authorizer holds 20% of stock rights of Beijing Sina Infinity Advertising Co., Ltd.
(hereinafter referred to as “IAD Company”) on the date of signing of this Agreement; and to hold
above-mentioned stock rights, the Authorizer owns a debt of RMB 200,000 Yuan to Sina Company;
	 
	 	2.	 	The Authorizer is willing to authorize Sina Company full powers to exercise his entire
shareholder’s voting power in his name in shareholders’ meetings of IAD Company; SINA COMPANY is
willing to accept the above-mentioned authorization.

NOW, THEREFORE, after friendly consultation, the above parties conclude the following agreement
regarding to the matters of authorization of shareholder’s voting power:

1. Authorization of Voting Power

1.1The Authorizer hereby agrees to irrevocably authorize Sina Company, within the term of
authorization provided by this Agreement and in the Authorizer’s name, to exercise all
shareholder’s voting power enjoyed by the Authorizer according to law and IAD Company’s articles of
association in IAD Company’s shareholders’ meetings. Such shareholder’s voting power includes, but
not limits to, the following rights:

	 	1)	 	to decide IAD Company’s management policy and investment plan;
	 
	 	2)	 	to elect and change IAD Company’s directors, and decide the matters regarding to director’s
remuneration;
	 
	 	3)	 	to elect and change IAD Company’s supervisors, and decide the matters regarding to
supervisor’s remuneration;
	 
	 	4)	 	to review and approve the reports of IAD Company’s board of directors;
	 
	 	5)	 	to review and approve supervisor’s reports;
	 
	 	6)	 	to review and approve IAD Company’s annual financial budget bill and the proposal of final
accounts;
	 
	 	7)	 	to review and approve IAD Company’s profit distribution plan and the plan to make good
deficits;
	 
	 	8)	 	to make decision on IAD Company’s increasing or decreasing registered capital;
	 
	 	9)	 	to make decision on IAD Company’s issue of corporate bonds;
	 
	 	10)	 	to make decision on IAD Company’s shareholder transferring his subscribed capital to the
persons other than IAD Company’s shareholders;
	 
	 	11)	 	to make decision on IAD Company’s merger, separation, change of company’s form, dissolution
and liquidation, etc.;
	 
	 	12)	 	to make decision on changing IAD Company’s business scope;
	 
	 	13)	 	to revise IAD Company’s articles of association;
	 
	 	14)	 	to decide to change the contents or nature of IAD Company’s business;
	 
	 	15)	 	to decide to make a loan to any third party or incur any debts in IAD Company’s name;
	 
	 	16)	 	to decide to sell IAD Company’s any assets or rights to any third party, including but not
limited to intellectual property;
	 
	 	17)	 	to decide to set up any security rights against IAD Company’s any assets (including both
tangible and intangible 

1

 

	 	 	 	assets) whatsoever such security is for;

	 	18)	 	to decide to assign the contracts signed by IAD Company to any third party; and
	 
	 	19)	 	to decide any other rights that may materially affect IAD Company’s rights, obligations,
assets or management matters.

1.2 Sina Company agrees to accept the authorization contained in previous article made by the
Authorizer and shall exercise such shareholder’s voting power in the Authorizer’s name according to
the provisions of this Agreement.

2. Exercising of Voting Power

2.1 Within the term of authorization provided by this Agreement, the Authorizer’s entire
shareholder’s voting power in IAD Company shall be authorized to Sina Company to exercise. Without
Sina Company’s prior written consent, the Authorizer
shall not, in the term of authorization, make any decision that may materially affect IAD Company’s
rights, obligations, assets or management, shall not approve any plan that may materially affect
IAD Company’s rights, obligations, assets or management, shall not conduct any other activities
that may materially affect IAD Company’s rights, obligations, assets or management, and shall not
exercise any his shareholder’s voting power in IAD Company by any other means.

2.2 If Sina Company requests the Authorizer to provide special written authorization document to
Sina Company or any person appointed by Sina Company regarding to each specific matter, whether
such request made prior to or after such matter, the Authorizer must provide before the matter
occurs or provide in supplement after the matter occurs such written authorization document
according to Sina Company’s specific request.

2.3 In relation to any matters agreed upon by Sina Company by exercising shareholder’s voting
power, if necessary, Sina Company shall have the right to request the Authorizer to confirm by
signing on the relevant decisions of shareholder’s meeting or other similar written documents.

2.4 The Authorizer affirms that Sina Company shall have the right to submandate the other party to
exercise Sina Company’s any rights under this Agreement, and such submandate need not be approved
by the Authorizer, but shall be notified to the Authorizer in advance.

2.5 Sina Company shall report to the Authorizer the situation of authorized matters at the time he
deems proper. When this Agreement is terminated, Sina Company shall report the Authorizer the
results of authorized matters.

3. Term of Authorization

3.1 The term of authorization of shareholder’s voting power under this Agreement shall be from the
effective date of this Agreement to the date of IAD Company’s dissolution.

3.2 After consultation, the Parties agree that the term of authorization may be adjusted at any
time in written form with specific regulations.

4. Remuneration of Authorization

Sina Company agrees that the Authorizer shall be exempt from paying any remuneration to Sina
Company for authorized matters according to this Agreement.

5. Declaration and Guarantee

5.1 The Parties of this Agreement hereby represents, undertakes and guarantees to each other as
follows:

	 	1)	 	possess appropriate competence and power to conclude this Agreement;
	 
	 	2)	 	have capability to fulfill obligations under this Agreement;
	 
	 	3)	 	No performance of obligations under this Agreement is in breach of any restriction in legal
documents that binds.

5.2 This Agreement, once being signed, shall constitute to both parties legal and effective
obligations that can be enforced according to the provisions of this Agreement.

6. Liability for Breaching

6.1 Any Party’s direct or indirect violation of any provision of this Agreement, or non-performance
or unduly and non-sufficient performance of his obligations under this Agreement shall constitute
breach of this Agreement. The party that obeys this Agreement (“the observant party”) shall have
the right to, by written notification, require the party in breach to

2

 

 rectify his nonperformance
and take sufficient, effective and duly measures to eliminate the results of breach, and compensate
the observant party’s damage caused by such breach.

6.2 After such breach occurs, if the observant party reasonably and objectively finds that such
breach has resulted in impossibility or unfairness for it to perform obligations under this
Agreement, the observant party shall be entitled to suspend performing its relevant obligations
under this Agreement with notice in writing giving to the party in breach, till the party in breach
ceases nonperformance and takes sufficient, effective and duly measures to eliminate the results of
breach, and compensates the observant party’s damage caused by such breach.

6.3 The party in breach compensating the observant party’s damage shall include the observant
party’s direct economic loss, any anticipatable indirect loss and additional fee caused by breach.
Such addition fee shall include, but not limit to, attorney fee, litigation or arbitration fee,
finance expenditure and travel expense, and etc.

7. Force Majeure

7.1 “Force Majeure” shall mean any event out of the parties’ reasonable control, non-foreseeable,
or unavoidable even has been foreseen and such event hinder, affect or delay any party’s
performance of all or part of his obligations according to this Agreement. Such events include, but
not limit to, government’s acts, natural disasters, war or any other similar events.

7.2 The party suffers Force Majeure may suspend performing his relevant obligations under this
Agreement that are failed to be performed by the reason of Force Majeure till the effect of Force
Majeure is eliminated, and shall not bear any liability of breach of this Agreement. But such party
shall exert himself as much as possible to overcome such event and reduce its negative effects.

7.3 The suffering party from Force Majeure shall provide the other party with legal certifications
of such event issued by the notary office (or other proper agency) of the area where the event
occurs, which if fails, the other party may request the suffering party to bear any liability for
breach according to the provisions of this Agreement.

8. Effectiveness, Modification and Termination

8.1 This Agreement shall enter into force from the date of signing and sealing by Parties and
terminates when the term of authorization provided by this Agreement expires.

8.2 Prior to the expiration of this Agreement, if the Authorizer transfers all its stocks of IAD
Company to Sina Company or other party agreed upon by Sina Company in written form in advance, the
Authorizer shall not be bound by any provisions of this Agreement from the date of completing stock
transfer. But the Authorizer shall notify the transferee in writing the
existence of this Agreement during the transfer, and the transferee’s full consent to be bound by
this Agreement shall be the precondition of transferring stock rights.

8.3 The Authorizer hereby irrevocably and permanently waives its right to rescind this Agreement at
any time.

8.4 The Parties may modify and supplement this Agreement in written form with consents from both.
Such modification and supplement signed by and between the Parties shall be part of this Agreement
with equal legal effect to this Agreement.

8.5 The Authorizer hereby agrees that Sina Company shall have the right to terminate this Agreement
from time to time without any reason by written notification rendered 10 days ahead and shall not
bear any liability for breach.

8.6 Earlier termination of this Agreement shall not impose any effect upon the Parties’ rights and
obligations occurred already according to this Agreement prior to the date of such termination.

9. Settlement of Dispute & Governing Law

9.1 The Parties shall settle with good faith all disputes regarding to interpretation and
enforcement of any provisions of this Agreement by consultation.

9.2 The disputes that are failed to be resolved by consultation shall be referred to China
International Economic and Trade Arbitration Committee for arbitration according to its existing
arbitration rules. The place of arbitration shall be in Beijing; and the language used in
arbitration shall be Chinese. The decision of arbitration shall be final and binding upon both
parties.

9.3 Laws and regulations of PRC shall be applied for conclusion, execution, interpretation and
settlement of disputes

3

 

 concerning this agreement.

10. Miscellaneous

10.1 This agreement is made into one original with two copies, one for each party, both with
equally legal effectiveness.

10.2 Titles and headlines contained in this Agreement are set for convenience to its readers only
and shall not impose any effect upon interpretation of any provisions of this Agreement.

10.3 If any provision of this Agreement is entirely or partially invalid or unenforceable for the
reason of violating laws or government regulations or other reasons, the affected part of such
provision shall be deemed as deleted. But deleting the affected part of such provision shall not
impose any effect upon the legal effect of other part of such provision and other provisions of
this Agreement. The Parties shall negotiate and conclude new provision to replace such invalid or
unenforceable provision.

10.4 Unless otherwise stipulated, non-exercise or deferred exercise by either party of any rights,
authority or privilege under this Agreement shall not be deemed as waiver of such rights, authority
or privilege. And independent or partial exercise of any rights, authority or privilege shall not
exclude the exercise of other rights, authority or privilege as well.

10.5 This Agreement constitutes the entire agreement concluded by the Parties regarding to the
subject matters of
cooperation program, and shall replace any previous or present, verbal or written agreements
concluded by the Parties regarding to the subject matters of cooperation program. If the Parties’
previous promises or previous agreements signed by the Parties regarding to any matters under this
Agreement do not comply with the provisions of this Agreement, this Agreement shall prevail.

10.6 The Parties shall additionally negotiate and confirm any issues not covered by this agreement.

 
	 	 	 	 	 	 	 	 	 
	Employee	 	 	 	SINA.com Technology (China) Co. Limited	 	 
	 
	 	 	 	 	 	 	 	 
	Signature:

	 	/s/
	 	Authorized Representative:
	 	/s/
	 	 
	 

	 	 
	 	 	 	 	 	 

4

 

Agreement on Authorization to Exercise Shareholder’s Voting Power

This agreement is concluded by and between the following parties on 18 (Day)
08 (Month) 2007 (Year) in Haidian District, Beijing:

Party A: DH Lin (hereinafter referred to as “the Authorizer”)

Number of Identification Card:

Party B: SINA.com Technology (China) Co.Limited (hereinafter referred to as “Sina Company”)

Address: Room 1506, Ideal Int’l Mansion, No. 58, West Of North Forth Ring Rd., Haidian District,
Beijing, China.

WHEREAS:

	 	1.	 	The Authorizer holds 20% of stock rights of Beijing Sina Infinity Advertising Co., Ltd.
(hereinafter referred to as “IAD Company”) on the date of signing of this Agreement; and to hold
above-mentioned stock rights, the Authorizer owns a debt of RMB 200,000 Yuan to Sina Company;
	 
	 	2.	 	The Authorizer is willing to authorize Sina Company full powers to exercise his entire
shareholder’s voting power in his name in shareholders’ meetings of IAD Company; SINA COMPANY is
willing to accept the above-mentioned authorization.

NOW, THEREFORE, after friendly consultation, the above parties conclude the following agreement
regarding to the matters of authorization of shareholder’s voting power:

1. Authorization of Voting Power

1.1The Authorizer hereby agrees to irrevocably authorize Sina Company, within the term of
authorization provided by this Agreement and in the Authorizer’s name, to exercise all
shareholder’s voting power enjoyed by the Authorizer according to law and IAD Company’s articles of
association in IAD Company’s shareholders’ meetings. Such shareholder’s voting power includes, but
not limits to, the following rights:

	 	1)	 	to decide IAD Company’s management policy and investment plan;
	 
	 	2)	 	to elect and change IAD Company’s directors, and decide the matters regarding to director’s
remuneration;
	 
	 	3)	 	to elect and change IAD Company’s supervisors, and decide the matters regarding to
supervisor’s remuneration;
	 
	 	4)	 	to review and approve the reports of IAD Company’s board of directors;
	 
	 	5)	 	to review and approve supervisor’s reports;
	 
	 	6)	 	to review and approve IAD Company’s annual financial budget bill and the proposal of final
accounts;
	 
	 	7)	 	to review and approve IAD Company’s profit distribution plan and the plan to make good
deficits;
	 
	 	8)	 	to make decision on IAD Company’s increasing or decreasing registered capital;
	 
	 	9)	 	to make decision on IAD Company’s issue of corporate bonds;
	 
	 	10)	 	to make decision on IAD Company’s shareholder transferring his subscribed capital to the
persons other than IAD Company’s shareholders;
	 
	 	11)	 	to make decision on IAD Company’s merger, separation, change of company’s form, dissolution
and liquidation, etc.;
	 
	 	12)	 	to make decision on changing IAD Company’s business scope;
	 
	 	13)	 	to revise IAD Company’s articles of association;
	 
	 	14)	 	to decide to change the contents or nature of IAD Company’s business;
	 
	 	15)	 	to decide to make a loan to any third party or incur any debts in IAD Company’s name;
	 
	 	16)	 	to decide to sell IAD Company’s any assets or rights to any third party, including but not
limited to intellectual property;

1

 

	 	17)	 	to decide to set up any security rights against IAD Company’s any assets (including both
tangible and intangible assets) whatsoever such security is for;
	 
	 	18)	 	to decide to assign the contracts signed by IAD Company to any third party; and
	 
	 	19)	 	to decide any other rights that may materially affect IAD Company’s rights, obligations,
assets or management matters.

1.2 Sina Company agrees to accept the authorization contained in previous article made by the
Authorizer and shall exercise such shareholder’s voting power in the Authorizer’s name according to
the provisions of this Agreement.

2. Exercising of Voting Power

2.1 Within the term of authorization provided by this Agreement, the Authorizer’s entire
shareholder’s voting power in IAD Company shall be authorized to Sina Company to exercise. Without
Sina Company’s prior written consent, the Authorizer shall not, in the term of authorization, make
any decision that may materially affect IAD Company’s rights, obligations, assets or management,
shall not approve any plan that may materially affect IAD Company’s rights, obligations, assets or
management, shall not conduct any other activities that may materially affect IAD Company’s rights,
obligations, assets or management, and shall not exercise any his shareholder’s voting power in IAD
Company by any other means.

2.2 If Sina Company requests the Authorizer to provide special written authorization document to
Sina Company or any person appointed by Sina Company regarding to each specific matter, whether
such request made prior to or after such matter, the Authorizer must provide before the matter
occurs or provide in supplement after the matter occurs such written authorization document
according to Sina Company’s specific request.

2.3 In relation to any matters agreed upon by Sina Company by exercising shareholder’s voting
power, if necessary, Sina Company shall have the right to request the Authorizer to confirm by
signing on the relevant decisions of shareholder’s meeting or other similar written documents.

2.4 The Authorizer affirms that Sina Company shall have the right to submandate the other party to
exercise Sina Company’s any rights under this Agreement, and such submandate need not be approved
by the Authorizer, but shall be notified to the Authorizer in advance.

2.5 Sina Company shall report to the Authorizer the situation of authorized matters at the time he
deems proper. When this Agreement is terminated, Sina Company shall report the Authorizer the
results of authorized matters.

3. Term of Authorization

3.1 The term of authorization of shareholder’s voting power under this Agreement shall be from the
effective date of this Agreement to the date of IAD Company’s dissolution.

3.2 After consultation, the Parties agree that the term of authorization may be adjusted at any
time in written form with specific regulations.

4. Remuneration of Authorization

Sina Company agrees that the Authorizer shall be exempt from paying any remuneration to Sina
Company for authorized matters according to this Agreement.

5. Declaration and Guarantee

5.1 The Parties of this Agreement hereby represents, undertakes and guarantees to each other as
follows:

	 	1)	 	possess appropriate competence and power to conclude this Agreement;
	 
	 	2)	 	have capability to fulfill obligations under this Agreement;
	 
	 	3)	 	No performance of obligations under this Agreement is in breach of any restriction in legal
documents that binds.

5.2 This Agreement, once being signed, shall constitute to both parties legal and effective
obligations that can be enforced according to the provisions of this Agreement.

6. Liability for Breaching

2

 

6.1 Any Party’s direct or indirect violation of any provision of this Agreement, or non-performance
or unduly and non-sufficient performance of his obligations under this Agreement shall constitute
breach of this Agreement. The party that obeys this Agreement (“the observant party”) shall have
the right to, by written notification, require the party in breach to rectify his nonperformance
and take sufficient, effective and duly measures to eliminate the results of breach, and compensate
the observant party’s damage caused by such breach.

6.2 After such breach occurs, if the observant party reasonably and objectively finds that such
breach has resulted in impossibility or unfairness for it to perform obligations under this
Agreement, the observant party shall be entitled to suspend performing its relevant obligations
under this Agreement with notice in writing giving to the party in breach, till the party in breach
ceases nonperformance and takes sufficient, effective and duly measures to eliminate the results of
breach, and compensates the observant party’s damage caused by such breach.

6.3 The party in breach compensating the observant party’s damage shall include the observant
party’s direct economic loss, any anticipatable indirect loss and additional fee caused by breach.
Such addition fee shall include, but not limit to, attorney fee, litigation or arbitration fee,
finance expenditure and travel expense, and etc.

7. Force Majeure

7.1 “Force Majeure” shall mean any event out of the parties’ reasonable control, non-foreseeable,
or unavoidable even has been foreseen and such event hinder, affect or delay any party’s
performance of all or part of his obligations according to this Agreement. Such events include, but
not limit to, government’s acts, natural disasters, war or any other similar events.

7.2 The party suffers Force Majeure may suspend performing his relevant obligations under this
Agreement that are failed to be performed by the reason of Force Majeure till the effect of Force
Majeure is eliminated, and shall not bear any liability of breach of this Agreement. But such party
shall exert himself as much as possible to overcome such event and reduce its negative effects.

7.3 The suffering party from Force Majeure shall provide the other party with legal certifications
of such event issued by the notary office (or other proper agency) of the area where the event
occurs, which if fails, the other party may request the suffering party to bear any liability for
breach according to the provisions of this Agreement.

8. Effectiveness, Modification and Termination

8.1 This Agreement shall enter into force from the date of signing and sealing by Parties and
terminates when the term of authorization provided by this Agreement expires.

8.2 Prior to the expiration of this Agreement, if the Authorizer transfers all its stocks of IAD
Company to Sina Company or other party agreed upon by Sina Company in written form in advance, the
Authorizer shall not be bound by any provisions of this Agreement from the date of completing stock
transfer. But the Authorizer shall notify the transferee in writing the existence of this Agreement
during the transfer, and the transferee’s full consent to be bound by this Agreement shall be the
precondition of transferring stock rights.

8.3 The Authorizer hereby irrevocably and permanently waives its right to rescind this Agreement at
any time.

8.4 The Parties may modify and supplement this Agreement in written form with consents from both.
Such modification and supplement signed by and between the Parties shall be part of this Agreement
with equal legal effect to this Agreement.

8.5 The Authorizer hereby agrees that Sina Company shall have the right to terminate this Agreement
from time to time without any reason by written notification rendered 10 days ahead and shall not
bear any liability for breach.

8.6 Earlier termination of this Agreement shall not impose any effect upon the Parties’ rights and
obligations occurred already according to this Agreement prior to the date of such termination.

9. Settlement of Dispute & Governing Law

9.1 The Parties shall settle with good faith all disputes regarding to interpretation and
enforcement of any provisions of this Agreement by consultation.

3

 

9.2 The disputes that are failed to be resolved by consultation shall be referred to China
International Economic and Trade Arbitration Committee for arbitration according to its existing
arbitration rules. The place of arbitration shall be in Beijing; and the language used in
arbitration shall be Chinese. The decision of arbitration shall be final and binding upon both
parties.

9.3 Laws and regulations of PRC shall be applied for conclusion, execution, interpretation and
settlement of disputes concerning this agreement.

10. Miscellaneous

10.1 This agreement is made into one original with two copies, one for each party, both with
equally legal effectiveness.

10.2 Titles and headlines contained in this Agreement are set for convenience to its readers only
and shall not impose any effect upon interpretation of any provisions of this Agreement.

10.3 If any provision of this Agreement is entirely or partially invalid or unenforceable for the
reason of violating laws or government regulations or other reasons, the affected part of such
provision shall be deemed as deleted. But deleting the affected part of such provision shall not
impose any effect upon the legal effect of other part of such provision and other provisions of
this Agreement. The Parties shall negotiate and conclude new provision to replace such invalid or
unenforceable provision.

10.4 Unless otherwise stipulated, non-exercise or deferred exercise by either party of any rights,
authority or privilege under this Agreement shall not be deemed as waiver of such rights, authority
or privilege. And independent or partial exercise of any rights, authority or privilege shall not
exclude the exercise of other rights, authority or privilege as well.

10.5 This Agreement constitutes the entire agreement concluded by the Parties regarding to the
subject matters of cooperation program, and shall replace any previous or present, verbal or
written agreements concluded by the Parties regarding to the subject matters of cooperation
program. If the Parties’ previous promises or previous agreements signed by the Parties regarding
to any matters under this Agreement do not comply with the provisions of this Agreement, this
Agreement shall prevail.

10.6 The Parties shall additionally negotiate and confirm any issues not covered by this agreement.

 
	 	 	 	 	 	 	 	 	 
	Employee	 	 	 	SINA.com Technology (China) Co. Limited	 	 
	 
	 	 	 	 	 	 	 	 
	Signature:

	 	/s/
	 	Authorized Representative:
	 	/s/
	 	 
	 

	 	 
	 	 	 	 	 	 

4

 

Agreement on Authorization to Exercise Shareholder’s Voting Power

This agreement is concluded by and between the following parties on 18 (Day)
08 (Month) 2007 (Year) in Haidian District, Beijing:

Party A: T Chen (hereinafter referred to as “the Authorizer”)

Number of Identification Card:

Party B: SINA.com Technology (China) Co.Limited (hereinafter referred to as “Sina Company”)

Address: Room 1506, Ideal Int’l Mansion, No. 58, West Of North Forth Ring Rd., Haidian District,
Beijing, China.

WHEREAS:

	 	1.	 	The Authorizer holds 20% of stock rights of Beijing Sina Infinity Advertising Co., Ltd.
(hereinafter referred to as “IAD Company”) on the date of signing of this Agreement; and to hold
above-mentioned stock rights, the Authorizer owns a debt of RMB 200,000 Yuan to Sina Company;
	 
	 	2.	 	The Authorizer is willing to authorize Sina Company full powers to exercise his entire
shareholder’s voting power in his name in shareholders’ meetings of IAD Company; SINA COMPANY is
willing to accept the above-mentioned authorization.

NOW, THEREFORE, after friendly consultation, the above parties conclude the following agreement
regarding to the matters of authorization of shareholder’s voting power:

1. Authorization of Voting Power

1.1The Authorizer hereby agrees to irrevocably authorize Sina Company, within the term of
authorization provided by this Agreement and in the Authorizer’s name, to exercise all
shareholder’s voting power enjoyed by the Authorizer according to law and IAD Company’s articles of
association in IAD Company’s shareholders’ meetings. Such shareholder’s voting power includes, but
not limits to, the following rights:

	 	1)	 	to decide IAD Company’s management policy and investment plan;
	 
	 	2)	 	to elect and change IAD Company’s directors, and decide the matters regarding to director’s
remuneration;
	 
	 	3)	 	to elect and change IAD Company’s supervisors, and decide the matters regarding to
supervisor’s remuneration;
	 
	 	4)	 	to review and approve the reports of IAD Company’s board of directors;
	 
	 	5)	 	to review and approve supervisor’s reports;
	 
	 	6)	 	to review and approve IAD Company’s annual financial budget bill and the proposal of final
accounts;
	 
	 	7)	 	to review and approve IAD Company’s profit distribution plan and the plan to make good
deficits;
	 
	 	8)	 	to make decision on IAD Company’s increasing or decreasing registered capital;
	 
	 	9)	 	to make decision on IAD Company’s issue of corporate bonds;
	 
	 	10)	 	to make decision on IAD Company’s shareholder transferring his subscribed capital to the
persons other than IAD Company’s shareholders;
	 
	 	11)	 	to make decision on IAD Company’s merger, separation, change of company’s form, dissolution
and liquidation, etc.;
	 
	 	12)	 	to make decision on changing IAD Company’s business scope;
	 
	 	13)	 	to revise IAD Company’s articles of association;
	 
	 	14)	 	to decide to change the contents or nature of IAD Company’s business;
	 
	 	15)	 	to decide to make a loan to any third party or incur any debts in IAD Company’s name;
	 
	 	16)	 	to decide to sell IAD Company’s any assets or rights to any third party, including but not
limited to intellectual property;

1

 

	 	17)	 	to decide to set up any security rights against IAD Company’s any assets (including both
tangible and intangible
assets) whatsoever such security is for;
	 
	 	18)	 	to decide to assign the contracts signed by IAD Company to any third party; and
	 
	 	19)	 	to decide any other rights that may materially affect IAD Company’s rights, obligations,
assets or management matters.

1.2 Sina Company agrees to accept the authorization contained in previous article made by the
Authorizer and shall exercise such shareholder’s voting power in the Authorizer’s name according to
the provisions of this Agreement.

2. Exercising of Voting Power

2.1 Within the term of authorization provided by this Agreement, the Authorizer’s entire
shareholder’s voting power in IAD Company shall be authorized to Sina Company to exercise. Without
Sina Company’s prior written consent, the Authorizer shall not, in the term of authorization, make
any decision that may materially affect IAD Company’s rights, obligations, assets or management,
shall not approve any plan that may materially affect IAD Company’s rights, obligations, assets or
management, shall not conduct any other activities that may materially affect IAD Company’s rights,
obligations, assets or management, and shall not exercise any his shareholder’s voting power in IAD
Company by any other means.

2.2 If Sina Company requests the Authorizer to provide special written authorization document to
Sina Company or any person appointed by Sina Company regarding to each specific matter, whether
such request made prior to or after such matter, the Authorizer must provide before the matter
occurs or provide in supplement after the matter occurs such written authorization document
according to Sina Company’s specific request.

2.3 In relation to any matters agreed upon by Sina Company by exercising shareholder’s voting
power, if necessary, Sina Company shall have the right to request the Authorizer to confirm by
signing on the relevant decisions of shareholder’s meeting or other similar written documents.

2.4 The Authorizer affirms that Sina Company shall have the right to submandate the other party to
exercise Sina Company’s any rights under this Agreement, and such submandate need not be approved
by the Authorizer, but shall be notified to the Authorizer in advance.

2.5 Sina Company shall report to the Authorizer the situation of authorized matters at the time he
deems proper. When this Agreement is terminated, Sina Company shall report the Authorizer the
results of authorized matters.

3. Term of Authorization

3.1 The term of authorization of shareholder’s voting power under this Agreement shall be from the
effective date of this Agreement to the date of IAD Company’s dissolution.

3.2 After consultation, the Parties agree that the term of authorization may be adjusted at any
time in written form with specific regulations.

4. Remuneration of Authorization

Sina Company agrees that the Authorizer shall be exempt from paying any remuneration to Sina
Company for authorized matters according to this Agreement.

5. Declaration and Guarantee

5.1 The Parties of this Agreement hereby represents, undertakes and guarantees to each other as
follows:

	 	1)	 	possess appropriate competence and power to conclude this Agreement;
	 
	 	2)	 	have capability to fulfill obligations under this Agreement;
	 
	 	3)	 	No performance of obligations under this Agreement is in breach of any restriction in legal
documents that binds.

5.2 This Agreement, once being signed, shall constitute to both parties legal and effective
obligations that can be enforced according to the provisions of this Agreement.

6. Liability for Breaching

2

 

6.1 Any Party’s direct or indirect violation of any provision of this Agreement, or non-performance
or unduly and non-sufficient performance of his obligations under this Agreement shall constitute
breach of this Agreement. The party
that obeys this Agreement (“the observant party”) shall have the right to, by written notification,
require the party in breach to rectify his nonperformance and take sufficient, effective and duly
measures to eliminate the results of breach, and compensate the observant party’s damage caused by
such breach.

6.2 After such breach occurs, if the observant party reasonably and objectively finds that such
breach has resulted in impossibility or unfairness for it to perform obligations under this
Agreement, the observant party shall be entitled to suspend performing its relevant obligations
under this Agreement with notice in writing giving to the party in breach, till the party in breach
ceases nonperformance and takes sufficient, effective and duly measures to eliminate the results of
breach, and compensates the observant party’s damage caused by such breach.

6.3 The party in breach compensating the observant party’s damage shall include the observant
party’s direct economic loss, any anticipatable indirect loss and additional fee caused by breach.
Such addition fee shall include, but not limit to, attorney fee, litigation or arbitration fee,
finance expenditure and travel expense, and etc.

7. Force Majeure

7.1 “Force Majeure” shall mean any event out of the parties’ reasonable control, non-foreseeable,
or unavoidable even has been foreseen and such event hinder, affect or delay any party’s
performance of all or part of his obligations according to this Agreement. Such events include, but
not limit to, government’s acts, natural disasters, war or any other similar events.

7.2 The party suffers Force Majeure may suspend performing his relevant obligations under this
Agreement that are failed to be performed by the reason of Force Majeure till the effect of Force
Majeure is eliminated, and shall not bear any liability of breach of this Agreement. But such party
shall exert himself as much as possible to overcome such event and reduce its negative effects.

7.3 The suffering party from Force Majeure shall provide the other party with legal certifications
of such event issued by the notary office (or other proper agency) of the area where the event
occurs, which if fails, the other party may request the suffering party to bear any liability for
breach according to the provisions of this Agreement.

8. Effectiveness, Modification and Termination

8.1 This Agreement shall enter into force from the date of signing and sealing by Parties and
terminates when the term of authorization provided by this Agreement expires.

8.2 Prior to the expiration of this Agreement, if the Authorizer transfers all its stocks of IAD
Company to Sina Company or other party agreed upon by Sina Company in written form in advance, the
Authorizer shall not be bound by any provisions of this Agreement from the date of completing stock
transfer. But the Authorizer shall notify the transferee in writing the existence of this Agreement
during the transfer, and the transferee’s full consent to be bound by this Agreement shall be the
precondition of transferring stock rights.

8.3 The Authorizer hereby irrevocably and permanently waives its right to rescind this Agreement at
any time.

8.4 The Parties may modify and supplement this Agreement in written form with consents from both.
Such modification and supplement signed by and between the Parties shall be part of this Agreement
with equal legal effect to this Agreement.

8.5 The Authorizer hereby agrees that Sina Company shall have the right to terminate this Agreement
from time to time without any reason by written notification rendered 10 days ahead and shall not
bear any liability for breach.

8.6 Earlier termination of this Agreement shall not impose any effect upon the Parties’ rights and
obligations occurred already according to this Agreement prior to the date of such termination.

9. Settlement of Dispute & Governing Law

9.1 The Parties shall settle with good faith all disputes regarding to interpretation and
enforcement of any provisions of this Agreement by consultation.

3

 

9.2 The disputes that are failed to be resolved by consultation shall be referred to China
International Economic and Trade Arbitration Committee for arbitration according to its existing
arbitration rules. The place of arbitration shall be in Beijing; and the language used in
arbitration shall be Chinese. The decision of arbitration shall be final and binding upon both
parties.

9.3 Laws and regulations of PRC shall be applied for conclusion, execution, interpretation and
settlement of disputes concerning this agreement.

10. Miscellaneous

10.1 This agreement is made into one original with two copies, one for each party, both with
equally legal effectiveness.

10.2 Titles and headlines contained in this Agreement are set for convenience to its readers only
and shall not impose any effect upon interpretation of any provisions of this Agreement.

10.3 If any provision of this Agreement is entirely or partially invalid or unenforceable for the
reason of violating laws or government regulations or other reasons, the affected part of such
provision shall be deemed as deleted. But deleting the affected part of such provision shall not
impose any effect upon the legal effect of other part of such provision and other provisions of
this Agreement. The Parties shall negotiate and conclude new provision to replace such invalid or
unenforceable provision.

10.4 Unless otherwise stipulated, non-exercise or deferred exercise by either party of any rights,
authority or privilege under this Agreement shall not be deemed as waiver of such rights, authority
or privilege. And independent or partial exercise of any rights, authority or privilege shall not
exclude the exercise of other rights, authority or privilege as well.

10.5 This Agreement constitutes the entire agreement concluded by the Parties regarding to the
subject matters of cooperation program, and shall replace any previous or present, verbal or
written agreements concluded by the Parties regarding to the subject matters of cooperation
program. If the Parties’ previous promises or previous agreements signed by the Parties regarding
to any matters under this Agreement do not comply with the provisions of this Agreement, this
Agreement shall prevail.

10.6 The Parties shall additionally negotiate and confirm any issues not covered by this agreement.

 
	 	 	 	 	 	 	 	 	 
	Employee	 	 	 	SINA.com Technology (China) Co. Limited	 	 
	 
	 	 	 	 	 	 	 	 
	Signature:

	 	/s/
	 	Authorized Representative:
	 	/s/
	 	 
	 

	 	 
	 	 	 	 	 	 

4

 

Agreement on Authorization to Exercise Shareholder’s Voting Power

This agreement is concluded by and between the following parties on 18 (Day) 08 (Month) 2007
(Year) in Haidian District, Beijing:

Party A: Y Wang (hereinafter referred to as “the Authorizer”)

Number of Identification Card:

Party B: SINA.com Technology (China) Co.Limited (hereinafter referred to as “Sina Company”)

Address: Room 1506, Ideal Int’l Mansion, No. 58, West Of North Forth Ring Rd., Haidian District,
Beijing, China.

WHEREAS:

	 	1.	 	The Authorizer holds 1.5% of stock rights of Beijing Sina Internet Information Service Co.,
Ltd. (hereinafter referred to as “ICP Company”) on the date of signing of this Agreement; and
to hold above-mentioned stock rights, the Authorizer owns a debt of RMB 300,000 Yuan to Sina
Company;
	 
	 	2.	 	The Authorizer is willing to authorize Sina Company full powers to exercise his entire
shareholder’s voting power in his name in shareholders’ meetings of ICP Company; SINA COMPANY
is willing to accept the above-mentioned authorization.

NOW, THEREFORE, after friendly consultation, the above parties conclude the following agreement
regarding to the matters of authorization of shareholder’s voting power:

1. Authorization of Voting Power

1.1The Authorizer hereby agrees to irrevocably authorize Sina Company, within the term of
authorization provided by this Agreement and in the Authorizer’s name, to exercise all
shareholder’s voting power enjoyed by the Authorizer according to law and ICP Company’s articles of
association in ICP Company’s shareholders’ meetings. Such shareholder’s voting power includes, but
not limits to, the following rights:

	 	1)	 	to decide ICP Company’s management policy and investment plan;
	 
	 	2)	 	to elect and change ICP Company’s directors, and decide the matters regarding to director’s
remuneration;
	 
	 	3)	 	to elect and change ICP Company’s supervisors, and decide the matters regarding to
supervisor’s remuneration;
	 
	 	4)	 	to review and approve the reports of ICP Company’s board of directors;
	 
	 	5)	 	to review and approve supervisor’s reports;
	 
	 	6)	 	to review and approve ICP Company’s annual financial budget bill and the proposal of final
accounts;
	 
	 	7)	 	to review and approve ICP Company’s profit distribution plan and the plan to make good
deficits;
	 
	 	8)	 	to make decision on ICP Company’s increasing or decreasing registered capital;
	 
	 	9)	 	to make decision on ICP Company’s issue of corporate bonds;
	 
	 	10)	 	to make decision on ICP Company’s shareholder transferring his subscribed capital to the
persons other than ICP Company’s shareholders;
	 
	 	11)	 	to make decision on ICP Company’s merger, separation, change of company’s form, dissolution
and liquidation, etc.;
	 
	 	12)	 	to make decision on changing ICP Company’s business scope;
	 
	 	13)	 	to revise ICP Company’s articles of association;
	 
	 	14)	 	to decide to change the contents or nature of ICP Company’s business;
	 
	 	15)	 	to decide to make a loan to any third party or incur any debts in ICP Company’s name;
	 
	 	16)	 	to decide to sell ICP Company’s any assets or rights to any third party, including but not
limited to intellectual property;
	 
	 	17)	 	to decide to set up any security rights against ICP Company’s any assets (including both
tangible and intangible assets) whatsoever such security is for;
	 
	 	18)	 	to decide to assign the contracts signed by ICP Company to any third party; and

1

 

	 	19)	 	to decide any other rights that may materially affect ICP Company’s rights, obligations,
assets or management matters.

1.2 Sina Company agrees to accept the authorization contained in previous article made by the
Authorizer and shall exercise such shareholder’s voting power in the Authorizer’s name according to
the provisions of this Agreement.

2. Exercising of Voting Power

2.1 Within the term of authorization provided by this Agreement, the Authorizer’s entire
shareholder’s voting power in ICP Company shall be authorized to Sina Company to exercise. Without
Sina Company’s prior written consent, the Authorizer shall not, in the term of authorization, make
any decision that may materially affect ICP Company’s rights, obligations, assets or management,
shall not approve any plan that may materially affect ICP Company’s rights, obligations, assets or
management, shall not conduct any other activities that may materially affect ICP Company’s rights,
obligations, assets or management, and shall not exercise any his shareholder’s voting power in ICP
Company by any other means.

2.2 If Sina Company requests the Authorizer to provide special written authorization document to
Sina Company or any person appointed by Sina Company regarding to each specific matter, whether
such request made prior to or after such matter, the Authorizer must provide before the matter
occurs or provide in supplement after the matter occurs such written authorization document
according to Sina Company’s specific request.

2.3 In relation to any matters agreed upon by Sina Company by exercising shareholder’s voting
power, if necessary, Sina Company shall have the right to request the Authorizer to confirm by
signing on the relevant decisions of shareholder’s meeting or other similar written documents.

2.4 The Authorizer affirms that Sina Company shall have the right to submandate the other party to
exercise Sina Company’s any rights under this Agreement, and such submandate need not be approved
by the Authorizer, but shall be notified to the Authorizer in advance.

2.5 Sina Company shall report to the Authorizer the situation of authorized matters at the time he
deems proper. When this Agreement is terminated, Sina Company shall report the Authorizer the
results of authorized matters.

3. Term of Authorization

3.1 The term of authorization of shareholder’s voting power under this Agreement shall be from the
effective date of this Agreement to the date of ICP Company’s dissolution.

3.2 After consultation, the Parties agree that the term of authorization may be adjusted at any
time in written form with specific regulations.

4. Remuneration of Authorization

Sina Company agrees that the Authorizer shall be exempt from paying any remuneration to Sina
Company for authorized matters according to this Agreement.

5. Declaration and Guarantee

5.1 The Parties of this Agreement hereby represents, undertakes and guarantees to each other as
follows:

	 	1)	 	possess appropriate competence and power to conclude this Agreement;
	 
	 	2)	 	have capability to fulfill obligations under this Agreement;
	 
	 	3)	 	No performance of obligations under this Agreement is in breach of any restriction in legal
documents that binds.

5.2 This Agreement, once being signed, shall constitute to both parties legal and effective
obligations that can be enforced according to the provisions of this Agreement.

6. Liability for Breaching

6.1 Any Party’s direct or indirect violation of any provision of this Agreement, or non-performance
or unduly and non-sufficient performance of his obligations under this Agreement shall constitute
breach of this Agreement. The party that obeys this Agreement (“the observant party”) shall have
the right to, by written notification, require the party in breach to rectify his nonperformance
and take sufficient, effective and duly measures to eliminate the results of breach, and compensate
the observant party’s damage caused by such breach.

6.2 After such breach occurs, if the observant party reasonably and objectively finds that such
breach has resulted in

2

 

impossibility or unfairness for it to perform obligations under this Agreement, the observant party
shall be entitled to suspend performing its relevant obligations under this Agreement with notice
in writing giving to the party in breach, till the party in breach ceases nonperformance and takes
sufficient, effective and duly measures to eliminate the results of breach, and compensates the
observant party’s damage caused by such breach.

6.3 The party in breach compensating the observant party’s damage shall include the observant
party’s direct economic loss, any anticipatable indirect loss and additional fee caused by breach.
Such addition fee shall include, but not limit to, attorney fee, litigation or arbitration fee,
finance expenditure and travel expense, and etc.

7. Force Majeure

7.1 “Force Majeure” shall mean any event out of the parties’ reasonable control, non-foreseeable,
or unavoidable even has been foreseen and such event hinder, affect or delay any party’s
performance of all or part of his obligations according to this Agreement. Such events include, but
not limit to, government’s acts, natural disasters, war or any other similar events.

7.2 The party suffers Force Majeure may suspend performing his relevant obligations under this
Agreement that are failed to be performed by the reason of Force Majeure till the effect of Force
Majeure is eliminated, and shall not bear any liability of breach of this Agreement. But such party
shall exert himself as much as possible to overcome such event and reduce its negative effects.

7.3 The suffering party from Force Majeure shall provide the other party with legal certifications
of such event issued by the notary office (or other proper agency) of the area where the event
occurs, which if fails, the other party may request the suffering party to bear any liability for
breach according to the provisions of this Agreement.

8. Effectiveness, Modification and Termination

8.1 This Agreement shall enter into force from the date of signing and sealing by Parties and
terminates when the term of authorization provided by this Agreement expires.

8.2 Prior to the expiration of this Agreement, if the Authorizer transfers all its stocks of ICP
Company to Sina Company or other party agreed upon by Sina Company in written form in advance, the
Authorizer shall not be bound by any provisions of this Agreement from the date of completing stock
transfer. But the Authorizer shall notify the transferee in writing the existence of this Agreement
during the transfer, and the transferee’s full consent to be bound by this Agreement shall be the
precondition of transferring stock rights.

8.3 The Authorizer hereby irrevocably and permanently waives its right to rescind this Agreement at
any time.

8.4 The Parties may modify and supplement this Agreement in written form with consents from both.
Such modification and supplement signed by and between the Parties shall be part of this Agreement
with equal legal effect to this Agreement.

8.5 The Authorizer hereby agrees that Sina Company shall have the right to terminate this Agreement
from time to time without any reason by written notification rendered 10 days ahead and shall not
bear any liability for breach.

8.6 Earlier termination of this Agreement shall not impose any effect upon the Parties’ rights and
obligations occurred already according to this Agreement prior to the date of such termination.

9. Settlement of Dispute & Governing Law

9.1 The Parties shall settle with good faith all disputes regarding to interpretation and
enforcement of any provisions of this Agreement by consultation.

9.2 The disputes that are failed to be resolved by consultation shall be referred to China
International Economic and Trade Arbitration Committee for arbitration according to its existing
arbitration rules. The place of arbitration shall be in Beijing; and the language used in
arbitration shall be Chinese. The decision of arbitration shall be final and binding upon both
parties.

9.3 Laws and regulations of PRC shall be applied for conclusion, execution, interpretation and
settlement of disputes concerning this agreement.

10. Miscellaneous

10.1 This agreement is made into one original with two copies, one for each party, both with
equally legal effectiveness.

3

 

10.2 Titles and headlines contained in this Agreement are set for convenience to its readers only
and shall not impose any effect upon interpretation of any provisions of this Agreement.

10.3 If any provision of this Agreement is entirely or partially invalid or unenforceable for the
reason of violating laws or government regulations or other reasons, the affected part of such
provision shall be deemed as deleted. But deleting the affected part of such provision shall not
impose any effect upon the legal effect of other part of such provision and other provisions of
this Agreement. The Parties shall negotiate and conclude new provision to replace such invalid or
unenforceable provision.

10.4 Unless otherwise stipulated, non-exercise or deferred exercise by either party of any rights,
authority or privilege under this Agreement shall not be deemed as waiver of such rights, authority
or privilege. And independent or partial exercise of any rights, authority or privilege shall not
exclude the exercise of other rights, authority or privilege as well.

10.5 This Agreement constitutes the entire agreement concluded by the Parties regarding to the
subject matters of cooperation program, and shall replace any previous or present, verbal or
written agreements concluded by the Parties regarding to the subject matters of cooperation
program. If the Parties’ previous promises or previous agreements signed by the Parties regarding
to any matters under this Agreement do not comply with the provisions of this Agreement, this
Agreement shall prevail.

10.6 The Parties shall additionally negotiate and confirm any issues not covered by this agreement.

 
	 	 	 	 	 	 	 	 	 
	Employee	 	 	 	SINA.com Technology (China) Co. Limited	 	 
	 
	 	 	 	 	 	 	 	 
	Signature:

	 	/s/
	 	Authorized Representative:
	 	/s/
	 	 
	 

	 	 
	 	 	 	 	 	 

4

 

Agreement on Authorization to Exercise Shareholder’s Voting Power

This agreement is concluded by and between the following parties on 18 (Day) 08 (Month) 2007 (Year)
in Haidian District, Beijing:

Party A: DH Lin (hereinafter referred to as “the Authorizer”)

Number of Identification Card:

Party B: SINA.com Technology (China) Co.Limited (hereinafter referred to as “Sina Company”)

Address: Room 1506, Ideal Int’l Mansion, No. 58, West Of North Forth Ring Rd., Haidian District,
Beijing, China.

WHEREAS:

	 	1.	 	The Authorizer holds 22.5% of stock rights of Beijing Sina Internet Information Service Co.,
Ltd. (hereinafter referred to as “ICP Company”) on the date of signing of this Agreement; and
to hold above-mentioned stock rights, the Authorizer owns a debt of RMB 4,500,000 Yuan to Sina
Company;
	 
	 	2.	 	The Authorizer is willing to authorize Sina Company full powers to exercise his entire
shareholder’s voting power in his name in shareholders’ meetings of ICP Company; SINA COMPANY
is willing to accept the above-mentioned authorization.

NOW, THEREFORE, after friendly consultation, the above parties conclude the following agreement
regarding to the matters of authorization of shareholder’s voting power:

1. Authorization of Voting Power

1.1The Authorizer hereby agrees to irrevocably authorize Sina Company, within the term of
authorization provided by this Agreement and in the Authorizer’s name, to exercise all
shareholder’s voting power enjoyed by the Authorizer according to law and ICP Company’s articles of
association in ICP Company’s shareholders’ meetings. Such shareholder’s voting power includes, but
not limits to, the following rights:

	 	1)	 	to decide ICP Company’s management policy and investment plan;
	 
	 	2)	 	to elect and change ICP Company’s directors, and decide the matters regarding to director’s
remuneration;
	 
	 	3)	 	to elect and change ICP Company’s supervisors, and decide the matters regarding to
supervisor’s remuneration;
	 
	 	4)	 	to review and approve the reports of ICP Company’s board of directors;
	 
	 	5)	 	to review and approve supervisor’s reports;
	 
	 	6)	 	to review and approve ICP Company’s annual financial budget bill and the proposal of final
accounts;
	 
	 	7)	 	to review and approve ICP Company’s profit distribution plan and the plan to make good
deficits;
	 
	 	8)	 	to make decision on ICP Company’s increasing or decreasing registered capital;
	 
	 	9)	 	to make decision on ICP Company’s issue of corporate bonds;
	 
	 	10)	 	to make decision on ICP Company’s shareholder transferring his subscribed capital to the
persons other than ICP Company’s shareholders;
	 
	 	11)	 	to make decision on ICP Company’s merger, separation, change of company’s form, dissolution
and liquidation, etc.;
	 
	 	12)	 	to make decision on changing ICP Company’s business scope;
	 
	 	13)	 	to revise ICP Company’s articles of association;
	 
	 	14)	 	to decide to change the contents or nature of ICP Company’s business;
	 
	 	15)	 	to decide to make a loan to any third party or incur any debts in ICP Company’s name;
	 
	 	16)	 	to decide to sell ICP Company’s any assets or rights to any third party, including but not
limited to intellectual property;
	 
	 	17)	 	to decide to set up any security rights against ICP Company’s any assets (including both
tangible and intangible assets) whatsoever such security is for;
	 
	 	18)	 	to decide to assign the contracts signed by ICP Company to any third party; and

1

 

	 	19)	 	to decide any other rights that may materially affect ICP Company’s rights, obligations,
assets or management matters.

1.2 Sina Company agrees to accept the authorization contained in previous article made by the
Authorizer and shall exercise such shareholder’s voting power in the Authorizer’s name according to
the provisions of this Agreement.

2. Exercising of Voting Power

2.1 Within the term of authorization provided by this Agreement, the Authorizer’s entire
shareholder’s voting power in ICP Company shall be authorized to Sina Company to exercise. Without
Sina Company’s prior written consent, the Authorizer shall not, in the term of authorization, make
any decision that may materially affect ICP Company’s rights, obligations, assets or management,
shall not approve any plan that may materially affect ICP Company’s rights, obligations, assets or
management, shall not conduct any other activities that may materially affect ICP Company’s rights,
obligations, assets or management, and shall not exercise any his shareholder’s voting power in ICP
Company by any other means.

2.2 If Sina Company requests the Authorizer to provide special written authorization document to
Sina Company or any person appointed by Sina Company regarding to each specific matter, whether
such request made prior to or after such matter, the Authorizer must provide before the matter
occurs or provide in supplement after the matter occurs such written authorization document
according to Sina Company’s specific request.

2.3 In relation to any matters agreed upon by Sina Company by exercising shareholder’s voting
power, if necessary, Sina Company shall have the right to request the Authorizer to confirm by
signing on the relevant decisions of shareholder’s meeting or other similar written documents.

2.4 The Authorizer affirms that Sina Company shall have the right to submandate the other party to
exercise Sina Company’s any rights under this Agreement, and such submandate need not be approved
by the Authorizer, but shall be notified to the Authorizer in advance.

2.5 Sina Company shall report to the Authorizer the situation of authorized matters at the time he
deems proper. When this Agreement is terminated, Sina Company shall report the Authorizer the
results of authorized matters.

3. Term of Authorization

3.1 The term of authorization of shareholder’s voting power under this Agreement shall be from the
effective date of this Agreement to the date of ICP Company’s dissolution.

3.2 After consultation, the Parties agree that the term of authorization may be adjusted at any
time in written form with specific regulations.

4. Remuneration of Authorization

Sina Company agrees that the Authorizer shall be exempt from paying any remuneration to Sina
Company for authorized matters according to this Agreement.

5. Declaration and Guarantee

5.1 The Parties of this Agreement hereby represents, undertakes and guarantees to each other as
follows:

	 	1)	 	possess appropriate competence and power to conclude this Agreement;
	 
	 	2)	 	have capability to fulfill obligations under this Agreement;
	 
	 	3)	 	No performance of obligations under this Agreement is in breach of any restriction in legal
documents that binds.

5.2 This Agreement, once being signed, shall constitute to both parties legal and effective
obligations that can be enforced according to the provisions of this Agreement.

6. Liability for Breaching

6.1 Any Party’s direct or indirect violation of any provision of this Agreement, or non-performance
or unduly and non-sufficient performance of his obligations under this Agreement shall constitute
breach of this Agreement. The party that obeys this Agreement (“the observant party”) shall have
the right to, by written notification, require the party in breach to rectify his nonperformance
and take sufficient, effective and duly measures to eliminate the results of breach, and compensate
the observant party’s damage caused by such breach.

6.2 After such breach occurs, if the observant party reasonably and objectively finds that such
breach has resulted in

2

 

impossibility or unfairness for it to perform obligations under this Agreement, the observant party
shall be entitled to suspend performing its relevant obligations under this Agreement with notice
in writing giving to the party in breach, till the party in breach ceases nonperformance and takes
sufficient, effective and duly measures to eliminate the results of breach, and compensates the
observant party’s damage caused by such breach.

6.3 The party in breach compensating the observant party’s damage shall include the observant
party’s direct economic loss, any anticipatable indirect loss and additional fee caused by breach.
Such addition fee shall include, but not limit to, attorney fee, litigation or arbitration fee,
finance expenditure and travel expense, and etc.

7. Force Majeure

7.1 “Force Majeure” shall mean any event out of the parties’ reasonable control, non-foreseeable,
or unavoidable even has been foreseen and such event hinder, affect or delay any party’s
performance of all or part of his obligations according to this Agreement. Such events include, but
not limit to, government’s acts, natural disasters, war or any other similar events.

7.2 The party suffers Force Majeure may suspend performing his relevant obligations under this
Agreement that are failed to be performed by the reason of Force Majeure till the effect of Force
Majeure is eliminated, and shall not bear any liability of breach of this Agreement. But such party
shall exert himself as much as possible to overcome such event and reduce its negative effects.

7.3 The suffering party from Force Majeure shall provide the other party with legal certifications
of such event issued by the notary office (or other proper agency) of the area where the event
occurs, which if fails, the other party may request the suffering party to bear any liability for
breach according to the provisions of this Agreement.

8. Effectiveness, Modification and Termination

8.1 This Agreement shall enter into force from the date of signing and sealing by Parties and
terminates when the term of authorization provided by this Agreement expires.

8.2 Prior to the expiration of this Agreement, if the Authorizer transfers all its stocks of ICP
Company to Sina Company or other party agreed upon by Sina Company in written form in advance, the
Authorizer shall not be bound by any provisions of this Agreement from the date of completing stock
transfer. But the Authorizer shall notify the transferee in writing the existence of this Agreement
during the transfer, and the transferee’s full consent to be bound by this Agreement shall be the
precondition of transferring stock rights.

8.3 The Authorizer hereby irrevocably and permanently waives its right to rescind this Agreement at
any time.

8.4 The Parties may modify and supplement this Agreement in written form with consents from both.
Such modification and supplement signed by and between the Parties shall be part of this Agreement
with equal legal effect to this Agreement.

8.5 The Authorizer hereby agrees that Sina Company shall have the right to terminate this Agreement
from time to time without any reason by written notification rendered 10 days ahead and shall not
bear any liability for breach.

8.6 Earlier termination of this Agreement shall not impose any effect upon the Parties’ rights and
obligations occurred
already according to this Agreement prior to the date of such termination.

9. Settlement of Dispute & Governing Law

9.1 The Parties shall settle with good faith all disputes regarding to interpretation and
enforcement of any provisions of this Agreement by consultation.

9.2 The disputes that are failed to be resolved by consultation shall be referred to China
International Economic and Trade Arbitration Committee for arbitration according to its existing
arbitration rules. The place of arbitration shall be in Beijing; and the language used in
arbitration shall be Chinese. The decision of arbitration shall be final and binding upon both
parties.

9.3 Laws and regulations of PRC shall be applied for conclusion, execution, interpretation and
settlement of disputes concerning this agreement.

10. Miscellaneous

10.1 This agreement is made into one original with two copies, one for each party, both with
equally legal effectiveness.

3

 

10.2 Titles and headlines contained in this Agreement are set for convenience to its readers only
and shall not impose any effect upon interpretation of any provisions of this Agreement.

10.3 If any provision of this Agreement is entirely or partially invalid or unenforceable for the
reason of violating laws or government regulations or other reasons, the affected part of such
provision shall be deemed as deleted. But deleting the affected part of such provision shall not
impose any effect upon the legal effect of other part of such provision and other provisions of
this Agreement. The Parties shall negotiate and conclude new provision to replace such invalid or
unenforceable provision.

10.4 Unless otherwise stipulated, non-exercise or deferred exercise by either party of any rights,
authority or privilege under this Agreement shall not be deemed as waiver of such rights, authority
or privilege. And independent or partial exercise of any rights, authority or privilege shall not
exclude the exercise of other rights, authority or privilege as well.

10.5 This Agreement constitutes the entire agreement concluded by the Parties regarding to the
subject matters of cooperation program, and shall replace any previous or present, verbal or
written agreements concluded by the Parties regarding to the subject matters of cooperation
program. If the Parties’ previous promises or previous agreements signed by the Parties regarding
to any matters under this Agreement do not comply with the provisions of this Agreement, this
Agreement shall prevail.

10.6 The Parties shall additionally negotiate and confirm any issues not covered by this agreement.

	 	 	 	 	 	 	 	 	 
	Employee	 	 	 	SINA.com Technology (China) Co. Limited	 	 
	 
	 	 	 	 	 	 	 	 
	Signature:

	 	/s/
	 	Authorized Representative:
	 	/s/
	 	 
	 

	 	 
	 	 	 	 	 	 

4

 

Agreement on Authorization to Exercise Shareholder’s Voting Power

This agreement is concluded by and between the following parties on 18 (Day) 08 (Month) 2007 (Year)
in Haidian District, Beijing:

Party A: T Chen (hereinafter referred to as “the Authorizer”)

Number of Identification Card:

Party B: SINA.com Technology (China) Co.Limited (hereinafter referred to as “Sina Company”)

Address: Room 1506, Ideal Int’l Mansion, No. 58, West Of North Forth Ring Rd., Haidian District,
Beijing, China.

WHEREAS:

	 	1.	 	The Authorizer holds 22.5% of stock rights of Beijing Sina Internet Information Service Co.,
Ltd. (hereinafter referred to as “ICP Company”) on the date of signing of this Agreement; and
to hold above-mentioned stock rights, the Authorizer owns a debt of RMB 4,500,000 Yuan to Sina
Company;
	 
	 	2.	 	The Authorizer is willing to authorize Sina Company full powers to exercise his entire
shareholder’s voting power in his name in shareholders’ meetings of ICP Company; SINA COMPANY
is willing to accept the above-mentioned authorization.

NOW, THEREFORE, after friendly consultation, the above parties conclude the following agreement
regarding to the matters of authorization of shareholder’s voting power:

1. Authorization of Voting Power

1.1The Authorizer hereby agrees to irrevocably authorize Sina Company, within the term of
authorization provided by this Agreement and in the Authorizer’s name, to exercise all
shareholder’s voting power enjoyed by the Authorizer according to law and ICP Company’s articles of
association in ICP Company’s shareholders’ meetings. Such shareholder’s voting power includes, but
not limits to, the following rights:

	 	1)	 	to decide ICP Company’s management policy and investment plan;
	 
	 	2)	 	to elect and change ICP Company’s directors, and decide the matters regarding to director’s
remuneration;
	 
	 	3)	 	to elect and change ICP Company’s supervisors, and decide the matters regarding to
supervisor’s remuneration;
	 
	 	4)	 	to review and approve the reports of ICP Company’s board of directors;
	 
	 	5)	 	to review and approve supervisor’s reports;
	 
	 	6)	 	to review and approve ICP Company’s annual financial budget bill and the proposal of final
accounts;
	 
	 	7)	 	to review and approve ICP Company’s profit distribution plan and the plan to make good
deficits;
	 
	 	8)	 	to make decision on ICP Company’s increasing or decreasing registered capital;
	 
	 	9)	 	to make decision on ICP Company’s issue of corporate bonds;
	 
	 	10)	 	to make decision on ICP Company’s shareholder transferring his subscribed capital to the
persons other than ICP Company’s shareholders;
	 
	 	11)	 	to make decision on ICP Company’s merger, separation, change of company’s form, dissolution
and liquidation, etc.;
	 
	 	12)	 	to make decision on changing ICP Company’s business scope;
	 
	 	13)	 	to revise ICP Company’s articles of association;
	 
	 	14)	 	to decide to change the contents or nature of ICP Company’s business;
	 
	 	15)	 	to decide to make a loan to any third party or incur any debts in ICP Company’s name;
	 
	 	16)	 	to decide to sell ICP Company’s any assets or rights to any third party, including but not
limited to intellectual property;
	 
	 	17)	 	to decide to set up any security rights against ICP Company’s any assets (including both
tangible and intangible assets) whatsoever such security is for;

1

 

	 	18)	 	to decide to assign the contracts signed by ICP Company to any third party; and
	 
	 	19)	 	to decide any other rights that may materially affect ICP Company’s rights, obligations,
assets or management matters.

1.2 Sina Company agrees to accept the authorization contained in previous article made by the
Authorizer and shall exercise such shareholder’s voting power in the Authorizer’s name according to
the provisions of this Agreement.

2. Exercising of Voting Power

2.1 Within the term of authorization provided by this Agreement, the Authorizer’s entire
shareholder’s voting power in ICP Company shall be authorized to Sina Company to exercise. Without
Sina Company’s prior written consent, the Authorizer shall not, in the term of authorization, make
any decision that may materially affect ICP Company’s rights, obligations, assets or management,
shall not approve any plan that may materially affect ICP Company’s rights, obligations, assets or
management, shall not conduct any other activities that may materially affect ICP Company’s rights,
obligations, assets or management, and shall not exercise any his shareholder’s voting power in ICP
Company by any other means.

2.2 If Sina Company requests the Authorizer to provide special written authorization document to
Sina Company or any person appointed by Sina Company regarding to each specific matter, whether
such request made prior to or after such matter, the Authorizer must provide before the matter
occurs or provide in supplement after the matter occurs such written authorization document
according to Sina Company’s specific request.

2.3 In relation to any matters agreed upon by Sina Company by exercising shareholder’s voting
power, if necessary, Sina Company shall have the right to request the Authorizer to confirm by
signing on the relevant decisions of shareholder’s meeting or other similar written documents.

2.4 The Authorizer affirms that Sina Company shall have the right to submandate the other party to
exercise Sina Company’s any rights under this Agreement, and such submandate need not be approved
by the Authorizer, but shall be notified to the Authorizer in advance.

2.5 Sina Company shall report to the Authorizer the situation of authorized matters at the time he
deems proper. When this Agreement is terminated, Sina Company shall report the Authorizer the
results of authorized matters.

3. Term of Authorization

3.1 The term of authorization of shareholder’s voting power under this Agreement shall be from the
effective date of this Agreement to the date of ICP Company’s dissolution.

3.2 After consultation, the Parties agree that the term of authorization may be adjusted at any
time in written form with specific regulations.

4. Remuneration of Authorization

Sina Company agrees that the Authorizer shall be exempt from paying any remuneration to Sina
Company for authorized matters according to this Agreement.

5. Declaration and Guarantee

5.1 The Parties of this Agreement hereby represents, undertakes and guarantees to each other as
follows:

	 	1)	 	possess appropriate competence and power to conclude this Agreement;
	 
	 	2)	 	have capability to fulfill obligations under this Agreement;
	 
	 	3)	 	No performance of obligations under this Agreement is in breach of any restriction in legal
documents that binds.

5.2 This Agreement, once being signed, shall constitute to both parties legal and effective
obligations that can be enforced according to the provisions of this Agreement.

6. Liability for Breaching

6.1 Any Party’s direct or indirect violation of any provision of this Agreement, or non-performance
or unduly and non-sufficient performance of his obligations under this Agreement shall constitute
breach of this Agreement. The party that obeys this Agreement (“the observant party”) shall have
the right to, by written notification, require the party in

2

 

breach to rectify his nonperformance and take sufficient, effective and duly measures to eliminate
the results of breach, and compensate the observant party’s damage caused by such breach.

6.2 After such breach occurs, if the observant party reasonably and objectively finds that such
breach has resulted in impossibility or unfairness for it to perform obligations under this
Agreement, the observant party shall be entitled to suspend performing its relevant obligations
under this Agreement with notice in writing giving to the party in breach, till the party in breach
ceases nonperformance and takes sufficient, effective and duly measures to eliminate the results of
breach, and compensates the observant party’s damage caused by such breach.

6.3 The party in breach compensating the observant party’s damage shall include the observant
party’s direct economic loss, any anticipatable indirect loss and additional fee caused by breach.
Such addition fee shall include, but not limit to, attorney fee, litigation or arbitration fee,
finance expenditure and travel expense, and etc.

7. Force Majeure

7.1 “Force Majeure” shall mean any event out of the parties’ reasonable control, non-foreseeable,
or unavoidable even has been foreseen and such event hinder, affect or delay any party’s
performance of all or part of his obligations according to this Agreement. Such events include, but
not limit to, government’s acts, natural disasters, war or any other similar events.

7.2 The party suffers Force Majeure may suspend performing his relevant obligations under this
Agreement that are failed to be performed by the reason of Force Majeure till the effect of Force
Majeure is eliminated, and shall not bear any liability of breach of this Agreement. But such party
shall exert himself as much as possible to overcome such event and reduce its negative effects.

7.3 The suffering party from Force Majeure shall provide the other party with legal certifications
of such event issued by the notary office (or other proper agency) of the area where the event
occurs, which if fails, the other party may request the suffering party to bear any liability for
breach according to the provisions of this Agreement.

8. Effectiveness, Modification and Termination

8.1 This Agreement shall enter into force from the date of signing and sealing by Parties and
terminates when the term of authorization provided by this Agreement expires.

8.2 Prior to the expiration of this Agreement, if the Authorizer transfers all its stocks of ICP
Company to Sina Company or other party agreed upon by Sina Company in written form in advance, the
Authorizer shall not be bound by any provisions of this Agreement from the date of completing stock
transfer. But the Authorizer shall notify the transferee in writing the existence of this Agreement
during the transfer, and the transferee’s full consent to be bound by this Agreement shall be the
precondition of transferring stock rights.

8.3 The Authorizer hereby irrevocably and permanently waives its right to rescind this Agreement at
any time.

8.4 The Parties may modify and supplement this Agreement in written form with consents from both.
Such modification and supplement signed by and between the Parties shall be part of this Agreement
with equal legal effect to this
Agreement.

8.5 The Authorizer hereby agrees that Sina Company shall have the right to terminate this Agreement
from time to time without any reason by written notification rendered 10 days ahead and shall not
bear any liability for breach.

8.6 Earlier termination of this Agreement shall not impose any effect upon the Parties’ rights and
obligations occurred already according to this Agreement prior to the date of such termination.

9. Settlement of Dispute & Governing Law

9.1 The Parties shall settle with good faith all disputes regarding to interpretation and
enforcement of any provisions of this Agreement by consultation.

9.2 The disputes that are failed to be resolved by consultation shall be referred to China
International Economic and Trade Arbitration Committee for arbitration according to its existing
arbitration rules. The place of arbitration shall be in Beijing; and the language used in
arbitration shall be Chinese. The decision of arbitration shall be final and binding upon

3

 

both parties.

9.3 Laws and regulations of PRC shall be applied for conclusion, execution, interpretation and
settlement of disputes concerning this agreement.

10. Miscellaneous

10.1 This agreement is made into one original with two copies, one for each party, both with
equally legal effectiveness.

10.2 Titles and headlines contained in this Agreement are set for convenience to its readers only
and shall not impose any effect upon interpretation of any provisions of this Agreement.

10.3 If any provision of this Agreement is entirely or partially invalid or unenforceable for the
reason of violating laws or government regulations or other reasons, the affected part of such
provision shall be deemed as deleted. But deleting the affected part of such provision shall not
impose any effect upon the legal effect of other part of such provision and other provisions of
this Agreement. The Parties shall negotiate and conclude new provision to replace such invalid or
unenforceable provision.

10.4 Unless otherwise stipulated, non-exercise or deferred exercise by either party of any rights,
authority or privilege under this Agreement shall not be deemed as waiver of such rights, authority
or privilege. And independent or partial exercise of any rights, authority or privilege shall not
exclude the exercise of other rights, authority or privilege as well.

10.5 This Agreement constitutes the entire agreement concluded by the Parties regarding to the
subject matters of cooperation program, and shall replace any previous or present, verbal or
written agreements concluded by the Parties regarding to the subject matters of cooperation
program. If the Parties’ previous promises or previous agreements signed by the Parties regarding
to any matters under this Agreement do not comply with the provisions of this Agreement, this
Agreement shall prevail.

10.6 The Parties shall additionally negotiate and confirm any issues not covered by this agreement.

	 	 	 	 	 	 	 	 	 
	Employee	 	 	 	SINA.com Technology (China) Co.Limited	 	 
	 
	 	 	 	 	 	 	 	 
	Signature:

	 	/s/
	 	Authorized Representative:
	 	/s/
	 	 
	 

	 	 
	 	 	 	 	 	 

4

 

Agreement on Authorization to Exercise Shareholder’s Voting Power

This agreement is concluded by and between the following parties on 18 (Day) 08 (Month) 2007 (Year)
in Haidian District, Beijing:

Party A: H Du (hereinafter referred to as “the Authorizer”)

Number of Identification Card:

Party B: SINA.com Technology (China) Co.Limited (hereinafter referred to as “Sina Company”)

Address: Room 1506, Ideal Int’l Mansion, No. 58, West Of North Forth Ring Rd., Haidian District,
Beijing, China.

WHEREAS:

	 	1.	 	The Authorizer holds 26.75% of stock rights of Beijing Sina Internet Information Service Co.,
Ltd. (hereinafter referred to as “ICP Company”) on the date of signing of this Agreement; and
to hold above-mentioned stock rights, the Authorizer owns a debt of RMB 5,350,000 Yuan to Sina
Company;
	 
	 	2.	 	The Authorizer is willing to authorize Sina Company full powers to exercise his entire
shareholder’s voting power in his name in shareholders’ meetings of ICP Company; SINA COMPANY
is willing to accept the above-mentioned authorization.

NOW, THEREFORE, after friendly consultation, the above parties conclude the following agreement
regarding to the matters of authorization of shareholder’s voting power:

1. Authorization of Voting Power

1.1The Authorizer hereby agrees to irrevocably authorize Sina Company, within the term of
authorization provided by this Agreement and in the Authorizer’s name, to exercise all
shareholder’s voting power enjoyed by the Authorizer according to law and ICP Company’s articles of
association in ICP Company’s shareholders’ meetings. Such shareholder’s voting power includes, but
not limits to, the following rights:

	 	1)	 	to decide ICP Company’s management policy and investment plan;
	 
	 	2)	 	to elect and change ICP Company’s directors, and decide the matters regarding to director’s
remuneration;
	 
	 	3)	 	to elect and change ICP Company’s supervisors, and decide the matters regarding to
supervisor’s remuneration;
	 
	 	4)	 	to review and approve the reports of ICP Company’s board of directors;
	 
	 	5)	 	to review and approve supervisor’s reports;
	 
	 	6)	 	to review and approve ICP Company’s annual financial budget bill and the proposal of final
accounts;
	 
	 	7)	 	to review and approve ICP Company’s profit distribution plan and the plan to make good
deficits;
	 
	 	8)	 	to make decision on ICP Company’s increasing or decreasing registered capital;
	 
	 	9)	 	to make decision on ICP Company’s issue of corporate bonds;
	 
	 	10)	 	to make decision on ICP Company’s shareholder transferring his subscribed capital to the
persons other than ICP Company’s shareholders;
	 
	 	11)	 	to make decision on ICP Company’s merger, separation, change of company’s form, dissolution
and liquidation, etc.;
	 
	 	12)	 	to make decision on changing ICP Company’s business scope;
	 
	 	13)	 	to revise ICP Company’s articles of association;
	 
	 	14)	 	to decide to change the contents or nature of ICP Company’s business;
	 
	 	15)	 	to decide to make a loan to any third party or incur any debts in ICP Company’s name;
	 
	 	16)	 	to decide to sell ICP Company’s any assets or rights to any third party, including but not
limited to intellectual property;
	 
	 	17)	 	to decide to set up any security rights against ICP Company’s any assets (including both
tangible and intangible

1

 

	 	 	 	assets) whatsoever such security is for;

	 	18)	 	to decide to assign the contracts signed by ICP Company to any third party; and
	 
	 	19)	 	to decide any other rights that may materially affect ICP Company’s rights, obligations,
assets or management matters.

1.2 Sina Company agrees to accept the authorization contained in previous article made by the
Authorizer and shall exercise such shareholder’s voting power in the Authorizer’s name according to
the provisions of this Agreement.

2. Exercising of Voting Power

2.1 Within the term of authorization provided by this Agreement, the Authorizer’s entire
shareholder’s voting power in ICP Company shall be authorized to Sina Company to exercise. Without
Sina Company’s prior written consent, the Authorizer shall not, in the term of authorization, make
any decision that may materially affect ICP Company’s rights, obligations, assets or management,
shall not approve any plan that may materially affect ICP Company’s rights, obligations, assets or
management, shall not conduct any other activities that may materially affect ICP Company’s rights,
obligations, assets or management, and shall not exercise any his shareholder’s voting power in ICP
Company by any other means.

2.2 If Sina Company requests the Authorizer to provide special written authorization document to
Sina Company or any person appointed by Sina Company regarding to each specific matter, whether
such request made prior to or after such matter, the Authorizer must provide before the matter
occurs or provide in supplement after the matter occurs such written authorization document
according to Sina Company’s specific request.

2.3 In relation to any matters agreed upon by Sina Company by exercising shareholder’s voting
power, if necessary, Sina Company shall have the right to request the Authorizer to confirm by
signing on the relevant decisions of shareholder’s meeting or other similar written documents.

2.4 The Authorizer affirms that Sina Company shall have the right to submandate the other party to
exercise Sina Company’s any rights under this Agreement, and such submandate need not be approved
by the Authorizer, but shall be notified to the Authorizer in advance.

2.5 Sina Company shall report to the Authorizer the situation of authorized matters at the time he
deems proper. When this Agreement is terminated, Sina Company shall report the Authorizer the
results of authorized matters.

3. Term of Authorization

3.1 The term of authorization of shareholder’s voting power under this Agreement shall be from the
effective date of this Agreement to the date of ICP Company’s dissolution.

3.2 After consultation, the Parties agree that the term of authorization may be adjusted at any
time in written form with specific regulations.

4. Remuneration of Authorization

Sina Company agrees that the Authorizer shall be exempt from paying any remuneration to Sina
Company for authorized matters according to this Agreement.

5. Declaration and Guarantee

5.1 The Parties of this Agreement hereby represents, undertakes and guarantees to each other as
follows:

	 	1)	 	possess appropriate competence and power to conclude this Agreement;
	 
	 	2)	 	have capability to fulfill obligations under this Agreement;
	 
	 	3)	 	No performance of obligations under this Agreement is in breach of any restriction in legal
documents that binds.

5.2 This Agreement, once being signed, shall constitute to both parties legal and effective
obligations that can be enforced according to the provisions of this Agreement.

6. Liability for Breaching

6.1 Any Party’s direct or indirect violation of any provision of this Agreement, or non-performance
or unduly and non-sufficient performance of his obligations under this Agreement shall constitute
breach of this Agreement. The party

2

 

that obeys this Agreement (“the observant party”) shall have the right to, by written notification,
require the party in breach to rectify his nonperformance and take sufficient, effective and duly
measures to eliminate the results of breach, and compensate the observant party’s damage caused by
such breach.

6.2 After such breach occurs, if the observant party reasonably and objectively finds that such
breach has resulted in impossibility or unfairness for it to perform obligations under this
Agreement, the observant party shall be entitled to suspend performing its relevant obligations
under this Agreement with notice in writing giving to the party in breach, till the party in breach
ceases nonperformance and takes sufficient, effective and duly measures to eliminate the results of
breach, and compensates the observant party’s damage caused by such breach.

6.3 The party in breach compensating the observant party’s damage shall include the observant
party’s direct economic loss, any anticipatable indirect loss and additional fee caused by breach.
Such addition fee shall include, but not limit to, attorney fee, litigation or arbitration fee,
finance expenditure and travel expense, and etc.

7. Force Majeure

7.1 “Force Majeure” shall mean any event out of the parties’ reasonable control, non-foreseeable,
or unavoidable even has been foreseen and such event hinder, affect or delay any party’s
performance of all or part of his obligations according to this Agreement. Such events include, but
not limit to, government’s acts, natural disasters, war or any other similar events.

7.2 The party suffers Force Majeure may suspend performing his relevant obligations under this
Agreement that are failed to be performed by the reason of Force Majeure till the effect of Force
Majeure is eliminated, and shall not bear any liability of breach of this Agreement. But such party
shall exert himself as much as possible to overcome such event and reduce its negative effects.

7.3 The suffering party from Force Majeure shall provide the other party with legal certifications
of such event issued by the notary office (or other proper agency) of the area where the event
occurs, which if fails, the other party may request the suffering party to bear any liability for
breach according to the provisions of this Agreement.

8. Effectiveness, Modification and Termination

8.1 This Agreement shall enter into force from the date of signing and sealing by Parties and
terminates when the term of authorization provided by this Agreement expires.

8.2 Prior to the expiration of this Agreement, if the Authorizer transfers all its stocks of ICP
Company to Sina Company or other party agreed upon by Sina Company in written form in advance, the
Authorizer shall not be bound by any provisions of this Agreement from the date of completing stock
transfer. But the Authorizer shall notify the transferee in writing the existence of this Agreement
during the transfer, and the transferee’s full consent to be bound by this Agreement shall be the
precondition of transferring stock rights.

8.3 The Authorizer hereby irrevocably and permanently waives its right to rescind this Agreement at
any time.

8.4 The Parties may modify and supplement this Agreement in written form with consents from both.
Such
modification and supplement signed by and between the Parties shall be part of this Agreement with
equal legal effect to this Agreement.

8.5 The Authorizer hereby agrees that Sina Company shall have the right to terminate this Agreement
from time to time without any reason by written notification rendered 10 days ahead and shall not
bear any liability for breach.

8.6 Earlier termination of this Agreement shall not impose any effect upon the Parties’ rights and
obligations occurred already according to this Agreement prior to the date of such termination.

9. Settlement of Dispute & Governing Law

9.1 The Parties shall settle with good faith all disputes regarding to interpretation and
enforcement of any provisions of this Agreement by consultation.

9.2 The disputes that are failed to be resolved by consultation shall be referred to China
International Economic and Trade Arbitration Committee for arbitration according to its existing
arbitration rules. The place of arbitration shall be

3

 

in Beijing; and the language used in arbitration shall be Chinese. The decision of arbitration
shall be final and binding upon both parties.

9.3 Laws and regulations of PRC shall be applied for conclusion, execution, interpretation and
settlement of disputes concerning this agreement.

10. Miscellaneous

10.1 This agreement is made into one original with two copies, one for each party, both with
equally legal effectiveness.

10.2 Titles and headlines contained in this Agreement are set for convenience to its readers only
and shall not impose any effect upon interpretation of any provisions of this Agreement.

10.3 If any provision of this Agreement is entirely or partially invalid or unenforceable for the
reason of violating laws or government regulations or other reasons, the affected part of such
provision shall be deemed as deleted. But deleting the affected part of such provision shall not
impose any effect upon the legal effect of other part of such provision and other provisions of
this Agreement. The Parties shall negotiate and conclude new provision to replace such invalid or
unenforceable provision.

10.4 Unless otherwise stipulated, non-exercise or deferred exercise by either party of any rights,
authority or privilege under this Agreement shall not be deemed as waiver of such rights, authority
or privilege. And independent or partial exercise of any rights, authority or privilege shall not
exclude the exercise of other rights, authority or privilege as well.

10.5 This Agreement constitutes the entire agreement concluded by the Parties regarding to the
subject matters of cooperation program, and shall replace any previous or present, verbal or
written agreements concluded by the Parties regarding to the subject matters of cooperation
program. If the Parties’ previous promises or previous agreements signed by the Parties regarding
to any matters under this Agreement do not comply with the provisions of this Agreement, this
Agreement shall prevail.

10.6 The Parties shall additionally negotiate and confirm any issues not covered by this agreement.

	 	 	 	 	 	 	 	 	 
	Employee	 	 	 	SINA.com Technology (China) Co. Limited	 	 
	 
	 	 	 	 	 	 	 	 
	Signature:

	 	/s/
	 	Authorized Representative:
	 	/s/
	 	 
	 

	 	 
	 	 	 	 	 	 

4

 

Agreement on Authorization to Exercise Shareholder’s Voting Power

This agreement is concluded by and between the following parties on 18 (Day)
08 (Month) 2007 (Year) in Haidian District, Beijing:

Party A: GM Xie (hereinafter referred to as “the Authorizer”)

Number of Identification Card:

Party B: SINA.com Technology (China) Co.Limited (hereinafter referred to as “Sina Company”)

Address: Room 1506, Ideal Int’l Mansion, No. 58, West Of North Forth Ring Rd., Haidian District,
Beijing, China.

WHEREAS:

	 	1.	 	The Authorizer holds 26.75% of stock rights of Beijing Sina Internet Information Service Co.,
Ltd. (hereinafter referred to as “ICP Company”) on the date of signing of this Agreement; and
to hold above-mentioned stock rights, the Authorizer owns a debt of RMB 5,350,000 Yuan to Sina
Company;
	 
	 	2.	 	The Authorizer is willing to authorize Sina Company full powers to exercise his entire
shareholder’s voting power in his name in shareholders’ meetings of ICP Company; SINA COMPANY
is willing to accept the above-mentioned authorization.

NOW, THEREFORE, after friendly consultation, the above parties conclude the following agreement
regarding to the matters of authorization of shareholder’s voting power:

1. Authorization of Voting Power

1.1The Authorizer hereby agrees to irrevocably authorize Sina Company, within the term of
authorization provided by this Agreement and in the Authorizer’s name, to exercise all
shareholder’s voting power enjoyed by the Authorizer according to law and ICP Company’s articles of
association in ICP Company’s shareholders’ meetings. Such shareholder’s voting power includes, but
not limits to, the following rights:

	 	1)	 	to decide ICP Company’s management policy and investment plan;
	 
	 	2)	 	to elect and change ICP Company’s directors, and decide the matters regarding to director’s
remuneration;
	 
	 	3)	 	to elect and change ICP Company’s supervisors, and decide the matters regarding to
supervisor’s remuneration;
	 
	 	4)	 	to review and approve the reports of ICP Company’s board of directors;
	 
	 	5)	 	to review and approve supervisor’s reports;
	 
	 	6)	 	to review and approve ICP Company’s annual financial budget bill and the proposal of final
accounts;
	 
	 	7)	 	to review and approve ICP Company’s profit distribution plan and the plan to make good
deficits;
	 
	 	8)	 	to make decision on ICP Company’s increasing or decreasing registered capital;
	 
	 	9)	 	to make decision on ICP Company’s issue of corporate bonds;
	 
	 	10)	 	to make decision on ICP Company’s shareholder transferring his subscribed capital to the
persons other than ICP Company’s shareholders;
	 
	 	11)	 	to make decision on ICP Company’s merger, separation, change of company’s form, dissolution
and liquidation, etc.;
	 
	 	12)	 	to make decision on changing ICP Company’s business scope;
	 
	 	13)	 	to revise ICP Company’s articles of association;
	 
	 	14)	 	to decide to change the contents or nature of ICP Company’s business;
	 
	 	15)	 	to decide to make a loan to any third party or incur any debts in ICP Company’s name;
	 
	 	16)	 	to decide to sell ICP Company’s any assets or rights to any third party, including but not
limited to intellectual property;
	 
	 	17)	 	to decide to set up any security rights against ICP Company’s any assets (including both
tangible and intangible assets) whatsoever such security is for;
	 
	 	18)	 	to decide to assign the contracts signed by ICP Company to any third party; and

1

 

	 	19)	 	to decide any other rights that may materially affect ICP Company’s rights, obligations,
assets or management matters.

1.2 Sina Company agrees to accept the authorization contained in previous article made by the
Authorizer and shall exercise such shareholder’s voting power in the Authorizer’s name according to
the provisions of this Agreement.

2. Exercising of Voting Power

2.1 Within the term of authorization provided by this Agreement, the Authorizer’s entire
shareholder’s voting power in ICP Company shall be authorized to Sina Company to exercise. Without
Sina Company’s prior written consent, the Authorizer shall not, in the term of authorization, make
any decision that may materially affect ICP Company’s rights, obligations, assets or management,
shall not approve any plan that may materially affect ICP Company’s rights, obligations, assets or
management, shall not conduct any other activities that may materially affect ICP Company’s rights,
obligations, assets or
management, and shall not exercise any his shareholder’s voting power in ICP Company by any other
means.

2.2 If Sina Company requests the Authorizer to provide special written authorization document to
Sina Company or any person appointed by Sina Company regarding to each specific matter, whether
such request made prior to or after such matter, the Authorizer must provide before the matter
occurs or provide in supplement after the matter occurs such written authorization document
according to Sina Company’s specific request.

2.3 In relation to any matters agreed upon by Sina Company by exercising shareholder’s voting
power, if necessary, Sina Company shall have the right to request the Authorizer to confirm by
signing on the relevant decisions of shareholder’s meeting or other similar written documents.

2.4 The Authorizer affirms that Sina Company shall have the right to submandate the other party to
exercise Sina Company’s any rights under this Agreement, and such submandate need not be approved
by the Authorizer, but shall be notified to the Authorizer in advance.

2.5 Sina Company shall report to the Authorizer the situation of authorized matters at the time he
deems proper. When this Agreement is terminated, Sina Company shall report the Authorizer the
results of authorized matters.

3. Term of Authorization

3.1 The term of authorization of shareholder’s voting power under this Agreement shall be from the
effective date of this Agreement to the date of ICP Company’s dissolution.

3.2 After consultation, the Parties agree that the term of authorization may be adjusted at any
time in written form with specific regulations.

4. Remuneration of Authorization

Sina Company agrees that the Authorizer shall be exempt from paying any remuneration to Sina
Company for authorized matters according to this Agreement.

5. Declaration and Guarantee

5.1 The Parties of this Agreement hereby represents, undertakes and guarantees to each other as
follows:

	 	1)	 	possess appropriate competence and power to conclude this Agreement;
	 
	 	2)	 	have capability to fulfill obligations under this Agreement;
	 
	 	3)	 	No performance of obligations under this Agreement is in breach of any restriction in legal
documents that binds.

5.2 This Agreement, once being signed, shall constitute to both parties legal and effective
obligations that can be enforced according to the provisions of this Agreement.

6. Liability for Breaching

6.1 Any Party’s direct or indirect violation of any provision of this Agreement, or non-performance
or unduly and non-sufficient performance of his obligations under this Agreement shall constitute
breach of this Agreement. The party that obeys this Agreement (“the observant party”) shall have
the right to, by written notification, require the party in breach to rectify his nonperformance
and take sufficient, effective and duly measures to eliminate the results of breach, and compensate
the observant party’s damage caused by such breach.

6.2 After such breach occurs, if the observant party reasonably and objectively finds that such
breach has resulted in

2

 

impossibility or unfairness for it to perform obligations under this
Agreement, the observant party shall be entitled to suspend performing its relevant obligations
under this Agreement with notice in writing giving to the party in breach, till the party in breach
ceases nonperformance and takes sufficient, effective and duly measures to eliminate the results of
breach, and compensates the observant party’s damage caused by such breach.

6.3 The party in breach compensating the observant party’s damage shall include the observant
party’s direct economic loss, any anticipatable indirect loss and additional fee caused by breach.
Such addition fee shall include, but not limit to, attorney fee, litigation or arbitration fee,
finance expenditure and travel expense, and etc.

7. Force Majeure

7.1 “Force Majeure” shall mean any event out of the parties’ reasonable control, non-foreseeable,
or unavoidable even has been foreseen and such event hinder, affect or delay any party’s
performance of all or part of his obligations according to this Agreement. Such events include, but
not limit to, government’s acts, natural disasters, war or any other similar events.

7.2 The party suffers Force Majeure may suspend performing his relevant obligations under this
Agreement that are failed to be performed by the reason of Force Majeure till the effect of Force
Majeure is eliminated, and shall not bear any liability of breach of this Agreement. But such party
shall exert himself as much as possible to overcome such event and reduce its negative effects.

7.3 The suffering party from Force Majeure shall provide the other party with legal certifications
of such event issued by the notary office (or other proper agency) of the area where the event
occurs, which if fails, the other party may request the suffering party to bear any liability for
breach according to the provisions of this Agreement.

8. Effectiveness, Modification and Termination

8.1 This Agreement shall enter into force from the date of signing and sealing by Parties and
terminates when the term of authorization provided by this Agreement expires.

8.2 Prior to the expiration of this Agreement, if the Authorizer transfers all its stocks of ICP
Company to Sina Company or other party agreed upon by Sina Company in written form in advance, the
Authorizer shall not be bound by any provisions of this Agreement from the date of completing stock
transfer. But the Authorizer shall notify the transferee in writing the existence of this Agreement
during the transfer, and the transferee’s full consent to be bound by this Agreement shall be the
precondition of transferring stock rights.

8.3 The Authorizer hereby irrevocably and permanently waives its right to rescind this Agreement at
any time.

8.4 The Parties may modify and supplement this Agreement in written form with consents from both.
Such modification and supplement signed by and between the Parties shall be part of this Agreement
with equal legal effect to this Agreement.

8.5 The Authorizer hereby agrees that Sina Company shall have the right to terminate this Agreement
from time to time without any reason by written notification rendered 10 days ahead and shall not
bear any liability for breach.

8.6 Earlier termination of this Agreement shall not impose any effect upon the Parties’ rights and
obligations occurred already according to this Agreement prior to the date of such termination.

9. Settlement of Dispute & Governing Law

9.1 The Parties shall settle with good faith all disputes regarding to interpretation and
enforcement of any provisions of this Agreement by consultation.

9.2 The disputes that are failed to be resolved by consultation shall be referred to China
International Economic and Trade Arbitration Committee for arbitration according to its existing
arbitration rules. The place of arbitration shall be in Beijing; and the language used in
arbitration shall be Chinese. The decision of arbitration shall be final and binding upon both
parties.

9.3 Laws and regulations of PRC shall be applied for conclusion, execution, interpretation and
settlement of disputes concerning this agreement.

10. Miscellaneous

10.1 This agreement is made into one original with two copies, one for each party, both with
equally legal effectiveness.

3

 

10.2 Titles and headlines contained in this Agreement are set for convenience to its readers only
and shall not impose any effect upon interpretation of any provisions of this Agreement.

10.3 If any provision of this Agreement is entirely or partially invalid or unenforceable for the
reason of violating laws or government regulations or other reasons, the affected part of such
provision shall be deemed as deleted. But deleting the affected part of such provision shall not
impose any effect upon the legal effect of other part of such provision and other provisions of
this Agreement. The Parties shall negotiate and conclude new provision to replace such invalid or
unenforceable provision.

10.4 Unless otherwise stipulated, non-exercise or deferred exercise by either party of any rights,
authority or privilege under this Agreement shall not be deemed as waiver of such rights, authority
or privilege. And independent or partial exercise of any rights, authority or privilege shall not
exclude the exercise of other rights, authority or privilege as well.

10.5 This Agreement constitutes the entire agreement concluded by the Parties regarding to the
subject matters of cooperation program, and shall replace any previous or present, verbal or
written agreements concluded by the Parties regarding to the subject matters of cooperation
program. If the Parties’ previous promises or previous agreements signed by
the Parties regarding to any matters under this Agreement do not comply with the provisions of this
Agreement, this Agreement shall prevail.

10.6 The Parties shall additionally negotiate and confirm any issues not covered by this agreement.

	 	 	 	 	 	 	 	 	 
	Employee	 	 	 	SINA.com Technology (China) Co. Limited	 	 
	 
	 	 	 	 	 	 	 	 
	Signature:

	 	/s/
	 	Authorized Representative:
	 	/s/
	 	 
	 

	 	 
	 	 	 	 	 	 

4

 

Agreement on Authorization to Exercise Shareholder’s Voting Power

This agreement is concluded by and between the following parties on 31 (Day)
12 (Month) 2007 (Year) in Haidian District, Beijing:

Party A: D Duan (hereinafter referred to as “the Authorizer”)

Number of Identification Card:

Party B: SINA.com Technology (China) Co.Limited (hereinafter referred to as “Sina Company”)

Address: Room 1506, Ideal Int’l Mansion, No. 58, West Of North Forth Ring Rd., Haidian District,
Beijing, China.

WHEREAS:

	 	1.	 	The Authorizer holds 30% of stock rights of Beijing Star-Village Online Cultural Development
Co. Ltd. (hereinafter referred to as “StarVI”) on the date of signing of this Agreement; and
to hold above-mentioned stock rights, the Authorizer owns a debt of RMB 3,000,000 Yuan to Sina
Company;
	 
	 	2.	 	The Authorizer is willing to authorize Sina Company full powers to exercise his entire
shareholder’s voting power in his name in shareholders’ meetings of StarVI; SINA COMPANY is
willing to accept the above-mentioned authorization.

NOW, THEREFORE, after friendly consultation, the above parties conclude the following agreement
regarding to the matters of authorization of shareholder’s voting power:

1. Authorization of Voting Power

1.1The Authorizer hereby agrees to irrevocably authorize Sina Company, within the term of
authorization provided by this Agreement and in the Authorizer’s name, to exercise all
shareholder’s voting power enjoyed by the Authorizer according to law and StarVI’s articles of
association in StarVI’s shareholders’ meetings. Such shareholder’s voting power includes, but not
limits to, the following rights:

	 	1)	 	to decide StarVI’s management policy and investment plan;
	 
	 	2)	 	to elect and change StarVI’s directors, and decide the matters regarding to director’s
remuneration;
	 
	 	3)	 	to elect and change StarVI’s supervisors, and decide the matters regarding to supervisor’s
remuneration;
	 
	 	4)	 	to review and approve the reports of StarVI’s board of directors;
	 
	 	5)	 	to review and approve supervisor’s reports;
	 
	 	6)	 	to review and approve StarVI’s annual financial budget bill and the proposal of final
accounts;
	 
	 	7)	 	to review and approve StarVI’s profit distribution plan and the plan to make good deficits;
	 
	 	8)	 	to make decision on StarVI’s increasing or decreasing registered capital;
	 
	 	9)	 	to make decision on StarVI’s issue of corporate bonds;
	 
	 	10)	 	to make decision on StarVI’s shareholder transferring his subscribed capital to the persons
other than StarVI’s shareholders;
	 
	 	11)	 	to make decision on StarVI’s merger, separation, change of company’s form, dissolution and
liquidation, etc.;
	 
	 	12)	 	to make decision on changing StarVI’s business scope;
	 
	 	13)	 	to revise StarVI’s articles of association;
	 
	 	14)	 	to decide to change the contents or nature of StarVI’s business;
	 
	 	15)	 	to decide to make a loan to any third party or incur any debts in StarVI’s name;
	 
	 	16)	 	to decide to sell StarVI’s any assets or rights to any third party, including but not limited
to intellectual property;
	 
	 	17)	 	to decide to set up any security rights against StarVI’s any assets (including both tangible
and intangible assets) whatsoever such security is for;
	 
	 	18)	 	to decide to assign the contracts signed by StarVI to any third party; and
	 
	 	19)	 	to decide any other rights that may materially affect StarVI’s rights, obligations, assets or
management matters.

1

 

1.2 Sina Company agrees to accept the authorization contained in previous article made by the
Authorizer and shall exercise such shareholder’s voting power in the Authorizer’s name according to
the provisions of this Agreement.

2. Exercising of Voting Power

2.1 Within the term of authorization provided by this Agreement, the Authorizer’s entire
shareholder’s voting power in StarVI shall be authorized to Sina Company to exercise. Without Sina
Company’s prior written consent, the Authorizer shall not, in the term of authorization, make any
decision that may materially affect StarVI’s rights, obligations, assets or management, shall not
approve any plan that may materially affect StarVI’s rights, obligations, assets or management,
shall not conduct any other activities that may materially affect StarVI’s rights, obligations,
assets or management, and shall not exercise any his shareholder’s voting power in StarVI by any
other means.

2.2 If Sina Company requests the Authorizer to provide special written authorization document to
Sina Company or any person appointed by Sina Company regarding to each specific matter, whether
such request made prior to or after such matter, the Authorizer must provide before the matter
occurs or provide in supplement after the matter occurs such written authorization document
according to Sina Company’s specific request.

2.3 In relation to any matters agreed upon by Sina Company by exercising shareholder’s voting
power, if necessary, Sina Company shall have the right to request the Authorizer to confirm by
signing on the relevant decisions of shareholder’s meeting or other similar written documents.

2.4 The Authorizer affirms that Sina Company shall have the right to submandate the other party to
exercise Sina Company’s any rights under this Agreement, and such submandate need not be approved
by the Authorizer, but shall be notified to the Authorizer in advance.

2.5 Sina Company shall report to the Authorizer the situation of authorized matters at the time he
deems proper. When this Agreement is terminated, Sina Company shall report the Authorizer the
results of authorized matters.

3. Term of Authorization

3.1 The term of authorization of shareholder’s voting power under this Agreement shall be from the
effective date of this Agreement to the date of StarVI’s dissolution.

3.2 After consultation, the Parties agree that the term of authorization may be adjusted at any
time in written form with specific regulations.

4. Remuneration of Authorization

Sina Company agrees that the Authorizer shall be exempt from paying any remuneration to Sina
Company for authorized matters according to this Agreement.

5. Declaration and Guarantee

5.1 The Parties of this Agreement hereby represents, undertakes and guarantees to each other as
follows:

	 	1)	 	possess appropriate competence and power to conclude this Agreement;
	 
	 	2)	 	have capability to fulfill obligations under this Agreement;
	 
	 	3)	 	No performance of obligations under this Agreement is in breach of any restriction in legal
documents that binds.

5.2 This Agreement, once being signed, shall constitute to both parties legal and effective
obligations that can be enforced according to the provisions of this Agreement.

6. Liability for Breaching

6.1 Any Party’s direct or indirect violation of any provision of this Agreement, or non-performance
or unduly and non-sufficient performance of his obligations under this Agreement shall constitute
breach of this Agreement. The party that obeys this Agreement (“the observant party”) shall have
the right to, by written notification, require the party in breach to rectify his nonperformance
and take sufficient, effective and duly measures to eliminate the results of breach, and compensate
the observant party’s damage caused by such breach.

6.2 After such breach occurs, if the observant party reasonably and objectively finds that such
breach has resulted in impossibility or unfairness for it to perform obligations under this
Agreement, the observant party shall be entitled to suspend

2

 

performing its relevant obligations
under this Agreement with notice in writing giving to the party in breach, till the party in breach
ceases nonperformance and takes sufficient, effective and duly measures to eliminate the results of
breach, and compensates the observant party’s damage caused by such breach.

6.3 The party in breach compensating the observant party’s damage shall include the observant
party’s direct economic loss, any anticipatable indirect loss and additional fee caused by breach.
Such addition fee shall include, but not limit to, attorney fee, litigation or arbitration fee,
finance expenditure and travel expense, and etc.

7. Force Majeure

7.1 “Force Majeure” shall mean any event out of the parties’ reasonable control, non-foreseeable,
or unavoidable even has been foreseen and such event hinder, affect or delay any party’s
performance of all or part of his obligations according to this Agreement. Such events include, but
not limit to, government’s acts, natural disasters, war or any other similar events.

7.2 The party suffers Force Majeure may suspend performing his relevant obligations under this
Agreement that are failed to be performed by the reason of Force Majeure till the effect of Force
Majeure is eliminated, and shall not bear any liability of breach of this Agreement. But such party
shall exert himself as much as possible to overcome such event and reduce its negative effects.

7.3 The suffering party from Force Majeure shall provide the other party with legal certifications
of such event issued by the notary office (or other proper agency) of the area where the event
occurs, which if fails, the other party may request the suffering party to bear any liability for
breach according to the provisions of this Agreement.

8. Effectiveness, Modification and Termination

8.1 This Agreement shall enter into force from the date of signing and sealing by Parties and
terminates when the term of authorization provided by this Agreement expires.

8.2 Prior to the expiration of this Agreement, if the Authorizer transfers all its stocks of StarVI
to Sina Company or other party agreed upon by Sina Company in written form in advance, the
Authorizer shall not be bound by any provisions of this Agreement from the date of completing stock
transfer. But the Authorizer shall notify the transferee in writing the existence of this Agreement
during the transfer, and the transferee’s full consent to be bound by this Agreement shall be the
precondition of transferring stock rights.

8.3 The Authorizer hereby irrevocably and permanently waives its right to rescind this Agreement at
any time.

8.4 The Parties may modify and supplement this Agreement in written form with consents from both.
Such modification and supplement signed by and between the Parties shall be part of this Agreement
with equal legal effect to this Agreement.

8.5 The Authorizer hereby agrees that Sina Company shall have the right to terminate this Agreement
from time to time without any reason by written notification rendered 10 days ahead and shall not
bear any liability for breach.

8.6 Earlier termination of this Agreement shall not impose any effect upon the Parties’ rights and
obligations occurred already according to this Agreement prior to the date of such termination.

9. Settlement of Dispute & Governing Law

9.1 The Parties shall settle with good faith all disputes regarding to interpretation and
enforcement of any provisions of this Agreement by consultation.

9.2 The disputes that are failed to be resolved by consultation shall be referred to China
International Economic and Trade Arbitration Committee for arbitration according to its existing
arbitration rules. The place of arbitration shall be in Beijing; and the language used in
arbitration shall be Chinese. The decision of arbitration shall be final and binding upon both
parties.

9.3 Laws and regulations of PRC shall be applied for conclusion, execution, interpretation and
settlement of disputes concerning this agreement.

10. Miscellaneous

10.1 This agreement is made into one original with two copies, one for each party, both with
equally legal effectiveness.

10.2 Titles and headlines contained in this Agreement are set for convenience to its readers only
and shall not impose any effect upon interpretation of any provisions of this Agreement.

3

 

10.3 If any provision of this Agreement is entirely or partially invalid or unenforceable for the
reason of violating laws or government regulations or other reasons, the affected part of such
provision shall be deemed as deleted. But deleting the affected part of such provision shall not
impose any effect upon the legal effect of other part of such provision and other provisions of
this Agreement. The Parties shall negotiate and conclude new provision to replace such invalid or
unenforceable provision.

10.4 Unless otherwise stipulated, non-exercise or deferred exercise by either party of any rights,
authority or privilege under this Agreement shall not be deemed as waiver of such rights, authority
or privilege. And independent or partial exercise of any rights, authority or privilege shall not
exclude the exercise of other rights, authority or privilege as well.

10.5 This Agreement constitutes the entire agreement concluded by the Parties regarding to the
subject matters of cooperation program, and shall replace any previous or present, verbal or
written agreements concluded by the Parties regarding to the subject matters of cooperation
program. If the Parties’ previous promises or previous agreements signed by the Parties regarding
to any matters under this Agreement do not comply with the provisions of this Agreement, this
Agreement shall prevail.

10.6 The Parties shall additionally negotiate and confirm any issues not covered by this agreement.

	 	 	 	 	 	 	 	 	 
	Employee	 	 	 	SINA.com Technology (China) Co. Limited	 	 
	 
	 	 	 	 	 	 	 	 
	Signature:

	 	/s/
	 	Authorized Representative:
	 	/s/
	 	 
	 

	 	 
	 	 	 	 	 	 

4

 

Agreement on Authorization to Exercise Shareholder’s Voting Power

This agreement is concluded by and between the following parties on 31 (Day)
12 (Month) 2007 (Year) in Haidian District, Beijing:

Party A: XY Yi (hereinafter referred to as “the Authorizer”)

Number of Identification Card:

Party B: SINA.com Technology (China) Co.Limited (hereinafter referred to as “Sina Company”)

Address: Room 1506, Ideal Int’l Mansion, No. 58, West Of North Forth Ring Rd., Haidian District,
Beijing, China.

WHEREAS:

	 	1.	 	The Authorizer holds 30% of stock rights of Beijing Star-Village Online Cultural Development
Co. Ltd. (hereinafter referred to as “StarVI”) on the date of signing of this Agreement; and
to hold above-mentioned stock rights, the Authorizer owns a debt of RMB 3,000,000 Yuan to Sina
Company;
	 
	 	2.	 	The Authorizer is willing to authorize Sina Company full powers to exercise his entire
shareholder’s voting power in his name in shareholders’ meetings of StarVI; SINA COMPANY is
willing to accept the above-mentioned authorization.

NOW, THEREFORE, after friendly consultation, the above parties conclude the following agreement
regarding to the matters of authorization of shareholder’s voting power:

1. Authorization of Voting Power

1.1The Authorizer hereby agrees to irrevocably authorize Sina Company, within the term of
authorization provided by this Agreement and in the Authorizer’s name, to exercise all
shareholder’s voting power enjoyed by the Authorizer according to law and StarVI’s articles of
association in StarVI’s shareholders’ meetings. Such shareholder’s voting power includes, but not
limits to, the following rights:

	 	1)	 	to decide StarVI’s management policy and investment plan;
	 
	 	2)	 	to elect and change StarVI’s directors, and decide the matters regarding to director’s
remuneration;
	 
	 	3)	 	to elect and change StarVI’s supervisors, and decide the matters regarding to supervisor’s
remuneration;
	 
	 	4)	 	to review and approve the reports of StarVI’s board of directors;
	 
	 	5)	 	to review and approve supervisor’s reports;
	 
	 	6)	 	to review and approve StarVI’s annual financial budget bill and the proposal of final
accounts;
	 
	 	7)	 	to review and approve StarVI’s profit distribution plan and the plan to make good deficits;
	 
	 	8)	 	to make decision on StarVI’s increasing or decreasing registered capital;
	 
	 	9)	 	to make decision on StarVI’s issue of corporate bonds;
	 
	 	10)	 	to make decision on StarVI’s shareholder transferring his subscribed capital to the persons
other than StarVI’s shareholders;
	 
	 	11)	 	to make decision on StarVI’s merger, separation, change of company’s form, dissolution and
liquidation, etc.;
	 
	 	12)	 	to make decision on changing StarVI’s business scope;
	 
	 	13)	 	to revise StarVI’s articles of association;
	 
	 	14)	 	to decide to change the contents or nature of StarVI’s business;
	 
	 	15)	 	to decide to make a loan to any third party or incur any debts in StarVI’s name;
	 
	 	16)	 	to decide to sell StarVI’s any assets or rights to any third party, including but not limited
to intellectual property;
	 
	 	17)	 	to decide to set up any security rights against StarVI’s any assets (including both tangible
and intangible assets) whatsoever such security is for;
	 
	 	18)	 	to decide to assign the contracts signed by StarVI to any third party; and

1

 

	 	19)	 	to decide any other rights that may materially affect StarVI’s rights, obligations, assets or
management matters.

1.2 Sina Company agrees to accept the authorization contained in previous article made by the
Authorizer and shall exercise such shareholder’s voting power in the Authorizer’s name according to
the provisions of this Agreement.

2. Exercising of Voting Power

2.1 Within the term of authorization provided by this Agreement, the Authorizer’s entire
shareholder’s voting power in StarVI shall be authorized to Sina Company to exercise. Without Sina
Company’s prior written consent, the Authorizer shall not, in the term of authorization, make any
decision that may materially affect StarVI’s rights, obligations, assets or management, shall not
approve any plan that may materially affect StarVI’s rights, obligations, assets or management,
shall not conduct any other activities that may materially affect StarVI’s rights, obligations,
assets or management, and
shall not exercise any his shareholder’s voting power in StarVI by any other means.

2.2 If Sina Company requests the Authorizer to provide special written authorization document to
Sina Company or any person appointed by Sina Company regarding to each specific matter, whether
such request made prior to or after such matter, the Authorizer must provide before the matter
occurs or provide in supplement after the matter occurs such written authorization document
according to Sina Company’s specific request.

2.3 In relation to any matters agreed upon by Sina Company by exercising shareholder’s voting
power, if necessary, Sina Company shall have the right to request the Authorizer to confirm by
signing on the relevant decisions of shareholder’s meeting or other similar written documents.

2.4 The Authorizer affirms that Sina Company shall have the right to submandate the other party to
exercise Sina Company’s any rights under this Agreement, and such submandate need not be approved
by the Authorizer, but shall be notified to the Authorizer in advance.

2.5 Sina Company shall report to the Authorizer the situation of authorized matters at the time he
deems proper. When this Agreement is terminated, Sina Company shall report the Authorizer the
results of authorized matters.

3. Term of Authorization

3.1 The term of authorization of shareholder’s voting power under this Agreement shall be from the
effective date of this Agreement to the date of StarVI’s dissolution.

3.2 After consultation, the Parties agree that the term of authorization may be adjusted at any
time in written form with specific regulations.

4. Remuneration of Authorization

Sina Company agrees that the Authorizer shall be exempt from paying any remuneration to Sina
Company for authorized matters according to this Agreement.

5. Declaration and Guarantee

5.1 The Parties of this Agreement hereby represents, undertakes and guarantees to each other as
follows:

	 	1)	 	possess appropriate competence and power to conclude this Agreement;
	 
	 	2)	 	have capability to fulfill obligations under this Agreement;
	 
	 	3)	 	No performance of obligations under this Agreement is in breach of any restriction in legal
documents that binds.

5.2 This Agreement, once being signed, shall constitute to both parties legal and effective
obligations that can be enforced according to the provisions of this Agreement.

6. Liability for Breaching

6.1 Any Party’s direct or indirect violation of any provision of this Agreement, or non-performance
or unduly and non-sufficient performance of his obligations under this Agreement shall constitute
breach of this Agreement. The party that obeys this Agreement (“the observant party”) shall have
the right to, by written notification, require the party in breach to rectify his nonperformance
and take sufficient, effective and duly measures to eliminate the results of breach, and compensate
the observant party’s damage caused by such breach.

6.2 After such breach occurs, if the observant party reasonably and objectively finds that such
breach has resulted in

2

 

impossibility or unfairness for it to perform obligations under this
Agreement, the observant party shall be entitled to suspend performing its relevant obligations
under this Agreement with notice in writing giving to the party in breach, till the party in breach
ceases nonperformance and takes sufficient, effective and duly measures to eliminate the results of
breach, and compensates the observant party’s damage caused by such breach.

6.3 The party in breach compensating the observant party’s damage shall include the observant
party’s direct economic loss, any anticipatable indirect loss and additional fee caused by breach.
Such addition fee shall include, but not limit to, attorney fee, litigation or arbitration fee,
finance expenditure and travel expense, and etc.

7. Force Majeure

7.1 “Force Majeure” shall mean any event out of the parties’ reasonable control, non-foreseeable,
or unavoidable even has been foreseen and such event hinder, affect or delay any party’s
performance of all or part of his obligations according to this Agreement. Such events include, but
not limit to, government’s acts, natural disasters, war or any other similar events.

7.2 The party suffers Force Majeure may suspend performing his relevant obligations under this
Agreement that are failed to be performed by the reason of Force Majeure till the effect of Force
Majeure is eliminated, and shall not bear any liability of breach of this Agreement. But such party
shall exert himself as much as possible to overcome such event and reduce its negative effects.

7.3 The suffering party from Force Majeure shall provide the other party with legal certifications
of such event issued by the notary office (or other proper agency) of the area where the event
occurs, which if fails, the other party may request the suffering party to bear any liability for
breach according to the provisions of this Agreement.

8. Effectiveness, Modification and Termination

8.1 This Agreement shall enter into force from the date of signing and sealing by Parties and
terminates when the term of authorization provided by this Agreement expires.

8.2 Prior to the expiration of this Agreement, if the Authorizer transfers all its stocks of StarVI
to Sina Company or other party agreed upon by Sina Company in written form in advance, the
Authorizer shall not be bound by any provisions of this Agreement from the date of completing stock
transfer. But the Authorizer shall notify the transferee in writing the existence of this Agreement
during the transfer, and the transferee’s full consent to be bound by this Agreement shall be the
precondition of transferring stock rights.

8.3 The Authorizer hereby irrevocably and permanently waives its right to rescind this Agreement at
any time.

8.4 The Parties may modify and supplement this Agreement in written form with consents from both.
Such modification and supplement signed by and between the Parties shall be part of this Agreement
with equal legal effect to this Agreement.

8.5 The Authorizer hereby agrees that Sina Company shall have the right to terminate this Agreement
from time to time without any reason by written notification rendered 10 days ahead and shall not
bear any liability for breach.

8.6 Earlier termination of this Agreement shall not impose any effect upon the Parties’ rights and
obligations occurred already according to this Agreement prior to the date of such termination.

9. Settlement of Dispute & Governing Law

9.1 The Parties shall settle with good faith all disputes regarding to interpretation and
enforcement of any provisions of this Agreement by consultation.

9.2 The disputes that are failed to be resolved by consultation shall be referred to China
International Economic and Trade Arbitration Committee for arbitration according to its existing
arbitration rules. The place of arbitration shall be in Beijing; and the language used in
arbitration shall be Chinese. The decision of arbitration shall be final and binding upon both
parties.

9.3 Laws and regulations of PRC shall be applied for conclusion, execution, interpretation and
settlement of disputes concerning this agreement.

3

 

10. Miscellaneous

10.1 This agreement is made into one original with two copies, one for each party, both with
equally legal effectiveness.

10.2 Titles and headlines contained in this Agreement are set for convenience to its readers only
and shall not impose any effect upon interpretation of any provisions of this Agreement.

10.3 If any provision of this Agreement is entirely or partially invalid or unenforceable for the
reason of violating laws or government regulations or other reasons, the affected part of such
provision shall be deemed as deleted. But deleting the affected part of such provision shall not
impose any effect upon the legal effect of other part of such provision and other provisions of
this Agreement. The Parties shall negotiate and conclude new provision to replace such invalid or
unenforceable provision.

10.4 Unless otherwise stipulated, non-exercise or deferred exercise by either party of any rights,
authority or privilege under this Agreement shall not be deemed as waiver of such rights, authority
or privilege. And independent or partial exercise of any rights, authority or privilege shall not
exclude the exercise of other rights, authority or privilege as well.

10.5 This Agreement constitutes the entire agreement concluded by the Parties regarding to the
subject matters of
cooperation program, and shall replace any previous or present, verbal or written agreements
concluded by the Parties regarding to the subject matters of cooperation program. If the Parties’
previous promises or previous agreements signed by the Parties regarding to any matters under this
Agreement do not comply with the provisions of this Agreement, this Agreement shall prevail.

10.6 The Parties shall additionally negotiate and confirm any issues not covered by this agreement.

	 	 	 	 	 	 	 	 	 
	Employee	 	 	 	SINA.com Technology (China) Co.Limited	 	 
	 
	 	 	 	 	 	 	 	 
	Signature:

	 	/s/
	 	Authorized Representative:
	 	/s/
	 	 
	 

	 	 
	 	 	 	 	 	 

4

 

Agreement on Authorization to Exercise Shareholder’s Voting Power

This agreement is concluded by and between the following parties on 31 (Day) 12 (Month) 2007 (Year) in Haidian District, Beijing:

Party A: SB Li (hereinafter referred to as “the Authorizer”)

Number of Identification Card:

Party B: SINA.com Technology (China) Co.Limited (hereinafter referred to as “Sina Company”)

Address: Room 1506, Ideal Int’l Mansion, No. 58, West Of North Forth Ring Rd., Haidian District,
Beijing, China.

WHEREAS:

	 	1.	 	The Authorizer holds 40% of stock rights of Beijing Star-Village Online Cultural Development
Co. Ltd. (hereinafter referred to as “StarVI”) on the date of signing of this Agreement; and
to hold above-mentioned stock rights, the Authorizer owns a debt of RMB 4,000,000 Yuan to Sina
Company;
	 
	 	2.	 	The Authorizer is willing to authorize Sina Company full powers to exercise his entire
shareholder’s voting power in his name in shareholders’ meetings of StarVI; SINA COMPANY is
willing to accept the above-mentioned authorization.

NOW, THEREFORE, after friendly consultation, the above parties conclude the following agreement
regarding to the matters of authorization of shareholder’s voting power:

1. Authorization of Voting Power

1.1The Authorizer hereby agrees to irrevocably authorize Sina Company, within the term of
authorization provided by this Agreement and in the Authorizer’s name, to exercise all
shareholder’s voting power enjoyed by the Authorizer according to law and StarVI’s articles of
association in StarVI’s shareholders’ meetings. Such shareholder’s voting power includes, but not
limits to, the following rights:

	1)	 	to decide StarVI’s management policy and investment plan;
	 
	2)	 	to elect and change StarVI’s directors, and decide the matters regarding to director’s
remuneration;
	 
	3)	 	to elect and change StarVI’s supervisors, and decide the matters regarding to supervisor’s
remuneration;
	 
	4)	 	to review and approve the reports of StarVI’s board of directors;
	 
	5)	 	to review and approve supervisor’s reports;
	 
	6)	 	to review and approve StarVI’s annual financial budget bill and the proposal of final
accounts;
	 
	7)	 	to review and approve StarVI’s profit distribution plan and the plan to make good deficits;
	 
	8)	 	to make decision on StarVI’s increasing or decreasing registered capital;
	 
	9)	 	to make decision on StarVI’s issue of corporate bonds;
	 
	10)	 	to make decision on StarVI’s shareholder transferring his subscribed capital to the persons
other than StarVI’s shareholders;
	 
	11)	 	to make decision on StarVI’s merger, separation, change of company’s form, dissolution and
liquidation, etc.;
	 
	12)	 	to make decision on changing StarVI’s business scope;
	 
	13)	 	to revise StarVI’s articles of association;
	 
	14)	 	to decide to change the contents or nature of StarVI’s business;
	 
	15)	 	to decide to make a loan to any third party or incur any debts in StarVI’s name;
	 
	16)	 	to decide to sell StarVI’s any assets or rights to any third party, including but not limited
to intellectual property;
	 
	17)	 	to decide to set up any security rights against StarVI’s any assets (including both tangible
and intangible assets) whatsoever such security is for;
	 
	18)	 	to decide to assign the contracts signed by StarVI to any third party; and

1

 

	19)	 	to decide any other rights that may materially affect StarVI’s rights, obligations, assets or
management matters.

1.2 Sina Company agrees to accept the authorization contained in previous article made by the
Authorizer and shall exercise such shareholder’s voting power in the Authorizer’s name according to
the provisions of this Agreement.

2. Exercising of Voting Power

2.1 Within the term of authorization provided by this Agreement, the Authorizer’s entire
shareholder’s voting power in StarVI shall be authorized to Sina Company to exercise. Without Sina
Company’s prior written consent, the Authorizer shall not, in the term of authorization, make any
decision that may materially affect StarVI’s rights, obligations, assets or management, shall not
approve any plan that may materially affect StarVI’s rights, obligations, assets or management,
shall not conduct any other activities that may materially affect StarVI’s rights, obligations,
assets or management, and shall not exercise any his shareholder’s voting power in StarVI by any
other means.

2.2 If Sina Company requests the Authorizer to provide special written authorization document to
Sina Company or any person appointed by Sina Company regarding to each specific matter, whether
such request made prior to or after such matter, the Authorizer must provide before the matter
occurs or provide in supplement after the matter occurs such written authorization document
according to Sina Company’s specific request.

2.3 In relation to any matters agreed upon by Sina Company by exercising shareholder’s voting
power, if necessary, Sina Company shall have the right to request the Authorizer to confirm by
signing on the relevant decisions of shareholder’s meeting or other similar written documents.

2.4 The Authorizer affirms that Sina Company shall have the right to submandate the other party to
exercise Sina Company’s any rights under this Agreement, and such submandate need not be approved
by the Authorizer, but shall be notified to the Authorizer in advance.

2.5 Sina Company shall report to the Authorizer the situation of authorized matters at the time he
deems proper. When this Agreement is terminated, Sina Company shall report the Authorizer the
results of authorized matters.

3. Term of Authorization

3.1 The term of authorization of shareholder’s voting power under this Agreement shall be from the
effective date of this Agreement to the date of StarVI’s dissolution.

3.2 After consultation, the Parties agree that the term of authorization may be adjusted at any
time in written form with specific regulations.

4. Remuneration of Authorization

Sina Company agrees that the Authorizer shall be exempt from paying any remuneration to Sina
Company for authorized matters according to this Agreement.

5. Declaration and Guarantee

5.1 The Parties of this Agreement hereby represents, undertakes and guarantees to each other as
follows:

	 	1)	 	possess appropriate competence and power to conclude this Agreement;
	 
	 	2)	 	have capability to fulfill obligations under this Agreement;
	 
	 	3)	 	No performance of obligations under this Agreement is in breach of any restriction in legal
documents that binds.

5.2 This Agreement, once being signed, shall constitute to both parties legal and effective
obligations that can be enforced according to the provisions of this Agreement.

6. Liability for Breaching

6.1 Any Party’s direct or indirect violation of any provision of this Agreement, or non-performance
or unduly and non-sufficient performance of his obligations under this Agreement shall constitute
breach of this Agreement. The party that obeys this Agreement (“the observant party”) shall have
the right to, by written notification, require the party in breach to rectify his nonperformance
and take sufficient, effective and duly measures to eliminate the results of breach, and compensate
the observant party’s damage caused by such breach.

6.2 After such breach occurs, if the observant party reasonably and objectively finds that such
breach has resulted in

2

 

impossibility or unfairness for it to perform obligations under this Agreement, the observant party
shall be entitled to suspend performing its relevant obligations under this Agreement with notice
in writing giving to the party in breach, till the party in breach ceases nonperformance and takes
sufficient, effective and duly measures to eliminate the results of breach, and compensates the
observant party’s damage caused by such breach.

6.3 The party in breach compensating the observant party’s damage shall include the observant
party’s direct economic loss, any anticipatable indirect loss and additional fee caused by breach.
Such addition fee shall include, but not limit to, attorney fee, litigation or arbitration fee,
finance expenditure and travel expense, and etc.

7. Force Majeure

7.1 “Force Majeure” shall mean any event out of the parties’ reasonable control, non-foreseeable,
or unavoidable even has been foreseen and such event hinder, affect or delay any party’s
performance of all or part of his obligations according to this Agreement. Such events include, but
not limit to, government’s acts, natural disasters, war or any other similar events.

7.2 The party suffers Force Majeure may suspend performing his relevant obligations under this
Agreement that are failed to be performed by the reason of Force Majeure till the effect of Force
Majeure is eliminated, and shall not bear any liability of breach of this Agreement. But such party
shall exert himself as much as possible to overcome such event and reduce its negative effects.

7.3 The suffering party from Force Majeure shall provide the other party with legal certifications
of such event issued by the notary office (or other proper agency) of the area where the event
occurs, which if fails, the other party may request the suffering party to bear any liability for
breach according to the provisions of this Agreement.

8. Effectiveness, Modification and Termination

8.1 This Agreement shall enter into force from the date of signing and sealing by Parties and
terminates when the term of authorization provided by this Agreement expires.

8.2 Prior to the expiration of this Agreement, if the Authorizer transfers all its stocks of StarVI
to Sina Company or other party agreed upon by Sina Company in written form in advance, the
Authorizer shall not be bound by any provisions of this Agreement from the date of completing stock
transfer. But the Authorizer shall notify the transferee in writing the existence of this Agreement
during the transfer, and the transferee’s full consent to be bound by this Agreement shall be the
precondition of transferring stock rights.

8.3 The Authorizer hereby irrevocably and permanently waives its right to rescind this Agreement at
any time.

8.4 The Parties may modify and supplement this Agreement in written form with consents from both.
Such modification and supplement signed by and between the Parties shall be part of this Agreement
with equal legal effect to this Agreement.

8.5 The Authorizer hereby agrees that Sina Company shall have the right to terminate this Agreement
from time to time without any reason by written notification rendered 10 days ahead and shall not
bear any liability for breach.

8.6 Earlier termination of this Agreement shall not impose any effect upon the Parties’ rights and
obligations occurred already according to this Agreement prior to the date of such termination.

9. Settlement of Dispute & Governing Law

9.1 The Parties shall settle with good faith all disputes regarding to interpretation and
enforcement of any provisions of this Agreement by consultation.

9.2 The disputes that are failed to be resolved by consultation shall be referred to China
International Economic and Trade Arbitration Committee for arbitration according to its existing
arbitration rules. The place of arbitration shall be in Beijing; and the language used in
arbitration shall be Chinese. The decision of arbitration shall be final and binding upon both
parties.

9.3 Laws and regulations of PRC shall be applied for conclusion, execution, interpretation and
settlement of disputes concerning this agreement.

10. Miscellaneous

10.1 This agreement is made into one original with two copies, one for each party, both with
equally legal effectiveness.

3

 

10.2 Titles and headlines contained in this Agreement are set for convenience to its readers only
and shall not impose any effect upon interpretation of any provisions of this Agreement.

10.3 If any provision of this Agreement is entirely or partially invalid or unenforceable for the
reason of violating laws or government regulations or other reasons, the affected part of such
provision shall be deemed as deleted. But deleting the affected part of such provision shall not
impose any effect upon the legal effect of other part of such provision and other provisions of
this Agreement. The Parties shall negotiate and conclude new provision to replace such invalid or
unenforceable provision.

10.4 Unless otherwise stipulated, non-exercise or deferred exercise by either party of any rights,
authority or privilege under this Agreement shall not be deemed as waiver of such rights, authority
or privilege. And independent or partial exercise of any rights, authority or privilege shall not
exclude the exercise of other rights, authority or privilege as well.

10.5 This Agreement constitutes the entire agreement concluded by the Parties regarding to the
subject matters of cooperation program, and shall replace any previous or present, verbal or
written agreements concluded by the Parties regarding to the subject matters of cooperation
program. If the Parties’ previous promises or previous agreements signed by the Parties regarding
to any matters under this Agreement do not comply with the provisions of this Agreement, this
Agreement shall prevail.

10.6 The Parties shall additionally negotiate and confirm any issues not covered by this agreement.

 
	 	 	 	 	 	 	 	 	 
	Employee	 	 	 	SINA.com Technology (China) Co. Limited	 	 
	 
	 	 	 	 	 	 	 	 
	Signature:

	 	/s/
	 	Authorized Representative:
	 	/s/
	 	 
	 

	 	 
	 	 	 	 	 	 

4

 

Agreement on Authorization to Exercise Shareholder’s Voting Power

This agreement is concluded by and between the following parties on 18 (Day) 08 (Month) 2007 (Year) in Haidian District, Beijing:

Party A: HX Yan (hereinafter referred to as “the Authorizer”)

Number of Identification Card:

Party B: SINA.com Technology (China) Co.Limited (hereinafter referred to as “Sina Company”)

Address: Room 1506, Ideal Int’l Mansion, No. 58, West Of North Forth Ring Rd., Haidian District,
Beijing, China.

WHEREAS:

	 	1.	 	The Authorizer holds 40% of stock rights of Guangzhou Media Message Technologies Co., Ltd.
(hereinafter referred to as “Xunlong”) on the date of signing of this Agreement; and to hold
above-mentioned stock rights, the Authorizer owns a debt of RMB 4,000,000 Yuan to Sina
Company;
	 
	 	2.	 	The Authorizer is willing to authorize Sina Company full powers to exercise his entire
shareholder’s voting power in his name in shareholders’ meetings of Xunlong; SINA COMPANY is
willing to accept the above-mentioned authorization.

NOW, THEREFORE, after friendly consultation, the above parties conclude the following agreement
regarding to the matters of authorization of shareholder’s voting power:

1. Authorization of Voting Power

1.1The Authorizer hereby agrees to irrevocably authorize Sina Company, within the term of
authorization provided by this Agreement and in the Authorizer’s name, to exercise all
shareholder’s voting power enjoyed by the Authorizer according to law and Xunlong’s articles of
association in Xunlong’s shareholders’ meetings. Such shareholder’s voting power includes, but not
limits to, the following rights:

	 	1)	 	to decide Xunlong’s management policy and investment plan;
	 
	 	2)	 	to elect and change Xunlong’s directors, and decide the matters regarding to director’s
remuneration;
	 
	 	3)	 	to elect and change Xunlong’s supervisors, and decide the matters regarding to supervisor’s
remuneration;
	 
	 	4)	 	to review and approve the reports of Xunlong’s board of directors;
	 
	 	5)	 	to review and approve supervisor’s reports;
	 
	 	6)	 	to review and approve Xunlong’s annual financial budget bill and the proposal of final
accounts;
	 
	 	7)	 	to review and approve Xunlong’s profit distribution plan and the plan to make good deficits;
	 
	 	8)	 	to make decision on Xunlong’s increasing or decreasing registered capital;
	 
	 	9)	 	to make decision on Xunlong’s issue of corporate bonds;
	 
	 	10)	 	to make decision on Xunlong’s shareholder transferring his subscribed capital to the persons
other than Xunlong’s shareholders;
	 
	 	11)	 	to make decision on Xunlong’s merger, separation, change of company’s form, dissolution and
liquidation, etc.;
	 
	 	12)	 	to make decision on changing Xunlong’s business scope;
	 
	 	13)	 	to revise Xunlong’s articles of association;
	 
	 	14)	 	to decide to change the contents or nature of Xunlong’s business;
	 
	 	15)	 	to decide to make a loan to any third party or incur any debts in Xunlong’s name;
	 
	 	16)	 	to decide to sell Xunlong’s any assets or rights to any third party, including but not
limited to intellectual property;
	 
	 	17)	 	to decide to set up any security rights against Xunlong’s any assets (including both tangible
and intangible assets) whatsoever such security is for;
	 
	 	18)	 	to decide to assign the contracts signed by Xunlong to any third party; and

1

 

	 	19)	 	to decide any other rights that may materially affect Xunlong’s rights, obligations, assets
or management matters.

1.2 Sina Company agrees to accept the authorization contained in previous article made by the
Authorizer and shall exercise such shareholder’s voting power in the Authorizer’s name according to
the provisions of this Agreement.

2. Exercising of Voting Power

2.1 Within the term of authorization provided by this Agreement, the Authorizer’s entire
shareholder’s voting power in Xunlong shall be authorized to Sina Company to exercise. Without Sina
Company’s prior written consent, the Authorizer shall not, in the term of authorization, make any
decision that may materially affect Xunlong’s rights, obligations, assets or management, shall not
approve any plan that may materially affect Xunlong’s rights, obligations, assets or management,
shall not conduct any other activities that may materially affect Xunlong’s rights, obligations,
assets or management, and shall not exercise any his shareholder’s voting power in Xunlong by any
other means.

2.2 If Sina Company requests the Authorizer to provide special written authorization document to
Sina Company or any person appointed by Sina Company regarding to each specific matter, whether
such request made prior to or after such matter, the Authorizer must provide before the matter
occurs or provide in supplement after the matter occurs such written authorization document
according to Sina Company’s specific request.

2.3 In relation to any matters agreed upon by Sina Company by exercising shareholder’s voting
power, if necessary, Sina Company shall have the right to request the Authorizer to confirm by
signing on the relevant decisions of shareholder’s meeting or other similar written documents.

2.4 The Authorizer affirms that Sina Company shall have the right to submandate the other party to
exercise Sina Company’s any rights under this Agreement, and such submandate need not be approved
by the Authorizer, but shall be notified to the Authorizer in advance.

2.5 Sina Company shall report to the Authorizer the situation of authorized matters at the time he
deems proper. When this Agreement is terminated, Sina Company shall report the Authorizer the
results of authorized matters.

3. Term of Authorization

3.1 The term of authorization of shareholder’s voting power under this Agreement shall be from the
effective date of this Agreement to the date of Xunlong’s dissolution.

3.2 After consultation, the Parties agree that the term of authorization may be adjusted at any
time in written form with specific regulations.

4. Remuneration of Authorization

Sina Company agrees that the Authorizer shall be exempt from paying any remuneration to Sina
Company for authorized matters according to this Agreement.

5. Declaration and Guarantee

5.1 The Parties of this Agreement hereby represents, undertakes and guarantees to each other as
follows:

	 	1)	 	possess appropriate competence and power to conclude this Agreement;
	 
	 	2)	 	have capability to fulfill obligations under this Agreement;
	 
	 	3)	 	No performance of obligations under this Agreement is in breach of any restriction in legal
documents that binds.

5.2 This Agreement, once being signed, shall constitute to both parties legal and effective
obligations that can be enforced according to the provisions of this Agreement.

6. Liability for Breaching

6.1 Any Party’s direct or indirect violation of any provision of this Agreement, or non-performance
or unduly and non-sufficient performance of his obligations under this Agreement shall constitute
breach of this Agreement. The party that obeys this Agreement (“the observant party”) shall have
the right to, by written notification, require the party in breach to rectify his nonperformance
and take sufficient, effective and duly measures to eliminate the results of breach, and compensate
the observant party’s damage caused by such breach.

6.2 After such breach occurs, if the observant party reasonably and objectively finds that such
breach has resulted in

2

 

impossibility or unfairness for it to perform obligations under this Agreement, the observant party
shall be entitled to suspend performing its relevant obligations under this Agreement with notice
in writing giving to the party in breach, till the party in breach ceases nonperformance and takes
sufficient, effective and duly measures to eliminate the results of breach, and compensates the
observant party’s damage caused by such breach.

6.3 The party in breach compensating the observant party’s damage shall include the observant
party’s direct economic loss, any anticipatable indirect loss and additional fee caused by breach.
Such addition fee shall include, but not limit to, attorney fee, litigation or arbitration fee,
finance expenditure and travel expense, and etc.

7. Force Majeure

7.1 “Force Majeure” shall mean any event out of the parties’ reasonable control, non-foreseeable,
or unavoidable even has been foreseen and such event hinder, affect or delay any party’s
performance of all or part of his obligations according to this Agreement. Such events include, but
not limit to, government’s acts, natural disasters, war or any other similar events.

7.2 The party suffers Force Majeure may suspend performing his relevant obligations under this
Agreement that are failed to be performed by the reason of Force Majeure till the effect of Force
Majeure is eliminated, and shall not bear any liability of breach of this Agreement. But such party
shall exert himself as much as possible to overcome such event and reduce its negative effects.

7.3 The suffering party from Force Majeure shall provide the other party with legal certifications
of such event issued by the notary office (or other proper agency) of the area where the event
occurs, which if fails, the other party may request the suffering party to bear any liability for
breach according to the provisions of this Agreement.

8. Effectiveness, Modification and Termination

8.1 This Agreement shall enter into force from the date of signing and sealing by Parties and
terminates when the term of authorization provided by this Agreement expires.

8.2 Prior to the expiration of this Agreement, if the Authorizer transfers all its stocks of
Xunlong to Sina Company or other party agreed upon by Sina Company in written form in advance, the
Authorizer shall not be bound by any provisions of this Agreement from the date of completing stock
transfer. But the Authorizer shall notify the transferee in writing the existence of this Agreement
during the transfer, and the transferee’s full consent to be bound by this Agreement shall be the
precondition of transferring stock rights.

8.3 The Authorizer hereby irrevocably and permanently waives its right to rescind this Agreement at
any time.

8.4 The Parties may modify and supplement this Agreement in written form with consents from both.
Such modification and supplement signed by and between the Parties shall be part of this Agreement
with equal legal effect to this Agreement.

8.5 The Authorizer hereby agrees that Sina Company shall have the right to terminate this Agreement
from time to time without any reason by written notification rendered 10 days ahead and shall not
bear any liability for breach.

8.6 Earlier termination of this Agreement shall not impose any effect upon the Parties’ rights and
obligations occurred already according to this Agreement prior to the date of such termination.

9. Settlement of Dispute & Governing Law

9.1 The Parties shall settle with good faith all disputes regarding to interpretation and
enforcement of any provisions of this Agreement by consultation.

9.2 The disputes that are failed to be resolved by consultation shall be referred to China
International Economic and Trade Arbitration Committee for arbitration according to its existing
arbitration rules. The place of arbitration shall be in Beijing; and the language used in
arbitration shall be Chinese. The decision of arbitration shall be final and binding upon both
parties.

9.3 Laws and regulations of PRC shall be applied for conclusion, execution, interpretation and
settlement of disputes concerning this agreement.

10. Miscellaneous

10.1 This agreement is made into one original with two copies, one for each party, both with
equally legal effectiveness.

3

 

10.2 Titles and headlines contained in this Agreement are set for convenience to its readers only
and shall not impose any effect upon interpretation of any provisions of this Agreement.

10.3 If any provision of this Agreement is entirely or partially invalid or unenforceable for the
reason of violating laws or government regulations or other reasons, the affected part of such
provision shall be deemed as deleted. But deleting the affected part of such provision shall not
impose any effect upon the legal effect of other part of such provision and other provisions of
this Agreement. The Parties shall negotiate and conclude new provision to replace such invalid or
unenforceable provision.

10.4 Unless otherwise stipulated, non-exercise or deferred exercise by either party of any rights,
authority or privilege under this Agreement shall not be deemed as waiver of such rights, authority
or privilege. And independent or partial exercise of any rights, authority or privilege shall not
exclude the exercise of other rights, authority or privilege as well.

10.5 This Agreement constitutes the entire agreement concluded by the Parties regarding to the
subject matters of cooperation program, and shall replace any previous or present, verbal or
written agreements concluded by the Parties regarding to the subject matters of cooperation
program. If the Parties’ previous promises or previous agreements signed by the Parties regarding
to any matters under this Agreement do not comply with the provisions of this Agreement, this
Agreement shall prevail.

10.6 The Parties shall additionally negotiate and confirm any issues not covered by this agreement.

 
	 	 	 	 	 	 	 	 	 
	Employee	 	 	 	SINA.com Technology (China) Co.Limited	 	 
	 
	 	 	 	 	 	 	 	 
	Signature:

	 	/s/
	 	Authorized Representative:
	 	/s/
	 	 
	 

	 	 
	 	 	 	 	 	 

4

 

Agreement on Authorization to Exercise Shareholder’s Voting Power

This agreement is concluded by and between the following parties on 18 (Day) 08 (Month) 2007 (Year) in Haidian District, Beijing:

Party A: B Luo (hereinafter referred to as “the Authorizer”)

Number of Identification Card:

Party B: SINA.com Technology (China) Co.Limited (hereinafter referred to as “Sina Company”)

Address: Room 1506, Ideal Int’l Mansion, No. 58, West Of North Forth Ring Rd., Haidian District,
Beijing, China.

WHEREAS:

	 	1.	 	The Authorizer holds 30% of stock rights of Guangzhou Media Message Technologies Co., Ltd.
(hereinafter referred to as “Xunlong”) on the date of signing of this Agreement; and to hold
above-mentioned stock rights, the Authorizer owns a debt of RMB 3,000,000 Yuan to Sina
Company;
	 
	 	2.	 	The Authorizer is willing to authorize Sina Company full powers to exercise his entire
shareholder’s voting power in his name in shareholders’ meetings of Xunlong; SINA COMPANY is
willing to accept the above-mentioned authorization.

NOW, THEREFORE, after friendly consultation, the above parties conclude the following agreement
regarding to the matters of authorization of shareholder’s voting power:

1. Authorization of Voting Power

1.1The Authorizer hereby agrees to irrevocably authorize Sina Company, within the term of
authorization provided by this Agreement and in the Authorizer’s name, to exercise all
shareholder’s voting power enjoyed by the Authorizer according to law and Xunlong’s articles of
association in Xunlong’s shareholders’ meetings. Such shareholder’s voting power includes, but not
limits to, the following rights:

	 	1)	 	to decide Xunlong’s management policy and investment plan;
	 
	 	2)	 	to elect and change Xunlong’s directors, and decide the matters regarding to director’s
remuneration;
	 
	 	3)	 	to elect and change Xunlong’s supervisors, and decide the matters regarding to supervisor’s
remuneration;
	 
	 	4)	 	to review and approve the reports of Xunlong’s board of directors;
	 
	 	5)	 	to review and approve supervisor’s reports;
	 
	 	6)	 	to review and approve Xunlong’s annual financial budget bill and the proposal of final
accounts;
	 
	 	7)	 	to review and approve Xunlong’s profit distribution plan and the plan to make good deficits;
	 
	 	8)	 	to make decision on Xunlong’s increasing or decreasing registered capital;
	 
	 	9)	 	to make decision on Xunlong’s issue of corporate bonds;
	 
	 	10)	 	to make decision on Xunlong’s shareholder transferring his subscribed capital to the persons
other than Xunlong’s shareholders;
	 
	 	11)	 	to make decision on Xunlong’s merger, separation, change of company’s form, dissolution and
liquidation, etc.;
	 
	 	12)	 	to make decision on changing Xunlong’s business scope;
	 
	 	13)	 	to revise Xunlong’s articles of association;
	 
	 	14)	 	to decide to change the contents or nature of Xunlong’s business;
	 
	 	15)	 	to decide to make a loan to any third party or incur any debts in Xunlong’s name;
	 
	 	16)	 	to decide to sell Xunlong’s any assets or rights to any third party, including but not
limited to intellectual property;
	 
	 	17)	 	to decide to set up any security rights against Xunlong’s any assets (including both tangible
and intangible assets) whatsoever such security is for;
	 
	 	18)	 	to decide to assign the contracts signed by Xunlong to any third party; and

1

 

	 	19)	 	to decide any other rights that may materially affect Xunlong’s rights, obligations, assets
or management matters.

1.2 Sina Company agrees to accept the authorization contained in previous article made by the
Authorizer and shall exercise such shareholder’s voting power in the Authorizer’s name according to
the provisions of this Agreement.

2. Exercising of Voting Power

2.1 Within the term of authorization provided by this Agreement, the Authorizer’s entire
shareholder’s voting power in Xunlong shall be authorized to Sina Company to exercise. Without Sina
Company’s prior written consent, the Authorizer shall not, in the term of authorization, make any
decision that may materially affect Xunlong’s rights, obligations, assets or management, shall not
approve any plan that may materially affect Xunlong’s rights, obligations, assets or management,
shall not conduct any other activities that may materially affect Xunlong’s rights, obligations,
assets or management, and shall not exercise any his shareholder’s voting power in Xunlong by any
other means.

2.2 If Sina Company requests the Authorizer to provide special written authorization document to
Sina Company or any person appointed by Sina Company regarding to each specific matter, whether
such request made prior to or after such matter, the Authorizer must provide before the matter
occurs or provide in supplement after the matter occurs such written authorization document
according to Sina Company’s specific request.

2.3 In relation to any matters agreed upon by Sina Company by exercising shareholder’s voting
power, if necessary, Sina Company shall have the right to request the Authorizer to confirm by
signing on the relevant decisions of shareholder’s meeting or other similar written documents.

2.4 The Authorizer affirms that Sina Company shall have the right to submandate the other party to
exercise Sina Company’s any rights under this Agreement, and such submandate need not be approved
by the Authorizer, but shall be notified to the Authorizer in advance.

2.5 Sina Company shall report to the Authorizer the situation of authorized matters at the time he
deems proper. When this Agreement is terminated, Sina Company shall report the Authorizer the
results of authorized matters.

3. Term of Authorization

3.1 The term of authorization of shareholder’s voting power under this Agreement shall be from the
effective date of this Agreement to the date of Xunlong’s dissolution.

3.2 After consultation, the Parties agree that the term of authorization may be adjusted at any
time in written form with specific regulations.

4. Remuneration of Authorization

Sina Company agrees that the Authorizer shall be exempt from paying any remuneration to Sina
Company for authorized matters according to this Agreement.

5. Declaration and Guarantee

5.1 The Parties of this Agreement hereby represents, undertakes and guarantees to each other as
follows:

	 	1)	 	possess appropriate competence and power to conclude this Agreement;
	 
	 	2)	 	have capability to fulfill obligations under this Agreement;
	 
	 	3)	 	No performance of obligations under this Agreement is in breach of any restriction in legal
documents that binds.

5.2 This Agreement, once being signed, shall constitute to both parties legal and effective
obligations that can be enforced according to the provisions of this Agreement.

6. Liability for Breaching

6.1 Any Party’s direct or indirect violation of any provision of this Agreement, or non-performance
or unduly and non-sufficient performance of his obligations under this Agreement shall constitute
breach of this Agreement. The party that obeys this Agreement (“the observant party”) shall have
the right to, by written notification, require the party in breach to rectify his nonperformance
and take sufficient, effective and duly measures to eliminate the results of breach, and compensate
the observant party’s damage caused by such breach.

6.2 After such breach occurs, if the observant party reasonably and objectively finds that such
breach has resulted in

2

 

impossibility or unfairness for it to perform obligations under this Agreement, the observant party
shall be entitled to suspend performing its relevant obligations under this Agreement with notice
in writing giving to the party in breach, till the party in breach ceases nonperformance and takes
sufficient, effective and duly measures to eliminate the results of breach, and compensates the
observant party’s damage caused by such breach.

6.3 The party in breach compensating the observant party’s damage shall include the observant
party’s direct economic loss, any anticipatable indirect loss and additional fee caused by breach.
Such addition fee shall include, but not limit to, attorney fee, litigation or arbitration fee,
finance expenditure and travel expense, and etc.

7. Force Majeure

7.1 “Force Majeure” shall mean any event out of the parties’ reasonable control, non-foreseeable,
or unavoidable even has been foreseen and such event hinder, affect or delay any party’s
performance of all or part of his obligations according to this Agreement. Such events include, but
not limit to, government’s acts, natural disasters, war or any other similar events.

7.2 The party suffers Force Majeure may suspend performing his relevant obligations under this
Agreement that are failed to be performed by the reason of Force Majeure till the effect of Force
Majeure is eliminated, and shall not bear any liability of breach of this Agreement. But such party
shall exert himself as much as possible to overcome such event and reduce its negative effects.

7.3 The suffering party from Force Majeure shall provide the other party with legal certifications
of such event issued by the notary office (or other proper agency) of the area where the event
occurs, which if fails, the other party may request the suffering party to bear any liability for
breach according to the provisions of this Agreement.

8. Effectiveness, Modification and Termination

8.1 This Agreement shall enter into force from the date of signing and sealing by Parties and
terminates when the term of authorization provided by this Agreement expires.

8.2 Prior to the expiration of this Agreement, if the Authorizer transfers all its stocks of
Xunlong to Sina Company or other party agreed upon by Sina Company in written form in advance, the
Authorizer shall not be bound by any provisions of this Agreement from the date of completing stock
transfer. But the Authorizer shall notify the transferee in writing the existence of this Agreement
during the transfer, and the transferee’s full consent to be bound by this Agreement shall be the
precondition of transferring stock rights.

8.3 The Authorizer hereby irrevocably and permanently waives its right to rescind this Agreement at
any time.

8.4 The Parties may modify and supplement this Agreement in written form with consents from both.
Such modification and supplement signed by and between the Parties shall be part of this Agreement
with equal legal effect to this Agreement.

8.5 The Authorizer hereby agrees that Sina Company shall have the right to terminate this Agreement
from time to time without any reason by written notification rendered 10 days ahead and shall not
bear any liability for breach.

8.6 Earlier termination of this Agreement shall not impose any effect upon the Parties’ rights and
obligations occurred already according to this Agreement prior to the date of such termination.

9. Settlement of Dispute & Governing Law

9.1 The Parties shall settle with good faith all disputes regarding to interpretation and
enforcement of any provisions of this Agreement by consultation.

9.2 The disputes that are failed to be resolved by consultation shall be referred to China
International Economic and Trade Arbitration Committee for arbitration according to its existing
arbitration rules. The place of arbitration shall be in Beijing; and the language used in
arbitration shall be Chinese. The decision of arbitration shall be final and binding upon both
parties.

9.3 Laws and regulations of PRC shall be applied for conclusion, execution, interpretation and
settlement of disputes concerning this agreement.

10. Miscellaneous

10.1 This agreement is made into one original with two copies, one for each party, both with
equally legal effectiveness.

3

 

10.2 Titles and headlines contained in this Agreement are set for convenience to its readers only
and shall not impose any effect upon interpretation of any provisions of this Agreement.

10.3 If any provision of this Agreement is entirely or partially invalid or unenforceable for the
reason of violating laws or government regulations or other reasons, the affected part of such
provision shall be deemed as deleted. But deleting the affected part of such provision shall not
impose any effect upon the legal effect of other part of such provision and other provisions of
this Agreement. The Parties shall negotiate and conclude new provision to replace such invalid or
unenforceable provision.

10.4 Unless otherwise stipulated, non-exercise or deferred exercise by either party of any rights,
authority or privilege under this Agreement shall not be deemed as waiver of such rights, authority
or privilege. And independent or partial exercise of any rights, authority or privilege shall not
exclude the exercise of other rights, authority or privilege as well.

10.5 This Agreement constitutes the entire agreement concluded by the Parties regarding to the
subject matters of cooperation program, and shall replace any previous or present, verbal or
written agreements concluded by the Parties regarding to the subject matters of cooperation
program. If the Parties’ previous promises or previous agreements signed by the Parties regarding
to any matters under this Agreement do not comply with the provisions of this Agreement, this
Agreement shall prevail.

10.6 The Parties shall additionally negotiate and confirm any issues not covered by this agreement.

 
	 	 	 	 	 	 	 	 	 
	Employee	 	 	 	SINA.com Technology (China) Co.Limited	 	 
	 
	 	 	 	 	 	 	 	 
	Signature:

	 	/s/
	 	Authorized Representative:
	 	/s/
	 	 
	 

	 	 
	 	 	 	 	 	 

4

 

Agreement on Authorization to Exercise Shareholder’s Voting Power

This agreement is concluded by and between the following parties on 18 (Day)
08 (Month) 2007 (Year) in Haidian District, Beijing:

Party A: B Lin (hereinafter referred to as “the Authorizer”)

Number of Identification Card:

Party B: SINA.com Technology (China) Co.Limited (hereinafter referred to as “Sina Company”)

Address: Room 1506, Ideal Int’l Mansion, No. 58, West Of North Forth Ring Rd., Haidian District,
Beijing, China.

WHEREAS:

	 	1.	 	The Authorizer holds 30% of stock rights of Guangzhou Media Message Technologies Co., Ltd.
(hereinafter referred to as “Xunlong”) on the date of signing of this Agreement; and to hold
above-mentioned stock rights, the Authorizer owns a debt of RMB 3,000,000 Yuan to Sina
Company;
	 
	 	2.	 	The Authorizer is willing to authorize Sina Company full powers to exercise his entire
shareholder’s voting power in his name in shareholders’ meetings of Xunlong; SINA COMPANY is
willing to accept the above-mentioned authorization.

NOW, THEREFORE, after friendly consultation, the above parties conclude the following agreement
regarding to the matters of authorization of shareholder’s voting power:

1. Authorization of Voting Power

1.1The Authorizer hereby agrees to irrevocably authorize Sina Company, within the term of
authorization provided by this Agreement and in the Authorizer’s name, to exercise all
shareholder’s voting power enjoyed by the Authorizer according to law and Xunlong’s articles of
association in Xunlong’s shareholders’ meetings. Such shareholder’s voting power includes, but not
limits to, the following rights:

	 	1)	 	to decide Xunlong’s management policy and investment plan;
	 
	 	2)	 	to elect and change Xunlong’s directors, and decide the matters regarding to director’s
remuneration;
	 
	 	3)	 	to elect and change Xunlong’s supervisors, and decide the matters regarding to supervisor’s
remuneration;
	 
	 	4)	 	to review and approve the reports of Xunlong’s board of directors;
	 
	 	5)	 	to review and approve supervisor’s reports;
	 
	 	6)	 	to review and approve Xunlong’s annual financial budget bill and the proposal of final
accounts;
	 
	 	7)	 	to review and approve Xunlong’s profit distribution plan and the plan to make good deficits;
	 
	 	8)	 	to make decision on Xunlong’s increasing or decreasing registered capital;
	 
	 	9)	 	to make decision on Xunlong’s issue of corporate bonds;
	 
	 	10)	 	to make decision on Xunlong’s shareholder transferring his subscribed capital to the persons
other than Xunlong’s shareholders;
	 
	 	11)	 	to make decision on Xunlong’s merger, separation, change of company’s form, dissolution and
liquidation, etc.;
	 
	 	12)	 	to make decision on changing Xunlong’s business scope;
	 
	 	13)	 	to revise Xunlong’s articles of association;
	 
	 	14)	 	to decide to change the contents or nature of Xunlong’s business;
	 
	 	15)	 	to decide to make a loan to any third party or incur any debts in Xunlong’s name;
	 
	 	16)	 	to decide to sell Xunlong’s any assets or rights to any third party, including but not
limited to intellectual property;
	 
	 	17)	 	to decide to set up any security rights against Xunlong’s any assets (including both tangible
and intangible assets) whatsoever such security is for;
	 
	 	18)	 	to decide to assign the contracts signed by Xunlong to any third party; and

1

 

	 	19)	 	to decide any other rights that may materially affect Xunlong’s rights, obligations, assets
or management matters.

1.2 Sina Company agrees to accept the authorization contained in previous article made by the
Authorizer and shall exercise such shareholder’s voting power in the Authorizer’s name according to
the provisions of this Agreement.

2. Exercising of Voting Power

2.1 Within the term of authorization provided by this Agreement, the Authorizer’s entire
shareholder’s voting power in Xunlong shall be authorized to Sina Company to exercise. Without Sina
Company’s prior written consent, the Authorizer shall not, in the term of authorization, make any
decision that may materially affect Xunlong’s rights, obligations, assets or management, shall not
approve any plan that may materially affect Xunlong’s rights, obligations, assets or management,
shall not conduct any other activities that may materially affect Xunlong’s rights, obligations,
assets or management, and
shall not exercise any his shareholder’s voting power in Xunlong by any other means.

2.2 If Sina Company requests the Authorizer to provide special written authorization document to
Sina Company or any person appointed by Sina Company regarding to each specific matter, whether
such request made prior to or after such matter, the Authorizer must provide before the matter
occurs or provide in supplement after the matter occurs such written authorization document
according to Sina Company’s specific request.

2.3 In relation to any matters agreed upon by Sina Company by exercising shareholder’s voting
power, if necessary, Sina Company shall have the right to request the Authorizer to confirm by
signing on the relevant decisions of shareholder’s meeting or other similar written documents.

2.4 The Authorizer affirms that Sina Company shall have the right to submandate the other party to
exercise Sina Company’s any rights under this Agreement, and such submandate need not be approved
by the Authorizer, but shall be notified to the Authorizer in advance.

2.5 Sina Company shall report to the Authorizer the situation of authorized matters at the time he
deems proper. When this Agreement is terminated, Sina Company shall report the Authorizer the
results of authorized matters.

3. Term of Authorization

3.1 The term of authorization of shareholder’s voting power under this Agreement shall be from the
effective date of this Agreement to the date of Xunlong’s dissolution.

3.2 After consultation, the Parties agree that the term of authorization may be adjusted at any
time in written form with specific regulations.

4. Remuneration of Authorization

Sina Company agrees that the Authorizer shall be exempt from paying any remuneration to Sina
Company for authorized matters according to this Agreement.

5. Declaration and Guarantee

5.1 The Parties of this Agreement hereby represents, undertakes and guarantees to each other as
follows:

	 	1)	 	possess appropriate competence and power to conclude this Agreement;
	 
	 	2)	 	have capability to fulfill obligations under this Agreement;
	 
	 	3)	 	No performance of obligations under this Agreement is in breach of any restriction in legal
documents that binds.

5.2 This Agreement, once being signed, shall constitute to both parties legal and effective
obligations that can be enforced according to the provisions of this Agreement.

6. Liability for Breaching

6.1 Any Party’s direct or indirect violation of any provision of this Agreement, or non-performance
or unduly and non-sufficient performance of his obligations under this Agreement shall constitute
breach of this Agreement. The party that obeys this Agreement (“the observant party”) shall have
the right to, by written notification, require the party in breach to rectify his nonperformance
and take sufficient, effective and duly measures to eliminate the results of breach, and compensate
the observant party’s damage caused by such breach.

6.2 After such breach occurs, if the observant party reasonably and objectively finds that such
breach has resulted in

2

 

impossibility or unfairness for it to perform obligations under this
Agreement, the observant party shall be entitled to suspend performing its relevant obligations
under this Agreement with notice in writing giving to the party in breach, till the party in breach
ceases nonperformance and takes sufficient, effective and duly measures to eliminate the results of
breach, and compensates the observant party’s damage caused by such breach.

6.3 The party in breach compensating the observant party’s damage shall include the observant
party’s direct economic loss, any anticipatable indirect loss and additional fee caused by breach.
Such addition fee shall include, but not limit to, attorney fee, litigation or arbitration fee,
finance expenditure and travel expense, and etc.

7. Force Majeure

7.1 “Force Majeure” shall mean any event out of the parties’ reasonable control, non-foreseeable,
or unavoidable even has been foreseen and such event hinder, affect or delay any party’s
performance of all or part of his obligations according to this Agreement. Such events include, but
not limit to, government’s acts, natural disasters, war or any other similar events.

7.2 The party suffers Force Majeure may suspend performing his relevant obligations under this
Agreement that are failed to be performed by the reason of Force Majeure till the effect of Force
Majeure is eliminated, and shall not bear any liability of breach of this Agreement. But such party
shall exert himself as much as possible to overcome such event and reduce its negative effects.

7.3 The suffering party from Force Majeure shall provide the other party with legal certifications
of such event issued by the notary office (or other proper agency) of the area where the event
occurs, which if fails, the other party may request the suffering party to bear any liability for
breach according to the provisions of this Agreement.

8. Effectiveness, Modification and Termination

8.1 This Agreement shall enter into force from the date of signing and sealing by Parties and
terminates when the term of authorization provided by this Agreement expires.

8.2 Prior to the expiration of this Agreement, if the Authorizer transfers all its stocks of
Xunlong to Sina Company or other party agreed upon by Sina Company in written form in advance, the
Authorizer shall not be bound by any provisions of this Agreement from the date of completing stock
transfer. But the Authorizer shall notify the transferee in writing the existence of this Agreement
during the transfer, and the transferee’s full consent to be bound by this Agreement shall be the
precondition of transferring stock rights.

8.3 The Authorizer hereby irrevocably and permanently waives its right to rescind this Agreement at
any time.

8.4 The Parties may modify and supplement this Agreement in written form with consents from both.
Such modification and supplement signed by and between the Parties shall be part of this Agreement
with equal legal effect to this Agreement.

8.5 The Authorizer hereby agrees that Sina Company shall have the right to terminate this Agreement
from time to time without any reason by written notification rendered 10 days ahead and shall not
bear any liability for breach.

8.6 Earlier termination of this Agreement shall not impose any effect upon the Parties’ rights and
obligations occurred already according to this Agreement prior to the date of such termination.

9. Settlement of Dispute & Governing Law

9.1 The Parties shall settle with good faith all disputes regarding to interpretation and
enforcement of any provisions of this Agreement by consultation.

9.2 The disputes that are failed to be resolved by consultation shall be referred to China
International Economic and Trade Arbitration Committee for arbitration according to its existing
arbitration rules. The place of arbitration shall be in Beijing; and the language used in
arbitration shall be Chinese. The decision of arbitration shall be final and binding upon both
parties.

9.3 Laws and regulations of PRC shall be applied for conclusion, execution, interpretation and
settlement of disputes concerning this agreement.

10. Miscellaneous

10.1 This agreement is made into one original with two copies, one for each party, both with
equally legal effectiveness.

3

 

10.2 Titles and headlines contained in this Agreement are set for convenience to its readers only
and shall not impose any effect upon interpretation of any provisions of this Agreement.

10.3 If any provision of this Agreement is entirely or partially invalid or unenforceable for the
reason of violating laws or government regulations or other reasons, the affected part of such
provision shall be deemed as deleted. But deleting the affected part of such provision shall not
impose any effect upon the legal effect of other part of such provision and other provisions of
this Agreement. The Parties shall negotiate and conclude new provision to replace such invalid or
unenforceable provision.

10.4 Unless otherwise stipulated, non-exercise or deferred exercise by either party of any rights,
authority or privilege under this Agreement shall not be deemed as waiver of such rights, authority
or privilege. And independent or partial exercise of any rights, authority or privilege shall not
exclude the exercise of other rights, authority or privilege as well.

10.5 This Agreement constitutes the entire agreement concluded by the Parties regarding to the
subject matters of cooperation program, and shall replace any previous or present, verbal or
written agreements concluded by the Parties regarding to the subject matters of cooperation
program. If the Parties’ previous promises or previous agreements signed by
the Parties regarding to any matters under this Agreement do not comply with the provisions of this
Agreement, this Agreement shall prevail.

10.6 The Parties shall additionally negotiate and confirm any issues not covered by this agreement.

	 	 	 	 	 	 	 	 	 
	Employee	 	 	 	SINA.com Technology (China) Co.Limited	 	 
	 
	 	 	 	 	 	 	 	 
	Signature:

	 	/s/
	 	Authorized Representative:
	 	/s/
	 	 
	 

	 	 
	 	 	 	 	 	 

4

 

Agreement on Authorization to Exercise Shareholder’s Voting Power

This agreement is concluded by and between the following parties on 18 (Day)
08 (Month) 2007 (Year) in Haidian District, Beijing:

Party A: B Wang (hereinafter referred to as “the Authorizer”)

Number of Identification Card:

Party B: SINA.com Technology (China) Co.Limited (hereinafter referred to as “Sina Company”)

Address: Room 1506, Ideal Int’l Mansion, No. 58, West Of North Forth Ring Rd., Haidian District,
Beijing, China.

WHEREAS:

	 	1.	 	The Authorizer holds 40% of stock rights of Shenzhen Wangxing Technology Co., Ltd.
(hereinafter referred to as “Wangxing”) on the date of signing of this Agreement; and to hold
above-mentioned stock rights, the Authorizer owns a debt of RMB 4,000,000 Yuan to Sina
Company;
	 
	 	2.	 	The Authorizer is willing to authorize Sina Company full powers to exercise his entire
shareholder’s voting power in his name in shareholders’ meetings of Wangxing; SINA COMPANY is
willing to accept the above-mentioned authorization.

NOW, THEREFORE, after friendly consultation, the above parties conclude the following agreement
regarding to the matters of authorization of shareholder’s voting power:

1. Authorization of Voting Power

1.1 The Authorizer hereby agrees to irrevocably authorize Sina Company, within the term of
authorization provided by this Agreement and in the Authorizer’s name, to exercise all
shareholder’s voting power enjoyed by the Authorizer according to law and Wangxing’s articles of
association in Wangxing’s shareholders’ meetings. Such shareholder’s voting power includes, but not
limits to, the following rights:

	 	1)	 	to decide Wangxing’s management policy and investment plan;
	 
	 	2)	 	to elect and change Wangxing’s directors, and decide the matters regarding to director’s
remuneration;
	 
	 	3)	 	to elect and change Wangxing’s supervisors, and decide the matters regarding to supervisor’s
remuneration;
	 
	 	4)	 	to review and approve the reports of Wangxing’s board of directors;
	 
	 	5)	 	to review and approve supervisor’s reports;
	 
	 	6)	 	to review and approve Wangxing’s annual financial budget bill and the proposal of final
accounts;
	 
	 	7)	 	to review and approve Wangxing’s profit distribution plan and the plan to make good deficits;
	 
	 	8)	 	to make decision on Wangxing’s increasing or decreasing registered capital;
	 
	 	9)	 	to make decision on Wangxing’s issue of corporate bonds;
	 
	 	10)	 	to make decision on Wangxing’s shareholder transferring his subscribed capital to the persons
other than Wangxing’s shareholders;
	 
	 	11)	 	to make decision on Wangxing’s merger, separation, change of company’s form, dissolution and
liquidation, etc.;
	 
	 	12)	 	to make decision on changing Wangxing’s business scope;
	 
	 	13)	 	to revise Wangxing’s articles of association;
	 
	 	14)	 	to decide to change the contents or nature of Wangxing’s business;
	 
	 	15)	 	to decide to make a loan to any third party or incur any debts in Wangxing’s name;
	 
	 	16)	 	to decide to sell Wangxing’s any assets or rights to any third party, including but not
limited to intellectual property;
	 
	 	17)	 	to decide to set up any security rights against Wangxing’s any assets (including both
tangible and intangible assets) whatsoever such security is for;
	 
	 	18)	 	to decide to assign the contracts signed by Wangxing to any third party; and
	 
	 	19)	 	to decide any other rights that may materially affect Wangxing’s rights, obligations, assets
or management matters.

1

 

1.2 Sina Company agrees to accept the authorization contained in previous article made by the
Authorizer and shall exercise such shareholder’s voting power in the Authorizer’s name according to
the provisions of this Agreement.

2. Exercising of Voting Power

2.1 Within the term of authorization provided by this Agreement, the Authorizer’s entire
shareholder’s voting power in Wangxing shall be authorized to Sina Company to exercise. Without
Sina Company’s prior written consent, the Authorizer shall not, in the term of authorization, make
any decision that may materially affect Wangxing’s rights, obligations, assets or management, shall
not approve any plan that may materially affect Wangxing’s rights, obligations, assets or
management, shall not conduct any other activities that may materially affect Wangxing’s rights,
obligations, assets or management, and shall not exercise any his shareholder’s voting power in
Wangxing by any other means.

2.2 If Sina Company requests the Authorizer to provide special written authorization document to
Sina Company or any person appointed by Sina Company regarding to each specific matter, whether
such request made prior to or after such matter, the Authorizer must provide before the matter
occurs or provide in supplement after the matter occurs such written authorization document
according to Sina Company’s specific request.

2.3 In relation to any matters agreed upon by Sina Company by exercising shareholder’s voting
power, if necessary, Sina Company shall have the right to request the Authorizer to confirm by
signing on the relevant decisions of shareholder’s meeting or other similar written documents.

2.4 The Authorizer affirms that Sina Company shall have the right to submandate the other party to
exercise Sina Company’s any rights under this Agreement, and such submandate need not be approved
by the Authorizer, but shall be notified to the Authorizer in advance.

2.5 Sina Company shall report to the Authorizer the situation of authorized matters at the time he
deems proper. When this Agreement is terminated, Sina Company shall report the Authorizer the
results of authorized matters.

3. Term of Authorization

3.1 The term of authorization of shareholder’s voting power under this Agreement shall be from the
effective date of this Agreement to the date of Wangxing’s dissolution.

3.2 After consultation, the Parties agree that the term of authorization may be adjusted at any
time in written form with specific regulations.

4. Remuneration of Authorization

Sina Company agrees that the Authorizer shall be exempt from paying any remuneration to Sina
Company for authorized matters according to this Agreement.

5. Declaration and Guarantee

5.1 The Parties of this Agreement hereby represents, undertakes and guarantees to each other as
follows:

	 	1)	 	possess appropriate competence and power to conclude this Agreement;
	 
	 	2)	 	have capability to fulfill obligations under this Agreement;
	 
	 	3)	 	No performance of obligations under this Agreement is in breach of any restriction in legal
documents that binds.

5.2 This Agreement, once being signed, shall constitute to both parties legal and effective
obligations that can be enforced according to the provisions of this Agreement.

6. Liability for Breaching

6.1 Any Party’s direct or indirect violation of any provision of this Agreement, or non-performance
or unduly and non-sufficient performance of his obligations under this Agreement shall constitute
breach of this Agreement. The party that obeys this Agreement (“the observant party”) shall have
the right to, by written notification, require the party in breach to rectify his nonperformance
and take sufficient, effective and duly measures to eliminate the results of breach, and compensate
the observant party’s damage caused by such breach.

6.2 After such breach occurs, if the observant party reasonably and objectively finds that such
breach has resulted in impossibility or unfairness for it to perform obligations under this
Agreement, the observant party shall be entitled to suspend

2

 

performing its relevant obligations
under this Agreement with notice in writing giving to the party in breach, till the party in breach
ceases nonperformance and takes sufficient, effective and duly measures to eliminate the results of
breach, and compensates the observant party’s damage caused by such breach.

6.3 The party in breach compensating the observant party’s damage shall include the observant
party’s direct economic loss, any anticipatable indirect loss and additional fee caused by breach.
Such addition fee shall include, but not limit to, attorney fee, litigation or arbitration fee,
finance expenditure and travel expense, and etc.

7. Force Majeure

7.1 “Force Majeure” shall mean any event out of the parties’ reasonable control, non-foreseeable,
or unavoidable even has been foreseen and such event hinder, affect or delay any party’s
performance of all or part of his obligations according to this Agreement. Such events include, but
not limit to, government’s acts, natural disasters, war or any other similar events.

7.2 The party suffers Force Majeure may suspend performing his relevant obligations under this
Agreement that are failed to be performed by the reason of Force Majeure till the effect of Force
Majeure is eliminated, and shall not bear any liability of breach of this Agreement. But such party
shall exert himself as much as possible to overcome such event and reduce its negative effects.

7.3 The suffering party from Force Majeure shall provide the other party with legal certifications
of such event issued by the notary office (or other proper agency) of the area where the event
occurs, which if fails, the other party may request the suffering party to bear any liability for
breach according to the provisions of this Agreement.

8. Effectiveness, Modification and Termination

8.1 This Agreement shall enter into force from the date of signing and sealing by Parties and
terminates when the term of authorization provided by this Agreement expires.

8.2 Prior to the expiration of this Agreement, if the Authorizer transfers all its stocks of
Wangxing to Sina Company or other party agreed upon by Sina Company in written form in advance, the
Authorizer shall not be bound by any provisions of this Agreement from the date of completing stock
transfer. But the Authorizer shall notify the transferee in writing the existence of this Agreement
during the transfer, and the transferee’s full consent to be bound by this Agreement shall be the
precondition of transferring stock rights.

8.3 The Authorizer hereby irrevocably and permanently waives its right to rescind this Agreement at
any time.

8.4 The Parties may modify and supplement this Agreement in written form with consents from both.
Such modification and supplement signed by and between the Parties shall be part of this Agreement
with equal legal effect to this Agreement.

8.5 The Authorizer hereby agrees that Sina Company shall have the right to terminate this Agreement
from time to time without any reason by written notification rendered 10 days ahead and shall not
bear any liability for breach.

8.6 Earlier termination of this Agreement shall not impose any effect upon the Parties’ rights and
obligations occurred already according to this Agreement prior to the date of such termination.

9. Settlement of Dispute & Governing Law

9.1 The Parties shall settle with good faith all disputes regarding to interpretation and
enforcement of any provisions of this Agreement by consultation.

9.2 The disputes that are failed to be resolved by consultation shall be referred to China
International Economic and Trade Arbitration Committee for arbitration according to its existing
arbitration rules. The place of arbitration shall be in Beijing; and the language used in
arbitration shall be Chinese. The decision of arbitration shall be final and binding upon both
parties.

9.3 Laws and regulations of PRC shall be applied for conclusion, execution, interpretation and
settlement of disputes concerning this agreement.

10. Miscellaneous

10.1 This agreement is made into one original with two copies, one for each party, both with
equally legal effectiveness.

10.2 Titles and headlines contained in this Agreement are set for convenience to its readers only
and shall not impose any effect upon interpretation of any provisions of this Agreement.

3

 

10.3 If any provision of this Agreement is entirely or partially invalid or unenforceable for the
reason of violating laws or government regulations or other reasons, the affected part of such
provision shall be deemed as deleted. But deleting the affected part of such provision shall not
impose any effect upon the legal effect of other part of such provision and other provisions of
this Agreement. The Parties shall negotiate and conclude new provision to replace such invalid or
unenforceable provision.

10.4 Unless otherwise stipulated, non-exercise or deferred exercise by either party of any rights,
authority or privilege under this Agreement shall not be deemed as waiver of such rights, authority
or privilege. And independent or partial exercise of any rights, authority or privilege shall not
exclude the exercise of other rights, authority or privilege as well.

10.5 This Agreement constitutes the entire agreement concluded by the Parties regarding to the
subject matters of cooperation program, and shall replace any previous or present, verbal or
written agreements concluded by the Parties regarding to the subject matters of cooperation
program. If the Parties’ previous promises or previous agreements signed by the Parties regarding
to any matters under this Agreement do not comply with the provisions of this Agreement, this
Agreement shall prevail.

10.6 The Parties shall additionally negotiate and confirm any issues not covered by this agreement.

	 	 	 	 	 	 	 	 	 
	Employee	 	 	 	SINA.com Technology
(China) Co.Limited	 	 
	 
	 	 	 	 	 	 	 	 
	Signature:

	 	/s/
	 	Authorized Representative:
	 	/s/
	 	 
	 

	 	 
	 	 	 	 	 	 

4

 

Agreement on Authorization to Exercise Shareholder’s Voting Power

This agreement is concluded by and between the following parties on 18 (Day) 08 (Month) 2007 (Year)
in Haidian District, Beijing:

Party A: SL Zhang (hereinafter referred to as “the Authorizer”)

Number of Identification Card:

Party B: SINA.com Technology (China) Co.Limited (hereinafter referred to as “Sina Company”)

Address: Room 1506, Ideal Int’l Mansion, No. 58, West Of North Forth Ring Rd., Haidian District,
Beijing, China.

WHEREAS:

	1.	 	The Authorizer holds 30% of stock rights of Shenzhen Wangxing Technology Co., Ltd.
(hereinafter referred to as “Wangxing”) on the date of signing of this Agreement; and to hold
above-mentioned stock rights, the Authorizer owns a debt of RMB 3,000,000 Yuan to Sina
Company;
	 
	2.	 	The Authorizer is willing to authorize Sina Company full powers to exercise his entire
shareholder’s voting power in his name in shareholders’ meetings of Wangxing; SINA COMPANY is
willing to accept the above-mentioned authorization.

NOW, THEREFORE, after friendly consultation, the above parties conclude the following agreement
regarding to the matters of authorization of shareholder’s voting power:

1. Authorization of Voting Power

1.1The Authorizer hereby agrees to irrevocably authorize Sina Company, within the term of
authorization provided by this Agreement and in the Authorizer’s name, to exercise all
shareholder’s voting power enjoyed by the Authorizer according to law and Wangxing’s articles of
association in Wangxing’s shareholders’ meetings. Such shareholder’s voting power includes, but not
limits to, the following rights:

	 	1)	 	to decide Wangxing’s management policy and investment plan;
	 
	 	2)	 	to elect and change Wangxing’s directors, and decide the matters regarding to director’s
remuneration;
	 
	 	3)	 	to elect and change Wangxing’s supervisors, and decide the matters regarding to supervisor’s
remuneration;
	 
	 	4)	 	to review and approve the reports of Wangxing’s board of directors;
	 
	 	5)	 	to review and approve supervisor’s reports;
	 
	 	6)	 	to review and approve Wangxing’s annual financial budget bill and the proposal of final
accounts;
	 
	 	7)	 	to review and approve Wangxing’s profit distribution plan and the plan to make good deficits;
	 
	 	8)	 	to make decision on Wangxing’s increasing or decreasing registered capital;
	 
	 	9)	 	to make decision on Wangxing’s issue of corporate bonds;
	 
	 	10)	 	to make decision on Wangxing’s shareholder transferring his subscribed capital to the persons
other than Wangxing’s shareholders;
	 
	 	11)	 	to make decision on Wangxing’s merger, separation, change of company’s form, dissolution and
liquidation, etc.;
	 
	 	12)	 	to make decision on changing Wangxing’s business scope;
	 
	 	13)	 	to revise Wangxing’s articles of association;
	 
	 	14)	 	to decide to change the contents or nature of Wangxing’s business;
	 
	 	15)	 	to decide to make a loan to any third party or incur any debts in Wangxing’s name;
	 
	 	16)	 	to decide to sell Wangxing’s any assets or rights to any third party, including but not
limited to intellectual property;
	 
	 	17)	 	to decide to set up any security rights against Wangxing’s any assets (including both
tangible and intangible assets) whatsoever such security is for;
	 
	 	18)	 	to decide to assign the contracts signed by Wangxing to any third party; and

1

 

	 	19)	 	to decide any other rights that may materially affect Wangxing’s rights, obligations, assets
or management matters.

1.2 Sina Company agrees to accept the authorization contained in previous article made by the
Authorizer and shall exercise such shareholder’s voting power in the Authorizer’s name according to
the provisions of this Agreement.

2. Exercising of Voting Power

2.1 Within the term of authorization provided by this Agreement, the Authorizer’s entire
shareholder’s voting power in Wangxing shall be authorized to Sina Company to exercise. Without
Sina Company’s prior written consent, the Authorizer shall not, in the term of authorization, make
any decision that may materially affect Wangxing’s rights, obligations, assets or management, shall
not approve any plan that may materially affect Wangxing’s rights, obligations, assets or
management, shall not conduct any other activities that may materially affect Wangxing’s rights,
obligations, assets or management, and shall not exercise any his shareholder’s voting power in Wangxing by any other means.

2.2 If Sina Company requests the Authorizer to provide special written authorization document to
Sina Company or any person appointed by Sina Company regarding to each specific matter, whether
such request made prior to or after such matter, the Authorizer must provide before the matter
occurs or provide in supplement after the matter occurs such written authorization document
according to Sina Company’s specific request.

2.3 In relation to any matters agreed upon by Sina Company by exercising shareholder’s voting
power, if necessary, Sina Company shall have the right to request the Authorizer to confirm by
signing on the relevant decisions of shareholder’s meeting or other similar written documents.

2.4 The Authorizer affirms that Sina Company shall have the right to submandate the other party to
exercise Sina Company’s any rights under this Agreement, and such submandate need not be approved
by the Authorizer, but shall be notified to the Authorizer in advance.

2.5 Sina Company shall report to the Authorizer the situation of authorized matters at the time he
deems proper. When this Agreement is terminated, Sina Company shall report the Authorizer the
results of authorized matters.

3. Term of Authorization

3.1 The term of authorization of shareholder’s voting power under this Agreement shall be from the
effective date of this Agreement to the date of Wangxing’s dissolution.

3.2 After consultation, the Parties agree that the term of authorization may be adjusted at any
time in written form with specific regulations.

4. Remuneration of Authorization

Sina Company agrees that the Authorizer shall be exempt from paying any remuneration to Sina
Company for authorized matters according to this Agreement.

5. Declaration and Guarantee

5.1 The Parties of this Agreement hereby represents, undertakes and guarantees to each other as
follows:

	 	1)	 	possess appropriate competence and power to conclude this Agreement;
	 
	 	2)	 	have capability to fulfill obligations under this Agreement;
	 
	 	3)	 	No performance of obligations under this Agreement is in breach of any restriction in legal
documents that binds.

5.2 This Agreement, once being signed, shall constitute to both parties legal and effective
obligations that can be enforced according to the provisions of this Agreement.

6. Liability for Breaching

6.1 Any Party’s direct or indirect violation of any provision of this Agreement, or non-performance
or unduly and non-sufficient performance of his obligations under this Agreement shall constitute
breach of this Agreement. The party that obeys this Agreement (“the observant party”) shall have
the right to, by written notification, require the party in breach to rectify his nonperformance
and take sufficient, effective and duly measures to eliminate the results of breach, and compensate
the observant party’s damage caused by such breach.

6.2 After such breach occurs, if the observant party reasonably and objectively finds that such
breach has resulted in

2

 

impossibility or unfairness for it to perform obligations under this
Agreement, the observant party shall be entitled to suspend performing its relevant obligations
under this Agreement with notice in writing giving to the party in breach, till the party in breach
ceases nonperformance and takes sufficient, effective and duly measures to eliminate the results of
breach, and compensates the observant party’s damage caused by such breach.

6.3 The party in breach compensating the observant party’s damage shall include the observant
party’s direct economic loss, any anticipatable indirect loss and additional fee caused by breach.
Such addition fee shall include, but not limit to, attorney fee, litigation or arbitration fee,
finance expenditure and travel expense, and etc.

7. Force Majeure

7.1 “Force Majeure” shall mean any event out of the parties’ reasonable control, non-foreseeable,
or unavoidable even has been foreseen and such event hinder, affect or delay any party’s
performance of all or part of his obligations according to this Agreement. Such events include, but
not limit to, government’s acts, natural disasters, war or any other similar events.

7.2 The party suffers Force Majeure may suspend performing his relevant obligations under this
Agreement that are failed to be performed by the reason of Force Majeure till the effect of Force
Majeure is eliminated, and shall not bear any liability of breach of this Agreement. But such party
shall exert himself as much as possible to overcome such event and reduce its negative effects.

7.3 The suffering party from Force Majeure shall provide the other party with legal certifications
of such event issued by the notary office (or other proper agency) of the area where the event
occurs, which if fails, the other party may request the suffering party to bear any liability for
breach according to the provisions of this Agreement.

8. Effectiveness, Modification and Termination

8.1 This Agreement shall enter into force from the date of signing and sealing by Parties and
terminates when the term of authorization provided by this Agreement expires.

8.2 Prior to the expiration of this Agreement, if the Authorizer transfers all its stocks of
Wangxing to Sina Company or other party agreed upon by Sina Company in written form in advance, the
Authorizer shall not be bound by any provisions of this Agreement from the date of completing stock
transfer. But the Authorizer shall notify the transferee in writing the existence of this Agreement
during the transfer, and the transferee’s full consent to be bound by this Agreement shall be the
precondition of transferring stock rights.

8.3 The Authorizer hereby irrevocably and permanently waives its right to rescind this Agreement at
any time.

8.4 The Parties may modify and supplement this Agreement in written form with consents from both.
Such modification and supplement signed by and between the Parties shall be part of this Agreement
with equal legal effect to this Agreement.

8.5 The Authorizer hereby agrees that Sina Company shall have the right to terminate this Agreement
from time to time without any reason by written notification rendered 10 days ahead and shall not
bear any liability for breach.

8.6 Earlier termination of this Agreement shall not impose any effect upon the Parties’ rights and
obligations occurred already according to this Agreement prior to the date of such termination.

9. Settlement of Dispute & Governing Law

9.1 The Parties shall settle with good faith all disputes regarding to interpretation and
enforcement of any provisions of this Agreement by consultation.

9.2 The disputes that are failed to be resolved by consultation shall be referred to China
International Economic and Trade Arbitration Committee for arbitration according to its existing
arbitration rules. The place of arbitration shall be in Beijing; and the language used in
arbitration shall be Chinese. The decision of arbitration shall be final and binding upon both
parties.

9.3 Laws and regulations of PRC shall be applied for conclusion, execution, interpretation and
settlement of disputes concerning this agreement.

10. Miscellaneous

10.1 This agreement is made into one original with two copies, one for each party, both with
equally legal effectiveness.

3

 

10.2 Titles and headlines contained in this Agreement are set for convenience to its readers only
and shall not impose any effect upon interpretation of any provisions of this Agreement.

10.3 If any provision of this Agreement is entirely or partially invalid or unenforceable for the
reason of violating laws or government regulations or other reasons, the affected part of such
provision shall be deemed as deleted. But deleting the affected part of such provision shall not
impose any effect upon the legal effect of other part of such provision and other provisions of
this Agreement. The Parties shall negotiate and conclude new provision to replace such invalid or
unenforceable provision.

10.4 Unless otherwise stipulated, non-exercise or deferred exercise by either party of any rights,
authority or privilege under this Agreement shall not be deemed as waiver of such rights, authority
or privilege. And independent or partial exercise of any rights, authority or privilege shall not
exclude the exercise of other rights, authority or privilege as well.

10.5 This Agreement constitutes the entire agreement concluded by the Parties regarding to the
subject matters of cooperation program, and shall replace any previous or present, verbal or
written agreements concluded by the Parties regarding to the subject matters of cooperation
program. If the Parties’ previous promises or previous agreements signed by
the Parties regarding to any matters under this Agreement do not comply with the provisions of this
Agreement, this Agreement shall prevail.

10.6 The Parties shall additionally negotiate and confirm any issues not covered by this agreement.

	 	 	 	 	 	 	 	 	 
	Employee	 	 	 	SINA.com Technology (China) Co.Limited	 	 
	 
	 	 	 	 	 	 	 	 
	Signature:

	 	/s/
	 	Authorized Representative:
	 	/s/
	 	 
	 

	 	 
	 	 	 	 	 	 

4

 

Agreement on Authorization to Exercise Shareholder’s Voting Power

This agreement is concluded by and between the following parties on 18 (Day) 08 (Month) 2007 (Year)
in Haidian District, Beijing:

Party A: W Li (hereinafter referred to as “the Authorizer”)

Number of Identification Card:

Party B: SINA.com Technology (China) Co.Limited (hereinafter referred to as “Sina Company”)

Address: Room 1506, Ideal Int’l Mansion, No. 58, West Of North Forth Ring Rd., Haidian District,
Beijing, China.

WHEREAS:

	1.	 	The Authorizer holds 30% of stock rights of Shenzhen Wangxing Technology Co., Ltd.
(hereinafter referred to as “Wangxing”) on the date of signing of this Agreement; and to hold
above-mentioned stock rights, the Authorizer owns a debt of RMB 3,000,000 Yuan to Sina
Company;
	 
	2.	 	The Authorizer is willing to authorize Sina Company full powers to exercise his entire
shareholder’s voting power in his name in shareholders’ meetings of Wangxing; SINA COMPANY is
willing to accept the above-mentioned authorization.

NOW, THEREFORE, after friendly consultation, the above parties conclude the following agreement
regarding to the matters of authorization of shareholder’s voting power:

1. Authorization of Voting Power

1.1The Authorizer hereby agrees to irrevocably authorize Sina Company, within the term of
authorization provided by this Agreement and in the Authorizer’s name, to exercise all
shareholder’s voting power enjoyed by the Authorizer according to law and Wangxing’s articles of
association in Wangxing’s shareholders’ meetings. Such shareholder’s voting power includes, but not
limits to, the following rights:

	 	1)	 	to decide Wangxing’s management policy and investment plan;
	 
	 	2)	 	to elect and change Wangxing’s directors, and decide the matters regarding to director’s
remuneration;
	 
	 	3)	 	to elect and change Wangxing’s supervisors, and decide the matters regarding to supervisor’s
remuneration;
	 
	 	4)	 	to review and approve the reports of Wangxing’s board of directors;
	 
	 	5)	 	to review and approve supervisor’s reports;
	 
	 	6)	 	to review and approve Wangxing’s annual financial budget bill and the proposal of final
accounts;
	 
	 	7)	 	to review and approve Wangxing’s profit distribution plan and the plan to make good deficits;
	 
	 	8)	 	to make decision on Wangxing’s increasing or decreasing registered capital;
	 
	 	9)	 	to make decision on Wangxing’s issue of corporate bonds;
	 
	 	10)	 	to make decision on Wangxing’s shareholder transferring his subscribed capital to the persons
other than Wangxing’s shareholders;
	 
	 	11)	 	to make decision on Wangxing’s merger, separation, change of company’s form, dissolution and
liquidation, etc.;
	 
	 	12)	 	to make decision on changing Wangxing’s business scope;
	 
	 	13)	 	to revise Wangxing’s articles of association;
	 
	 	14)	 	to decide to change the contents or nature of Wangxing’s business;
	 
	 	15)	 	to decide to make a loan to any third party or incur any debts in Wangxing’s name;
	 
	 	16)	 	to decide to sell Wangxing’s any assets or rights to any third party, including but not
limited to intellectual property;
	 
	 	17)	 	to decide to set up any security rights against Wangxing’s any assets (including both
tangible and intangible assets) whatsoever such security is for;
	 
	 	18)	 	to decide to assign the contracts signed by Wangxing to any third party; and

1

 

	 	19)	 	to decide any other rights that may materially affect Wangxing’s rights, obligations, assets
or management matters.

1.2 Sina Company agrees to accept the authorization contained in previous article made by the
Authorizer and shall exercise such shareholder’s voting power in the Authorizer’s name according to
the provisions of this Agreement.

2. Exercising of Voting Power

2.1 Within the term of authorization provided by this Agreement, the Authorizer’s entire
shareholder’s voting power in Wangxing shall be authorized to Sina Company to exercise. Without
Sina Company’s prior written consent, the Authorizer shall not, in the term of authorization, make
any decision that may materially affect Wangxing’s rights, obligations, assets or management, shall
not approve any plan that may materially affect Wangxing’s rights, obligations, assets or
management, shall not conduct any other activities that may materially affect Wangxing’s rights,
obligations, assets or management, and shall not exercise any his shareholder’s voting power in Wangxing by any other means.

2.2 If Sina Company requests the Authorizer to provide special written authorization document to
Sina Company or any person appointed by Sina Company regarding to each specific matter, whether
such request made prior to or after such matter, the Authorizer must provide before the matter
occurs or provide in supplement after the matter occurs such written authorization document
according to Sina Company’s specific request.

2.3 In relation to any matters agreed upon by Sina Company by exercising shareholder’s voting
power, if necessary, Sina Company shall have the right to request the Authorizer to confirm by
signing on the relevant decisions of shareholder’s meeting or other similar written documents.

2.4 The Authorizer affirms that Sina Company shall have the right to submandate the other party to
exercise Sina Company’s any rights under this Agreement, and such submandate need not be approved
by the Authorizer, but shall be notified to the Authorizer in advance.

2.5 Sina Company shall report to the Authorizer the situation of authorized matters at the time he
deems proper. When this Agreement is terminated, Sina Company shall report the Authorizer the
results of authorized matters.

3. Term of Authorization

3.1 The term of authorization of shareholder’s voting power under this Agreement shall be from the
effective date of this Agreement to the date of Wangxing’s dissolution.

3.2 After consultation, the Parties agree that the term of authorization may be adjusted at any
time in written form with specific regulations.

4. Remuneration of Authorization

Sina Company agrees that the Authorizer shall be exempt from paying any remuneration to Sina
Company for authorized matters according to this Agreement.

5. Declaration and Guarantee

5.1 The Parties of this Agreement hereby represents, undertakes and guarantees to each other as
follows:

	 	1)	 	possess appropriate competence and power to conclude this Agreement;
	 
	 	2)	 	have capability to fulfill obligations under this Agreement;
	 
	 	3)	 	No performance of obligations under this Agreement is in breach of any restriction in legal
documents that binds.

5.2 This Agreement, once being signed, shall constitute to both parties legal and effective
obligations that can be enforced according to the provisions of this Agreement.

6. Liability for Breaching

6.1 Any Party’s direct or indirect violation of any provision of this Agreement, or non-performance
or unduly and non-sufficient performance of his obligations under this Agreement shall constitute
breach of this Agreement. The party that obeys this Agreement (“the observant party”) shall have
the right to, by written notification, require the party in breach to rectify his nonperformance
and take sufficient, effective and duly measures to eliminate the results of breach, and compensate
the observant party’s damage caused by such breach.

6.2 After such breach occurs, if the observant party reasonably and objectively finds that such
breach has resulted in

2

 

impossibility or unfairness for it to perform obligations under this
Agreement, the observant party shall be entitled to suspend performing its relevant obligations
under this Agreement with notice in writing giving to the party in breach, till the party in breach
ceases nonperformance and takes sufficient, effective and duly measures to eliminate the results of
breach, and compensates the observant party’s damage caused by such breach.

6.3 The party in breach compensating the observant party’s damage shall include the observant
party’s direct economic loss, any anticipatable indirect loss and additional fee caused by breach.
Such addition fee shall include, but not limit to, attorney fee, litigation or arbitration fee,
finance expenditure and travel expense, and etc.

7. Force Majeure

7.1 “Force Majeure” shall mean any event out of the parties’ reasonable control, non-foreseeable,
or unavoidable even has been foreseen and such event hinder, affect or delay any party’s
performance of all or part of his obligations according to this Agreement. Such events include, but
not limit to, government’s acts, natural disasters, war or any other similar events.

7.2 The party suffers Force Majeure may suspend performing his relevant obligations under this
Agreement that are failed to be performed by the reason of Force Majeure till the effect of Force
Majeure is eliminated, and shall not bear any liability of breach of this Agreement. But such party
shall exert himself as much as possible to overcome such event and reduce its negative effects.

7.3 The suffering party from Force Majeure shall provide the other party with legal certifications
of such event issued by the notary office (or other proper agency) of the area where the event
occurs, which if fails, the other party may request the suffering party to bear any liability for
breach according to the provisions of this Agreement.

8. Effectiveness, Modification and Termination

8.1 This Agreement shall enter into force from the date of signing and sealing by Parties and
terminates when the term of authorization provided by this Agreement expires.

8.2 Prior to the expiration of this Agreement, if the Authorizer transfers all its stocks of
Wangxing to Sina Company or other party agreed upon by Sina Company in written form in advance, the
Authorizer shall not be bound by any provisions of this Agreement from the date of completing stock
transfer. But the Authorizer shall notify the transferee in writing the existence of this Agreement
during the transfer, and the transferee’s full consent to be bound by this Agreement shall be the
precondition of transferring stock rights.

8.3 The Authorizer hereby irrevocably and permanently waives its right to rescind this Agreement at
any time.

8.4 The Parties may modify and supplement this Agreement in written form with consents from both.
Such modification and supplement signed by and between the Parties shall be part of this Agreement
with equal legal effect to this Agreement.

8.5 The Authorizer hereby agrees that Sina Company shall have the right to terminate this Agreement
from time to time without any reason by written notification rendered 10 days ahead and shall not
bear any liability for breach.

8.6 Earlier termination of this Agreement shall not impose any effect upon the Parties’ rights and
obligations occurred already according to this Agreement prior to the date of such termination.

9. Settlement of Dispute & Governing Law

9.1 The Parties shall settle with good faith all disputes regarding to interpretation and
enforcement of any provisions of this Agreement by consultation.

9.2 The disputes that are failed to be resolved by consultation shall be referred to China
International Economic and Trade Arbitration Committee for arbitration according to its existing
arbitration rules. The place of arbitration shall be in Beijing; and the language used in
arbitration shall be Chinese. The decision of arbitration shall be final and binding upon both
parties.

9.3 Laws and regulations of PRC shall be applied for conclusion, execution, interpretation and
settlement of disputes concerning this agreement.

10. Miscellaneous

10.1 This agreement is made into one original with two copies, one for each party, both with
equally legal effectiveness.

3

 

10.2 Titles and headlines contained in this Agreement are set for convenience to its readers only
and shall not impose any effect upon interpretation of any provisions of this Agreement.

10.3 If any provision of this Agreement is entirely or partially invalid or unenforceable for the
reason of violating laws or government regulations or other reasons, the affected part of such
provision shall be deemed as deleted. But deleting the affected part of such provision shall not
impose any effect upon the legal effect of other part of such provision and other provisions of
this Agreement. The Parties shall negotiate and conclude new provision to replace such invalid or
unenforceable provision.

10.4 Unless otherwise stipulated, non-exercise or deferred exercise by either party of any rights,
authority or privilege under this Agreement shall not be deemed as waiver of such rights, authority
or privilege. And independent or partial exercise of any rights, authority or privilege shall not
exclude the exercise of other rights, authority or privilege as well.

10.5 This Agreement constitutes the entire agreement concluded by the Parties regarding to the
subject matters of cooperation program, and shall replace any previous or present, verbal or
written agreements concluded by the Parties regarding to the subject matters of cooperation
program. If the Parties’ previous promises or previous agreements signed by
the Parties regarding to any matters under this Agreement do not comply with the provisions of this
Agreement, this Agreement shall prevail.

10.6 The Parties shall additionally negotiate and confirm any issues not covered by this agreement.

	 	 	 	 	 	 	 	 	 
	Employee	 	 	 	SINA.com Technology (China) Co.Limited	 	 
	 
	 	 	 	 	 	 	 	 
	Signature:

	 	/s/
	 	Authorized Representative:
	 	/s/
	 	 
	 

	 	 
	 	 	 	 	 	 

4exv4w46

EXHIBIT 4.46

Share Pledge Agreement

This Share Pledge Agreement is entered into in Haidian District, Beijing between the following
parties on 18 (Day) 08 (Month) 2007 (Year):

Party A: YC Yan (hereinafter referred to as the “Pledgor”)

ID No.:

Party B: SINA.com Technology (China) Co., Ltd. (hereinafter referred to as the “Pledgee”)

Address: Room 1506, Ideal Plaza, 58 Bei Si Huan Xi Road, Haidian District, Beijing

Whereas:

	(1)	 	The Pledgor is a shareholder of Beijing Sina Infinity Advertising Co., Ltd. (hereinafter
referred to as “IAD Company”), and owns 20% of IAD Company’s shares;
	 
	(2)	 	All of the Pledgor’s investments in IAD Company were sourced from the loan(s) provided by the
Pledgee to the Pledgor in accordance with an agreement between the Pledgor and the Pledgee
regarding the aforesaid loan(s) (hereinafter referred to as the “Loan Agreement”), the Pledgor
bears RMB 200,000 Yuan of debt to the Pledgee;
	 
	(3)	 	The Pledgor and the Pledgee entered into an Agreement on Authorization to Exercise
Shareholder’s Voting Power (the “Share Rights Agreement”) on 18 (Day) 08
(Month) 2007 (Year), and according to the Share Rights Agreement, in the case that
the Pledgor breaches the Share Rights Agreement, the Pledgor shall pay liquidated damages;
	 
	(4)	 	IAD Company and the Pledgee entered into a “Trademark License Agreement” on 18
(Day) 08 (Month) 2007 (Year), and according to the Trademark License
Agreement, IAD Company shall pay corresponding royalties for trademark licensed by the Pledgee
to IAD Company;
	 
	(5)	 	IAD Company and the Pledgee entered into a “Technical Services Agreement” on 18
(Day) 08 (Month) 2007 (Year), and according to the Technical Service
Agreement, IAD Company shall, as the case may be, pay corresponding technology transfer fee,
technology license fee, technical service fee, equipment assignment fee and/or equipment
rental, etc. to the Pledgee;
	 
	(6)	 	The Pledgor agrees to pledge all of its shares in IAD Company and all other rights relevant
to the said share rights to the Pledgee as a collateral security for the Pledgor to pay off
all debts to the Pledgee and for IAD Company to perform its payment obligation pursuant to the
Trademark License Agreement and the Technical Services Agreement and other relevant
obligations; the Pledgee agrees to accept such security.

Therefore, both parties agree as follows after equal and friendly negotiations:

	1	 	Interpretation and Definitions
	 
	1.1	 	In this Agreement, unless otherwise specified in the context, the following terms shall be
interpreted according to their respective meanings defined in the following clauses.
	 
	1.2	 	Secured Debts: shall mean the following debts:

	 	1.2.1	 	all the principal, interest, overdue interest, liquidated damages, indemnities
which the Pledgor shall pay to the Pledgee under the Loan Agreement, as well as all
expenditures (including the lawyer’s fee) and other amounts paid by the Pledgee for
enforcing its rights under the Loan Agreement when the Pledgor breaches the Agreement;
	 
	 	1.2.2	 	all liquidated damages which the Pledgor shall pay to the Pledgee under the Share
Rights Agreement, the interest of the liquidated damages, the overdue interest, as well
as all expenditures (including the lawyer’s fee) and other amounts paid by the Pledgee
for enforcing its rights under the Share Rights Agreement when the Pledgor breaches the
Share Rights Agreement;
	 
	 	1.2.3	 	all royalties for trademark license, the liquidated damages and other relevant
fees which IAD Company shall pay to the Pledgee under the Trademark License Agreement, as
well as all expenditures (including the lawyer’s fee) and other amounts paid by the
Pledgee for enforcing its rights under the Trademark License Agreement when IAD Company
breaches the Agreement;
	 
	 	1.2.4	 	the technology transfer fee, technology license fee, technical service fee,
equipment assignment fee and/or equipment rental, etc., the liquidated damages and other
relevant fees, which IAD Company shall pay to the Pledgee under the Technical Services

-1-

 

	 	 	 	Agreement, as well as all expenditures (including the lawyer’s fee) and other amounts
paid by the Pledgee for enforcing its rights under the Technical Services Agreement
when IAD Company breaches the Technical Services Agreement.

	1.3	 	Pledged Rights: shall mean the Pledgor’s shares in IAD Company and all other rights relevant
to such shares. Specifically, the Pledged Rights include but are not limited to the following
rights:

	 	1.3.1	 	all dividends, profit distributions, extra dividends, allocated shares and any
other kind of funds relevant to the Pledged Rights, as well as corresponding rights and
interests, which the Pledgor shall be entitled to receive from IAD Company at present or
in the future;
	 
	 	1.3.2	 	the rights enjoyed by the Pledgor in determining IAD Company’s operational
guidelines, investment plans and other major matters as well as on electing and changing
directors and supervisors, which are corresponding to the Pledged Rights it holds;
	 
	 	1.3.3	 	all interests warranted, confirmed and promised by other parties under IAD
Company’s articles of association and other organizational documents to the Pledgor;
	 
	 	1.3.4	 	the Pledgor’s right of claiming against any party to IAD Company’s articles of
association or any other organizational document for compensation due to any breach;
	 
	 	1.3.5	 	the Pledgor’s right of consenting to or opposing the rescission, amendment or
termination of IAD Company’s articles of association and other organizational documents
due to the Pledged Rights it holds;
	 
	 	1.3.6	 	Other powers and rights relevant to the Pledged Rights, which the Pledgor is
entitled to according to relevant laws and regulations of China as well as IAD Company’s
articles of association and other organizational documents.

	2	 	Pledge of Stock Rights
	 
	2.1	 	The Pledgor warrants that it will, pursuant to the Loan Agreement and the Share Rights
Agreement, pays off relevant debts to the Pledgee, and meanwhile provide guaranty for IAD
Company to perform the payment obligation and other relevant obligations under the Trademark
License Agreement and the Technical Services Agreement. Therefore, the Pledgor agrees to
pledge the Pledged Rights to the Pledgee.
	 
	2.2	 	The Pledgor shall, on the date of execution of this Agreement, submit to the Pledgee the
following documents:

	 	2.2.1	 	the investment certificate issued by IAD Company to the Pledgor evidencing that
the Pledgor lawfully holds the Pledged Stock Rights;
	 
	 	2.2.2	 	the written documents showing that IAD Company’s other shareholders agree with the
Pledgor on establishing the pledge of share rights under this Agreement;
	 
	 	2.2.3	 	all other materials and documents reasonably required by the Pledgee.

	2.3	 	The Pledgor shall deliver the capital contribution certificate to the Pledgee on the date of
effectiveness of this Agreement, and go through the procedures for record of modification of
the share register in IAD Company.

	3	 	Scope of Security
	 
	3.1	 	The scope of security of the Pledged Stock Rights under this Agreement shall cover:

	 	3.1.1	 	the Secured Debts as defined in Article 1.2 of this Agreement;
	 
	 	3.1.2	 	the expenditures paid by the Pledgee for enforcing its right of pledge under this
Agreement.

	4	 	Term of Right of Pledge
	 
	4.1	 	The valid duration of the right of pledge which the Pledgee enjoys under this Agreement shall
commence on the effectiveness date of this Agreement until the three-year anniversary of the
date when the last sum of guaranteed debt is due.
	 
	5	 	Exercise of the Right of Pledge
	 
	5.1	 	In the event that the Pledgor fails to pay off its debts under the Loan Agreement or the
Share Rights Agreement to the Pledgee on time, or IAD Company fails to perform its payment
obligation or other relevant obligations to the Pledgee under the Trademark License Agreement
or the Technical Services Agreement, or the Pledgor breaches its responsibilities or

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	 	 	obligations under this Agreement, the Pledgee shall be entitled to, within a scope permitted by the
applicable laws, exercise the right of pledge at any time it considers appropriate within the
duration of the right of pledge and in a method it considers appropriate. Such methods shall
include but not be limited to:

	 	5.1.1	 	negotiating with the Pledgor on paying off the Secured Debts by transferring to
the Pledgee the Pledged Rights;
	 
	 	5.1.2	 	selling off the Pledged Rights, and paying off the Secured Debts with the proceeds
from the sale;
	 
	 	5.1.3	 	retaining a competent institution to auction total or partial Pledged Rights;
and/or
	 
	 	5.1.4	 	disposing of the Pledged Rights by taking other appropriate measures permitted by
the applicable laws.

	5.2	 	In the process when the Pledgee disposes of the Pledged Rights according to the preceding
paragraph, the Pledgee shall be entitled to:

	 	5.2.1	 	substitute the Pledgor to exercise the powers or rights relevant to the Pledged
Rights as IAD Company’s shareholder;
	 
	 	5.2.2	 	pay necessary money for exercising any power or right imposed by this Agreement or
the law upon the Pledgee;
	 
	 	5.2.3	 	exercise in a way it considers appropriate or permit other person to exercise any
power or right under the Pledged Rights;
	 
	 	5.2.4	 	recover or claim the money payable to the Pledgor arising from the Pledged Rights
for paying off the Secured Debts;
	 
	 	5.2.5	 	with respect to claim by any person for the rights relevant to the Pledged Rights
in any respect, make settlement, reach reconciliation, resort to arbitration or
litigation proceedings or seek any other measures it considers appropriate;
	 
	 	5.2.6	 	take all other actions permitted by law for the purpose of enforcing any of its
rights under this Agreement.

	5.3	 	At the Pledgee’s request, the Pledgor must assist the Pledgee in obtaining all necessary
approvals or consents relevant to the Pledgee’s enforcement of its credit rights and the right
of pledge.
	 
	5.4	 	Within the duration of the right of pledge, the Pledgee shall be entitled to collect the
legal fruits of the Pledged Rights.
	 
	5.5	 	All the money collected by the Pledgee from the exercise of its right of pledge (including
but not limited to the price obtained from disposing of the Pledged Rights and any proceeds
derived from the Pledged Rights) shall be put into use in the following order on the premise
of not violating other clauses of this Agreement:

	 	5.5.1	 	It shall be at first used to pay all the expenses incurred to the Pledgee due to
exercise of the right of pledge and/or other rights under this Agreement;
	 
	 	5.5.2	 	Then, it shall be used by the Pledgee to pay off the Secured Debts according to
law;
	 
	 	5.5.3	 	If there is still remaining amount after the Secured Debts are paid off, the said
amount shall be paid to the Pledgor or the person who is entitled to receive it, with no
interest being paid.

	6	 	Rescission of the Right of Pledge
	 
	6.1	 	If, at any time within the effective duration of the right of pledge, the secured debts are
fully paid off, and the Pledgor no longer bears any obligation or liability under this
Agreement, the Pledgee’s right of pledge under this Agreement shall be extinct on the date
when all the Secured Debts are paid off. In such a case, at the Pledgor’s request, the Pledgee
shall execute the written documents on the pledge of shares created under this Agreement and
deliver them to the Pledgor, or assist the Pledgor in going through other procedures for
rescinding the pledge of shares under this Agreement.
	 
	6.2	 	Unless otherwise prescribed in the preceding paragraph, the pledge of shares under this
Agreement shall not be rescinded without the Pledgee’s prior written consent.
	 
	7	 	Nature of Security
	 
	7.1	 	The guaranty under this Agreement shall not be affected by other guaranties held by the
Pledgee regarding the Secured Debts, and shall not affect the effectiveness of those other

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	 	 	securities, either.

	7.2	 	Neither the security nor the Pledgee’s rights under this Agreement shall be rescinded or
affected due to any of the following circumstances:

	 	7.2.1	 	the Pledgee’s offering a grace period to, rescission or mitigation of any person’s
debts at any time;
	 
	 	7.2.2	 	any amendment, modification or supplement to the Loan Agreement, the Share Rights
Agreement, the Trademark License Agreement and/or the Technical Services Agreement;
	 
	 	7.2.3	 	any disposal, modification or rescission of any other guaranty of the relevant
secured debts;
	 
	 	7.2.4	 	reconciliation reached on the claims raised by any person between the Pledgee and
such person;
	 
	 	7.2.5	 	any delay, act, nonfeasance or mistake arising out of the Pledgee’s exercise of
its rights;
	 
	 	7.2.6	 	any circumstance which the Loan Agreement, the Share Rights Agreement, the
Trademark License Agreement and/or the Technical Services Agreement or the performance
thereof are considered ineffective; or
	 
	 	7.2.7	 	any other event which might otherwise affect the Pledgor’s obligations under this
Agreement.

	8	 	Public Notarial Procedures
	 
	8.1	 	After the effectiveness of this Agreement, the Pledgor shall, at the Pledgee’s request,
cooperate with the Pledgee in going together to lawful public notary office to go through the
notarial procedures as required by this Agreement, and shall provide all necessary cooperation
as per the public notary office’s requirements.
	 
	8.2	 	All expenses incurred from the above mentioned notarial procedures shall be solely borne by
the Pledgee.
	 
	9	 	Special Provisions
	 
	9.1	 	Without the Pledgee’s prior written consent, the Pledgor shall not assign any right it may
enjoy under this Agreement or any obligation it shall bear hereunder to any other party.
	 
	9.2	 	The Pledgee shall be entitled to assign any of its rights or obligations under this Agreement
to any third party at any time without being consented by the Pledgor. In such a case, the
Pledgor shall unconditionally cooperate with the Pledgee in going through relevant procedures
for assignment of the rights and obligations, including but not limited to execution of
relevant agreement on change of contractual parties.
	 
	9.3	 	After the procedures for pledge of the shares under this Agreement are completed, unless the
Pledgee makes a reverse decision and informs the Pledgor, the Pledgor shall be obligated to
continue abiding by the legal provisions concerning the Pledged Rights, performing all rights
and obligations relevant to the Pledged Rights (including but not limited to exercising all
its powers and rights relevant to the Pledged Rights under IAD Company’s articles of
association), and fulfilling the prudence and credibility obligations which a shareholder
shall fulfill.
	 
	9.4	 	The Pledgee shall bear no obligation or legal liability for the Pledged Rights, nor does it
have to perform any obligation that the Pledgor shall bear for the Pledged Rights. Without
prejudice to the Pledgee’s rights under this Agreement, the Pledgee shall bear no obligation
or legal liability to others for the Pledged Rights under this Agreement.
	 
	9.5	 	The Pledgor must timely notify the Pledgee of any event that might affect the Pledged Stock
Rights or the value of the Pledged Stock Rights or might impede the Pledgor from performing
its rights as IAD Company’s shareholder or harm or delay its performing such rights.
	 
	9.6	 	Without the Pledgee’s prior consent, the Pledgor may not conduct any of the following acts:

	 	9.6.1	 	Amending or modifying in any other way IAD Company’s articles of association;
	 
	 	9.6.2	 	Establishing any further guaranty on the Pledged Rights beside the pledge created
under this Agreement;
	 
	 	9.6.3	 	Disposing of any interest of the Pledged Rights in any way;
	 
	 	9.6.4	 	Conducting any act that might harm the Pledgee’s Pledged Rights or any of its
rights 

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	 	 	 	under this Agreement.

	9.7	 	Without the Pledgee’s written consent, the Pledgor shall not have the Pledged Rights
transferred or re-pledged, or dispose of the Pledged Rights in any
other way which may harm the right of pledge enjoyed by the Pledgee
under this Agreement.
	 
	10	 	Representations, Commitments and Warranties
	 
	10.1	 	The pledgor hereby makes representations, commitments and warranties to the Pledgee as
follows:

	 	10.1.1	 	The Pledgor has lawful eligibility and necessary power to conclude this Agreement and
is able to entirely perform any of its obligations under this Agreement;
	 
	 	10.1.2	 	The Pledgor has lawfully performed its obligation of contributing investments to IAD
Company; is the only holder of the Pledged Rights; and has lawful, complete and full
ownership over all the Pledged Rights under this Agreement;
	 
	 	10.1.3	 	IAD Company’s shareholders’ meeting has adopted a resolution on consenting to the
pledge of shares pursuant to this Agreement;
	 
	 	10.1.4	 	Except the pledge established in this Agreement, the Pledgor has not established or
permitted others to establish any security right on the Pledged Rights without the
Pledgee’s prior written consent; the Pledged Rights are involved in no ownership dispute,
are not distained or limited in other legal proceedings, but may be pledged and
transferred according to the applicable laws;
	 
	 	10.1.5	 	There is neither existing or pending litigation, arbitration or administrative
proceedings against the Pledged Rights and/or the Pledgor nor any such threat;
	 
	 	10.1.6	 	The Pledgor’s execution of this Agreement, exercise of the rights under this Agreement,
or performance of the obligations under this Agreement will not violate any document or
legal provision applicable to the Pledgor or its properties;
	 
	 	10.1.7	 	The pledge created under this Agreement constitutes an effective security of the
secured debts, may be implemented according to its clauses, and shall not be restricted
by any other’s rights, interests or claims at a preferential or equal status;
	 
	 	10.1.8	 	All documents delivered by the Pledgor to the Pledgee and relevant to this Agreement
are authentic, complete and accurate in all substantive aspects, and there is no omission
that might cause any information in such documents to be in any way incorrect or
misleading;
	 
	 	10.1.9	 	This Agreement constitutes lawful, effective and binding obligations to the Pledgor,
and may be subject to compulsory enforcement according to its clauses upon application.

	10.2	 	The Pledgee hereby makes representations, commitments and warranties to the Pledgor:

	 	10.2.1	 	The Pledgee is a lawfully established and validly existing limited liability company,
has the right to conclude this Agreement and is able to perform its obligations under
this Agreement.
	 
	 	10.2.2	 	The Pledgee has obtained all authorizations and consents for executing and performing
this Agreement.

	11	 	Breach Liability
	 
	11.1	 	If Party A or Party B (each, a “Party”) directly or indirectly violates any provision
hereunder or fails to perform or fails to timely and fully perform any of its obligations
hereunder and thus constitutes a breach of this Agreement, the non-defaulting Party (the
“Non-Defaulting Party”) shall have the right to send a written notification requiring the
defaulting Party (the “Defaulting Party”) to make corrections, take adequate, effective and
timely measures to eliminate the effect thus caused, and indemnify the Non-Defaulting Party
any losses suffered from the Defaulting Party’s breach of contract.
	 
	11.2	 	Upon occurrence of any breach of contract, if the Non-Defaulting Party, based on reasonable
and objective judgment, believes that such breach of contract has caused it impossible or
unfair for the Non-Defaulting Party to perform its corresponding obligations hereunder, then
the Non-Defaulting Party may notify the Defaulting Party in writing that it will suspend its
performance of its corresponding obligations hereunder, until the Defaulting Party has stopped

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	 	 	its breach of contract, taken adequate, effective and timely measures to eliminate the effect
thus
caused, and indemnified the Non-Defaulting Party any losses suffered from the Defaulting
Party’s breach of contract.

	11.3	 	The Non-Defaulting Party’s losses to be indemnified by the Defaulting Party due to its breach
of contract shall include the direct economic losses suffered by the Non-Defaulting Party due
to the breach of contract and any expectable indirect losses and additional fees and costs,
including but not limited to the lawyer’s fee, legal cost, arbitration cost, financial cost
and travel cost, etc.
	 
	12	 	Force Majeure
	 
	12.1	 	A Force Majeure Event refers to any event uncontrollable, unpredictable, or unavoidable even
predicted by the Parties hereunder, which interferes, affects or delays any Party’s
performance of the whole or part of its obligations hereunder. Such events shall include,
without limitation, the government’s act, acts of God, war, hacker’s attack or any other
similar event.
	 
	12.2	 	Any Party suffering from a Force Majeure Event may suspend its performance of its relevant
obligations hereunder thus prevented, without having to undertake any liability for breach of
contract, until the effect of such Force Majeure Event is eliminated. However, such affected
Party shall try its best to overcome such Force Majeure Event and reduce its adverse effect.
	 
	12.3	 	The Party affected by a Force Majeure Event shall provide the other Party with a legal
certificate issued by the local notary public (or any other competent organ) for certifying
such Force Majeure Event; otherwise, the other Party may request it to undertake breach
liability according to this Agreement.
	 
	13	 	Effectiveness, Amendment and Termination
	 
	13.1	 	This Agreement shall become effective upon the satisfaction of the following conditions:

	 	13.1.1	 	The pledgor and the Pledgee have formally executed this Agreement;
	 
	 	13.1.2	 	The pledge of the shares under this Agreement has been recorded in IAD Company’s
register of shareholders.

	13.2	 	Both parties may, after negotiations, amend this Agreement in the form of a written agreement
at any time.
	 
	13.3	 	This Agreement shall be terminated when any of the following circumstances arises:

	 	13.3.1	 	The duration of the right of pledge has elapsed;
	 
	 	13.3.2	 	Both parties rescind the pledge of the shares under this Agreement according to the
clause of “Rescission of the Right of Pledge” in this Agreement;
	 
	 	13.3.3	 	The Pledgee and the Pledgor agree after negotiations to terminate this Agreement;

	 
	 	13.3.4	 	The Pledgee unilaterally consents on terminating this Agreement in advance.

	13.4	 	The early termination of this Agreement shall not affect either party’s rights or obligations
accrued under this Agreement prior to the date when this Agreement was early terminated.
	 
	14	 	Dispute Settlement
	 
	14.1	 	Any dispute arising out of interpretation or performance hereof shall be settled through
friendly negotiation between the Parties.
	 
	14.2	 	If such negotiation fails, both Parties shall submit such dispute to China International
Economic and Trade Arbitration Commission for arbitration according its current arbitration
rules. The place of arbitration shall be Beijing, and the language of arbitration shall be
Chinese. The arbitration award shall be final and binding on both Parties.
	 
	14.3	 	The formation, effectiveness, performance and interpretation hereof as well as dispute
settlement shall be governed by the laws of the People’s Republic of China.
	 
	15	 	Miscellaneous
	 
	15.1	 	This Agreement is executed in triplicate, with each Party holding one, one copy for notary,
all of which shall be of the same legal effect.
	 
	15.2	 	The headings used in this Agreement are for convenience only, and shall not affect the
interpretation of any provision hereof.

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	15.3	 	Both Parties may modify and supplement this Agreement through written agreements. Such
written agreement of modification or supplementation executed by both Parties shall constitute
a part of, and be of the same legal effect as, this Agreement.
	 
	15.4	 	If any provision hereunder is held invalid or unenforceable in whole or in part due to
violating laws or regulations or any other reason, the affected part of such provision shall
be deemed deleted from the Agreement. The deletion of such affected part shall not affect the
validity and enforceability of the other parts of such provision or that of other provisions
hereof. Both Parties shall negotiate and enter into new provisions so as to replace such
invalid or unenforceable provision.
	 
	15.5	 	Unless otherwise provided, any Party’s failure or delay in exercising any right, power or
privilege shall not be deemed as a waiver of such right, power or privilege. Any single or
partial exercise of any right, power or privilege shall not preclude exercise of any other
right, power or privilege.
	 
	15.6	 	This Agreement constitutes the entire agreement between the Parties with respect to the
subject matter hereof and supersede any and all previous or simultaneous oral and written
agreements, understandings and communication between the Parties relating to such subject
matter. Unless otherwise expressly provided herein, there shall not be any other express or
implied obligations or undertakings between the Parties.
	 
	15.7	 	This Agreement shall be binding upon both parties and their respective successors and
qualified assignees.
	 
	15.8	 	Any other matters not contemplated hereunder shall be subject to further negotiation between
the Parties.

 
	 	 	 	 	 	 	 	 	 
	Shareholder	 	 	 	SINA.com Technology (China) Co., Ltd.	 	 
	 
	 	 	 	 	 	 	 	 
	Handwritten Signature: 

	 	/s/
	 	Authorized Representative: 
	 	/s/
	 	 
	 

	 	 
	 	 	 	 	 	 

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Share Pledge Agreement

This Share Pledge Agreement is entered into in Haidian District, Beijing between the following
parties on 18 (Day) 08 (Month) 2007 (Year):

Party A: H Lin (hereinafter referred to as the “Pledgor”)

ID No.:

Party B: SINA.com Technology (China) Co., Ltd. (hereinafter referred to as the “Pledgee”)

Address: Room 1506, Ideal Plaza, 58 Bei Si Huan Xi Road, Haidian District, Beijing

Whereas:

	(1)	 	The Pledgor is a shareholder of Beijing Sina Infinity Advertising Co., Ltd. (hereinafter
referred to as “IAD Company”), and owns 20% of IAD Company’s shares;
	 
	(2)	 	All of the Pledgor’s investments in IAD Company were sourced from the loan(s) provided by the
Pledgee to the Pledgor in accordance with an agreement between the Pledgor and the Pledgee
regarding the aforesaid loan(s) (hereinafter referred to as the “Loan Agreement”), the Pledgor
bears RMB 200,000 Yuan of debt to the Pledgee;
	 
	(3)	 	The Pledgor and the Pledgee entered into an Agreement on Authorization to Exercise
Shareholder’s Voting Power (the “Share Rights Agreement”) on 18 (Day) 08
(Month) 2007 (Year), and according to the Share Rights Agreement, in the case that
the Pledgor breaches the Share Rights Agreement, the Pledgor shall pay liquidated damages;
	 
	(4)	 	IAD Company and the Pledgee entered into a “Trademark License Agreement” on 18
(Day) 08 (Month) 2007 (Year), and according to the Trademark License
Agreement, IAD Company shall pay corresponding royalties for trademark licensed by the Pledgee
to IAD Company;
	 
	(5)	 	IAD Company and the Pledgee entered into a “Technical Services Agreement” on 18
(Day) 08 (Month) 2007 (Year), and according to the Technical Service
Agreement, IAD Company shall, as the case may be, pay corresponding technology transfer fee,
technology license fee, technical service fee, equipment assignment fee and/or equipment
rental, etc. to the Pledgee;
	 
	(6)	 	The Pledgor agrees to pledge all of its shares in IAD Company and all other rights relevant
to the said share rights to the Pledgee as a collateral security for the Pledgor to pay off
all debts to the Pledgee and for IAD Company to perform its payment obligation pursuant to the
Trademark License Agreement and the Technical Services Agreement and other relevant
obligations; the Pledgee agrees to accept such security.

Therefore, both parties agree as follows after equal and friendly negotiations:

	1	 	Interpretation and Definitions
	 
	1.1	 	In this Agreement, unless otherwise specified in the context, the following terms shall be
interpreted according to their respective meanings defined in the following clauses.
	 
	1.2	 	Secured Debts: shall mean the following debts:

	 	1.2.1	 	all the principal, interest, overdue interest, liquidated damages, indemnities
which the Pledgor shall pay to the Pledgee under the Loan Agreement, as well as all
expenditures (including the lawyer’s fee) and other amounts paid by the Pledgee for
enforcing its rights under the Loan Agreement when the Pledgor breaches the Agreement;
	 
	 	1.2.2	 	all liquidated damages which the Pledgor shall pay to the Pledgee under the Share
Rights Agreement, the interest of the liquidated damages, the overdue interest, as well
as all expenditures (including the lawyer’s fee) and other amounts paid by the Pledgee
for enforcing its rights under the Share Rights Agreement when the Pledgor breaches the
Share Rights Agreement;
	 
	 	1.2.3	 	all royalties for trademark license, the liquidated damages and other relevant
fees which IAD Company shall pay to the Pledgee under the Trademark License Agreement, as
well as all expenditures (including the lawyer’s fee) and other amounts paid by the
Pledgee for enforcing its rights under the Trademark License Agreement when IAD Company
breaches the Agreement;
	 
	 	1.2.4	 	the technology transfer fee, technology license fee, technical service fee,
equipment assignment fee and/or equipment rental, etc., the liquidated damages and other
relevant

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	 	 	 	fees, which IAD Company shall pay to the Pledgee under the Technical Services
Agreement, as well as all expenditures (including the lawyer’s fee) and other amounts
paid by the Pledgee for enforcing its rights under the Technical Services Agreement when
IAD Company breaches the Technical Services Agreement.

	1.3	 	Pledged Rights: shall mean the Pledgor’s shares in IAD Company and all other rights relevant
to such shares. Specifically, the Pledged Rights include but are not limited to the following
rights:

	 	1.3.1	 	all dividends, profit distributions, extra dividends, allocated shares and any
other kind of funds relevant to the Pledged Rights, as well as corresponding rights and
interests, which the Pledgor shall be entitled to receive from IAD Company at present or
in the future;
	 
	 	1.3.2	 	the rights enjoyed by the Pledgor in determining IAD Company’s operational
guidelines, investment plans and other major matters as well as on electing and changing
directors and supervisors, which are corresponding to the Pledged Rights it holds;
	 
	 	1.3.3	 	all interests warranted, confirmed and promised by other parties under IAD
Company’s articles of association and other organizational documents to the Pledgor;
	 
	 	1.3.4	 	the Pledgor’s right of claiming against any party to IAD Company’s articles of
association or any other organizational document for compensation due to any breach;
	 
	 	1.3.5	 	the Pledgor’s right of consenting to or opposing the rescission, amendment or
termination of IAD Company’s articles of association and other organizational
documents due to the Pledged Rights it holds;
	 
	 	1.3.6	 	Other powers and rights relevant to the Pledged Rights, which the Pledgor is
entitled to according to relevant laws and regulations of China as well as IAD Company’s
articles of association and other organizational documents.

	2	 	Pledge of Stock Rights
	 
	2.1	 	The Pledgor warrants that it will, pursuant to the Loan Agreement and the Share Rights
Agreement, pays off relevant debts to the Pledgee, and meanwhile provide guaranty for IAD
Company to perform the payment obligation and other relevant obligations under the Trademark
License Agreement and the Technical Services Agreement. Therefore, the Pledgor agrees to
pledge the Pledged Rights to the Pledgee.
	 
	2.2	 	The Pledgor shall, on the date of execution of this Agreement, submit to the Pledgee the
following documents:

	 	2.2.1	 	the investment certificate issued by IAD Company to the Pledgor evidencing that
the Pledgor lawfully holds the Pledged Stock Rights;
	 
	 	2.2.2	 	the written documents showing that IAD Company’s other shareholders agree with the
Pledgor on establishing the pledge of share rights under this Agreement;
	 
	 	2.2.3	 	all other materials and documents reasonably required by the Pledgee.

	2.3	 	The Pledgor shall deliver the capital contribution certificate to the Pledgee on the date of
effectiveness of this Agreement, and go through the procedures for record of modification of
the share register in IAD Company.
	 
	3	 	Scope of Security
	 
	3.1	 	The scope of security of the Pledged Stock Rights under this Agreement shall cover:

	 	3.1.1	 	the Secured Debts as defined in Article 1.2 of this Agreement;
	 
	 	3.1.2	 	the expenditures paid by the Pledgee for enforcing its right of pledge under this
Agreement.

	4	 	Term of Right of Pledge
	 
	4.1	 	The valid duration of the right of pledge which the Pledgee enjoys under this Agreement shall
commence on the effectiveness date of this Agreement until the three-year anniversary of the
date when the last sum of guaranteed debt is due.
	 
	5	 	Exercise of the Right of Pledge
	 
	5.1	 	In the event that the Pledgor fails to pay off its debts under the Loan Agreement or the
Share Rights Agreement to the Pledgee on time, or IAD Company fails to perform its payment
obligation or other relevant obligations to the Pledgee under the Trademark License

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	 	 	Agreement
or the Technical Services Agreement, or the Pledgor breaches its responsibilities or
obligations under this Agreement, the Pledgee shall be entitled to, within a scope permitted
by
the applicable laws, exercise the right of pledge at any time it considers appropriate within
the duration of the right of pledge and in a method it considers appropriate. Such methods
shall include but not be limited to:

	 	5.1.1	 	negotiating with the Pledgor on paying off the Secured Debts by transferring to
the Pledgee the Pledged Rights;
	 
	 	5.1.2	 	selling off the Pledged Rights, and paying off the Secured Debts with the proceeds
from the sale;
	 
	 	5.1.3	 	retaining a competent institution to auction total or partial Pledged Rights;
and/or
	 
	 	5.1.4	 	disposing of the Pledged Rights by taking other appropriate measures permitted by
the applicable laws.

	5.2	 	In the process when the Pledgee disposes of the Pledged Rights according to the preceding
paragraph, the Pledgee shall be entitled to:

	 	5.2.1	 	substitute the Pledgor to exercise the powers or rights relevant to the Pledged
Rights as IAD Company’s shareholder;
	 
	 	5.2.2	 	pay necessary money for exercising any power or right imposed by this Agreement or
the law upon the Pledgee;
	 
	 	5.2.3	 	exercise in a way it considers appropriate or permit other person to exercise any
power or right under the Pledged Rights;
	 
	 	5.2.4	 	recover or claim the money payable to the Pledgor arising from the Pledged Rights
for paying off the Secured Debts;
	 
	 	5.2.5	 	with respect to claim by any person for the rights relevant to the Pledged Rights
in any respect, make settlement, reach reconciliation, resort to arbitration or
litigation proceedings or seek any other measures it considers appropriate;
	 
	 	5.2.6	 	take all other actions permitted by law for the purpose of enforcing any of its
rights under this Agreement.

	5.3	 	At the Pledgee’s request, the Pledgor must assist the Pledgee in obtaining all necessary
approvals or consents relevant to the Pledgee’s enforcement of its credit rights and the right
of pledge.
	 
	5.4	 	Within the duration of the right of pledge, the Pledgee shall be entitled to collect the
legal fruits of the Pledged Rights.
	 
	5.5	 	All the money collected by the Pledgee from the exercise of its right of pledge (including
but not limited to the price obtained from disposing of the Pledged Rights and any proceeds
derived from the Pledged Rights) shall be put into use in the following order on the premise
of not violating other clauses of this Agreement:

	 	5.5.1	 	It shall be at first used to pay all the expenses incurred to the Pledgee due to
exercise of the right of pledge and/or other rights under this Agreement;
	 
	 	5.5.2	 	Then, it shall be used by the Pledgee to pay off the Secured Debts according to
law;
	 
	 	5.5.3	 	If there is still remaining amount after the Secured Debts are paid off, the said
amount shall be paid to the Pledgor or the person who is entitled to receive it, with no
interest being paid.

	6	 	Rescission of the Right of Pledge
	 
	6.1	 	If, at any time within the effective duration of the right of pledge, the secured debts are
fully paid off, and the Pledgor no longer bears any obligation or liability under this
Agreement, the Pledgee’s right of pledge under this Agreement shall be extinct on the date
when all the Secured Debts are paid off. In such a case, at the Pledgor’s request, the Pledgee
shall execute the written documents on the pledge of shares created under this Agreement and
deliver them to the Pledgor, or assist the Pledgor in going through other procedures for
rescinding the pledge of shares under this Agreement.
	 
	6.2	 	Unless otherwise prescribed in the preceding paragraph, the pledge of shares under this
Agreement shall not be rescinded without the Pledgee’s prior written consent.
	 
	7	 	Nature of Security
	 
	7.1	 	The guaranty under this Agreement shall not be affected by other guaranties held by the

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	 	 	Pledgee regarding the Secured Debts, and shall not affect the effectiveness of those other
securities, either.
	 
	7.2	 	Neither the security nor the Pledgee’s rights under this Agreement shall be rescinded or
affected due to any of the following circumstances:

	 	7.2.1	 	the Pledgee’s offering a grace period to, rescission or mitigation of any person’s
debts at any time;
	 
	 	7.2.2	 	any amendment, modification or supplement to the Loan Agreement, the Share Rights
Agreement, the Trademark License Agreement and/or the Technical Services Agreement;
	 
	 	7.2.3	 	any disposal, modification or rescission of any other guaranty of the relevant
secured debts;
	 
	 	7.2.4	 	reconciliation reached on the claims raised by any person between the Pledgee and
such person;
	 
	 	7.2.5	 	any delay, act, nonfeasance or mistake arising out of the Pledgee’s exercise of
its rights;
	 
	 	7.2.6	 	any circumstance which the Loan Agreement, the Share Rights Agreement, the
Trademark License Agreement and/or the Technical Services Agreement or the performance
thereof are considered ineffective; or
	 
	 	7.2.7	 	any other event which might otherwise affect the Pledgor’s obligations under this
Agreement.

	8	 	Public Notarial Procedures
	 
	8.1	 	After the effectiveness of this Agreement, the Pledgor shall, at the Pledgee’s request,
cooperate with the Pledgee in going together to lawful public notary office to go through the
notarial procedures as required by this Agreement, and shall provide all necessary cooperation
as per the public notary office’s requirements.
	 
	8.2	 	All expenses incurred from the above mentioned notarial procedures shall be solely borne by
the Pledgee.
	 
	9	 	Special Provisions
	 
	9.1	 	Without the Pledgee’s prior written consent, the Pledgor shall not assign any right it may
enjoy under this Agreement or any obligation it shall bear hereunder to any other party.
	 
	9.2	 	The Pledgee shall be entitled to assign any of its rights or obligations under this Agreement
to any third party at any time without being consented by the Pledgor. In such a case, the
Pledgor shall unconditionally cooperate with the Pledgee in going through relevant procedures
for assignment of the rights and obligations, including but not limited to execution of
relevant agreement on change of contractual parties.
	 
	9.3	 	After the procedures for pledge of the shares under this Agreement are completed, unless the
Pledgee makes a reverse decision and informs the Pledgor, the Pledgor shall be obligated to
continue abiding by the legal provisions concerning the Pledged Rights, performing all rights
and obligations relevant to the Pledged Rights (including but not limited to exercising all
its powers and rights relevant to the Pledged Rights under IAD Company’s articles of
association), and fulfilling the prudence and credibility obligations which a shareholder
shall fulfill.
	 
	9.4	 	The Pledgee shall bear no obligation or legal liability for the Pledged Rights, nor does it
have to perform any obligation that the Pledgor shall bear for the Pledged Rights. Without
prejudice to the Pledgee’s rights under this Agreement, the Pledgee shall bear no obligation
or legal liability to others for the Pledged Rights under this Agreement.
	 
	9.5	 	The Pledgor must timely notify the Pledgee of any event that might affect the Pledged Stock
Rights or the value of the Pledged Stock Rights or might impede the Pledgor from performing
its rights as IAD Company’s shareholder or harm or delay its performing such rights.
	 
	9.6	 	Without the Pledgee’s prior consent, the Pledgor may not conduct any of the following acts:

	 	9.6.1	 	Amending or modifying in any other way IAD Company’s articles of association;
	 
	 	9.6.2	 	Establishing any further guaranty on the Pledged Rights beside the pledge created
under this Agreement;
	 
	 	9.6.3	 	Disposing of any interest of the Pledged Rights in any way;

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	 	9.6.4	 	Conducting any act that might harm the Pledgee’s Pledged Rights or any of its
rights under this Agreement.

	9.7	 	Without the Pledgee’s written consent, the Pledgor shall not have the Pledged Rights
transferred or re-pledged, or dispose of the Pledged Rights in any other way which may harm
the right of pledge enjoyed by the Pledgee under this Agreement.
	 
	10	 	Representations, Commitments and Warranties
	 
	10.1	 	The pledgor hereby makes representations, commitments and warranties to the Pledgee as
follows:

	 	10.1.1	 	The Pledgor has lawful eligibility and necessary power to conclude this Agreement and
is able to entirely perform any of its obligations under this Agreement;
	 
	 	10.1.2	 	The Pledgor has lawfully performed its obligation of contributing investments to IAD
Company; is the only holder of the Pledged Rights; and has lawful, complete and full
ownership over all the Pledged Rights under this Agreement;
	 
	 	10.1.3	 	IAD Company’s shareholders’ meeting has adopted a resolution on consenting to the
pledge of shares pursuant to this Agreement;
	 
	 	10.1.4	 	Except the pledge established in this Agreement, the Pledgor has not established or
permitted others to establish any security right on the Pledged Rights without the
Pledgee’s prior written consent; the Pledged Rights are involved in no ownership dispute,
are not distained or limited in other legal proceedings, but may be pledged and
transferred according to the applicable laws;
	 
	 	10.1.5	 	There is neither existing or pending litigation, arbitration or administrative
proceedings against the Pledged Rights and/or the Pledgor nor any such threat;
	 
	 	10.1.6	 	The Pledgor’s execution of this Agreement, exercise of the rights under this Agreement,
or performance of the obligations under this Agreement will not violate any document or
legal provision applicable to the Pledgor or its properties;
	 
	 	10.1.7	 	The pledge created under this Agreement constitutes an effective security of the
secured debts, may be implemented according to its clauses, and shall not be restricted
by any other’s rights, interests or claims at a preferential or equal status;
	 
	 	10.1.8	 	All documents delivered by the Pledgor to the Pledgee and relevant to this Agreement
are authentic, complete and accurate in all substantive aspects, and there is no omission
that might cause any information in such documents to be in any way incorrect or
misleading;
	 
	 	10.1.9	 	This Agreement constitutes lawful, effective and binding obligations to the Pledgor,
and may be subject to compulsory enforcement according to its clauses upon application.

	10.2	 	The Pledgee hereby makes representations, commitments and warranties to the Pledgor:

	 	10.2.1	 	The Pledgee is a lawfully established and validly existing limited liability company,
has the right to conclude this Agreement and is able to perform its obligations under
this Agreement.
	 
	 	10.2.2	 	The Pledgee has obtained all authorizations and consents for executing and performing
this Agreement.

	11	 	Breach Liability
	 
	11.1	 	If Party A or Party B (each, a “Party”) directly or indirectly violates any provision
hereunder or fails to perform or fails to timely and fully perform any of its obligations
hereunder and thus constitutes a breach of this Agreement, the non-defaulting Party (the
“Non-Defaulting Party”) shall have the right to send a written notification requiring the
defaulting Party (the “Defaulting Party”) to make corrections, take adequate, effective and
timely measures to eliminate the effect thus caused, and indemnify the Non-Defaulting Party
any losses suffered from the Defaulting Party’s breach of contract.
	 
	11.2	 	Upon occurrence of any breach of contract, if the Non-Defaulting Party, based on reasonable
and objective judgment, believes that such breach of contract has caused it impossible or
unfair for the Non-Defaulting Party to perform its corresponding obligations hereunder, then
the Non-Defaulting Party may notify the Defaulting Party in writing that it will suspend its

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	 	 	performance of its corresponding obligations hereunder, until the Defaulting Party has stopped
its breach of contract, taken adequate, effective and timely measures to eliminate the effect
thus caused, and indemnified the Non-Defaulting Party any losses suffered from the Defaulting
Party’s breach of contract.
	 
	11.3	 	The Non-Defaulting Party’s losses to be indemnified by the Defaulting Party due to its breach
of contract shall include the direct economic losses suffered by the Non-Defaulting Party due
to the breach of contract and any expectable indirect losses and additional fees and costs,
including but not limited to the lawyer’s fee, legal cost, arbitration cost, financial cost
and travel cost, etc.
	 
	12	 	Force Majeure
	 
	12.1	 	A Force Majeure Event refers to any event uncontrollable, unpredictable, or unavoidable even
predicted by the Parties hereunder, which interferes, affects or delays any Party’s
performance of the whole or part of its obligations hereunder. Such events shall include,
without limitation, the government’s act, acts of God, war, hacker’s attack or any other
similar event.
	 
	12.2	 	Any Party suffering from a Force Majeure Event may suspend its performance of its relevant
obligations hereunder thus prevented, without having to undertake any liability for breach of
contract, until the effect of such Force Majeure Event is eliminated. However, such affected
Party shall try its best to overcome such Force Majeure Event and reduce its adverse effect.
	 
	12.3	 	The Party affected by a Force Majeure Event shall provide the other Party with a legal
certificate issued by the local notary public (or any other competent organ) for certifying
such Force Majeure Event; otherwise, the other Party may request it to undertake breach
liability according to this Agreement.
	 
	13	 	Effectiveness, Amendment and Termination

	13.1	 	This Agreement shall become effective upon the satisfaction of the following conditions:

	 	13.1.1	 	The pledgor and the Pledgee have formally executed this Agreement;
	 
	 	13.1.2	 	The pledge of the shares under this Agreement has been recorded in IAD Company’s
register of shareholders.

	13.2	 	Both parties may, after negotiations, amend this Agreement in the form of a written agreement
at any time.
	 
	13.3	 	This Agreement shall be terminated when any of the following circumstances arises:

	 	13.3.1	 	The duration of the right of pledge has elapsed;
	 
	 	13.3.2	 	Both parties rescind the pledge of the shares under this Agreement according to the
clause of “Rescission of the Right of Pledge” in this Agreement;
	 
	 	13.3.3	 	The Pledgee and the Pledgor agree after negotiations to terminate this Agreement;
	 
	 	13.3.4	 	The Pledgee unilaterally consents on terminating this Agreement in advance.

	13.4	 	The early termination of this Agreement shall not affect either party’s rights or obligations
accrued under this Agreement prior to the date when this Agreement was early terminated.
	 
	14	 	Dispute Settlement
	 
	14.1	 	Any dispute arising out of interpretation or performance hereof shall be settled through
friendly negotiation between the Parties.
	 
	14.2	 	If such negotiation fails, both Parties shall submit such dispute to China International
Economic and Trade Arbitration Commission for arbitration according its current arbitration
rules. The place of arbitration shall be Beijing, and the language of arbitration shall be
Chinese. The arbitration award shall be final and binding on both Parties.
	 
	14.3	 	The formation, effectiveness, performance and interpretation hereof as well as dispute
settlement shall be governed by the laws of the People’s Republic of China.
	 
	15	 	Miscellaneous
	 
	15.1	 	This Agreement is executed in triplicate, with each Party holding one, one copy for notary,
all of which shall be of the same legal effect.

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	15.2	 	The headings used in this Agreement are for convenience only, and shall not affect the
interpretation of any provision hereof.
	 
	15.3	 	Both Parties may modify and supplement this Agreement through written agreements. Such
written agreement of modification or supplementation executed by both Parties shall constitute
a part of, and be of the same legal effect as, this Agreement.
	 
	15.4	 	If any provision hereunder is held invalid or unenforceable in whole or in part due to
violating laws or regulations or any other reason, the affected part of such provision shall
be deemed deleted from the Agreement. The deletion of such affected part shall not affect the
validity and enforceability of the other parts of such provision or that of other provisions hereof. Both
Parties shall negotiate and enter into new provisions so as to replace such invalid or
unenforceable provision.
	 
	15.5	 	Unless otherwise provided, any Party’s failure or delay in exercising any right, power or
privilege shall not be deemed as a waiver of such right, power or privilege. Any single or
partial exercise of any right, power or privilege shall not preclude exercise of any other
right, power or privilege.
	 
	15.6	 	This Agreement constitutes the entire agreement between the Parties with respect to the
subject matter hereof and supersede any and all previous or simultaneous oral and written
agreements, understandings and communication between the Parties relating to such subject
matter. Unless otherwise expressly provided herein, there shall not be any other express or
implied obligations or undertakings between the Parties.
	 
	15.7	 	This Agreement shall be binding upon both parties and their respective successors and
qualified assignees.
	 
	15.8	 	Any other matters not contemplated hereunder shall be subject to further negotiation between
the Parties.

	 	 	 	 	 	 	 	 	 
	Shareholder	 	 	 	SINA.com Technology
(China) Co., Ltd.	 	 
	 
	 	 	 	 	 	 	 	 
	Handwritten Signature:

	 	/s/
	 	Authorized Representative:
	 	/s/
	 	 
	 

	 	 
	 	 	 	 	 	 

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Share Pledge Agreement

This Share Pledge Agreement is entered into in Haidian District, Beijing between the following
parties on 18 (Day) 08 (Month) 2007 (Year):

Party A: J Wang (hereinafter referred to as the “Pledgor”)

ID No.:

Party B: SINA.com Technology (China) Co., Ltd. (hereinafter referred to as the “Pledgee”)

Address: Room 1506, Ideal Plaza, 58 Bei Si Huan Xi Road, Haidian District, Beijing

Whereas:

	(1)	 	The Pledgor is a shareholder of Beijing Sina Infinity Advertising Co., Ltd. (hereinafter
referred to as “IAD Company”), and owns 20% of IAD Company’s shares;
	 
	(2)	 	All of the Pledgor’s investments in IAD Company were sourced from the loan(s) provided by the
Pledgee to the Pledgor in accordance with an agreement between the Pledgor and the Pledgee
regarding the aforesaid loan(s) (hereinafter referred to as the “Loan Agreement”), the Pledgor
bears RMB 200,000 Yuan of debt to the Pledgee;
	 
	(3)	 	The Pledgor and the Pledgee entered into an Agreement on Authorization to Exercise
Shareholder’s Voting Power (the “Share Rights Agreement”) on 18 (Day) 08 (Month) 2007 (Year), and according to the Share Rights Agreement, in the case that
the Pledgor breaches the Share Rights Agreement, the Pledgor shall pay liquidated damages;
	 
	(4)	 	IAD Company and the Pledgee entered into a “Trademark License Agreement” on 18 (Day) 08 (Month) 2007 (Year), and according to the Trademark License
Agreement, IAD Company shall pay corresponding royalties for trademark licensed by the Pledgee
to IAD Company;
	 
	(5)	 	IAD Company and the Pledgee entered into a “Technical Services Agreement” on 18 (Day) 08 (Month) 2007 (Year), and according to the Technical Service
Agreement, IAD Company shall, as the case may be, pay corresponding technology transfer fee,
technology license fee, technical service fee, equipment assignment fee and/or equipment
rental, etc. to the Pledgee;
	 
	(6)	 	The Pledgor agrees to pledge all of its shares in IAD Company and all other rights relevant
to the said share rights to the Pledgee as a collateral security for the Pledgor to pay off
all debts to the Pledgee and for IAD Company to perform its payment obligation pursuant to the
Trademark License Agreement and the Technical Services Agreement and other relevant
obligations; the Pledgee agrees to accept such security.

Therefore, both parties agree as follows after equal and friendly negotiations:

	1	 	Interpretation and Definitions
	 
	1.1	 	In this Agreement, unless otherwise specified in the context, the following terms shall be
interpreted according to their respective meanings defined in the following clauses.
	 
	1.2	 	Secured Debts: shall mean the following debts:

	 	1.2.1	 	all the principal, interest, overdue interest, liquidated damages, indemnities
which the Pledgor shall pay to the Pledgee under the Loan Agreement, as well as all
expenditures (including the lawyer’s fee) and other amounts paid by the Pledgee for
enforcing its rights under the Loan Agreement when the Pledgor breaches the Agreement;
	 
	 	1.2.2	 	all liquidated damages which the Pledgor shall pay to the Pledgee under the Share
Rights Agreement, the interest of the liquidated damages, the overdue interest, as well
as all expenditures (including the lawyer’s fee) and other amounts paid by the Pledgee
for enforcing its rights under the Share Rights Agreement when the Pledgor breaches the
Share Rights Agreement;
	 
	 	1.2.3	 	all royalties for trademark license, the liquidated damages and other relevant
fees which IAD Company shall pay to the Pledgee under the Trademark License Agreement, as
well as all expenditures (including the lawyer’s fee) and other amounts paid by the
Pledgee for enforcing its rights under the Trademark License Agreement when IAD Company
breaches the Agreement;
	 
	 	1.2.4	 	the technology transfer fee, technology license fee, technical service fee,
equipment assignment fee and/or equipment rental, etc., the liquidated damages and other
relevant fees, which IAD Company shall pay to the Pledgee under the Technical Services

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	 	 	 	Agreement, as well as all expenditures (including the lawyer’s fee) and other amounts
paid by the Pledgee for enforcing its rights under the Technical Services Agreement
when IAD Company breaches the Technical Services Agreement.

	1.3	 	Pledged Rights: shall mean the Pledgor’s shares in IAD Company and all other rights relevant
to such shares. Specifically, the Pledged Rights include but are not limited to the following
rights:

	 	1.3.1	 	all dividends, profit distributions, extra dividends, allocated shares and any
other kind of funds relevant to the Pledged Rights, as well as corresponding rights and
interests, which the Pledgor shall be entitled to receive from IAD Company at present or
in the future;
	 
	 	1.3.2	 	the rights enjoyed by the Pledgor in determining IAD Company’s operational
guidelines, investment plans and other major matters as well as on electing and changing
directors and supervisors, which are corresponding to the Pledged Rights it holds;
	 
	 	1.3.3	 	all interests warranted, confirmed and promised by other parties under IAD
Company’s articles of association and other organizational documents to the Pledgor;
	 
	 	1.3.4	 	the Pledgor’s right of claiming against any party to IAD Company’s articles of
association or any other organizational document for compensation due to any breach;
	 
	 	1.3.5	 	the Pledgor’s right of consenting to or opposing the rescission, amendment or
termination of IAD Company’s articles of association and other organizational documents
due to the Pledged Rights it holds;
	 
	 	1.3.6	 	Other powers and rights relevant to the Pledged Rights, which the Pledgor is
entitled to according to relevant laws and regulations of China as well as IAD Company’s
articles of association and other organizational documents.

	2	 	Pledge of Stock Rights
	 
	2.1	 	The Pledgor warrants that it will, pursuant to the Loan Agreement and the Share Rights
Agreement, pays off relevant debts to the Pledgee, and meanwhile provide guaranty for IAD
Company to perform the payment obligation and other relevant obligations under the Trademark
License Agreement and the Technical Services Agreement. Therefore, the Pledgor agrees to
pledge the Pledged Rights to the Pledgee.
	 
	2.2	 	The Pledgor shall, on the date of execution of this Agreement, submit to the Pledgee the
following documents:

	 	2.2.1	 	the investment certificate issued by IAD Company to the Pledgor evidencing that
the Pledgor lawfully holds the Pledged Stock Rights;
	 
	 	2.2.2	 	the written documents showing that IAD Company’s other shareholders agree with the
Pledgor on establishing the pledge of share rights under this Agreement;
	 
	 	2.2.3	 	all other materials and documents reasonably required by the Pledgee.

	2.3	 	The Pledgor shall deliver the capital contribution certificate to the Pledgee on the date of
effectiveness of this Agreement, and go through the procedures for record of modification of
the share register in IAD Company.
	 
	3	 	Scope of Security
	 
	3.1	 	The scope of security of the Pledged Stock Rights under this Agreement shall cover:

	 	3.1.1	 	the Secured Debts as defined in Article 1.2 of this Agreement;
	 
	 	3.1.2	 	the expenditures paid by the Pledgee for enforcing its right of pledge under this
Agreement.

	4	 	Term of Right of Pledge
	 
	4.1	 	The valid duration of the right of pledge which the Pledgee enjoys under this Agreement shall
commence on the effectiveness date of this Agreement until the three-year anniversary of the
date when the last sum of guaranteed debt is due.
	 
	5	 	Exercise of the Right of Pledge
	 
	5.1	 	In the event that the Pledgor fails to pay off its debts under the Loan Agreement or the
Share Rights Agreement to the Pledgee on time, or IAD Company fails to perform its payment
obligation or other relevant obligations to the Pledgee under the Trademark License Agreement
or the Technical Services Agreement, or the Pledgor breaches its responsibilities or

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	 	 	obligations under this Agreement, the Pledgee shall be entitled to, within a scope permitted
by the applicable laws, exercise the right of pledge at any time it considers appropriate
within the duration of the right of pledge and in a method it considers appropriate. Such
methods shall include but not be limited to:

	 	5.1.1	 	negotiating with the Pledgor on paying off the Secured Debts by transferring to
the Pledgee the Pledged Rights;
	 
	 	5.1.2	 	selling off the Pledged Rights, and paying off the Secured Debts with the proceeds
from the sale;
	 
	 	5.1.3	 	retaining a competent institution to auction total or partial Pledged Rights;
and/or
	 
	 	5.1.4	 	disposing of the Pledged Rights by taking other appropriate measures permitted by
the applicable laws.

	5.2	 	In the process when the Pledgee disposes of the Pledged Rights according to the preceding
paragraph, the Pledgee shall be entitled to:

	 	5.2.1	 	substitute the Pledgor to exercise the powers or rights relevant to the Pledged
Rights as IAD Company’s shareholder;
	 
	 	5.2.2	 	pay necessary money for exercising any power or right imposed by this Agreement or
the law upon the Pledgee;
	 
	 	5.2.3	 	exercise in a way it considers appropriate or permit other person to exercise any
power or right under the Pledged Rights;
	 
	 	5.2.4	 	recover or claim the money payable to the Pledgor arising from the Pledged Rights
for paying off the Secured Debts;
	 
	 	5.2.5	 	with respect to claim by any person for the rights relevant to the Pledged Rights
in any respect, make settlement, reach reconciliation, resort to arbitration or
litigation proceedings or seek any other measures it considers appropriate;
	 
	 	5.2.6	 	take all other actions permitted by law for the purpose of enforcing any of its
rights under this Agreement.

	5.3	 	At the Pledgee’s request, the Pledgor must assist the Pledgee in obtaining all necessary
approvals or consents relevant to the Pledgee’s enforcement of its credit rights and the right
of pledge.
	 
	5.4	 	Within the duration of the right of pledge, the Pledgee shall be entitled to collect the
legal fruits of the Pledged Rights.
	 
	5.5	 	All the money collected by the Pledgee from the exercise of its right of pledge (including
but not limited to the price obtained from disposing of the Pledged Rights and any proceeds
derived from the Pledged Rights) shall be put into use in the following order on the premise
of not violating other clauses of this Agreement:

	 	5.5.1	 	It shall be at first used to pay all the expenses incurred to the Pledgee due to
exercise of the right of pledge and/or other rights under this Agreement;
	 
	 	5.5.2	 	Then, it shall be used by the Pledgee to pay off the Secured Debts according to
law;
	 
	 	5.5.3	 	If there is still remaining amount after the Secured Debts are paid off, the said
amount shall be paid to the Pledgor or the person who is entitled to receive it, with no
interest being paid.

	6	 	Rescission of the Right of Pledge
	 
	6.1	 	If, at any time within the effective duration of the right of pledge, the secured debts are
fully paid off, and the Pledgor no longer bears any obligation or liability under this
Agreement, the Pledgee’s right of pledge under this Agreement shall be extinct on the date
when all the Secured Debts are paid off. In such a case, at the Pledgor’s request, the Pledgee
shall execute the written documents on the pledge of shares created under this Agreement and
deliver them to the Pledgor, or assist the Pledgor in going through other procedures for
rescinding the pledge of shares under this Agreement.
	 
	6.2	 	Unless otherwise prescribed in the preceding paragraph, the pledge of shares under this
Agreement shall not be rescinded without the Pledgee’s prior written consent.
	 
	7	 	Nature of Security
	 
	7.1	 	The guaranty under this Agreement shall not be affected by other guaranties held by the
Pledgee regarding the Secured Debts, and shall not affect the effectiveness of those other

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	 	 	securities, either.
	 
	7.2	 	Neither the security nor the Pledgee’s rights under this Agreement shall be rescinded or
affected due to any of the following circumstances:

	 	7.2.1	 	the Pledgee’s offering a grace period to, rescission or mitigation of any person’s
debts at any time;
	 
	 	7.2.2	 	any amendment, modification or supplement to the Loan Agreement, the Share Rights
Agreement, the Trademark License Agreement and/or the Technical Services Agreement;
	 
	 	7.2.3	 	any disposal, modification or rescission of any other guaranty of the relevant
secured debts;
	 
	 	7.2.4	 	reconciliation reached on the claims raised by any person between the Pledgee and
such person;
	 
	 	7.2.5	 	any delay, act, nonfeasance or mistake arising out of the Pledgee’s exercise of
its rights;
	 
	 	7.2.6	 	any circumstance which the Loan Agreement, the Share Rights Agreement, the
Trademark License Agreement and/or the Technical Services Agreement or the performance
thereof are considered ineffective; or
	 
	 	7.2.7	 	any other event which might otherwise affect the Pledgor’s obligations under this
Agreement.

	8	 	Public Notarial Procedures
	 
	8.1	 	After the effectiveness of this Agreement, the Pledgor shall, at the Pledgee’s request,
cooperate with the Pledgee in going together to lawful public notary office to go through the
notarial procedures as required by this Agreement, and shall provide all necessary cooperation
as per the public notary office’s requirements.
	 
	8.2	 	All expenses incurred from the above mentioned notarial procedures shall be solely borne by
the Pledgee.
	 
	9	 	Special Provisions
	 
	9.1	 	Without the Pledgee’s prior written consent, the Pledgor shall not assign any right it may
enjoy under this Agreement or any obligation it shall bear hereunder to any other party.
	 
	9.2	 	The Pledgee shall be entitled to assign any of its rights or obligations under this Agreement
to any third party at any time without being consented by the Pledgor. In such a case, the
Pledgor shall unconditionally cooperate with the Pledgee in going through relevant procedures
for assignment of the rights and obligations, including but not limited to execution of
relevant agreement on change of contractual parties.
	 
	9.3	 	After the procedures for pledge of the shares under this Agreement are completed, unless the
Pledgee makes a reverse decision and informs the Pledgor, the Pledgor shall be obligated to
continue abiding by the legal provisions concerning the Pledged Rights, performing all rights
and obligations relevant to the Pledged Rights (including but not limited to exercising all
its powers and rights relevant to the Pledged Rights under IAD Company’s articles of
association), and fulfilling the prudence and credibility obligations which a shareholder
shall fulfill.
	 
	9.4	 	The Pledgee shall bear no obligation or legal liability for the Pledged Rights, nor does it
have to perform any obligation that the Pledgor shall bear for the Pledged Rights. Without
prejudice to the Pledgee’s rights under this Agreement, the Pledgee shall bear no obligation
or legal liability to others for the Pledged Rights under this Agreement.
	 
	9.5	 	The Pledgor must timely notify the Pledgee of any event that might affect the Pledged Stock
Rights or the value of the Pledged Stock Rights or might impede the Pledgor from performing
its rights as IAD Company’s shareholder or harm or delay its performing such rights.
	 
	9.6	 	Without the Pledgee’s prior consent, the Pledgor may not conduct any of the following acts:

	 	9.6.1	 	Amending or modifying in any other way IAD Company’s articles of association;
	 
	 	9.6.2	 	Establishing any further guaranty on the Pledged Rights beside the pledge created
under this Agreement;
	 
	 	9.6.3	 	Disposing of any interest of the Pledged Rights in any way;
	 
	 	9.6.4	 	Conducting any act that might harm the Pledgee’s Pledged Rights or any of its
rights

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	 	 	 	under this Agreement.

	9.7	 	Without the Pledgee’s written consent, the Pledgor shall not have the Pledged Rights
transferred or re-pledged, or dispose of the Pledged Rights in any other way which may harm
the right of pledge enjoyed by the Pledgee under this Agreement.
	 
	10	 	Representations, Commitments and Warranties
	 
	10.1	 	The pledgor hereby makes representations, commitments and warranties to the Pledgee as
follows:

	 	10.1.1	 	The Pledgor has lawful eligibility and necessary power to conclude this Agreement and
is able to entirely perform any of its obligations under this Agreement;
	 
	 	10.1.2	 	The Pledgor has lawfully performed its obligation of contributing investments to IAD
Company; is the only holder of the Pledged Rights; and has lawful, complete and full
ownership over all the Pledged Rights under this Agreement;
	 
	 	10.1.3	 	IAD Company’s shareholders’ meeting has adopted a resolution on consenting to the
pledge of shares pursuant to this Agreement;
	 
	 	10.1.4	 	Except the pledge established in this Agreement, the Pledgor has not established or
permitted others to establish any security right on the Pledged Rights without the
Pledgee’s prior written consent; the Pledged Rights are involved in no ownership dispute,
are not distained or limited in other legal proceedings, but may be pledged and
transferred according to the applicable laws;
	 
	 	10.1.5	 	There is neither existing or pending litigation, arbitration or administrative
proceedings against the Pledged Rights and/or the Pledgor nor any such threat;
	 
	 	10.1.6	 	The Pledgor’s execution of this Agreement, exercise of the rights under this Agreement,
or performance of the obligations under this Agreement will not violate any document or
legal provision applicable to the Pledgor or its properties;
	 
	 	10.1.7	 	The pledge created under this Agreement constitutes an effective security of the
secured debts, may be implemented according to its clauses, and shall not be restricted
by any other’s rights, interests or claims at a preferential or equal status;
	 
	 	10.1.8	 	All documents delivered by the Pledgor to the Pledgee and relevant to this Agreement
are authentic, complete and accurate in all substantive aspects, and there is no omission
that might cause any information in such documents to be in any way incorrect or
misleading;
	 
	 	10.1.9	 	This Agreement constitutes lawful, effective and binding obligations to the Pledgor,
and may be subject to compulsory enforcement according to its clauses upon application.

	10.2	 	The Pledgee hereby makes representations, commitments and warranties to the Pledgor:

	 	10.2.1	 	The Pledgee is a lawfully established and validly existing limited liability company,
has the right to conclude this Agreement and is able to perform its obligations under
this Agreement.
	 
	 	10.2.2	 	The Pledgee has obtained all authorizations and consents for executing and performing
this Agreement.

	11	 	Breach Liability
	 
	11.1	 	If Party A or Party B (each, a “Party”) directly or indirectly violates any provision
hereunder or fails to perform or fails to timely and fully perform any of its obligations
hereunder and thus constitutes a breach of this Agreement, the non-defaulting Party (the
“Non-Defaulting Party”) shall have the right to send a written notification requiring the
defaulting Party (the “Defaulting Party”) to make corrections, take adequate, effective and
timely measures to eliminate the effect thus caused, and indemnify the Non-Defaulting Party
any losses suffered from the Defaulting Party’s breach of contract.
	 
	11.2	 	Upon occurrence of any breach of contract, if the Non-Defaulting Party, based on reasonable
and objective judgment, believes that such breach of contract has caused it impossible or
unfair for the Non-Defaulting Party to perform its corresponding obligations hereunder, then
the Non-Defaulting Party may notify the Defaulting Party in writing that it will suspend its
performance of its corresponding obligations hereunder, until the Defaulting Party has stopped

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	 	 	its breach of contract, taken adequate, effective and timely measures to eliminate the effect
thus caused, and indemnified the Non-Defaulting Party any losses suffered from the Defaulting
Party’s breach of contract.
	 
	11.3	 	The Non-Defaulting Party’s losses to be indemnified by the Defaulting Party due to its breach
of contract shall include the direct economic losses suffered by the Non-Defaulting Party due
to the breach of contract and any expectable indirect losses and additional fees and costs,
including but not limited to the lawyer’s fee, legal cost, arbitration cost, financial cost
and travel cost, etc.
	 
	12	 	Force Majeure
	 
	12.1	 	A Force Majeure Event refers to any event uncontrollable, unpredictable, or unavoidable even
predicted by the Parties hereunder, which interferes, affects or delays any Party’s
performance of the whole or part of its obligations hereunder. Such events shall include,
without limitation, the government’s act, acts of God, war, hacker’s attack or any other
similar event.
	 
	12.2	 	Any Party suffering from a Force Majeure Event may suspend its performance of its relevant
obligations hereunder thus prevented, without having to undertake any liability for breach of
contract, until the effect of such Force Majeure Event is eliminated. However, such affected
Party shall try its best to overcome such Force Majeure Event and reduce its adverse effect.
	 
	12.3	 	The Party affected by a Force Majeure Event shall provide the other Party with a legal
certificate issued by the local notary public (or any other competent organ) for certifying
such Force Majeure Event; otherwise, the other Party may request it to undertake breach
liability according to this Agreement.
	 
	13	 	Effectiveness, Amendment and Termination
	 
	13.1	 	This Agreement shall become effective upon the satisfaction of the following conditions:

	 	13.1.1	 	The pledgor and the Pledgee have formally executed this Agreement;
	 
	 	13.1.2	 	The pledge of the shares under this Agreement has been recorded in IAD Company’s
register of shareholders.

	13.2	 	Both parties may, after negotiations, amend this Agreement in the form of a written agreement
at any time.
	 
	13.3	 	This Agreement shall be terminated when any of the following circumstances arises:

	 	13.3.1	 	The duration of the right of pledge has elapsed;
	 
	 	13.3.2	 	Both parties rescind the pledge of the shares under this Agreement according to the
clause of “Rescission of the Right of Pledge” in this Agreement;
	 
	 	13.3.3	 	The Pledgee and the Pledgor agree after negotiations to terminate this Agreement;
	 
	 	13.3.4	 	The Pledgee unilaterally consents on terminating this Agreement in advance.

	13.4	 	The early termination of this Agreement shall not affect either party’s rights or obligations
accrued under this Agreement prior to the date when this Agreement was early terminated.
	 
	14	 	Dispute Settlement
	 
	14.1	 	Any dispute arising out of interpretation or performance hereof shall be settled through
friendly negotiation between the Parties.
	 
	14.2	 	If such negotiation fails, both Parties shall submit such dispute to China International
Economic and Trade Arbitration Commission for arbitration according its current arbitration
rules. The place of arbitration shall be Beijing, and the language of arbitration shall be
Chinese. The arbitration award shall be final and binding on both Parties.
	 
	14.3	 	The formation, effectiveness, performance and interpretation hereof as well as dispute
settlement shall be governed by the laws of the People’s Republic of China.
	 
	15	 	Miscellaneous
	 
	15.1	 	This Agreement is executed in triplicate, with each Party holding one, one copy for notary,
all of which shall be of the same legal effect.
	 
	15.2	 	The headings used in this Agreement are for convenience only, and shall not affect the
interpretation of any provision hereof.

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	15.3	 	Both Parties may modify and supplement this Agreement through written agreements. Such
written agreement of modification or supplementation executed by both Parties shall constitute
a part of, and be of the same legal effect as, this Agreement.
	 
	15.4	 	If any provision hereunder is held invalid or unenforceable in whole or in part due to
violating laws or regulations or any other reason, the affected part of such provision shall
be deemed deleted from the Agreement. The deletion of such affected part shall not affect the
validity and enforceability of the other parts of such provision or that of other provisions
hereof. Both Parties shall negotiate and enter into new provisions so as to replace such
invalid or unenforceable provision.
	 
	15.5	 	Unless otherwise provided, any Party’s failure or delay in exercising any right, power or
privilege shall not be deemed as a waiver of such right, power or privilege. Any single or
partial exercise of any right, power or privilege shall not preclude exercise of any other
right, power or privilege.
	 
	15.6	 	This Agreement constitutes the entire agreement between the Parties with respect to the
subject matter hereof and supersede any and all previous or simultaneous oral and written
agreements, understandings and communication between the Parties relating to such subject
matter. Unless otherwise expressly provided herein, there shall not be any other express or
implied obligations or undertakings between the Parties.
	 
	15.7	 	This Agreement shall be binding upon both parties and their respective successors and
qualified assignees.
	 
	15.8	 	Any other matters not contemplated hereunder shall be subject to further negotiation between
the Parties.

 
	 	 	 	 	 	 	 	 	 
	Shareholder	 	 	 	SINA.com Technology
(China) Co., Ltd.	 	 
	 
	 	 	 	 	 	 	 	 
	Handwritten Signature :

	 	/s/
	 	Authorized Representative :	 	/s/
	 	 
	 

	 	 
	 	 	 	 	 	 

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Share Pledge Agreement

This Share Pledge Agreement is entered into in Haidian District, Beijing between the following
parties on 18 (Day) 08 (Month) 2007 (Year):

Party A: DH Lin (hereinafter referred to as the “Pledgor”)

ID No.:

Party B: SINA.com Technology (China) Co., Ltd. (hereinafter referred to as the “Pledgee”)

Address: Room 1506, Ideal Plaza, 58 Bei Si Huan Xi Road, Haidian District, Beijing

Whereas:

	(1)	 	The Pledgor is a shareholder of Beijing Sina Infinity Advertising Co., Ltd. (hereinafter
referred to as “IAD Company”), and owns 20% of IAD Company’s shares;
	 
	(2)	 	All of the Pledgor’s investments in IAD Company were sourced from the loan(s) provided by the
Pledgee to the Pledgor in accordance with an agreement between the Pledgor and the Pledgee
regarding the aforesaid loan(s) (hereinafter referred to as the “Loan Agreement”), the Pledgor
bears RMB 200,000 Yuan of debt to the Pledgee;
	 
	(3)	 	The Pledgor and the Pledgee entered into an Agreement on Authorization to Exercise
Shareholder’s Voting Power (the “Share Rights Agreement”) on 18 (Day) 08
(Month) 2007 (Year), and according to the Share Rights Agreement, in the case that
the Pledgor breaches the Share Rights Agreement, the Pledgor shall pay liquidated damages;
	 
	(4)	 	IAD Company and the Pledgee entered into a “Trademark License Agreement” on 18
(Day) 08 (Month) 2007 (Year), and according to the Trademark License
Agreement, IAD Company shall pay corresponding royalties for trademark licensed by the Pledgee
to IAD Company;
	 
	(5)	 	IAD Company and the Pledgee entered into a “Technical Services Agreement” on 18
(Day) 08 (Month) 2007 (Year), and according to the Technical Service
Agreement, IAD Company shall, as the case may be, pay corresponding technology transfer fee,
technology license fee, technical service fee, equipment assignment fee and/or equipment
rental, etc. to the Pledgee;
	 
	(6)	 	The Pledgor agrees to pledge all of its shares in IAD Company and all other rights relevant
to the said share rights to the Pledgee as a collateral security for the Pledgor to pay off
all debts to the Pledgee and for IAD Company to perform its payment obligation pursuant to the
Trademark License Agreement and the Technical Services Agreement and other relevant
obligations; the Pledgee agrees to accept such security.

Therefore, both parties agree as follows after equal and friendly negotiations:

	1	 	Interpretation and Definitions
	 
	1.1	 	In this Agreement, unless otherwise specified in the context, the following terms shall be
interpreted according to their respective meanings defined in the following clauses.
	 
	1.2	 	Secured Debts: shall mean the following debts:

	 	1.2.1	 	all the principal, interest, overdue interest, liquidated damages, indemnities
which the Pledgor shall pay to the Pledgee under the Loan Agreement, as well as all
expenditures (including the lawyer’s fee) and other amounts paid by the Pledgee for
enforcing its rights under the Loan Agreement when the Pledgor breaches the Agreement;
	 
	 	1.2.2	 	all liquidated damages which the Pledgor shall pay to the Pledgee under the Share
Rights Agreement, the interest of the liquidated damages, the overdue interest, as well
as all expenditures (including the lawyer’s fee) and other amounts paid by the Pledgee
for enforcing its rights under the Share Rights Agreement when the Pledgor breaches the
Share Rights Agreement;
	 
	 	1.2.3	 	all royalties for trademark license, the liquidated damages and other relevant
fees which IAD Company shall pay to the Pledgee under the Trademark License Agreement, as
well as all expenditures (including the lawyer’s fee) and other amounts paid by the
Pledgee for enforcing its rights under the Trademark License Agreement when IAD Company
breaches the Agreement;
	 
	 	1.2.4	 	the technology transfer fee, technology license fee, technical service fee,
equipment assignment fee and/or equipment rental, etc., the liquidated damages and other
relevant fees, which IAD Company shall pay to the Pledgee under the Technical Services

-1-

 

	 	 	 	Agreement, as well as all expenditures (including the lawyer’s fee) and other amounts paid by
the Pledgee for enforcing its rights under the Technical Services Agreement when IAD
Company breaches the Technical Services Agreement.

	1.3	 	Pledged Rights: shall mean the Pledgor’s shares in IAD Company and all other rights relevant
to such shares. Specifically, the Pledged Rights include but are not limited to the following
rights:

	 	1.3.1	 	all dividends, profit distributions, extra dividends, allocated shares and any
other kind of funds relevant to the Pledged Rights, as well as corresponding rights and
interests, which the Pledgor shall be entitled to receive from IAD Company at present or
in the future;
	 
	 	1.3.2	 	the rights enjoyed by the Pledgor in determining IAD Company’s operational
guidelines, investment plans and other major matters as well as on electing and changing
directors and supervisors, which are corresponding to the Pledged Rights it holds;
	 
	 	1.3.3	 	all interests warranted, confirmed and promised by other parties under IAD
Company’s articles of association and other organizational documents to the Pledgor;
	 
	 	1.3.4	 	the Pledgor’s right of claiming against any party to IAD Company’s articles of
association or any other organizational document for compensation due to any breach;
	 
	 	1.3.5	 	the Pledgor’s right of consenting to or opposing the rescission, amendment or
termination of IAD Company’s articles of association and other organizational documents
due to the Pledged Rights it holds;
	 
	 	1.3.6	 	Other powers and rights relevant to the Pledged Rights, which the Pledgor is
entitled to according to relevant laws and regulations of China as well as IAD Company’s
articles of association and other organizational documents.

	2	 	Pledge of Stock Rights
	 
	2.1	 	The Pledgor warrants that it will, pursuant to the Loan Agreement and the Share Rights
Agreement, pays off relevant debts to the Pledgee, and meanwhile provide guaranty for IAD
Company to perform the payment obligation and other relevant obligations under the Trademark
License Agreement and the Technical Services Agreement. Therefore, the Pledgor agrees to
pledge the Pledged Rights to the Pledgee.
	 
	2.2	 	The Pledgor shall, on the date of execution of this Agreement, submit to the Pledgee the
following documents:

	 	2.2.1	 	the investment certificate issued by IAD Company to the Pledgor evidencing that
the Pledgor lawfully holds the Pledged Stock Rights;
	 
	 	2.2.2	 	the written documents showing that IAD Company’s other shareholders agree with the
Pledgor on establishing the pledge of share rights under this Agreement;
	 
	 	2.2.3	 	all other materials and documents reasonably required by the Pledgee.

	2.3	 	The Pledgor shall deliver the capital contribution certificate to the Pledgee on the date of
effectiveness of this Agreement, and go through the procedures for record of modification of
the share register in IAD Company.

	3	 	Scope of Security
	 
	3.1	 	The scope of security of the Pledged Stock Rights under this Agreement shall cover:

	 	3.1.1	 	the Secured Debts as defined in Article 1.2 of this Agreement;
	 
	 	3.1.2	 	the expenditures paid by the Pledgee for enforcing its right of pledge under this
Agreement.

	4	 	Term of Right of Pledge
	 
	4.1	 	The valid duration of the right of pledge which the Pledgee enjoys under this Agreement shall
commence on the effectiveness date of this Agreement until the three-year anniversary of the
date when the last sum of guaranteed debt is due.
	 
	5	 	Exercise of the Right of Pledge
	 
	5.1	 	In the event that the Pledgor fails to pay off its debts under the Loan Agreement or the
Share Rights Agreement to the Pledgee on time, or IAD Company fails to perform its payment
obligation or other relevant obligations to the Pledgee under the Trademark License Agreement
or the Technical Services Agreement, or the Pledgor breaches its responsibilities or

-2-

 

	 	 	obligations under this Agreement, the Pledgee shall be entitled to, within a scope permitted by the
applicable laws, exercise the right of pledge at any time it considers appropriate within the
duration of the right of pledge and in a method it considers appropriate. Such methods shall
include but not be limited to:

	 	5.1.1	 	negotiating with the Pledgor on paying off the Secured Debts by transferring to
the Pledgee the Pledged Rights;
	 
	 	5.1.2	 	selling off the Pledged Rights, and paying off the Secured Debts with the proceeds
from the sale;
	 
	 	5.1.3	 	retaining a competent institution to auction total or partial Pledged Rights;
and/or
	 
	 	5.1.4	 	disposing of the Pledged Rights by taking other appropriate measures permitted by
the applicable laws.

	5.2	 	In the process when the Pledgee disposes of the Pledged Rights according to the preceding
paragraph, the Pledgee shall be entitled to:

	 	5.2.1	 	substitute the Pledgor to exercise the powers or rights relevant to the Pledged
Rights as IAD Company’s shareholder;
	 
	 	5.2.2	 	pay necessary money for exercising any power or right imposed by this Agreement or
the law upon the Pledgee;
	 
	 	5.2.3	 	exercise in a way it considers appropriate or permit other person to exercise any
power or right under the Pledged Rights;
	 
	 	5.2.4	 	recover or claim the money payable to the Pledgor arising from the Pledged Rights
for paying off the Secured Debts;
	 
	 	5.2.5	 	with respect to claim by any person for the rights relevant to the Pledged Rights
in any respect, make settlement, reach reconciliation, resort to arbitration or
litigation proceedings or seek any other measures it considers appropriate;
	 
	 	5.2.6	 	take all other actions permitted by law for the purpose of enforcing any of its
rights under this Agreement.

	5.3	 	At the Pledgee’s request, the Pledgor must assist the Pledgee in obtaining all necessary
approvals or consents relevant to the Pledgee’s enforcement of its credit rights and the right
of pledge.
	 
	5.4	 	Within the duration of the right of pledge, the Pledgee shall be entitled to collect the
legal fruits of the Pledged Rights.
	 
	5.5	 	All the money collected by the Pledgee from the exercise of its right of pledge (including
but not limited to the price obtained from disposing of the Pledged Rights and any proceeds
derived from the Pledged Rights) shall be put into use in the following order on the premise
of not violating other clauses of this Agreement:

	 	5.5.1	 	It shall be at first used to pay all the expenses incurred to the Pledgee due to
exercise of the right of pledge and/or other rights under this Agreement;
	 
	 	5.5.2	 	Then, it shall be used by the Pledgee to pay off the Secured Debts according to
law;
	 
	 	5.5.3	 	If there is still remaining amount after the Secured Debts are paid off, the said
amount shall be paid to the Pledgor or the person who is entitled to receive it, with no
interest being paid.

	6	 	Rescission of the Right of Pledge
	 
	6.1	 	If, at any time within the effective duration of the right of pledge, the secured debts are
fully paid off, and the Pledgor no longer bears any obligation or liability under this
Agreement, the Pledgee’s right of pledge under this Agreement shall be extinct on the date
when all the Secured Debts are paid off. In such a case, at the Pledgor’s request, the Pledgee
shall execute the written documents on the pledge of shares created under this Agreement and
deliver them to the Pledgor, or assist the Pledgor in going through other procedures for
rescinding the pledge of shares under this Agreement.
	 
	6.2	 	Unless otherwise prescribed in the preceding paragraph, the pledge of shares under this
Agreement shall not be rescinded without the Pledgee’s prior written consent.
	 
	7	 	Nature of Security
	 
	7.1	 	The guaranty under this Agreement shall not be affected by other guaranties held by the
Pledgee regarding the Secured Debts, and shall not affect the effectiveness of those other

-3-

 

	 	 	securities, either.

	7.2	 	Neither the security nor the Pledgee’s rights under this Agreement shall be rescinded or
affected due to any of the following circumstances:

	 	7.2.1	 	the Pledgee’s offering a grace period to, rescission or mitigation of any person’s
debts at any time;
	 
	 	7.2.2	 	any amendment, modification or supplement to the Loan Agreement, the Share Rights
Agreement, the Trademark License Agreement and/or the Technical Services Agreement;
	 
	 	7.2.3	 	any disposal, modification or rescission of any other guaranty of the relevant
secured debts;
	 
	 	7.2.4	 	reconciliation reached on the claims raised by any person between the Pledgee and
such person;
	 
	 	7.2.5	 	any delay, act, nonfeasance or mistake arising out of the Pledgee’s exercise of
its rights;
	 
	 	7.2.6	 	any circumstance which the Loan Agreement, the Share Rights Agreement, the
Trademark License Agreement and/or the Technical Services Agreement or the performance
thereof are considered ineffective; or
	 
	 	7.2.7	 	any other event which might otherwise affect the Pledgor’s obligations under this
Agreement.

	8	 	Public Notarial Procedures
	 
	8.1	 	After the effectiveness of this Agreement, the Pledgor shall, at the Pledgee’s request,
cooperate with the Pledgee in going together to lawful public notary office to go through the
notarial procedures as required by this Agreement, and shall provide all necessary cooperation
as per the public notary office’s requirements.
	 
	8.2	 	All expenses incurred from the above mentioned notarial procedures shall be solely borne by
the Pledgee.
	 
	9	 	Special Provisions
	 
	9.1	 	Without the Pledgee’s prior written consent, the Pledgor shall not assign any right it may
enjoy under this Agreement or any obligation it shall bear hereunder to any other party.
	 
	9.2	 	The Pledgee shall be entitled to assign any of its rights or obligations under this Agreement
to any third party at any time without being consented by the Pledgor. In such a case, the
Pledgor shall unconditionally cooperate with the Pledgee in going through relevant procedures
for assignment of the rights and obligations, including but not limited to execution of
relevant agreement on change of contractual parties.
	 
	9.3	 	After the procedures for pledge of the shares under this Agreement are completed, unless the
Pledgee makes a reverse decision and informs the Pledgor, the Pledgor shall be obligated to
continue abiding by the legal provisions concerning the Pledged Rights, performing all rights
and obligations relevant to the Pledged Rights (including but not limited to exercising all
its powers and rights relevant to the Pledged Rights under IAD Company’s articles of
association), and fulfilling the prudence and credibility obligations which a shareholder
shall fulfill.
	 
	9.4	 	The Pledgee shall bear no obligation or legal liability for the Pledged Rights, nor does it
have to perform any obligation that the Pledgor shall bear for the Pledged Rights. Without
prejudice to the Pledgee’s rights under this Agreement, the Pledgee shall bear no obligation
or legal liability to others for the Pledged Rights under this Agreement.
	 
	9.5	 	The Pledgor must timely notify the Pledgee of any event that might affect the Pledged Stock
Rights or the value of the Pledged Stock Rights or might impede the Pledgor from performing
its rights as IAD Company’s shareholder or harm or delay its performing such rights.
	 
	9.6	 	Without the Pledgee’s prior consent, the Pledgor may not conduct any of the following acts:

	 	9.6.1	 	Amending or modifying in any other way IAD Company’s articles of association;
	 
	 	9.6.2	 	Establishing any further guaranty on the Pledged Rights beside the pledge created
under this Agreement;
	 
	 	9.6.3	 	Disposing of any interest of the Pledged Rights in any way;
	 
	 	9.6.4	 	Conducting any act that might harm the Pledgee’s Pledged Rights or any of its
rights under this Agreement.

-4-

 

	9.7	 	Without the Pledgee’s written consent, the Pledgor shall not have the Pledged Rights
transferred or re-pledged, or dispose of the Pledged Rights in any other way which may harm
the right of pledge enjoyed by the Pledgee under this Agreement.
	 
	10	 	Representations, Commitments and Warranties
	 
	10.1	 	The pledgor hereby makes representations, commitments and warranties to the Pledgee as
follows:

	 	10.1.1	 	The Pledgor has lawful eligibility and necessary power to conclude this Agreement and
is able to entirely perform any of its obligations under this Agreement;
	 
	 	10.1.2	 	The Pledgor has lawfully performed its obligation of contributing investments to IAD
Company; is the only holder of the Pledged Rights; and has lawful, complete and full
ownership over all the Pledged Rights under this Agreement;
	 
	 	10.1.3	 	IAD Company’s shareholders’ meeting has adopted a resolution on consenting to the
pledge of shares pursuant to this Agreement;
	 
	 	10.1.4	 	Except the pledge established in this Agreement, the Pledgor has not established or
permitted others to establish any security right on the Pledged Rights without the
Pledgee’s prior written consent; the Pledged Rights are involved in no ownership dispute,
are not distained or limited in other legal proceedings, but may be pledged and
transferred according to the applicable laws;
	 
	 	10.1.5	 	There is neither existing or pending litigation, arbitration or administrative
proceedings against the Pledged Rights and/or the Pledgor nor any such threat;
	 
	 	10.1.6	 	The Pledgor’s execution of this Agreement, exercise of the rights under this Agreement,
or performance of the obligations under this Agreement will not violate any document or
legal provision applicable to the Pledgor or its properties;
	 
	 	10.1.7	 	The pledge created under this Agreement constitutes an effective security of the
secured debts, may be implemented according to its clauses, and shall not be restricted
by any other’s rights, interests or claims at a preferential or equal status;
	 
	 	10.1.8	 	All documents delivered by the Pledgor to the Pledgee and relevant to this Agreement
are authentic, complete and accurate in all substantive aspects, and there is no omission
that might cause any information in such documents to be in any way incorrect or
misleading;
	 
	 	10.1.9	 	This Agreement constitutes lawful, effective and binding obligations to the Pledgor,
and may be subject to compulsory enforcement according to its clauses upon application.

	10.2	 	The Pledgee hereby makes representations, commitments and warranties to the Pledgor:

	 	10.2.1	 	The Pledgee is a lawfully established and validly existing limited liability company,
has the right to conclude this Agreement and is able to perform its obligations under
this Agreement.
	 
	 	10.2.2	 	The Pledgee has obtained all authorizations and consents for executing and performing
this Agreement.

	11	 	Breach Liability
	 
	11.1	 	If Party A or Party B (each, a “Party”) directly or indirectly violates any provision
hereunder or fails to perform or fails to timely and fully perform any of its obligations
hereunder and thus constitutes a breach of this Agreement, the non-defaulting Party (the
“Non-Defaulting Party”) shall have the right to send a written notification requiring the
defaulting Party (the “Defaulting Party”) to make corrections, take adequate, effective and
timely measures to eliminate the effect thus caused, and indemnify the Non-Defaulting Party
any losses suffered from the Defaulting Party’s breach of contract.
	 
	11.2	 	Upon occurrence of any breach of contract, if the Non-Defaulting Party, based on reasonable
and objective judgment, believes that such breach of contract has caused it impossible or
unfair for the Non-Defaulting Party to perform its corresponding obligations hereunder, then
the Non-Defaulting Party may notify the Defaulting Party in writing that it will suspend its
performance of its corresponding obligations hereunder, until the Defaulting Party has stopped

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	 	 	its breach of contract, taken adequate, effective and timely measures to eliminate the effect
thus caused, and indemnified the Non-Defaulting Party any losses suffered from the Defaulting
Party’s breach of contract.

	11.3	 	The Non-Defaulting Party’s losses to be indemnified by the Defaulting Party due to its breach
of contract shall include the direct economic losses suffered by the Non-Defaulting Party due
to the breach of contract and any expectable indirect losses and additional fees and costs,
including but not limited to the lawyer’s fee, legal cost, arbitration cost, financial cost
and travel cost, etc.
	 
	12	 	Force Majeure
	 
	12.1	 	A Force Majeure Event refers to any event uncontrollable, unpredictable, or unavoidable even
predicted by the Parties hereunder, which interferes, affects or delays any Party’s
performance of the whole or part of its obligations hereunder. Such events shall include,
without limitation, the government’s act, acts of God, war, hacker’s attack or any other
similar event.
	 
	12.2	 	Any Party suffering from a Force Majeure Event may suspend its performance of its relevant
obligations hereunder thus prevented, without having to undertake any liability for breach of
contract, until the effect of such Force Majeure Event is eliminated. However, such affected
Party shall try its best to overcome such Force Majeure Event and reduce its adverse effect.
	 
	12.3	 	The Party affected by a Force Majeure Event shall provide the other Party with a legal
certificate issued by the local notary public (or any other competent organ) for certifying
such Force Majeure Event; otherwise, the other Party may request it to undertake breach
liability according to this Agreement.
	 
	13	 	Effectiveness, Amendment and Termination
	 
	13.1	 	This Agreement shall become effective upon the satisfaction of the following conditions:

	 	13.1.1	 	The pledgor and the Pledgee have formally executed this Agreement;
	 
	 	13.1.2	 	The pledge of the shares under this Agreement has been recorded in IAD Company’s
register of shareholders.

	13.2	 	Both parties may, after negotiations, amend this Agreement in the form of a written agreement
at any time.
	 
	13.3	 	This Agreement shall be terminated when any of the following circumstances arises:

	 	13.3.1	 	The duration of the right of pledge has elapsed;
	 
	 	13.3.2	 	Both parties rescind the pledge of the shares under this Agreement according to the
clause of “Rescission of the Right of Pledge” in this Agreement;
	 
	 	13.3.3	 	The Pledgee and the Pledgor agree after negotiations to terminate this Agreement;
	 
	 	13.3.4	 	The Pledgee unilaterally consents on terminating this Agreement in advance.

	13.4	 	The early termination of this Agreement shall not affect either party’s rights or obligations
accrued under this Agreement prior to the date when this Agreement was early terminated.
	 
	14	 	Dispute Settlement
	 
	14.1	 	Any dispute arising out of interpretation or performance hereof shall be settled through
friendly negotiation between the Parties.
	 
	14.2	 	If such negotiation fails, both Parties shall submit such dispute to China International
Economic and Trade Arbitration Commission for arbitration according its current arbitration
rules. The place of arbitration shall be Beijing, and the language of arbitration shall be
Chinese. The arbitration award shall be final and binding on both Parties.
	 
	14.3	 	The formation, effectiveness, performance and interpretation hereof as well as dispute
settlement shall be governed by the laws of the People’s Republic of China.
	 
	15	 	Miscellaneous
	 
	15.1	 	This Agreement is executed in triplicate, with each Party holding one, one copy for notary,
all of which shall be of the same legal effect.

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	15.2	 	The headings used in this Agreement are for convenience only, and shall not affect the
interpretation of any provision hereof.
	 
	15.3	 	Both Parties may modify and supplement this Agreement through written agreements. Such
written agreement of modification or supplementation executed by both Parties shall constitute
a part of, and be of the same legal effect as, this Agreement.
	 
	15.4	 	If any provision hereunder is held invalid or unenforceable in whole or in part due to
violating laws or regulations or any other reason, the affected part of such provision shall
be deemed deleted from the Agreement. The deletion of such affected part shall not affect the
validity and enforceability of the other parts of such provision or that of other provisions
hereof. Both Parties shall negotiate and enter into new provisions so as to replace such
invalid or unenforceable provision.
	 
	15.5	 	Unless otherwise provided, any Party’s failure or delay in exercising any right, power or
privilege shall not be deemed as a waiver of such right, power or privilege. Any single or
partial exercise of any right, power or privilege shall not preclude exercise of any other
right, power or privilege.
	 
	15.6	 	This Agreement constitutes the entire agreement between the Parties with respect to the
subject matter hereof and supersede any and all previous or simultaneous oral and written
agreements, understandings and communication between the Parties relating to such subject
matter. Unless otherwise expressly provided herein, there shall not be any other express or
implied obligations or undertakings between the Parties.
	 
	15.7	 	This Agreement shall be binding upon both parties and their respective successors and
qualified assignees.
	 
	15.8	 	Any other matters not contemplated hereunder shall be subject to further negotiation between
the Parties.

	 	 	 	 	 	 	 	 	 
	Shareholder	 	 	 	SINA.com Technology (China) Co., Ltd.	 	 
	 
	 	 	 	 	 	 	 	 
	Handwritten Signature:

	 	/s/
	 	Authorized Representative:
	 	/s/
	 	 
	 

	 	 
	 	 	 	 	 	 

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Share Pledge Agreement

This Share Pledge Agreement is entered into in Haidian District, Beijing between the following
parties on 18 (Day) 08 (Month) 2007 (Year):

Party A: T Chen (hereinafter referred to as the “Pledgor”)

ID No.:

Party B: SINA.com Technology (China) Co., Ltd. (hereinafter referred to as the “Pledgee”)

Address: Room 1506, Ideal Plaza, 58 Bei Si Huan Xi Road, Haidian District, Beijing

Whereas:

	(1)	 	The Pledgor is a shareholder of Beijing Sina Infinity Advertising Co., Ltd. (hereinafter
referred to as “IAD Company”), and owns 20% of IAD Company’s shares;
	 
	(2)	 	All of the Pledgor’s investments in IAD Company were sourced from the loan(s) provided by the
Pledgee to the Pledgor in accordance with an agreement between the Pledgor and the Pledgee
regarding the aforesaid loan(s) (hereinafter referred to as the “Loan Agreement”), the Pledgor
bears RMB 200,000 Yuan of debt to the Pledgee;
	 
	(3)	 	The Pledgor and the Pledgee entered into an Agreement on Authorization to Exercise
Shareholder’s Voting Power (the “Share Rights Agreement”) on 18 (Day) 08
(Month) 2007 (Year), and according to the Share Rights Agreement, in the case that
the Pledgor breaches the Share Rights Agreement, the Pledgor shall pay liquidated damages;
	 
	(4)	 	IAD Company and the Pledgee entered into a “Trademark License Agreement” on 18
(Day) 08 (Month) 2007 (Year), and according to the Trademark License
Agreement, IAD Company shall pay corresponding royalties for trademark licensed by the Pledgee
to IAD Company;
	 
	(5)	 	IAD Company and the Pledgee entered into a “Technical Services Agreement” on 18
(Day) 08 (Month) 2007 (Year), and according to the Technical Service
Agreement, IAD Company shall, as the case may be, pay corresponding technology transfer fee,
technology license fee, technical service fee, equipment assignment fee and/or equipment
rental, etc. to the Pledgee;
	 
	(6)	 	The Pledgor agrees to pledge all of its shares in IAD Company and all other rights relevant
to the said share rights to the Pledgee as a collateral security for the Pledgor to pay off
all debts to the Pledgee and for IAD Company to perform its payment obligation pursuant to the
Trademark License Agreement and the Technical Services Agreement and other relevant
obligations; the Pledgee agrees to accept such security.

Therefore, both parties agree as follows after equal and friendly negotiations:

	1	 	Interpretation and Definitions
	 
	1.1	 	In this Agreement, unless otherwise specified in the context, the following terms shall be
interpreted according to their respective meanings defined in the following clauses.
	 
	1.2	 	Secured Debts: shall mean the following debts:

	 	1.2.1	 	all the principal, interest, overdue interest, liquidated damages, indemnities
which the Pledgor shall pay to the Pledgee under the Loan Agreement, as well as all
expenditures (including the lawyer’s fee) and other amounts paid by the Pledgee for
enforcing its rights under the Loan Agreement when the Pledgor breaches the Agreement;
	 
	 	1.2.2	 	all liquidated damages which the Pledgor shall pay to the Pledgee under the Share
Rights Agreement, the interest of the liquidated damages, the overdue interest, as well
as all expenditures (including the lawyer’s fee) and other amounts paid by the Pledgee
for enforcing its rights under the Share Rights Agreement when the Pledgor breaches the
Share Rights Agreement;
	 
	 	1.2.3	 	all royalties for trademark license, the liquidated damages and other relevant
fees which IAD Company shall pay to the Pledgee under the Trademark License Agreement, as
well as all expenditures (including the lawyer’s fee) and other amounts paid by the
Pledgee for enforcing its rights under the Trademark License Agreement when IAD Company
breaches the Agreement;
	 
	 	1.2.4	 	the technology transfer fee, technology license fee, technical service fee,
equipment assignment fee and/or equipment rental, etc., the liquidated damages and other
relevant fees, which IAD Company shall pay to the Pledgee under the Technical Services

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	 	 	 	Agreement, as well as all expenditures (including the lawyer’s fee) and other amounts paid by
the Pledgee for enforcing its rights under the Technical Services Agreement when IAD
Company breaches the Technical Services Agreement.

	1.3	 	Pledged Rights: shall mean the Pledgor’s shares in IAD Company and all other rights relevant
to such shares. Specifically, the Pledged Rights include but are not limited to the following
rights:

	 	1.3.1	 	all dividends, profit distributions, extra dividends, allocated shares and any
other kind of funds relevant to the Pledged Rights, as well as corresponding rights and
interests, which the Pledgor shall be entitled to receive from IAD Company at present or
in the future;
	 
	 	1.3.2	 	the rights enjoyed by the Pledgor in determining IAD Company’s operational
guidelines, investment plans and other major matters as well as on electing and changing
directors and supervisors, which are corresponding to the Pledged Rights it holds;
	 
	 	1.3.3	 	all interests warranted, confirmed and promised by other parties under IAD
Company’s articles of association and other organizational documents to the Pledgor;
	 
	 	1.3.4	 	the Pledgor’s right of claiming against any party to IAD Company’s articles of
association or any other organizational document for compensation due to any breach;
	 
	 	1.3.5	 	the Pledgor’s right of consenting to or opposing the rescission, amendment or
termination of IAD Company’s articles of association and other organizational documents
due to the Pledged Rights it holds;
	 
	 	1.3.6	 	Other powers and rights relevant to the Pledged Rights, which the Pledgor is
entitled to according to relevant laws and regulations of China as well as IAD Company’s
articles of association and other organizational documents.

	2	 	Pledge of Stock Rights
	 
	2.1	 	The Pledgor warrants that it will, pursuant to the Loan Agreement and the Share Rights
Agreement, pays off relevant debts to the Pledgee, and meanwhile provide guaranty for IAD
Company to perform the payment obligation and other relevant obligations under the Trademark
License Agreement and the Technical Services Agreement. Therefore, the Pledgor agrees to
pledge the Pledged Rights to the Pledgee.
	 
	2.2	 	The Pledgor shall, on the date of execution of this Agreement, submit to the Pledgee the
following documents:

	 	2.2.1	 	the investment certificate issued by IAD Company to the Pledgor evidencing that
the Pledgor lawfully holds the Pledged Stock Rights;
	 
	 	2.2.2	 	the written documents showing that IAD Company’s other shareholders agree with the
Pledgor on establishing the pledge of share rights under this Agreement;
	 
	 	2.2.3	 	all other materials and documents reasonably required by the Pledgee.

	2.3	 	The Pledgor shall deliver the capital contribution certificate to the Pledgee on the date of
effectiveness of this Agreement, and go through the procedures for record of modification of
the share register in IAD Company.
	 
	3	 	Scope of Security
	 
	3.1	 	The scope of security of the Pledged Stock Rights under this Agreement shall cover:

	 	3.1.1	 	the Secured Debts as defined in Article 1.2 of this Agreement;
	 
	 	3.1.2	 	the expenditures paid by the Pledgee for enforcing its right of pledge under this
Agreement.

	4	 	Term of Right of Pledge
	 
	4.1	 	The valid duration of the right of pledge which the Pledgee enjoys under this Agreement shall
commence on the effectiveness date of this Agreement until the three-year anniversary of the
date when the last sum of guaranteed debt is due.
	 
	5	 	Exercise of the Right of Pledge
	 
	5.1	 	In the event that the Pledgor fails to pay off its debts under the Loan Agreement or the
Share Rights Agreement to the Pledgee on time, or IAD Company fails to perform its payment
obligation or other relevant obligations to the Pledgee under the Trademark License Agreement
or the Technical Services Agreement, or the Pledgor breaches its responsibilities or

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	 	 	obligations under this Agreement, the Pledgee shall be entitled to, within a scope permitted by the
applicable laws, exercise the right of pledge at any time it considers appropriate within the
duration of the right of pledge and in a method it considers appropriate. Such methods shall
include but not be limited to:

	 	5.1.1	 	negotiating with the Pledgor on paying off the Secured Debts by transferring to
the Pledgee the Pledged Rights;
	 
	 	5.1.2	 	selling off the Pledged Rights, and paying off the Secured Debts with the proceeds
from the sale;
	 
	 	5.1.3	 	retaining a competent institution to auction total or partial Pledged Rights;
and/or
	 
	 	5.1.4	 	disposing of the Pledged Rights by taking other appropriate measures permitted by
the applicable laws.

	5.2	 	In the process when the Pledgee disposes of the Pledged Rights according to the preceding
paragraph, the Pledgee shall be entitled to:

	5.2.1	 	substitute the Pledgor to exercise the powers or rights relevant to the Pledged
Rights as IAD Company’s shareholder;

	 	5.2.2	 	pay necessary money for exercising any power or right imposed by this Agreement or
the law upon the Pledgee;
	 
	 	5.2.3	 	exercise in a way it considers appropriate or permit other person to exercise any
power or right under the Pledged Rights;
	 
	 	5.2.4	 	recover or claim the money payable to the Pledgor arising from the Pledged Rights
for paying off the Secured Debts;
	 
	 	5.2.5	 	with respect to claim by any person for the rights relevant to the Pledged Rights
in any respect, make settlement, reach reconciliation, resort to arbitration or
litigation proceedings or seek any other measures it considers appropriate;
	 
	 	5.2.6	 	take all other actions permitted by law for the purpose of enforcing any of its
rights under this Agreement.

	5.3	 	At the Pledgee’s request, the Pledgor must assist the Pledgee in obtaining all necessary
approvals or consents relevant to the Pledgee’s enforcement of its credit rights and the right
of pledge.
	 
	5.4	 	Within the duration of the right of pledge, the Pledgee shall be entitled to collect the
legal fruits of the Pledged Rights.
	 
	5.5	 	All the money collected by the Pledgee from the exercise of its right of pledge (including
but not limited to the price obtained from disposing of the Pledged Rights and any proceeds
derived from the Pledged Rights) shall be put into use in the following order on the premise
of not violating other clauses of this Agreement:

	 	5.5.1	 	It shall be at first used to pay all the expenses incurred to the Pledgee due to
exercise of the right of pledge and/or other rights under this Agreement;
	 
	 	5.5.2	 	Then, it shall be used by the Pledgee to pay off the Secured Debts according to
law;
	 
	 	5.5.3	 	If there is still remaining amount after the Secured Debts are paid off, the said
amount shall be paid to the Pledgor or the person who is entitled to receive it, with no
interest being paid.

	6	 	Rescission of the Right of Pledge
	 
	6.1	 	If, at any time within the effective duration of the right of pledge, the secured debts are
fully paid off, and the Pledgor no longer bears any obligation or liability under this
Agreement, the Pledgee’s right of pledge under this Agreement shall be extinct on the date
when all the Secured Debts are paid off. In such a case, at the Pledgor’s request, the Pledgee
shall execute the written documents on the pledge of shares created under this Agreement and
deliver them to the Pledgor, or assist the Pledgor in going through other procedures for
rescinding the pledge of shares under this Agreement.
	 
	6.2	 	Unless otherwise prescribed in the preceding paragraph, the pledge of shares under this
Agreement shall not be rescinded without the Pledgee’s prior written consent.
	 
	7	 	Nature of Security
	 
	7.1	 	The guaranty under this Agreement shall not be affected by other guaranties held by the
Pledgee regarding the Secured Debts, and shall not affect the effectiveness of those other

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	 	 	securities, either.

	7.2	 	Neither the security nor the Pledgee’s rights under this Agreement shall be rescinded or
affected due to any of the following circumstances:

	 	7.2.1	 	the Pledgee’s offering a grace period to, rescission or mitigation of any person’s
debts at any time;
	 
	 	7.2.2	 	any amendment, modification or supplement to the Loan Agreement, the Share Rights
Agreement, the Trademark License Agreement and/or the Technical Services Agreement;
	 
	 	7.2.3	 	any disposal, modification or rescission of any other guaranty of the relevant
secured debts;
	 
	 	7.2.4	 	reconciliation reached on the claims raised by any person between the Pledgee and
such person;
	 
	 	7.2.5	 	any delay, act, nonfeasance or mistake arising out of the Pledgee’s exercise of
its rights;
	 
	 	7.2.6	 	any circumstance which the Loan Agreement, the Share Rights Agreement, the
Trademark License Agreement and/or the Technical Services Agreement or the performance
thereof are considered ineffective; or
	 
	 	7.2.7	 	any other event which might otherwise affect the Pledgor’s obligations under this
Agreement.

	8	 	Public Notarial Procedures
	 
	8.1	 	After the effectiveness of this Agreement, the Pledgor shall, at the Pledgee’s request,
cooperate with the Pledgee in going together to lawful public notary office to go through the
notarial procedures as required by this Agreement, and shall provide all necessary cooperation
as per the public notary office’s requirements.
	 
	8.2	 	All expenses incurred from the above mentioned notarial procedures shall be solely borne by
the Pledgee.
	 
	9	 	Special Provisions
	 
	9.1	 	Without the Pledgee’s prior written consent, the Pledgor shall not assign any right it may
enjoy under this Agreement or any obligation it shall bear hereunder to any other party.
	 
	9.2	 	The Pledgee shall be entitled to assign any of its rights or obligations under this Agreement
to any third party at any time without being consented by the Pledgor. In such a case, the
Pledgor shall unconditionally cooperate with the Pledgee in going through relevant procedures
for assignment of the rights and obligations, including but not limited to execution of
relevant agreement on change of contractual parties.
	 
	9.3	 	After the procedures for pledge of the shares under this Agreement are completed, unless the
Pledgee makes a reverse decision and informs the Pledgor, the Pledgor shall be obligated to
continue abiding by the legal provisions concerning the Pledged Rights, performing all rights
and obligations relevant to the Pledged Rights (including but not limited to exercising all
its powers and rights relevant to the Pledged Rights under IAD Company’s articles of
association), and fulfilling the prudence and credibility obligations which a shareholder
shall fulfill.
	 
	9.4	 	The Pledgee shall bear no obligation or legal liability for the Pledged Rights, nor does it
have to perform any obligation that the Pledgor shall bear for the Pledged Rights. Without
prejudice to the Pledgee’s rights under this Agreement, the Pledgee shall bear no obligation
or legal liability to others for the Pledged Rights under this Agreement.
	 
	9.5	 	The Pledgor must timely notify the Pledgee of any event that might affect the Pledged Stock
Rights or the value of the Pledged Stock Rights or might impede the Pledgor from performing
its rights as IAD Company’s shareholder or harm or delay its performing such rights.
	 
	9.6	 	Without the Pledgee’s prior consent, the Pledgor may not conduct any of the following acts:

	 	9.6.1	 	Amending or modifying in any other way IAD Company’s articles of association;
	 
	 	9.6.2	 	Establishing any further guaranty on the Pledged Rights beside the pledge created
under this Agreement;
	 
	 	9.6.3	 	Disposing of any interest of the Pledged Rights in any way;
	 
	 	9.6.4	 	Conducting any act that might harm the Pledgee’s Pledged Rights or any of its
rights under this Agreement.

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	9.7	 	Without the Pledgee’s written consent, the Pledgor shall not have the Pledged Rights
transferred or re-pledged, or dispose of the Pledged Rights in any other way which may harm
the right of pledge enjoyed by the Pledgee under this Agreement.
	 
	10	 	Representations, Commitments and Warranties
	 
	10.1	 	The pledgor hereby makes representations, commitments and warranties to the Pledgee as
follows:

	 	10.1.1	 	The Pledgor has lawful eligibility and necessary power to conclude this Agreement and
is able to entirely perform any of its obligations under this Agreement;
	 
	 	10.1.2	 	The Pledgor has lawfully performed its obligation of contributing investments to IAD
Company; is the only holder of the Pledged Rights; and has lawful, complete and full
ownership over all the Pledged Rights under this Agreement;
	 
	 	10.1.3	 	IAD Company’s shareholders’ meeting has adopted a resolution on consenting to the
pledge of shares pursuant to this Agreement;
	 
	 	10.1.4	 	Except the pledge established in this Agreement, the Pledgor has not established or
permitted others to establish any security right on the Pledged Rights without the
Pledgee’s prior written consent; the Pledged Rights are involved in no ownership dispute,
are not distained or limited in other legal proceedings, but may be pledged and
transferred according to the applicable laws;
	 
	 	10.1.5	 	There is neither existing or pending litigation, arbitration or administrative
proceedings against the Pledged Rights and/or the Pledgor nor any such threat;
	 
	 	10.1.6	 	The Pledgor’s execution of this Agreement, exercise of the rights under this Agreement,
or performance of the obligations under this Agreement will not violate any document or
legal provision applicable to the Pledgor or its properties;
	 
	 	10.1.7	 	The pledge created under this Agreement constitutes an effective security of the
secured debts, may be implemented according to its clauses, and shall not be restricted
by any other’s rights, interests or claims at a preferential or equal status;
	 
	 	10.1.8	 	All documents delivered by the Pledgor to the Pledgee and relevant to this Agreement
are authentic, complete and accurate in all substantive aspects, and there is no omission
that might cause any information in such documents to be in any way incorrect or
misleading;
	 
	 	10.1.9	 	This Agreement constitutes lawful, effective and binding obligations to the Pledgor,
and may be subject to compulsory enforcement according to its clauses upon application.

	10.2	 	The Pledgee hereby makes representations, commitments and warranties to the Pledgor:

	 	10.2.1	 	The Pledgee is a lawfully established and validly existing limited liability company,
has the right to conclude this Agreement and is able to perform its obligations under
this Agreement.
	 
	 	10.2.2	 	The Pledgee has obtained all authorizations and consents for executing and performing
this Agreement.

	11	 	Breach Liability
	 
	11.1	 	If Party A or Party B (each, a “Party”) directly or indirectly violates any provision
hereunder or fails to perform or fails to timely and fully perform any of its obligations
hereunder and thus constitutes a breach of this Agreement, the non-defaulting Party (the
“Non-Defaulting Party”) shall have the right to send a written notification requiring the
defaulting Party (the “Defaulting Party”) to make corrections, take adequate, effective and
timely measures to eliminate the effect thus caused, and indemnify the Non-Defaulting Party
any losses suffered from the Defaulting Party’s breach of contract.
	 
	11.2	 	Upon occurrence of any breach of contract, if the Non-Defaulting Party, based on reasonable
and objective judgment, believes that such breach of contract has caused it impossible or
unfair for the Non-Defaulting Party to perform its corresponding obligations hereunder, then
the Non-Defaulting Party may notify the Defaulting Party in writing that it will suspend its
performance of its corresponding obligations hereunder, until the Defaulting Party has stopped

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	 	 	its breach of contract, taken adequate, effective and timely measures to eliminate the effect
thus caused, and indemnified the Non-Defaulting Party any losses suffered from the Defaulting
Party’s breach of contract.

	11.3	 	The Non-Defaulting Party’s losses to be indemnified by the Defaulting Party due to its breach
of contract shall include the direct economic losses suffered by the Non-Defaulting Party due
to the breach of contract and any expectable indirect losses and additional fees and costs,
including but not limited to the lawyer’s fee, legal cost, arbitration cost, financial cost
and travel cost, etc.
	 
	12	 	Force Majeure
	 
	12.1	 	A Force Majeure Event refers to any event uncontrollable, unpredictable, or unavoidable even
predicted by the Parties hereunder, which interferes, affects or delays any Party’s
performance of the whole or part of its obligations hereunder. Such events shall include,
without limitation, the government’s act, acts of God, war, hacker’s attack or any other
similar event.
	 
	12.2	 	Any Party suffering from a Force Majeure Event may suspend its performance of its relevant
obligations hereunder thus prevented, without having to undertake any liability for breach of
contract, until the effect of such Force Majeure Event is eliminated. However, such affected
Party shall try its best to overcome such Force Majeure Event and reduce its adverse effect.
	 
	12.3	 	The Party affected by a Force Majeure Event shall provide the other Party with a legal
certificate issued by the local notary public (or any other competent organ) for certifying
such Force Majeure Event; otherwise, the other Party may request it to undertake breach
liability according to this Agreement.
	 
	13	 	Effectiveness, Amendment and Termination
	 
	13.1	 	This Agreement shall become effective upon the satisfaction of the following conditions:

	 	13.1.1	 	The pledgor and the Pledgee have formally executed this Agreement;
	 
	 	13.1.2	 	The pledge of the shares under this Agreement has been recorded in IAD Company’s
register of shareholders.

	13.2	 	Both parties may, after negotiations, amend this Agreement in the form of a written agreement
at any time.
	 
	13.3	 	This Agreement shall be terminated when any of the following circumstances arises:

	 	13.3.1	 	The duration of the right of pledge has elapsed;
	 
	 	13.3.2	 	Both parties rescind the pledge of the shares under this Agreement according to the
clause of “Rescission of the Right of Pledge” in this Agreement;
	 
	 	13.3.3	 	The Pledgee and the Pledgor agree after negotiations to terminate this Agreement;
	 
	 	13.3.4	 	The Pledgee unilaterally consents on terminating this Agreement in advance.

	13.4	 	The early termination of this Agreement shall not affect either party’s rights or obligations
accrued under this Agreement prior to the date when this Agreement was early terminated.
	 
	14	 	Dispute Settlement
	 
	14.1	 	Any dispute arising out of interpretation or performance hereof shall be settled through
friendly negotiation between the Parties.
	 
	14.2	 	If such negotiation fails, both Parties shall submit such dispute to China International
Economic and Trade Arbitration Commission for arbitration according its current arbitration
rules. The place of arbitration shall be Beijing, and the language of arbitration shall be
Chinese. The arbitration award shall be final and binding on both Parties.
	 
	14.3	 	The formation, effectiveness, performance and interpretation hereof as well as dispute
settlement shall be governed by the laws of the People’s Republic of China.
	 
	15	 	Miscellaneous
	 
	15.1	 	This Agreement is executed in triplicate, with each Party holding one, one copy for notary,
all of which shall be of the same legal effect.

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	15.2	 	The headings used in this Agreement are for convenience only, and shall not affect the
interpretation of any provision hereof.
	 
	15.3	 	Both Parties may modify and supplement this Agreement through written agreements. Such
written agreement of modification or supplementation executed by both Parties shall constitute
a part of, and be of the same legal effect as, this Agreement.
	 
	15.4	 	If any provision hereunder is held invalid or unenforceable in whole or in part due to
violating laws or regulations or any other reason, the affected part of such provision shall
be deemed deleted from the Agreement. The deletion of such affected part shall not affect the
validity and enforceability of the other parts of such provision or that of other provisions
hereof. Both Parties shall negotiate and enter into new provisions so as to replace such
invalid or unenforceable provision.
	 
	15.5	 	Unless otherwise provided, any Party’s failure or delay in exercising any right, power or
privilege shall not be deemed as a waiver of such right, power or privilege. Any single or
partial exercise of any right, power or privilege shall not preclude exercise of any other
right, power or privilege.
	 
	15.6	 	This Agreement constitutes the entire agreement between the Parties with respect to the
subject matter hereof and supersede any and all previous or simultaneous oral and written
agreements, understandings and communication between the Parties relating to such subject
matter. Unless otherwise expressly provided herein, there shall not be any other express or
implied obligations or undertakings between the Parties.
	 
	15.7	 	This Agreement shall be binding upon both parties and their respective successors and
qualified assignees.
	 
	15.8	 	Any other matters not contemplated hereunder shall be subject to further negotiation between
the Parties.

	 	 	 	 	 	 	 	 	 
	Shareholder	 	 	 	SINA.com Technology (China) Co., Ltd.	 	 
	 
	 	 	 	 	 	 	 	 
	Handwritten Signature: 

	 	/s/
	 	Authorized Representative: 
	 	/s/
	 	 
	 

	 	 
	 	 	 	 	 	 

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Share Pledge Agreement

This Share Pledge Agreement is entered into in Haidian District, Beijing between the following
parties on 18 (Day) 08 (Month) 2007 (Year):

Party A: Y Wang (hereinafter referred to as the “Pledgor”)

ID No.:

Party B: SINA.com Technology (China) Co., Ltd. (hereinafter referred to as the “Pledgee”)

Address: Room 1506, Ideal Plaza, 58 Bei Si Huan Xi Road, Haidian District, Beijing

Whereas:

	(1)	 	The Pledgor is a shareholder of Beijing Sina Internet Information Service Co., Ltd.
(hereinafter referred to as “ICP Company”), and owns 1.5% of ICP Company’s shares;
	 
	(2)	 	All of the Pledgor’s investments in ICP Company were sourced from the loan(s) provided by the
Pledgee to the Pledgor in accordance with an agreement between the Pledgor and the Pledgee
regarding the aforesaid loan(s) (hereinafter referred to as the “Loan Agreement”), the Pledgor
bears RMB 300,000 Yuan of debt to the Pledgee;
	 
	(3)	 	The Pledgor and the Pledgee entered into an Agreement on Authorization to Exercise
Shareholder’s Voting Power (the “Share Rights Agreement”) on 18 (Day) 08 (Month) 2007 (Year), and according to the Share Rights Agreement, in the case that
the Pledgor breaches the Share Rights Agreement, the Pledgor shall pay liquidated damages;
	 
	(4)	 	ICP Company and the Pledgee entered into a “Trademark License Agreement” on 18 (Day) 08 (Month) 2007 (Year), and according to the Trademark License
Agreement, ICP Company shall pay corresponding royalties for trademark licensed by the Pledgee
to ICP Company;
	 
	(5)	 	ICP Company and the Pledgee entered into a “Technical
Services Agreement” on 18 (Day) 08 (Month) 2007 (Year), and according to the Technical Service
Agreement, ICP Company shall, as the case may be, pay corresponding technology transfer fee,
technology license fee, technical service fee, equipment assignment fee and/or equipment
rental, etc. to the Pledgee;
	 
	(6)	 	The Pledgor agrees to pledge all of its shares in ICP Company and all other rights relevant
to the said share rights to the Pledgee as a collateral security for the Pledgor to pay off
all debts to the Pledgee and for ICP Company to perform its payment obligation pursuant to the
Trademark License Agreement and the Technical Services Agreement and other relevant
obligations; the Pledgee agrees to accept such security.

Therefore, both parties agree as follows after equal and friendly negotiations:

	1	 	Interpretation and Definitions
	 
	1.1	 	In this Agreement, unless otherwise specified in the context, the following terms shall be
interpreted according to their respective meanings defined in the following clauses.
	 
	1.2	 	Secured Debts: shall mean the following debts:

	 	1.2.1	 	all the principal, interest, overdue interest, liquidated damages, indemnities
which the Pledgor shall pay to the Pledgee under the Loan Agreement, as well as all
expenditures (including the lawyer’s fee) and other amounts paid by the Pledgee for
enforcing its rights under the Loan Agreement when the Pledgor breaches the Agreement;
	 
	 	1.2.2	 	all liquidated damages which the Pledgor shall pay to the Pledgee under the Share
Rights Agreement, the interest of the liquidated damages, the overdue interest, as well
as all expenditures (including the lawyer’s fee) and other amounts paid by the Pledgee
for enforcing its rights under the Share Rights Agreement when the Pledgor breaches the
Share Rights Agreement;
	 
	 	1.2.3	 	all royalties for trademark license, the liquidated damages and other relevant
fees which ICP Company shall pay to the Pledgee under the Trademark License Agreement, as
well as all expenditures (including the lawyer’s fee) and other amounts paid by the
Pledgee for enforcing its rights under the Trademark License Agreement when ICP Company
breaches the Agreement;
	 
	 	1.2.4	 	the technology transfer fee, technology license fee, technical service fee,
equipment assignment fee and/or equipment rental, etc., the liquidated damages and other
relevant fees, which ICP Company shall pay to the Pledgee under the Technical Services

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	 	 	 	Agreement, as well as all expenditures (including the lawyer’s fee) and other amounts
paid by the Pledgee for enforcing its rights under the Technical Services Agreement
when ICP Company breaches the Technical Services Agreement.

	1.3	 	Pledged Rights: shall mean the Pledgor’s shares in ICP Company and all other rights relevant
to such shares. Specifically, the Pledged Rights include but are not limited to the following
rights:

	 	1.3.1	 	all dividends, profit distributions, extra dividends, allocated shares and any
other kind of funds relevant to the Pledged Rights, as well as corresponding rights and
interests, which the Pledgor shall be entitled to receive from ICP Company at present or
in the future;
	 
	 	1.3.2	 	the rights enjoyed by the Pledgor in determining ICP Company’s operational
guidelines, investment plans and other major matters as well as on electing and changing
directors and supervisors, which are corresponding to the Pledged Rights it holds;
	 
	 	1.3.3	 	all interests warranted, confirmed and promised by other parties under ICP
Company’s articles of association and other organizational documents to the Pledgor;
	 
	 	1.3.4	 	the Pledgor’s right of claiming against any party to ICP Company’s articles of
association or any other organizational document for compensation due to any breach;
	 
	 	1.3.5	 	the Pledgor’s right of consenting to or opposing the rescission, amendment or
termination of ICP Company’s articles of association and other organizational documents
due to the Pledged Rights it holds;
	 
	 	1.3.6	 	Other powers and rights relevant to the Pledged Rights, which the Pledgor is
entitled to according to relevant laws and regulations of China as well as ICP Company’s
articles of association and other organizational documents.

	2	 	Pledge of Stock Rights
	 
	2.1	 	The Pledgor warrants that it will, pursuant to the Loan Agreement and the Share Rights
Agreement, pays off relevant debts to the Pledgee, and meanwhile provide guaranty for ICP
Company to perform the payment obligation and other relevant obligations under the Trademark
License Agreement and the Technical Services Agreement. Therefore, the Pledgor agrees to
pledge the Pledged Rights to the Pledgee.
	 
	2.2	 	The Pledgor shall, on the date of execution of this Agreement, submit to the Pledgee the
following documents:

	 	2.2.1	 	the investment certificate issued by ICP Company to the Pledgor evidencing that
the Pledgor lawfully holds the Pledged Stock Rights;
	 
	 	2.2.2	 	the written documents showing that ICP Company’s other shareholders agree with the
Pledgor on establishing the pledge of share rights under this Agreement;
	 
	 	2.2.3	 	all other materials and documents reasonably required by the Pledgee.

	2.3	 	The Pledgor shall deliver the capital contribution certificate to the Pledgee on the date of
effectiveness of this Agreement, and go through the procedures for record of modification of
the share register in ICP Company.
	 
	3	 	Scope of Security
	 
	3.1	 	The scope of security of the Pledged Stock Rights under this Agreement shall cover:

	 	3.1.1	 	the Secured Debts as defined in Article 1.2 of this Agreement;
	 
	 	3.1.2	 	the expenditures paid by the Pledgee for enforcing its right of pledge under this
Agreement.

	4	 	Term of Right of Pledge
	 
	4.1	 	The valid duration of the right of pledge which the Pledgee enjoys under this Agreement shall
commence on the effectiveness date of this Agreement until the three-year anniversary of the
date when the last sum of guaranteed debt is due.
	 
	5	 	Exercise of the Right of Pledge
	 
	5.1	 	In the event that the Pledgor fails to pay off its debts under the Loan Agreement or the
Share Rights Agreement to the Pledgee on time, or ICP Company fails to perform its payment
obligation or other relevant obligations to the Pledgee under the Trademark License Agreement
or the Technical Services Agreement, or the Pledgor breaches its responsibilities or

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		 	obligations under this Agreement, the Pledgee shall be entitled to, within a scope permitted
by the applicable laws, exercise the right of pledge at any time it considers appropriate
within the duration of the right of pledge and in a method it considers appropriate. Such
methods shall include but not be limited to:

	 	5.1.1	 	negotiating with the Pledgor on paying off the Secured Debts by transferring to
the Pledgee the Pledged Rights;
	 
	 	5.1.2	 	selling off the Pledged Rights, and paying off the Secured Debts with the proceeds
from the sale;
	 
	 	5.1.3	 	retaining a competent institution to auction total or partial Pledged Rights;
and/or
	 
	 	5.1.4	 	disposing of the Pledged Rights by taking other appropriate measures permitted by
the applicable laws.

	5.2	 	In the process when the Pledgee disposes of the Pledged Rights according to the preceding
paragraph, the Pledgee shall be entitled to:

	 	5.2.1	 	substitute the Pledgor to exercise the powers or rights relevant to the Pledged
Rights as ICP Company’s shareholder;
	 
	 	5.2.2	 	pay necessary money for exercising any power or right imposed by this Agreement or
the law upon the Pledgee;
	 
	 	5.2.3	 	exercise in a way it considers appropriate or permit other person to exercise any
power or right under the Pledged Rights;
	 
	 	5.2.4	 	recover or claim the money payable to the Pledgor arising from the Pledged Rights
for paying off the Secured Debts;
	 
	 	5.2.5	 	with respect to claim by any person for the rights relevant to the Pledged Rights
in any respect, make settlement, reach reconciliation, resort to arbitration or
litigation proceedings or seek any other measures it considers appropriate;
	 
	 	5.2.6	 	take all other actions permitted by law for the purpose of enforcing any of its
rights under this Agreement.

	5.3	 	At the Pledgee’s request, the Pledgor must assist the Pledgee in obtaining all necessary
approvals or consents relevant to the Pledgee’s enforcement of its credit rights and the right
of pledge.
	 
	5.4	 	Within the duration of the right of pledge, the Pledgee shall be entitled to collect the
legal fruits of the Pledged Rights.
	 
	5.5	 	All the money collected by the Pledgee from the exercise of its right of pledge (including
but not limited to the price obtained from disposing of the Pledged Rights and any proceeds
derived from the Pledged Rights) shall be put into use in the following order on the premise
of not violating other clauses of this Agreement:

	 	5.5.1	 	It shall be at first used to pay all the expenses incurred to the Pledgee due to
exercise of the right of pledge and/or other rights under this Agreement;
	 
	 	5.5.2	 	Then, it shall be used by the Pledgee to pay off the Secured Debts according to
law;
	 
	 	5.5.3	 	If there is still remaining amount after the Secured Debts are paid off, the said
amount shall be paid to the Pledgor or the person who is entitled to receive it, with no
interest being paid.

	6	 	Rescission of the Right of Pledge
	 
	6.1	 	If, at any time within the effective duration of the right of pledge, the secured debts are
fully paid off, and the Pledgor no longer bears any obligation or liability under this
Agreement, the Pledgee’s right of pledge under this Agreement shall be extinct on the date
when all the Secured Debts are paid off. In such a case, at the Pledgor’s request, the Pledgee
shall execute the written documents on the pledge of shares created under this Agreement and
deliver them to the Pledgor, or assist the Pledgor in going through other procedures for
rescinding the pledge of shares under this Agreement.
	 
	6.2	 	Unless otherwise prescribed in the preceding paragraph, the pledge of shares under this
Agreement shall not be rescinded without the Pledgee’s prior written consent.
	 
	7	 	Nature of Security
	 
	7.1	 	The guaranty under this Agreement shall not be affected by other guaranties held by the
Pledgee regarding the Secured Debts, and shall not affect the effectiveness of those other

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	 	 	securities, either.
	 
	7.2	 	Neither the security nor the Pledgee’s rights under this Agreement shall be rescinded or
affected due to any of the following circumstances:

	 	7.2.1	 	the Pledgee’s offering a grace period to, rescission or mitigation of any person’s
debts at any time;
	 
	 	7.2.2	 	any amendment, modification or supplement to the Loan Agreement, the Share Rights
Agreement, the Trademark License Agreement and/or the Technical Services Agreement;
	 
	 	7.2.3	 	any disposal, modification or rescission of any other guaranty of the relevant
secured debts;
	 
	 	7.2.4	 	reconciliation reached on the claims raised by any person between the Pledgee and
such person;
	 
	 	7.2.5	 	any delay, act, nonfeasance or mistake arising out of the Pledgee’s exercise of
its rights;
	 
	 	7.2.6	 	any circumstance which the Loan Agreement, the Share Rights Agreement, the
Trademark License Agreement and/or the Technical Services Agreement or the performance
thereof are considered ineffective; or
	 
	 	7.2.7	 	any other event which might otherwise affect the Pledgor’s obligations under this
Agreement.

	8	 	Public Notarial Procedures
	 
	8.1	 	After the effectiveness of this Agreement, the Pledgor shall, at the Pledgee’s request,
cooperate with the Pledgee in going together to lawful public notary office to go through the
notarial procedures as required by this Agreement, and shall provide all necessary cooperation
as per the public notary office’s requirements.
	 
	8.2	 	All expenses incurred from the above mentioned notarial procedures shall be solely borne by
the Pledgee.
	 
	9	 	Special Provisions
	 
	9.1	 	Without the Pledgee’s prior written consent, the Pledgor shall not assign any right it may
enjoy under this Agreement or any obligation it shall bear hereunder to any other party.
	 
	9.2	 	The Pledgee shall be entitled to assign any of its rights or obligations under this Agreement
to any third party at any time without being consented by the Pledgor. In such a case, the
Pledgor shall unconditionally cooperate with the Pledgee in going through relevant procedures
for assignment of the rights and obligations, including but not limited to execution of
relevant agreement on change of contractual parties.
	 
	9.3	 	After the procedures for pledge of the shares under this Agreement are completed, unless the
Pledgee makes a reverse decision and informs the Pledgor, the Pledgor shall be obligated to
continue abiding by the legal provisions concerning the Pledged Rights, performing all rights
and obligations relevant to the Pledged Rights (including but not limited to exercising all
its powers and rights relevant to the Pledged Rights under ICP Company’s articles of
association), and fulfilling the prudence and credibility obligations which a shareholder
shall fulfill.
	 
	9.4	 	The Pledgee shall bear no obligation or legal liability for the Pledged Rights, nor does it
have to perform any obligation that the Pledgor shall bear for the Pledged Rights. Without
prejudice to the Pledgee’s rights under this Agreement, the Pledgee shall bear no obligation
or legal liability to others for the Pledged Rights under this Agreement.
	 
	9.5	 	The Pledgor must timely notify the Pledgee of any event that might affect the Pledged Stock
Rights or the value of the Pledged Stock Rights or might impede the Pledgor from performing
its rights as ICP Company’s shareholder or harm or delay its performing such rights.
	 
	9.6	 	Without the Pledgee’s prior consent, the Pledgor may not conduct any of the following acts:

	 	9.6.1	 	Amending or modifying in any other way ICP Company’s articles of association;
	 
	 	9.6.2	 	Establishing any further guaranty on the Pledged Rights beside the pledge created
under this Agreement;
	 
	 	9.6.3	 	Disposing of any interest of the Pledged Rights in any way;
	 
	 	9.6.4	 	Conducting any act that might harm the Pledgee’s Pledged Rights or any of its
rights under this Agreement.

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	9.7	 	Without the Pledgee’s written consent, the Pledgor shall not have the Pledged Rights
transferred or re-pledged, or dispose of the Pledged Rights in any other way which may harm
the right of pledge enjoyed by the Pledgee under this Agreement.
	 
	10	 	Representations, Commitments and Warranties
	 
	10.1	 	The pledgor hereby makes representations, commitments and warranties to the Pledgee as
follows:

	 	10.1.1	 	The Pledgor has lawful eligibility and necessary power to conclude this Agreement and
is able to entirely perform any of its obligations under this Agreement;
	 
	 	10.1.2	 	The Pledgor has lawfully performed its obligation of contributing investments to ICP
Company; is the only holder of the Pledged Rights; and has lawful, complete and full
ownership over all the Pledged Rights under this Agreement;
	 
	 	10.1.3	 	ICP Company’s shareholders’ meeting has adopted a resolution on consenting to the
pledge of shares pursuant to this Agreement;
	 
	 	10.1.4	 	Except the pledge established in this Agreement, the Pledgor has not established or
permitted others to establish any security right on the Pledged Rights without the
Pledgee’s prior written consent; the Pledged Rights are involved in no ownership dispute,
are not distained or limited in other legal proceedings, but may be pledged and
transferred according to the applicable laws;
	 
	 	10.1.5	 	There is neither existing or pending litigation, arbitration or administrative
proceedings against the Pledged Rights and/or the Pledgor nor any such threat;
	 
	 	10.1.6	 	The Pledgor’s execution of this Agreement, exercise of the rights under this Agreement,
or performance of the obligations under this Agreement will not violate any document or
legal provision applicable to the Pledgor or its properties;
	 
	 	10.1.7	 	The pledge created under this Agreement constitutes an effective security of the
secured debts, may be implemented according to its clauses, and shall not be restricted
by any other’s rights, interests or claims at a preferential or equal status;
	 
	 	10.1.8	 	All documents delivered by the Pledgor to the Pledgee and relevant to this Agreement
are authentic, complete and accurate in all substantive aspects, and there is no omission
that might cause any information in such documents to be in any way incorrect or
misleading;
	 
	 	10.1.9	 	This Agreement constitutes lawful, effective and binding obligations to the Pledgor,
and may be subject to compulsory enforcement according to its clauses upon application.

	10.2	 	The Pledgee hereby makes representations, commitments and warranties to the Pledgor:

	 	10.2.1	 	The Pledgee is a lawfully established and validly existing limited liability company,
has the right to conclude this Agreement and is able to perform its obligations under
this Agreement.
	 
	 	10.2.2	 	The Pledgee has obtained all authorizations and consents for executing and performing
this Agreement.

	11	 	Breach Liability
	 
	11.1	 	If Party A or Party B (each, a “Party”) directly or indirectly violates any provision
hereunder or fails to perform or fails to timely and fully perform any of its obligations
hereunder and thus constitutes a breach of this Agreement, the non-defaulting Party (the
“Non-Defaulting Party”) shall have the right to send a written notification requiring the
defaulting Party (the “Defaulting Party”) to make corrections, take adequate, effective and
timely measures to eliminate the effect thus caused, and indemnify the Non-Defaulting Party
any losses suffered from the Defaulting Party’s breach of contract.
	 
	11.2	 	Upon occurrence of any breach of contract, if the Non-Defaulting Party, based on reasonable
and objective judgment, believes that such breach of contract has caused it impossible or
unfair for the Non-Defaulting Party to perform its corresponding obligations hereunder, then
the Non-Defaulting Party may notify the Defaulting Party in writing that it will suspend its
performance of its corresponding obligations hereunder, until the Defaulting Party has stopped
its breach of contract, taken adequate, effective and timely measures to eliminate the effect

-5-

 

	 	 	thus caused, and indemnified the Non-Defaulting Party any losses suffered from the Defaulting
Party’s breach of contract.
	 
	11.3	 	The Non-Defaulting Party’s losses to be indemnified by the Defaulting Party due to its breach
of contract shall include the direct economic losses suffered by the Non-Defaulting Party due
to the breach of contract and any expectable indirect losses and additional fees and costs,
including but not limited to the lawyer’s fee, legal cost, arbitration cost, financial cost
and travel cost, etc.
	 
	12	 	Force Majeure
	 
	12.1	 	A Force Majeure Event refers to any event uncontrollable, unpredictable, or unavoidable even
predicted by the Parties hereunder, which interferes, affects or delays any Party’s
performance of the whole or part of its obligations hereunder. Such events shall include,
without limitation, the government’s act, acts of God, war, hacker’s attack or any other
similar event.
	 
	12.2	 	Any Party suffering from a Force Majeure Event may suspend its performance of its relevant
obligations hereunder thus prevented, without having to undertake any liability for breach of
contract, until the effect of such Force Majeure Event is eliminated. However, such affected
Party shall try its best to overcome such Force Majeure Event and reduce its adverse effect.
	 
	12.3	 	The Party affected by a Force Majeure Event shall provide the other Party with a legal
certificate issued by the local notary public (or any other competent organ) for certifying
such Force Majeure Event; otherwise, the other Party may request it to undertake breach
liability according to this Agreement.
	 
	13	 	Effectiveness, Amendment and Termination
	 
	13.1	 	This Agreement shall become effective upon the satisfaction of the following conditions:

	 	13.1.1	 	The pledgor and the Pledgee have formally executed this Agreement;
	 
	 	13.1.2	 	The pledge of the shares under this Agreement has been recorded in ICP Company’s
register of shareholders.

	13.2	 	Both parties may, after negotiations, amend this Agreement in the form of a written agreement
at any time.
	 
	13.3	 	This Agreement shall be terminated when any of the following circumstances arises:

	 	13.3.1	 	The duration of the right of pledge has elapsed;
	 
	 	13.3.2	 	Both parties rescind the pledge of the shares under this Agreement according to the
clause of “Rescission of the Right of Pledge” in this Agreement;
	 
	 	13.3.3	 	The Pledgee and the Pledgor agree after negotiations to terminate this Agreement;
	 
	 	13.3.4	 	The Pledgee unilaterally consents on terminating this Agreement in advance.

	13.4	 	The early termination of this Agreement shall not affect either party’s rights or obligations
accrued under this Agreement prior to the date when this Agreement was early terminated.
	 
	14	 	Dispute Settlement
	 
	14.1	 	Any dispute arising out of interpretation or performance hereof shall be settled through
friendly negotiation between the Parties.
	 
	14.2	 	If such negotiation fails, both Parties shall submit such dispute to China International
Economic and Trade Arbitration Commission for arbitration according its current arbitration
rules. The place of arbitration shall be Beijing, and the language of arbitration shall be
Chinese. The arbitration award shall be final and binding on both Parties.
	 
	14.3	 	The formation, effectiveness, performance and interpretation hereof as well as dispute
settlement shall be governed by the laws of the People’s Republic of China.
	 
	15	 	Miscellaneous
	 
	15.1	 	This Agreement is executed in triplicate, with each Party holding one, one copy for notary,
all of which shall be of the same legal effect.
	 
	15.2	 	The headings used in this Agreement are for convenience only, and shall not affect the
interpretation of any provision hereof.

-6-

 

	15.3	 	Both Parties may modify and supplement this Agreement through written agreements. Such
written agreement of modification or supplementation executed by both Parties shall constitute
a part of, and be of the same legal effect as, this Agreement.
	 
	15.4	 	If any provision hereunder is held invalid or unenforceable in whole or in part due to
violating laws or regulations or any other reason, the affected part of such provision shall
be deemed deleted from the Agreement. The deletion of such affected part shall not affect the
validity and enforceability of the other parts of such provision or that of other provisions
hereof. Both Parties shall negotiate and enter into new provisions so as to replace such
invalid or unenforceable provision.
	 
	15.5	 	Unless otherwise provided, any Party’s failure or delay in exercising any right, power or
privilege shall not be deemed as a waiver of such right, power or privilege. Any single or
partial exercise of any right, power or privilege shall not preclude exercise of any other
right, power or privilege.
	 
	15.6	 	This Agreement constitutes the entire agreement between the Parties with respect to the
subject matter hereof and supersede any and all previous or simultaneous oral and written
agreements, understandings and communication between the Parties relating to such subject
matter. Unless otherwise expressly provided herein, there shall not be any other express or
implied obligations or undertakings between the Parties.
	 
	15.7	 	This Agreement shall be binding upon both parties and their respective successors and
qualified assignees.
	 
	15.8	 	Any other matters not contemplated hereunder shall be subject to further negotiation between
the Parties.

 
	 	 	 	 	 	 	 	 	 
	Shareholder	 	 	 	SINA.com Technology (China) Co., Ltd.	 	 
	 
	 	 	 	 	 	 	 	 
	Handwritten Signature: 

	 	/s/
	 	Authorized Representative: 	 	/s/
	 	 
	 

	 	 
	 	 	 	 	 	 

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Share Pledge Agreement

This Share Pledge Agreement is entered into in Haidian District, Beijing between the following
parties on 18 (Day) 08 (Month) 2007 (Year):

Party A: DH Lin (hereinafter referred to as the “Pledgor”)

ID No.:

Party B: SINA.com Technology (China) Co., Ltd. (hereinafter referred to as the “Pledgee”)

Address: Room 1506, Ideal Plaza, 58 Bei Si Huan Xi Road, Haidian District, Beijing

Whereas:

	(1)	 	The Pledgor is a shareholder of Beijing Sina Internet Information Service Co., Ltd.
(hereinafter referred to as “ICP Company”), and owns 22.5% of ICP Company’s shares;
	 
	(2)	 	All of the Pledgor’s investments in ICP Company were sourced from the loan(s) provided by the
Pledgee to the Pledgor in accordance with an agreement between the Pledgor and the Pledgee
regarding the aforesaid loan(s) (hereinafter referred to as the “Loan Agreement”), the Pledgor
bears RMB 4,500,000 Yuan of debt to the Pledgee;
	 
	(3)	 	The Pledgor and the Pledgee entered into an Agreement on Authorization to Exercise
Shareholder’s Voting Power (the “Share Rights Agreement”) on 18 (Day) 08
(Month) 2007 (Year), and according to the Share Rights Agreement, in the case that
the Pledgor breaches the Share Rights Agreement, the Pledgor shall pay liquidated damages;
	 
	(4)	 	ICP Company and the Pledgee entered into a “Trademark License Agreement” on 18
(Day) 08 (Month) 2007 (Year), and according to the Trademark License
Agreement, ICP Company shall pay corresponding royalties for trademark licensed by the Pledgee
to ICP Company;
	 
	(5)	 	ICP Company and the Pledgee entered into a “Technical Services Agreement” on 18
(Day) 08 (Month) 2007 (Year), and according to the Technical Service
Agreement, ICP Company shall, as the case may be, pay corresponding technology transfer fee,
technology license fee, technical service fee, equipment assignment fee and/or equipment
rental, etc. to the Pledgee;
	 
	(6)	 	The Pledgor agrees to pledge all of its shares in ICP Company and all other rights relevant
to the said share rights to the Pledgee as a collateral security for the Pledgor to pay off
all debts to the Pledgee and for ICP Company to perform its payment obligation pursuant to the
Trademark License Agreement and the Technical Services Agreement and other relevant
obligations; the Pledgee agrees to accept such security.

Therefore, both parties agree as follows after equal and friendly negotiations:

	1	 	Interpretation and Definitions
	 
	1.1	 	In this Agreement, unless otherwise specified in the context, the following terms shall be
interpreted according to their respective meanings defined in the following clauses.
	 
	1.2	 	Secured Debts: shall mean the following debts:

	 	1.2.1	 	all the principal, interest, overdue interest, liquidated damages, indemnities
which the Pledgor shall pay to the Pledgee under the Loan Agreement, as well as all
expenditures (including the lawyer’s fee) and other amounts paid by the Pledgee for
enforcing its rights under the Loan Agreement when the Pledgor breaches the Agreement;
	 
	 	1.2.2	 	all liquidated damages which the Pledgor shall pay to the Pledgee under the Share
Rights Agreement, the interest of the liquidated damages, the overdue interest, as well
as all expenditures (including the lawyer’s fee) and other amounts paid by the Pledgee
for enforcing its rights under the Share Rights Agreement when the Pledgor breaches the
Share Rights Agreement;
	 
	 	1.2.3	 	all royalties for trademark license, the liquidated damages and other relevant
fees which ICP Company shall pay to the Pledgee under the Trademark License Agreement, as
well as all expenditures (including the lawyer’s fee) and other amounts paid by the
Pledgee for enforcing its rights under the Trademark License Agreement when ICP Company
breaches the Agreement;
	 
	 	1.2.4	 	the technology transfer fee, technology license fee, technical service fee,
equipment assignment fee and/or equipment rental, etc., the liquidated damages and other
relevant fees, which ICP Company shall pay to the Pledgee under the Technical Services

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	 	 	 	Agreement, as well as all expenditures (including the lawyer’s fee) and other amounts
paid by the Pledgee for enforcing its rights under the Technical Services Agreement
when ICP Company breaches the Technical Services Agreement.

	1.3	 	Pledged Rights: shall mean the Pledgor’s shares in ICP Company and all other rights relevant
to such shares. Specifically, the Pledged Rights include but are not limited to the following
rights:

	 	1.3.1	 	all dividends, profit distributions, extra dividends, allocated shares and any
other kind of funds relevant to the Pledged Rights, as well as corresponding rights and
interests, which the Pledgor shall be entitled to receive from ICP Company at present or
in the future;
	 
	 	1.3.2	 	the rights enjoyed by the Pledgor in determining ICP Company’s operational
guidelines, investment plans and other major matters as well as on electing and changing
directors and supervisors, which are corresponding to the Pledged Rights it holds;
	 
	 	1.3.3	 	all interests warranted, confirmed and promised by other parties under ICP
Company’s articles of association and other organizational documents to the Pledgor;
	 
	 	1.3.4	 	the Pledgor’s right of claiming against any party to ICP Company’s articles of
association or any other organizational document for compensation due to any breach;
	 
	 	1.3.5	 	the Pledgor’s right of consenting to or opposing the rescission, amendment or
termination of ICP Company’s articles of association and other organizational documents
due to the Pledged Rights it holds;
	 
	 	1.3.6	 	Other powers and rights relevant to the Pledged Rights, which the Pledgor is
entitled to according to relevant laws and regulations of China as well as ICP Company’s
articles of association and other organizational documents.

	2	 	Pledge of Stock Rights
	 
	2.1	 	The Pledgor warrants that it will, pursuant to the Loan Agreement and the Share Rights
Agreement, pays off relevant debts to the Pledgee, and meanwhile provide guaranty for ICP
Company to perform the payment obligation and other relevant obligations under the Trademark
License Agreement and the Technical Services Agreement. Therefore, the Pledgor agrees to
pledge the Pledged Rights to the Pledgee.
	 
	2.2	 	The Pledgor shall, on the date of execution of this Agreement, submit to the Pledgee the
following documents:

	 	2.2.1	 	the investment certificate issued by ICP Company to the Pledgor evidencing that
the Pledgor lawfully holds the Pledged Stock Rights;
	 
	 	2.2.2	 	the written documents showing that ICP Company’s other shareholders agree with the
Pledgor on establishing the pledge of share rights under this Agreement;
	 
	 	2.2.3	 	all other materials and documents reasonably required by the Pledgee.

	2.3	 	The Pledgor shall deliver the capital contribution certificate to the Pledgee on the date of
effectiveness of this Agreement, and go through the procedures for record of modification of
the share register in ICP Company.

	3	 	Scope of Security
	 
	3.1	 	The scope of security of the Pledged Stock Rights under this Agreement shall cover:

	 	3.1.1	 	the Secured Debts as defined in Article 1.2 of this Agreement;
	 
	 	3.1.2	 	the expenditures paid by the Pledgee for enforcing its right of pledge under this
Agreement.

	4	 	Term of Right of Pledge
	 
	4.1	 	The valid duration of the right of pledge which the Pledgee enjoys under this Agreement shall
commence on the effectiveness date of this Agreement until the three-year anniversary of the
date when the last sum of guaranteed debt is due.
	 
	5	 	Exercise of the Right of Pledge
	 
	5.1	 	In the event that the Pledgor fails to pay off its debts under the Loan Agreement or the
Share Rights Agreement to the Pledgee on time, or ICP Company fails to perform its payment
obligation or other relevant obligations to the Pledgee under the Trademark License Agreement
or the Technical Services Agreement, or the Pledgor breaches its responsibilities or

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	 	 	obligations under this Agreement, the Pledgee shall be entitled to, within a scope permitted
by the applicable
laws, exercise the right of pledge at any time it considers appropriate within the duration of
the right of pledge and in a method it considers appropriate. Such methods shall include but
not be limited to:

	 	5.1.1	 	negotiating with the Pledgor on paying off the Secured Debts by transferring to
the Pledgee the Pledged Rights;
	 
	 	5.1.2	 	selling off the Pledged Rights, and paying off the Secured Debts with the proceeds
from the sale;
	 
	 	5.1.3	 	retaining a competent institution to auction total or partial Pledged Rights;
and/or
	 
	 	5.1.4	 	disposing of the Pledged Rights by taking other appropriate measures permitted by
the applicable laws.

	5.2	 	In the process when the Pledgee disposes of the Pledged Rights according to the preceding
paragraph, the Pledgee shall be entitled to:

	 	5.2.1	 	substitute the Pledgor to exercise the powers or rights relevant to the Pledged
Rights as ICP Company’s shareholder;
	 
	 	5.2.2	 	pay necessary money for exercising any power or right imposed by this Agreement or
the law upon the Pledgee;
	 
	 	5.2.3	 	exercise in a way it considers appropriate or permit other person to exercise any
power or right under the Pledged Rights;
	 
	 	5.2.4	 	recover or claim the money payable to the Pledgor arising from the Pledged Rights
for paying off the Secured Debts;
	 
	 	5.2.5	 	with respect to claim by any person for the rights relevant to the Pledged Rights
in any respect, make settlement, reach reconciliation, resort to arbitration or
litigation proceedings or seek any other measures it considers appropriate;
	 
	 	5.2.6	 	take all other actions permitted by law for the purpose of enforcing any of its
rights under this Agreement.

	5.3	 	At the Pledgee’s request, the Pledgor must assist the Pledgee in obtaining all necessary
approvals or consents relevant to the Pledgee’s enforcement of its credit rights and the right
of pledge.
	 
	5.4	 	Within the duration of the right of pledge, the Pledgee shall be entitled to collect the
legal fruits of the Pledged Rights.
	 
	5.5	 	All the money collected by the Pledgee from the exercise of its right of pledge (including
but not limited to the price obtained from disposing of the Pledged Rights and any proceeds
derived from the Pledged Rights) shall be put into use in the following order on the premise
of not violating other clauses of this Agreement:

	 	5.5.1	 	It shall be at first used to pay all the expenses incurred to the Pledgee due to
exercise of the right of pledge and/or other rights under this Agreement;
	 
	 	5.5.2	 	Then, it shall be used by the Pledgee to pay off the Secured Debts according to
law;
	 
	 	5.5.3	 	If there is still remaining amount after the Secured Debts are paid off, the said
amount shall be paid to the Pledgor or the person who is entitled to receive it, with no
interest being paid.

	6	 	Rescission of the Right of Pledge
	 
	6.1	 	If, at any time within the effective duration of the right of pledge, the secured debts are
fully paid off, and the Pledgor no longer bears any obligation or liability under this
Agreement, the Pledgee’s right of pledge under this Agreement shall be extinct on the date
when all the Secured Debts are paid off. In such a case, at the Pledgor’s request, the Pledgee
shall execute the written documents on the pledge of shares created under this Agreement and
deliver them to the Pledgor, or assist the Pledgor in going through other procedures for
rescinding the pledge of shares under this Agreement.
	 
	6.2	 	Unless otherwise prescribed in the preceding paragraph, the pledge of shares under this
Agreement shall not be rescinded without the Pledgee’s prior written consent.
	 
	7	 	Nature of Security
	 
	7.1	 	The guaranty under this Agreement shall not be affected by other guaranties held by the
Pledgee regarding the Secured Debts, and shall not affect the effectiveness of those other

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	 	 	securities, either.

	7.2	 	Neither the security nor the Pledgee’s rights under this Agreement shall be rescinded or
affected due to any of the following circumstances:

	 	7.2.1	 	the Pledgee’s offering a grace period to, rescission or mitigation of any person’s
debts at any time;
	 
	 	7.2.2	 	any amendment, modification or supplement to the Loan Agreement, the Share Rights
Agreement, the Trademark License Agreement and/or the Technical Services Agreement;
	 
	 	7.2.3	 	any disposal, modification or rescission of any other guaranty of the relevant
secured debts;
	 
	 	7.2.4	 	reconciliation reached on the claims raised by any person between the Pledgee and
such person;
	 
	 	7.2.5	 	any delay, act, nonfeasance or mistake arising out of the Pledgee’s exercise of
its rights;
	 
	 	7.2.6	 	any circumstance which the Loan Agreement, the Share Rights Agreement, the
Trademark License Agreement and/or the Technical Services Agreement or the performance
thereof are considered ineffective; or
	 
	 	7.2.7	 	any other event which might otherwise affect the Pledgor’s obligations under this
Agreement.

	8	 	Public Notarial Procedures
	 
	8.1	 	After the effectiveness of this Agreement, the Pledgor shall, at the Pledgee’s request,
cooperate with the Pledgee in going together to lawful public notary office to go through the
notarial procedures as required by this Agreement, and shall provide all necessary cooperation
as per the public notary office’s requirements.
	 
	8.2	 	All expenses incurred from the above mentioned notarial procedures shall be solely borne by
the Pledgee.
	 
	9	 	Special Provisions
	 
	9.1	 	Without the Pledgee’s prior written consent, the Pledgor shall not assign any right it may
enjoy under this Agreement or any obligation it shall bear hereunder to any other party.
	 
	9.2	 	The Pledgee shall be entitled to assign any of its rights or obligations under this Agreement
to any third party at any time without being consented by the Pledgor. In such a case, the
Pledgor shall unconditionally cooperate with the Pledgee in going through relevant procedures
for assignment of the rights and obligations, including but not limited to execution of
relevant agreement on change of contractual parties.
	 
	9.3	 	After the procedures for pledge of the shares under this Agreement are completed, unless the
Pledgee makes a reverse decision and informs the Pledgor, the Pledgor shall be obligated to
continue abiding by the legal provisions concerning the Pledged Rights, performing all rights
and obligations relevant to the Pledged Rights (including but not limited to exercising all
its powers and rights relevant to the Pledged Rights under ICP Company’s articles of
association), and fulfilling the prudence and credibility obligations which a shareholder
shall fulfill.
	 
	9.4	 	The Pledgee shall bear no obligation or legal liability for the Pledged Rights, nor does it
have to perform any obligation that the Pledgor shall bear for the Pledged Rights. Without
prejudice to the Pledgee’s rights under this Agreement, the Pledgee shall bear no obligation
or legal liability to others for the Pledged Rights under this Agreement.
	 
	9.5	 	The Pledgor must timely notify the Pledgee of any event that might affect the Pledged Stock
Rights or the value of the Pledged Stock Rights or might impede the Pledgor from performing
its rights as ICP Company’s shareholder or harm or delay its performing such rights.
	 
	9.6	 	Without the Pledgee’s prior consent, the Pledgor may not conduct any of the following acts:

	 	9.6.1	 	Amending or modifying in any other way ICP Company’s articles of association;
	 
	 	9.6.2	 	Establishing any further guaranty on the Pledged Rights beside the pledge created
under this Agreement;
	 
	 	9.6.3	 	Disposing of any interest of the Pledged Rights in any way;
	 
	 	9.6.4	 	Conducting any act that might harm the Pledgee’s Pledged Rights or any of its rights under this Agreement.

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	9.7	 	Without the Pledgee’s written consent, the Pledgor shall not have the Pledged Rights
transferred or re-pledged, or dispose of the Pledged Rights in any other way which may harm
the right of pledge enjoyed by the Pledgee under this Agreement.
	 
	10	 	Representations, Commitments and Warranties
	 
	10.1	 	The pledgor hereby makes representations, commitments and warranties to the Pledgee as
follows:

	 	10.1.1	 	The Pledgor has lawful eligibility and necessary power to conclude this Agreement and
is able to entirely perform any of its obligations under this Agreement;
	 
	 	10.1.2	 	The Pledgor has lawfully performed its obligation of contributing investments to ICP
Company; is the only holder of the Pledged Rights; and has lawful, complete and full
ownership over all the Pledged Rights under this Agreement;
	 
	 	10.1.3	 	ICP Company’s shareholders’ meeting has adopted a resolution on consenting to the
pledge of shares pursuant to this Agreement;
	 
	 	10.1.4	 	Except the pledge established in this Agreement, the Pledgor has not established or
permitted others to establish any security right on the Pledged Rights without the
Pledgee’s prior written consent; the Pledged Rights are involved in no ownership dispute,
are not distained or limited in other legal proceedings, but may be pledged and
transferred according to the applicable laws;
	 
	 	10.1.5	 	There is neither existing or pending litigation, arbitration or administrative
proceedings against the Pledged Rights and/or the Pledgor nor any such threat;
	 
	 	10.1.6	 	The Pledgor’s execution of this Agreement, exercise of the rights under this Agreement,
or performance of the obligations under this Agreement will not violate any document or
legal provision applicable to the Pledgor or its properties;
	 
	 	10.1.7	 	The pledge created under this Agreement constitutes an effective security of the
secured debts, may be implemented according to its clauses, and shall not be restricted
by any other’s rights, interests or claims at a preferential or equal status;
	 
	 	10.1.8	 	All documents delivered by the Pledgor to the Pledgee and relevant to this Agreement
are authentic, complete and accurate in all substantive aspects, and there is no omission
that might cause any information in such documents to be in any way incorrect or
misleading;
	 
	 	10.1.9	 	This Agreement constitutes lawful, effective and binding obligations to the Pledgor,
and may be subject to compulsory enforcement according to its clauses upon application.

	10.2	 	The Pledgee hereby makes representations, commitments and warranties to the Pledgor:

	 	10.2.1	 	The Pledgee is a lawfully established and validly existing limited liability company,
has the right to conclude this Agreement and is able to perform its obligations under
this Agreement.
	 
	 	10.2.2	 	The Pledgee has obtained all authorizations and consents for executing and performing
this Agreement.

	11	 	Breach Liability
	 
	11.1	 	If Party A or Party B (each, a “Party”) directly or indirectly violates any provision
hereunder or fails to perform or fails to timely and fully perform any of its obligations
hereunder and thus constitutes a breach of this Agreement, the non-defaulting Party (the
“Non-Defaulting Party”) shall have the right to send a written notification requiring the
defaulting Party (the “Defaulting Party”) to make corrections, take adequate, effective and
timely measures to eliminate the effect thus caused, and indemnify the Non-Defaulting Party
any losses suffered from the Defaulting Party’s breach of contract.
	 
	11.2	 	Upon occurrence of any breach of contract, if the Non-Defaulting Party, based on reasonable
and objective judgment, believes that such breach of contract has caused it impossible or
unfair for the Non-Defaulting Party to perform its corresponding obligations hereunder, then
the Non-Defaulting Party may notify the Defaulting Party in writing that it will suspend its
performance of its corresponding obligations hereunder, until the Defaulting Party has stopped
its breach of contract, taken adequate, effective and timely measures to eliminate the effect

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	 	 	thus caused, and indemnified the Non-Defaulting Party any losses suffered from the Defaulting
Party’s breach of contract.

	11.3	 	The Non-Defaulting Party’s losses to be indemnified by the Defaulting Party due to its breach
of contract shall include the direct economic losses suffered by the Non-Defaulting Party due
to the breach of contract and any expectable indirect losses and additional fees and costs,
including but not limited to the lawyer’s fee, legal cost, arbitration cost, financial cost
and travel cost, etc.
	 
	12	 	Force Majeure
	 
	12.1	 	A Force Majeure Event refers to any event uncontrollable, unpredictable, or unavoidable even
predicted by the Parties hereunder, which interferes, affects or delays any Party’s
performance of the whole or part of its obligations hereunder. Such events shall include,
without limitation, the government’s act, acts of God, war, hacker’s attack or any other
similar event.
	 
	12.2	 	Any Party suffering from a Force Majeure Event may suspend its performance of its relevant
obligations hereunder thus prevented, without having to undertake any liability for breach of
contract, until the effect of such Force Majeure Event is eliminated. However, such affected
Party shall try its best to overcome such Force Majeure Event and reduce its adverse effect.
	 
	12.3	 	The Party affected by a Force Majeure Event shall provide the other Party with a legal
certificate issued by the local notary public (or any other competent organ) for certifying
such Force Majeure Event; otherwise, the other Party may request it to undertake breach
liability according to this Agreement.
	 
	13	 	Effectiveness, Amendment and Termination
	 
	13.1	 	This Agreement shall become effective upon the satisfaction of the following conditions:

	 	13.1.1	 	The pledgor and the Pledgee have formally executed this Agreement;
	 
	 	13.1.2	 	The pledge of the shares under this Agreement has been recorded in ICP Company’s
register of shareholders.

	13.2	 	Both parties may, after negotiations, amend this Agreement in the form of a written agreement
at any time.
	 
	13.3	 	This Agreement shall be terminated when any of the following circumstances arises:

	 	13.3.1	 	The duration of the right of pledge has elapsed;
	 
	 	13.3.2	 	Both parties rescind the pledge of the shares under this Agreement according to the
clause of “Rescission of the Right of Pledge” in this Agreement;
	 
	 	13.3.3	 	The Pledgee and the Pledgor agree after negotiations to terminate this Agreement;

	 
	 	13.3.4	 	The Pledgee unilaterally consents on terminating this Agreement in advance.

	13.4	 	The early termination of this Agreement shall not affect either party’s rights or obligations
accrued under this Agreement prior to the date when this Agreement was early terminated.
	 
	14	 	Dispute Settlement
	 
	14.1	 	Any dispute arising out of interpretation or performance hereof shall be settled through
friendly negotiation between the Parties.
	 
	14.2	 	If such negotiation fails, both Parties shall submit such dispute to China International
Economic and Trade Arbitration Commission for arbitration according its current arbitration
rules. The place of arbitration shall be Beijing, and the language of arbitration shall be
Chinese. The arbitration award shall be final and binding on both Parties.
	 
	14.3	 	The formation, effectiveness, performance and interpretation hereof as well as dispute
settlement shall be governed by the laws of the People’s Republic of China.
	 
	15	 	Miscellaneous
	 
	15.1	 	This Agreement is executed in triplicate, with each Party holding one, one copy for notary,
all of which shall be of the same legal effect.
	 
	15.2	 	The headings used in this Agreement are for convenience only, and shall not affect the
interpretation of any provision hereof.

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	15.3	 	Both Parties may modify and supplement this Agreement through written agreements. Such
written agreement of modification or supplementation executed by both Parties shall constitute
a part of, and be of the same legal effect as, this Agreement.
	 
	15.4	 	If any provision hereunder is held invalid or unenforceable in whole or in part due to
violating laws or regulations or any other reason, the affected part of such provision shall
be deemed deleted from the Agreement. The deletion of such affected part shall not affect the
validity and enforceability of the other parts of such provision or that of other provisions
hereof. Both Parties shall negotiate and enter into new provisions so as to replace such
invalid or unenforceable provision.
	 
	15.5	 	Unless otherwise provided, any Party’s failure or delay in exercising any right, power or
privilege shall not be deemed as a waiver of such right, power or privilege. Any single or
partial exercise of any right, power or privilege shall not preclude exercise of any other
right, power or privilege.
	 
	15.6	 	This Agreement constitutes the entire agreement between the Parties with respect to the
subject matter hereof and supersede any and all previous or simultaneous oral and written
agreements, understandings and communication between the Parties relating to such subject
matter. Unless otherwise expressly provided herein, there shall not be any other express or
implied obligations or undertakings between the Parties.
	 
	15.7	 	This Agreement shall be binding upon both parties and their respective successors and
qualified assignees.
	 
	15.8	 	Any other matters not contemplated hereunder shall be subject to further negotiation between
the Parties.

 
	 	 	 	 	 	 	 	 	 
	Shareholder	 	 	 	SINA.com Technology (China) Co., Ltd.	 	 
	 
	 	 	 	 	 	 	 	 
	Handwritten Signature:

	 	/s/
	 	Authorized Representative:
	 	/s/
	 	 
	 

	 	 
	 	 	 	 	 	 

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Share Pledge Agreement

This Share Pledge Agreement is entered into in Haidian District, Beijing between the following
parties on 18 (Day) 08 (Month) 2007 (Year):

Party A: T Chen (hereinafter referred to as the “Pledgor”)

ID No.:

Party B: SINA.com Technology (China) Co., Ltd. (hereinafter referred to as the “Pledgee”)

Address: Room 1506, Ideal Plaza, 58 Bei Si Huan Xi Road, Haidian District, Beijing

Whereas:

	(1)	 	The Pledgor is a shareholder of Beijing Sina Internet Information Service Co., Ltd.
(hereinafter referred to as “ICP Company”), and owns 22.5% of ICP Company’s shares;
	 
	(2)	 	All of the Pledgor’s investments in ICP Company were sourced from the loan(s) provided by the
Pledgee to the Pledgor in accordance with an agreement between the Pledgor and the Pledgee
regarding the aforesaid loan(s) (hereinafter referred to as the “Loan Agreement”), the Pledgor
bears RMB 4,500,000 Yuan of debt to the Pledgee;
	 
	(3)	 	The Pledgor and the Pledgee entered into an Agreement on Authorization to Exercise
Shareholder’s Voting Power (the “Share Rights Agreement”) on 18 (Day) 08
(Month) 2007 (Year), and according to the Share Rights Agreement, in the case that
the Pledgor breaches the Share Rights Agreement, the Pledgor shall pay liquidated damages;
	 
	(4)	 	ICP Company and the Pledgee entered into a “Trademark License Agreement” on 18
(Day) 08 (Month) 2007 (Year), and according to the Trademark License
Agreement, ICP Company shall pay corresponding royalties for trademark licensed by the Pledgee
to ICP Company;
	 
	(5)	 	ICP Company and the Pledgee entered into a “Technical Services Agreement” on 18
(Day) 08 (Month) 2007 (Year), and according to the Technical Service
Agreement, ICP Company shall, as the case may be, pay corresponding technology transfer fee,
technology license fee, technical service fee, equipment assignment fee and/or equipment
rental, etc. to the Pledgee;
	 
	(6)	 	The Pledgor agrees to pledge all of its shares in ICP Company and all other rights relevant
to the said share rights to the Pledgee as a collateral security for the Pledgor to pay off
all debts to the Pledgee and for ICP Company to perform its payment obligation pursuant to the
Trademark License Agreement and the Technical Services Agreement and other relevant
obligations; the Pledgee agrees to accept such security.

Therefore, both parties agree as follows after equal and friendly negotiations:

	1	 	Interpretation and Definitions
	 
	1.1	 	In this Agreement, unless otherwise specified in the context, the following terms shall be
interpreted according to their respective meanings defined in the following clauses.
	 
	1.2	 	Secured Debts: shall mean the following debts:

	 	1.2.1	 	all the principal, interest, overdue interest, liquidated damages, indemnities
which the Pledgor shall pay to the Pledgee under the Loan Agreement, as well as all
expenditures (including the lawyer’s fee) and other amounts paid by the Pledgee for
enforcing its rights under the Loan Agreement when the Pledgor breaches the Agreement;
	 
	 	1.2.2	 	all liquidated damages which the Pledgor shall pay to the Pledgee under the Share
Rights Agreement, the interest of the liquidated damages, the overdue interest, as well
as all expenditures (including the lawyer’s fee) and other amounts paid by the Pledgee
for enforcing its rights under the Share Rights Agreement when the Pledgor breaches the
Share Rights Agreement;
	 
	 	1.2.3	 	all royalties for trademark license, the liquidated damages and other relevant
fees which ICP Company shall pay to the Pledgee under the Trademark License Agreement, as
well as all expenditures (including the lawyer’s fee) and other amounts paid by the
Pledgee for enforcing its rights under the Trademark License Agreement when ICP Company
breaches the Agreement;
	 
	 	1.2.4	 	the technology transfer fee, technology license fee, technical service fee,
equipment assignment fee and/or equipment rental, etc., the liquidated damages and other
relevant fees, which ICP Company shall pay to the Pledgee under the Technical Services

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	 	 	 	Agreement, as well as all expenditures (including the lawyer’s fee) and other amounts
paid by the Pledgee for enforcing its rights under the Technical Services Agreement
when ICP Company breaches the Technical Services Agreement.

	1.3	 	Pledged Rights: shall mean the Pledgor’s shares in ICP Company and all other rights relevant
to such shares. Specifically, the Pledged Rights include but are not limited to the following
rights:

	 	1.3.1	 	all dividends, profit distributions, extra dividends, allocated shares and any
other kind of funds relevant to the Pledged Rights, as well as corresponding rights and
interests, which the Pledgor shall be entitled to receive from ICP Company at present or
in the future;
	 
	 	1.3.2	 	the rights enjoyed by the Pledgor in determining ICP Company’s operational
guidelines, investment plans and other major matters as well as on electing and changing
directors and supervisors, which are corresponding to the Pledged Rights it holds;
	 
	 	1.3.3	 	all interests warranted, confirmed and promised by other parties under ICP
Company’s articles of association and other organizational documents to the Pledgor;
	 
	 	1.3.4	 	the Pledgor’s right of claiming against any party to ICP Company’s articles of
association or any other organizational document for compensation due to any breach;
	 
	 	1.3.5	 	the Pledgor’s right of consenting to or opposing the rescission, amendment or
termination of ICP Company’s articles of association and other organizational documents
due to the Pledged Rights it holds;
	 
	 	1.3.6	 	Other powers and rights relevant to the Pledged Rights, which the Pledgor is
entitled to according to relevant laws and regulations of China as well as ICP Company’s
articles of association and other organizational documents.

	2	 	Pledge of Stock Rights
	 
	2.1	 	The Pledgor warrants that it will, pursuant to the Loan Agreement and the Share Rights
Agreement, pays off relevant debts to the Pledgee, and meanwhile provide guaranty for ICP
Company to perform the payment obligation and other relevant obligations under the Trademark
License Agreement and the Technical Services Agreement. Therefore, the Pledgor agrees to
pledge the Pledged Rights to the Pledgee.
	 
	2.2	 	The Pledgor shall, on the date of execution of this Agreement, submit to the Pledgee the
following documents:

	 	2.2.1	 	the investment certificate issued by ICP Company to the Pledgor evidencing that
the Pledgor lawfully holds the Pledged Stock Rights;
	 
	 	2.2.2	 	the written documents showing that ICP Company’s other shareholders agree with the
Pledgor on establishing the pledge of share rights under this Agreement;
	 
	 	2.2.3	 	all other materials and documents reasonably required by the Pledgee.

	2.3	 	The Pledgor shall deliver the capital contribution certificate to the Pledgee on the date of
effectiveness of this Agreement, and go through the procedures for record of modification of
the share register in ICP Company.
	 
	3	 	Scope of Security
	 
	3.1	 	The scope of security of the Pledged Stock Rights under this Agreement shall cover:

	 	3.1.1	 	the Secured Debts as defined in Article 1.2 of this Agreement;
	 
	 	3.1.2	 	the expenditures paid by the Pledgee for enforcing its right of pledge under this
Agreement.

	4	 	Term of Right of Pledge
	 
	4.1	 	The valid duration of the right of pledge which the Pledgee enjoys under this Agreement shall
commence on the effectiveness date of this Agreement until the three-year anniversary of the
date when the last sum of guaranteed debt is due.
	 
	5	 	Exercise of the Right of Pledge
	 
	5.1	 	In the event that the Pledgor fails to pay off its debts under the Loan Agreement or the
Share Rights Agreement to the Pledgee on time, or ICP Company fails to perform its payment
obligation or other relevant obligations to the Pledgee under the Trademark License Agreement
or the Technical Services Agreement, or the Pledgor breaches its responsibilities or

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	 	 	obligations under this Agreement, the Pledgee shall be entitled to, within a scope permitted
by the applicable
laws, exercise the right of pledge at any time it considers appropriate within the duration of
the right of pledge and in a method it considers appropriate. Such methods shall include but
not be limited to:

	 	5.1.1	 	negotiating with the Pledgor on paying off the Secured Debts by transferring to
the Pledgee the Pledged Rights;
	 
	 	5.1.2	 	selling off the Pledged Rights, and paying off the Secured Debts with the proceeds
from the sale;
	 
	 	5.1.3	 	retaining a competent institution to auction total or partial Pledged Rights;
and/or
	 
	 	5.1.4	 	disposing of the Pledged Rights by taking other appropriate measures permitted by
the applicable laws.

	5.2	 	In the process when the Pledgee disposes of the Pledged Rights according to the preceding
paragraph, the Pledgee shall be entitled to:

	 	5.2.1	 	substitute the Pledgor to exercise the powers or rights relevant to the Pledged
Rights as ICP Company’s shareholder;
	 
	 	5.2.2	 	pay necessary money for exercising any power or right imposed by this Agreement or
the law upon the Pledgee;
	 
	 	5.2.3	 	exercise in a way it considers appropriate or permit other person to exercise any
power or right under the Pledged Rights;
	 
	 	5.2.4	 	recover or claim the money payable to the Pledgor arising from the Pledged Rights
for paying off the Secured Debts;
	 
	 	5.2.5	 	with respect to claim by any person for the rights relevant to the Pledged Rights
in any respect, make settlement, reach reconciliation, resort to arbitration or
litigation proceedings or seek any other measures it considers appropriate;
	 
	 	5.2.6	 	take all other actions permitted by law for the purpose of enforcing any of its
rights under this Agreement.

	5.3	 	At the Pledgee’s request, the Pledgor must assist the Pledgee in obtaining all necessary
approvals or consents relevant to the Pledgee’s enforcement of its credit rights and the right
of pledge.
	 
	5.4	 	Within the duration of the right of pledge, the Pledgee shall be entitled to collect the
legal fruits of the Pledged Rights.
	 
	5.5	 	All the money collected by the Pledgee from the exercise of its right of pledge (including
but not limited to the price obtained from disposing of the Pledged Rights and any proceeds
derived from the Pledged Rights) shall be put into use in the following order on the premise
of not violating other clauses of this Agreement:

	 	5.5.1	 	It shall be at first used to pay all the expenses incurred to the Pledgee due to
exercise of the right of pledge and/or other rights under this Agreement;
	 
	 	5.5.2	 	Then, it shall be used by the Pledgee to pay off the Secured Debts according to
law;
	 
	 	5.5.3	 	If there is still remaining amount after the Secured Debts are paid off, the said
amount shall be paid to the Pledgor or the person who is entitled to receive it, with no
interest being paid.

	6	 	Rescission of the Right of Pledge
	 
	6.1	 	If, at any time within the effective duration of the right of pledge, the secured debts are
fully paid off, and the Pledgor no longer bears any obligation or liability under this
Agreement, the Pledgee’s right of pledge under this Agreement shall be extinct on the date
when all the Secured Debts are paid off. In such a case, at the Pledgor’s request, the Pledgee
shall execute the written documents on the pledge of shares created under this Agreement and
deliver them to the Pledgor, or assist the Pledgor in going through other procedures for
rescinding the pledge of shares under this Agreement.
	 
	6.2	 	Unless otherwise prescribed in the preceding paragraph, the pledge of shares under this
Agreement shall not be rescinded without the Pledgee’s prior written consent.
	 
	7	 	Nature of Security
	 
	7.1	 	The guaranty under this Agreement shall not be affected by other guaranties held by the
Pledgee regarding the Secured Debts, and shall not affect the effectiveness of those other

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	 	 	securities, either.
	 
	7.2	 	Neither the security nor the Pledgee’s rights under this Agreement shall be rescinded or
affected due to any of the following circumstances:

	 	7.2.1	 	the Pledgee’s offering a grace period to, rescission or mitigation of any person’s
debts at any time;
	 
	 	7.2.2	 	any amendment, modification or supplement to the Loan Agreement, the Share Rights
Agreement, the Trademark License Agreement and/or the Technical Services Agreement;
	 
	 	7.2.3	 	any disposal, modification or rescission of any other guaranty of the relevant
secured debts;
	 
	 	7.2.4	 	reconciliation reached on the claims raised by any person between the Pledgee and
such person;
	 
	 	7.2.5	 	any delay, act, nonfeasance or mistake arising out of the Pledgee’s exercise of
its rights;
	 
	 	7.2.6	 	any circumstance which the Loan Agreement, the Share Rights Agreement, the
Trademark License Agreement and/or the Technical Services Agreement or the performance
thereof are considered ineffective; or
	 
	 	7.2.7	 	any other event which might otherwise affect the Pledgor’s obligations under this
Agreement.

	8	 	Public Notarial Procedures
	 
	8.1	 	After the effectiveness of this Agreement, the Pledgor shall, at the Pledgee’s request,
cooperate with the Pledgee in going together to lawful public notary office to go through the
notarial procedures as required by this Agreement, and shall provide all necessary cooperation
as per the public notary office’s requirements.
	 
	8.2	 	All expenses incurred from the above mentioned notarial procedures shall be solely borne by
the Pledgee.
	 
	9	 	Special Provisions
	 
	9.1	 	Without the Pledgee’s prior written consent, the Pledgor shall not assign any right it may
enjoy under this Agreement or any obligation it shall bear hereunder to any other party.
	 
	9.2	 	The Pledgee shall be entitled to assign any of its rights or obligations under this Agreement
to any third party at any time without being consented by the Pledgor. In such a case, the
Pledgor shall unconditionally cooperate with the Pledgee in going through relevant procedures
for assignment of the rights and obligations, including but not limited to execution of
relevant agreement on change of contractual parties.
	 
	9.3	 	After the procedures for pledge of the shares under this Agreement are completed, unless the
Pledgee makes a reverse decision and informs the Pledgor, the Pledgor shall be obligated to
continue abiding by the legal provisions concerning the Pledged Rights, performing all rights
and obligations relevant to the Pledged Rights (including but not limited to exercising all
its powers and rights relevant to the Pledged Rights under ICP Company’s articles of
association), and fulfilling the prudence and credibility obligations which a shareholder
shall fulfill.
	 
	9.4	 	The Pledgee shall bear no obligation or legal liability for the Pledged Rights, nor does it
have to perform any obligation that the Pledgor shall bear for the Pledged Rights. Without
prejudice to the Pledgee’s rights under this Agreement, the Pledgee shall bear no obligation
or legal liability to others for the Pledged Rights under this Agreement.
	 
	9.5	 	The Pledgor must timely notify the Pledgee of any event that might affect the Pledged Stock
Rights or the value of the Pledged Stock Rights or might impede the Pledgor from performing
its rights as ICP Company’s shareholder or harm or delay its performing such rights.
	 
	9.6	 	Without the Pledgee’s prior consent, the Pledgor may not conduct any of the following acts:

	 	9.6.1	 	Amending or modifying in any other way ICP Company’s articles of association;
	 
	 	9.6.2	 	Establishing any further guaranty on the Pledged Rights beside the pledge created
under this Agreement;
	 
	 	9.6.3	 	Disposing of any interest of the Pledged Rights in any way;
	 
	 	9.6.4	 	Conducting any act that might harm the Pledgee’s Pledged Rights or any of its
rights under this Agreement.

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	9.7	 	Without the Pledgee’s written consent, the Pledgor shall not have the Pledged Rights
transferred or re-pledged, or dispose of the Pledged Rights in any other way which may harm
the right of pledge enjoyed by the Pledgee under this Agreement.

	10	 	Representations, Commitments and Warranties
	 
	10.1	 	The pledgor hereby makes representations, commitments and warranties to the Pledgee as
follows:

	 	10.1.1	 	The Pledgor has lawful eligibility and necessary power to conclude this Agreement and
is able to entirely perform any of its obligations under this Agreement;
	 
	 	10.1.2	 	The Pledgor has lawfully performed its obligation of contributing investments to ICP
Company; is the only holder of the Pledged Rights; and has lawful, complete and full
ownership over all the Pledged Rights under this Agreement;
	 
	 	10.1.3	 	ICP Company’s shareholders’ meeting has adopted a resolution on consenting to the
pledge of shares pursuant to this Agreement;
	 
	 	10.1.4	 	Except the pledge established in this Agreement, the Pledgor has not established or
permitted others to establish any security right on the Pledged Rights without the
Pledgee’s prior written consent; the Pledged Rights are involved in no ownership dispute,
are not distained or limited in other legal proceedings, but may be pledged and
transferred according to the applicable laws;
	 
	 	10.1.5	 	There is neither existing or pending litigation, arbitration or administrative
proceedings against the Pledged Rights and/or the Pledgor nor any such threat;
	 
	 	10.1.6	 	The Pledgor’s execution of this Agreement, exercise of the rights under this Agreement,
or performance of the obligations under this Agreement will not violate any document or
legal provision applicable to the Pledgor or its properties;
	 
	 	10.1.7	 	The pledge created under this Agreement constitutes an effective security of the
secured debts, may be implemented according to its clauses, and shall not be restricted
by any other’s rights, interests or claims at a preferential or equal status;
	 
	 	10.1.8	 	All documents delivered by the Pledgor to the Pledgee and relevant to this Agreement
are authentic, complete and accurate in all substantive aspects, and there is no omission
that might cause any information in such documents to be in any way incorrect or
misleading;
	 
	 	10.1.9	 	This Agreement constitutes lawful, effective and binding obligations to the Pledgor,
and may be subject to compulsory enforcement according to its clauses upon application.

	10.2	 	The Pledgee hereby makes representations, commitments and warranties to the Pledgor:

	 	10.2.1	 	The Pledgee is a lawfully established and validly existing limited liability company,
has the right to conclude this Agreement and is able to perform its obligations under
this Agreement.
	 
	 	10.2.2	 	The Pledgee has obtained all authorizations and consents for executing and performing
this Agreement.

	11	 	Breach Liability
	 
	11.1	 	If Party A or Party B (each, a “Party”) directly or indirectly violates any provision
hereunder or fails to perform or fails to timely and fully perform any of its obligations
hereunder and thus constitutes a breach of this Agreement, the non-defaulting Party (the
“Non-Defaulting Party”) shall have the right to send a written notification requiring the
defaulting Party (the “Defaulting Party”) to make corrections, take adequate, effective and
timely measures to eliminate the effect thus caused, and indemnify the Non-Defaulting Party
any losses suffered from the Defaulting Party’s breach of contract.
	 
	11.2	 	Upon occurrence of any breach of contract, if the Non-Defaulting Party, based on reasonable
and objective judgment, believes that such breach of contract has caused it impossible or
unfair for the Non-Defaulting Party to perform its corresponding obligations hereunder, then
the Non-Defaulting Party may notify the Defaulting Party in writing that it will suspend its
performance of its corresponding obligations hereunder, until the Defaulting Party has stopped
its breach of contract, taken adequate, effective and timely measures to eliminate the effect

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	 	 	thus caused, and indemnified the Non-Defaulting Party any losses suffered from the Defaulting
Party’s breach of contract.
	 
	11.3	 	The Non-Defaulting Party’s losses to be indemnified by the Defaulting Party due to its breach
of contract shall include the direct economic losses suffered by the Non-Defaulting Party due
to the breach of contract and any expectable indirect losses and additional fees and costs,
including but not limited to the lawyer’s fee, legal cost, arbitration cost, financial cost
and travel cost, etc.
	 
	12	 	Force Majeure
	 
	12.1	 	A Force Majeure Event refers to any event uncontrollable, unpredictable, or unavoidable even
predicted by the Parties hereunder, which interferes, affects or delays any Party’s
performance of the whole or part of its obligations hereunder. Such events shall include,
without limitation, the government’s act, acts of God, war, hacker’s attack or any other
similar event.
	 
	12.2	 	Any Party suffering from a Force Majeure Event may suspend its performance of its relevant
obligations hereunder thus prevented, without having to undertake any liability for breach of
contract, until the effect of such Force Majeure Event is eliminated. However, such affected
Party shall try its best to overcome such Force Majeure Event and reduce its adverse effect.
	 
	12.3	 	The Party affected by a Force Majeure Event shall provide the other Party with a legal
certificate issued by the local notary public (or any other competent organ) for certifying
such Force Majeure Event; otherwise, the other Party may request it to undertake breach
liability according to this Agreement.
	 
	13	 	Effectiveness, Amendment and Termination
	 
	13.1	 	This Agreement shall become effective upon the satisfaction of the following conditions:

	 	13.1.1	 	The pledgor and the Pledgee have formally executed this Agreement;
	 
	 	13.1.2	 	The pledge of the shares under this Agreement has been recorded in ICP Company’s
register of shareholders.

	13.2	 	Both parties may, after negotiations, amend this Agreement in the form of a written agreement
at any time.
	 
	13.3	 	This Agreement shall be terminated when any of the following circumstances arises:

	 	13.3.1	 	The duration of the right of pledge has elapsed;
	 
	 	13.3.2	 	Both parties rescind the pledge of the shares under this Agreement according to the
clause of “Rescission of the Right of Pledge” in this Agreement;
	 
	 	13.3.3	 	The Pledgee and the Pledgor agree after negotiations to terminate this Agreement;
	 
	 	13.3.4	 	The Pledgee unilaterally consents on terminating this Agreement in advance.

	13.4	 	The early termination of this Agreement shall not affect either party’s rights or obligations
accrued under this Agreement prior to the date when this Agreement was early terminated.

	14	 	Dispute Settlement
	 
	14.1	 	Any dispute arising out of interpretation or performance hereof shall be settled through
friendly negotiation between the Parties.
	 
	14.2	 	If such negotiation fails, both Parties shall submit such dispute to China International
Economic and Trade Arbitration Commission for arbitration according its current arbitration
rules. The place of arbitration shall be Beijing, and the language of arbitration shall be
Chinese. The arbitration award shall be final and binding on both Parties.
	 
	14.3	 	The formation, effectiveness, performance and interpretation hereof as well as dispute
settlement shall be governed by the laws of the People’s Republic of China.
	 
	15	 	Miscellaneous
	 
	15.1	 	This Agreement is executed in triplicate, with each Party holding one, one copy for notary,
all of which shall be of the same legal effect.
	 
	15.2	 	The headings used in this Agreement are for convenience only, and shall not affect the
interpretation of any provision hereof.

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	15.3	 	Both Parties may modify and supplement this Agreement through written agreements. Such
written agreement of modification or supplementation executed by both Parties shall constitute
a part of, and be of the same legal effect as, this Agreement.
	 
	15.4	 	If any provision hereunder is held invalid or unenforceable in whole or in part due to
violating laws or regulations or any other reason, the affected part of such provision shall
be deemed deleted from the Agreement. The deletion of such affected part shall not affect the
validity and enforceability of the other parts of such provision or that of other provisions
hereof. Both Parties shall negotiate and enter into new provisions so as to replace such
invalid or unenforceable provision.
	 
	15.5	 	Unless otherwise provided, any Party’s failure or delay in exercising any right, power or
privilege shall not be deemed as a waiver of such right, power or privilege. Any single or
partial exercise of any right, power or privilege shall not preclude exercise of any other
right, power or privilege.
	 
	15.6	 	This Agreement constitutes the entire agreement between the Parties with respect to the
subject matter hereof and supersede any and all previous or simultaneous oral and written
agreements, understandings and communication between the Parties relating to such subject
matter. Unless otherwise expressly provided herein, there shall not be any other express or
implied obligations or undertakings between the Parties.
	 
	15.7	 	This Agreement shall be binding upon both parties and their respective successors and
qualified assignees.
	 
	15.8	 	Any other matters not contemplated hereunder shall be subject to further negotiation between
the Parties.

 
	 	 	 	 	 	 	 	 	 
	Shareholder	 	 	 	SINA.com Technology (China) Co., Ltd.	 	 
	 
	 	 	 	 	 	 	 	 
	Handwritten Signature :

	 	/s/
	 	Authorized Representative :
	 	/s/
	 	 
	 

	 	 
	 	 	 	 	 	 

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Share Pledge Agreement

This Share Pledge Agreement is entered into in Haidian District, Beijing between the following
parties on 18 (Day) 08 (Month) 2007 (Year):

Party A: H Du (hereinafter referred to as the “Pledgor”)

ID No.:

Party B: SINA.com Technology (China) Co., Ltd. (hereinafter referred to as the “Pledgee”)

Address: Room 1506, Ideal Plaza, 58 Bei Si Huan Xi Road, Haidian District, Beijing

Whereas:

	(1)	 	The Pledgor is a shareholder of Beijing Sina Internet Information Service Co., Ltd.
(hereinafter referred to as “ICP Company”), and owns 26.75% of ICP Company’s shares;
	 
	(2)	 	All of the Pledgor’s investments in ICP Company were sourced from the loan(s) provided by the
Pledgee to the Pledgor in accordance with an agreement between the Pledgor and the Pledgee
regarding the aforesaid loan(s) (hereinafter referred to as the “Loan Agreement”), the Pledgor
bears RMB 5,350,000 Yuan of debt to the Pledgee;
	 
	(3)	 	The Pledgor and the Pledgee entered into an Agreement on Authorization to Exercise
Shareholder’s Voting Power (the “Share Rights Agreement”) on 18 (Day) 08
(Month) 2007 (Year), and according to the Share Rights Agreement, in the case that
the Pledgor breaches the Share Rights Agreement, the Pledgor shall pay liquidated damages;
	 
	(4)	 	ICP Company and the Pledgee entered into a “Trademark License Agreement” on 18
(Day) 08 (Month) 2007 (Year), and according to the Trademark License
Agreement, ICP Company shall pay corresponding royalties for trademark licensed by the Pledgee
to ICP Company;
	 
	(5)	 	ICP Company and the Pledgee entered into a “Technical Services Agreement” on 18
(Day) 08 (Month) 2007 (Year), and according to the Technical Service
Agreement, ICP Company shall, as the case may be, pay corresponding technology transfer fee,
technology license fee, technical service fee, equipment assignment fee and/or equipment
rental, etc. to the Pledgee;
	 
	(6)	 	The Pledgor agrees to pledge all of its shares in ICP Company and all other rights relevant
to the said share rights to the Pledgee as a collateral security for the Pledgor to pay off
all debts to the Pledgee and for ICP Company to perform its payment obligation pursuant to the
Trademark License Agreement and the Technical Services Agreement and other relevant
obligations; the Pledgee agrees to accept such security.

Therefore, both parties agree as follows after equal and friendly negotiations:

	1	 	Interpretation and Definitions
	 
	1.1	 	In this Agreement, unless otherwise specified in the context, the following terms shall be
interpreted according to their respective meanings defined in the following clauses.
	 
	1.2	 	Secured Debts: shall mean the following debts:

	 	1.2.1	 	all the principal, interest, overdue interest, liquidated damages, indemnities
which the Pledgor shall pay to the Pledgee under the Loan Agreement, as well as all
expenditures (including the lawyer’s fee) and other amounts paid by the Pledgee for
enforcing its rights under the Loan Agreement when the Pledgor breaches the Agreement;
	 
	 	1.2.2	 	all liquidated damages which the Pledgor shall pay to the Pledgee under the Share
Rights Agreement, the interest of the liquidated damages, the overdue interest, as well
as all expenditures (including the lawyer’s fee) and other amounts paid by the Pledgee
for enforcing its rights under the Share Rights Agreement when the Pledgor breaches the
Share Rights Agreement;
	 
	 	1.2.3	 	all royalties for trademark license, the liquidated damages and other relevant
fees which ICP Company shall pay to the Pledgee under the Trademark License Agreement, as
well as all expenditures (including the lawyer’s fee) and other amounts paid by the
Pledgee for enforcing its rights under the Trademark License Agreement when ICP Company
breaches the Agreement;
	 
	 	1.2.4	 	the technology transfer fee, technology license fee, technical service fee,
equipment assignment fee and/or equipment rental, etc., the liquidated damages and other
relevant fees, which ICP Company shall pay to the Pledgee under the Technical Services

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	 	 	 	Agreement, as well as all expenditures (including the lawyer’s fee) and other amounts
paid by the Pledgee for enforcing its rights under the Technical Services Agreement
when ICP Company breaches the Technical Services Agreement.

	1.3	 	Pledged Rights: shall mean the Pledgor’s shares in ICP Company and all other rights relevant
to such shares. Specifically, the Pledged Rights include but are not limited to the following
rights:

	 	1.3.1	 	all dividends, profit distributions, extra dividends, allocated shares and any
other kind of funds relevant to the Pledged Rights, as well as corresponding rights and
interests, which the Pledgor shall be entitled to receive from ICP Company at present or
in the future;
	 
	 	1.3.2	 	the rights enjoyed by the Pledgor in determining ICP Company’s operational
guidelines, investment plans and other major matters as well as on electing and changing
directors and supervisors, which are corresponding to the Pledged Rights it holds;
	 
	 	1.3.3	 	all interests warranted, confirmed and promised by other parties under ICP
Company’s articles of association and other organizational documents to the Pledgor;
	 
	 	1.3.4	 	the Pledgor’s right of claiming against any party to ICP Company’s articles of
association or any other organizational document for compensation due to any breach;
	 
	 	1.3.5	 	the Pledgor’s right of consenting to or opposing the rescission, amendment or
termination of ICP Company’s articles of association and other organizational documents
due to the Pledged Rights it holds;
	 
	 	1.3.6	 	Other powers and rights relevant to the Pledged Rights, which the Pledgor is
entitled to according to relevant laws and regulations of China as well as ICP Company’s
articles of association and other organizational documents.

	2	 	Pledge of Stock Rights
	 
	2.1	 	The Pledgor warrants that it will, pursuant to the Loan Agreement and the Share Rights
Agreement, pays off relevant debts to the Pledgee, and meanwhile provide guaranty for ICP
Company to perform the payment obligation and other relevant obligations under the Trademark
License Agreement and the Technical Services Agreement. Therefore, the Pledgor agrees to
pledge the Pledged Rights to the Pledgee.
	 
	2.2	 	The Pledgor shall, on the date of execution of this Agreement, submit to the Pledgee the
following documents:

	 	2.2.1	 	the investment certificate issued by ICP Company to the Pledgor evidencing that
the Pledgor lawfully holds the Pledged Stock Rights;
	 
	 	2.2.2	 	the written documents showing that ICP Company’s other shareholders agree with the
Pledgor on establishing the pledge of share rights under this Agreement;
	 
	 	2.2.3	 	all other materials and documents reasonably required by the Pledgee.

	2.3	 	The Pledgor shall deliver the capital contribution certificate to the Pledgee on the date of
effectiveness of this Agreement, and go through the procedures for record of modification of
the share register in ICP Company.
	 
	3	 	Scope of Security
	 
	3.1	 	The scope of security of the Pledged Stock Rights under this Agreement shall cover:

	 	3.1.1	 	the Secured Debts as defined in Article 1.2 of this Agreement;
	 
	 	3.1.2	 	the expenditures paid by the Pledgee for enforcing its right of pledge under this
Agreement.

	4	 	Term of Right of Pledge
	 
	4.1	 	The valid duration of the right of pledge which the Pledgee enjoys under this Agreement shall
commence on the effectiveness date of this Agreement until the three-year anniversary of the
date when the last sum of guaranteed debt is due.
	 
	5	 	Exercise of the Right of Pledge
	 
	5.1	 	In the event that the Pledgor fails to pay off its debts under the Loan Agreement or the
Share Rights Agreement to the Pledgee on time, or ICP Company fails to perform its payment
obligation or other relevant obligations to the Pledgee under the Trademark License Agreement
or the Technical Services Agreement, or the Pledgor breaches its responsibilities or

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		 	obligations under this Agreement, the Pledgee shall be entitled to, within a scope permitted
by the applicable laws, exercise the right of pledge at any time it considers appropriate
within the duration of
the right of pledge and in a method it considers appropriate. Such methods shall include but
not be limited to:

	 	5.1.1	 	negotiating with the Pledgor on paying off the Secured Debts by transferring to
the Pledgee the Pledged Rights;
	 
	 	5.1.2	 	selling off the Pledged Rights, and paying off the Secured Debts with the proceeds
from the sale;
	 
	 	5.1.3	 	retaining a competent institution to auction total or partial Pledged Rights;
and/or
	 
	 	5.1.4	 	disposing of the Pledged Rights by taking other appropriate measures permitted by
the applicable laws.

	5.2	 	In the process when the Pledgee disposes of the Pledged Rights according to the preceding
paragraph, the Pledgee shall be entitled to:

	 	5.2.1	 	substitute the Pledgor to exercise the powers or rights relevant to the Pledged
Rights as ICP Company’s shareholder;
	 
	 	5.2.2	 	pay necessary money for exercising any power or right imposed by this Agreement or
the law upon the Pledgee;
	 
	 	5.2.3	 	exercise in a way it considers appropriate or permit other person to exercise any
power or right under the Pledged Rights;
	 
	 	5.2.4	 	recover or claim the money payable to the Pledgor arising from the Pledged Rights
for paying off the Secured Debts;
	 
	 	5.2.5	 	with respect to claim by any person for the rights relevant to the Pledged Rights
in any respect, make settlement, reach reconciliation, resort to arbitration or
litigation proceedings or seek any other measures it considers appropriate;
	 
	 	5.2.6	 	take all other actions permitted by law for the purpose of enforcing any of its
rights under this Agreement.

	5.3	 	At the Pledgee’s request, the Pledgor must assist the Pledgee in obtaining all necessary
approvals or consents relevant to the Pledgee’s enforcement of its credit rights and the right
of pledge.
	 
	5.4	 	Within the duration of the right of pledge, the Pledgee shall be entitled to collect the
legal fruits of the Pledged Rights.
	 
	5.5	 	All the money collected by the Pledgee from the exercise of its right of pledge (including
but not limited to the price obtained from disposing of the Pledged Rights and any proceeds
derived from the Pledged Rights) shall be put into use in the following order on the premise
of not violating other clauses of this Agreement:

	 	5.5.1	 	It shall be at first used to pay all the expenses incurred to the Pledgee due to
exercise of the right of pledge and/or other rights under this Agreement;
	 
	 	5.5.2	 	Then, it shall be used by the Pledgee to pay off the Secured Debts according to
law;
	 
	 	5.5.3	 	If there is still remaining amount after the Secured Debts are paid off, the said
amount shall be paid to the Pledgor or the person who is entitled to receive it, with no
interest being paid.

	6	 	Rescission of the Right of Pledge
	 
	6.1	 	If, at any time within the effective duration of the right of pledge, the secured debts are
fully paid off, and the Pledgor no longer bears any obligation or liability under this
Agreement, the Pledgee’s right of pledge under this Agreement shall be extinct on the date
when all the Secured Debts are paid off. In such a case, at the Pledgor’s request, the Pledgee
shall execute the written documents on the pledge of shares created under this Agreement and
deliver them to the Pledgor, or assist the Pledgor in going through other procedures for
rescinding the pledge of shares under this Agreement.
	 
	6.2	 	Unless otherwise prescribed in the preceding paragraph, the pledge of shares under this
Agreement shall not be rescinded without the Pledgee’s prior written consent.
	 
	7	 	Nature of Security
	 
	7.1	 	The guaranty under this Agreement shall not be affected by other guaranties held by the
Pledgee regarding the Secured Debts, and shall not affect the effectiveness of those other

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	 	 	securities, either.
	 
	7.2	 	Neither the security nor the Pledgee’s rights under this Agreement shall be rescinded or
affected due to any of the following circumstances:

	 	7.2.1	 	the Pledgee’s offering a grace period to, rescission or mitigation of any person’s
debts at any time;
	 
	 	7.2.2	 	any amendment, modification or supplement to the Loan Agreement, the Share Rights
Agreement, the Trademark License Agreement and/or the Technical Services Agreement;
	 
	 	7.2.3	 	any disposal, modification or rescission of any other guaranty of the relevant
secured debts;
	 
	 	7.2.4	 	reconciliation reached on the claims raised by any person between the Pledgee and
such person;
	 
	 	7.2.5	 	any delay, act, nonfeasance or mistake arising out of the Pledgee’s exercise of
its rights;
	 
	 	7.2.6	 	any circumstance which the Loan Agreement, the Share Rights Agreement, the
Trademark License Agreement and/or the Technical Services Agreement or the performance
thereof are considered ineffective; or
	 
	 	7.2.7	 	any other event which might otherwise affect the Pledgor’s obligations under this
Agreement.

	8	 	Public Notarial Procedures
	 
	8.1	 	After the effectiveness of this Agreement, the Pledgor shall, at the Pledgee’s request,
cooperate with the Pledgee in going together to lawful public notary office to go through the
notarial procedures as required by this Agreement, and shall provide all necessary cooperation
as per the public notary office’s requirements.
	 
	8.2	 	All expenses incurred from the above mentioned notarial procedures shall be solely borne by
the Pledgee.
	 
	9	 	Special Provisions
	 
	9.1	 	Without the Pledgee’s prior written consent, the Pledgor shall not assign any right it may
enjoy under this Agreement or any obligation it shall bear hereunder to any other party.
	 
	9.2	 	The Pledgee shall be entitled to assign any of its rights or obligations under this Agreement
to any third party at any time without being consented by the Pledgor. In such a case, the
Pledgor shall unconditionally cooperate with the Pledgee in going through relevant procedures
for assignment of the rights and obligations, including but not limited to execution of
relevant agreement on change of contractual parties.
	 
	9.3	 	After the procedures for pledge of the shares under this Agreement are completed, unless the
Pledgee makes a reverse decision and informs the Pledgor, the Pledgor shall be obligated to
continue abiding by the legal provisions concerning the Pledged Rights, performing all rights
and obligations relevant to the Pledged Rights (including but not limited to exercising all
its powers and rights relevant to the Pledged Rights under ICP Company’s articles of
association), and fulfilling the prudence and credibility obligations which a shareholder
shall fulfill.
	 
	9.4	 	The Pledgee shall bear no obligation or legal liability for the Pledged Rights, nor does it
have to perform any obligation that the Pledgor shall bear for the Pledged Rights. Without
prejudice to the Pledgee’s rights under this Agreement, the Pledgee shall bear no obligation
or legal liability to others for the Pledged Rights under this Agreement.
	 
	9.5	 	The Pledgor must timely notify the Pledgee of any event that might affect the Pledged Stock
Rights or the value of the Pledged Stock Rights or might impede the Pledgor from performing
its rights as ICP Company’s shareholder or harm or delay its performing such rights.
	 
	9.6	 	Without the Pledgee’s prior consent, the Pledgor may not conduct any of the following acts:

	 	9.6.1	 	Amending or modifying in any other way ICP Company’s articles of association;
	 
	 	9.6.2	 	Establishing any further guaranty on the Pledged Rights beside the pledge created
under this Agreement;
	 
	 	9.6.3	 	Disposing of any interest of the Pledged Rights in any way;
	 
	 	9.6.4	 	Conducting any act that might harm the Pledgee’s Pledged Rights or any of its
rights under this Agreement.

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	9.7	 	Without the Pledgee’s written consent, the Pledgor shall not have the Pledged Rights
transferred or re-pledged, or dispose of the Pledged Rights in any other way which may harm
the right of pledge enjoyed by the Pledgee under this Agreement.
	 
	10	 	Representations, Commitments and Warranties
	 
	10.1	 	The pledgor hereby makes representations, commitments and warranties to the Pledgee as
follows:

	 	10.1.1	 	The Pledgor has lawful eligibility and necessary power to conclude this Agreement and
is able to entirely perform any of its obligations under this Agreement;
	 
	 	10.1.2	 	The Pledgor has lawfully performed its obligation of contributing investments to ICP
Company; is the only holder of the Pledged Rights; and has lawful, complete and full
ownership over all the Pledged Rights under this Agreement;
	 
	 	10.1.3	 	ICP Company’s shareholders’ meeting has adopted a resolution on consenting to the
pledge of shares pursuant to this Agreement;
	 
	 	10.1.4	 	Except the pledge established in this Agreement, the Pledgor has not established or
permitted others to establish any security right on the Pledged Rights without the
Pledgee’s prior written consent; the Pledged Rights are involved in no ownership dispute,
are not distained or limited in other legal proceedings, but may be pledged and
transferred according to the applicable laws;
	 
	 	10.1.5	 	There is neither existing or pending litigation, arbitration or administrative
proceedings against the Pledged Rights and/or the Pledgor nor any such threat;
	 
	 	10.1.6	 	The Pledgor’s execution of this Agreement, exercise of the rights under this Agreement,
or performance of the obligations under this Agreement will not violate any document or
legal provision applicable to the Pledgor or its properties;
	 
	 	10.1.7	 	The pledge created under this Agreement constitutes an effective security of the
secured debts, may be implemented according to its clauses, and shall not be restricted
by any other’s rights, interests or claims at a preferential or equal status;
	 
	 	10.1.8	 	All documents delivered by the Pledgor to the Pledgee and relevant to this Agreement
are authentic, complete and accurate in all substantive aspects, and there is no omission
that might cause any information in such documents to be in any way incorrect or
misleading;
	 
	 	10.1.9	 	This Agreement constitutes lawful, effective and binding obligations to the Pledgor,
and may be subject to compulsory enforcement according to its clauses upon application.

	10.2	 	The Pledgee hereby makes representations, commitments and warranties to the Pledgor:

	 	10.2.1	 	The Pledgee is a lawfully established and validly existing limited liability company,
has the right to conclude this Agreement and is able to perform its obligations under
this Agreement.
	 
	 	10.2.2	 	The Pledgee has obtained all authorizations and consents for executing and performing
this Agreement.

	11	 	Breach Liability
	 
	11.1	 	If Party A or Party B (each, a “Party”) directly or indirectly violates any provision
hereunder or fails to perform or fails to timely and fully perform any of its obligations
hereunder and thus constitutes a breach of this Agreement, the non-defaulting Party (the
“Non-Defaulting Party”) shall have the right to send a written notification requiring the
defaulting Party (the “Defaulting Party”) to make corrections, take adequate, effective and
timely measures to eliminate the effect thus caused, and indemnify the Non-Defaulting Party
any losses suffered from the Defaulting Party’s breach of contract.
	 
	11.2	 	Upon occurrence of any breach of contract, if the Non-Defaulting Party, based on reasonable
and objective judgment, believes that such breach of contract has caused it impossible or
unfair for the Non-Defaulting Party to perform its corresponding obligations hereunder, then
the Non-Defaulting Party may notify the Defaulting Party in writing that it will suspend its
performance of its corresponding obligations hereunder, until the Defaulting Party has stopped
its breach of contract, taken adequate, effective and timely measures to eliminate the effect

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	 	 	thus caused, and indemnified the Non-Defaulting Party any losses suffered from the Defaulting
Party’s breach of contract.
	 
	11.3	 	The Non-Defaulting Party’s losses to be indemnified by the Defaulting Party due to its breach
of contract shall include the direct economic losses suffered by the Non-Defaulting Party due
to the breach of contract and any expectable indirect losses and additional fees and costs,
including but not limited to the lawyer’s fee, legal cost, arbitration cost, financial cost
and travel cost, etc.
	 
	12	 	Force Majeure
	 
	12.1	 	A Force Majeure Event refers to any event uncontrollable, unpredictable, or unavoidable even
predicted by the Parties hereunder, which interferes, affects or delays any Party’s
performance of the whole or part of its obligations hereunder. Such events shall include,
without limitation, the government’s act, acts of God, war, hacker’s attack or any other
similar event.
	 
	12.2	 	Any Party suffering from a Force Majeure Event may suspend its performance of its relevant
obligations hereunder thus prevented, without having to undertake any liability for breach of
contract, until the effect of such Force Majeure Event is eliminated. However, such affected
Party shall try its best to overcome such Force Majeure Event and reduce its adverse effect.
	 
	12.3	 	The Party affected by a Force Majeure Event shall provide the other Party with a legal
certificate issued by the local notary public (or any other competent organ) for certifying
such Force Majeure Event; otherwise, the other Party may request it to undertake breach
liability according to this Agreement.
	 
	13	 	Effectiveness, Amendment and Termination
	 
	13.1	 	This Agreement shall become effective upon the satisfaction of the following conditions:

	 	13.1.1	 	The pledgor and the Pledgee have formally executed this Agreement;
	 
	 	13.1.2	 	The pledge of the shares under this Agreement has been recorded in ICP Company’s
register of shareholders.

	13.2	 	Both parties may, after negotiations, amend this Agreement in the form of a written agreement
at any time.
	 
	13.3	 	This Agreement shall be terminated when any of the following circumstances arises:

	 	13.3.1	 	The duration of the right of pledge has elapsed;
	 
	 	13.3.2	 	Both parties rescind the pledge of the shares under this Agreement according to the
clause of “Rescission of the Right of Pledge” in this Agreement;
	 
	 	13.3.3	 	The Pledgee and the Pledgor agree after negotiations to terminate this Agreement;
	 
	 	13.3.4	 	The Pledgee unilaterally consents on terminating this Agreement in advance.

	13.4	 	The early termination of this Agreement shall not affect either party’s rights or obligations
accrued under this Agreement prior to the date when this Agreement was early terminated.
	 
	14	 	Dispute Settlement
	 
	14.1	 	Any dispute arising out of interpretation or performance hereof shall be settled through
friendly negotiation between the Parties.
	 
	14.2	 	If such negotiation fails, both Parties shall submit such dispute to China International
Economic and Trade Arbitration Commission for arbitration according its current arbitration
rules. The place of arbitration shall be Beijing, and the language of arbitration shall be
Chinese. The arbitration award shall be final and binding on both Parties.
	 
	14.3	 	The formation, effectiveness, performance and interpretation hereof as well as dispute
settlement shall be governed by the laws of the People’s Republic of China.
	 
	15	 	Miscellaneous
	 
	15.1	 	This Agreement is executed in triplicate, with each Party holding one, one copy for notary,
all of which shall be of the same legal effect.
	 
	15.2	 	The headings used in this Agreement are for convenience only, and shall not affect the
interpretation of any provision hereof.

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	15.3	 	Both Parties may modify and supplement this Agreement through written agreements. Such
written agreement of modification or supplementation executed by both Parties shall constitute
a part of, and be of the same legal effect as, this Agreement.
	 
	15.4	 	If any provision hereunder is held invalid or unenforceable in whole or in part due to
violating laws or regulations or any other reason, the affected part of such provision shall
be deemed deleted from the Agreement. The deletion of such affected part shall not affect the
validity and enforceability of the other parts of such provision or that of other provisions
hereof. Both Parties shall negotiate and enter into new provisions so as to replace such
invalid or unenforceable provision.
	 
	15.5	 	Unless otherwise provided, any Party’s failure or delay in exercising any right, power or
privilege shall not be deemed as a waiver of such right, power or privilege. Any single or
partial exercise of any right, power or privilege shall not preclude exercise of any other
right, power or privilege.
	 
	15.6	 	This Agreement constitutes the entire agreement between the Parties with respect to the
subject matter hereof and supersede any and all previous or simultaneous oral and written
agreements, understandings and communication between the Parties relating to such subject
matter. Unless otherwise expressly provided herein, there shall not be any other express or
implied obligations or undertakings between the Parties.
	 
	15.7	 	This Agreement shall be binding upon both parties and their respective successors and
qualified assignees.
	 
	15.8	 	Any other matters not contemplated hereunder shall be subject to further negotiation between
the Parties.

 
	 	 	 	 	 	 	 	 	 
	Shareholder	 	 	 	SINA.com Technology
(China) Co., Ltd.	 	 
	 
	 	 	 	 	 	 	 	 
	Handwritten Signature:

	 	/s/
	 	Authorized Representative:
	 	/s/
	 	 
	 

	 	 
	 	 	 	 	 	 

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Share Pledge Agreement

This Share Pledge Agreement is entered into in Haidian District, Beijing between the following
parties on 18 (Day) 08 (Month) 2007 (Year):

Party A: GM Xie (hereinafter referred to as the “Pledgor”)

ID No.:

Party B: SINA.com Technology (China) Co., Ltd. (hereinafter referred to as the “Pledgee”)

Address: Room 1506, Ideal Plaza, 58 Bei Si Huan Xi Road, Haidian District, Beijing

Whereas:

	(1)	 	The Pledgor is a shareholder of Beijing Sina Internet Information Service Co., Ltd.
(hereinafter referred to as “ICP Company”), and owns 26.75% of ICP Company’s shares;
	 
	(2)	 	All of the Pledgor’s investments in ICP Company were sourced from the loan(s) provided by the
Pledgee to the Pledgor in accordance with an agreement between the Pledgor and the Pledgee
regarding the aforesaid loan(s) (hereinafter referred to as the “Loan Agreement”), the Pledgor
bears RMB 5,350,000 Yuan of debt to the Pledgee;
	 
	(3)	 	The Pledgor and the Pledgee entered into an Agreement on Authorization to Exercise
Shareholder’s Voting Power (the “Share Rights
Agreement”) on 18 (Day) 08 (Month) 2007 (Year), and according to the Share Rights Agreement, in the case that
the Pledgor breaches the Share Rights Agreement, the Pledgor shall pay liquidated damages;
	 
	(4)	 	ICP Company and the Pledgee entered into a “Trademark License Agreement” on 18
(Day) 08 (Month) 2007 (Year), and according to the Trademark License
Agreement, ICP Company shall pay corresponding royalties for trademark licensed by the Pledgee
to ICP Company;
	 
	(5)	 	ICP Company and the Pledgee entered into a “Technical Services Agreement” on 18
(Day) 08 (Month) 2007 (Year), and according to the Technical Service
Agreement, ICP Company shall, as the case may be, pay corresponding technology transfer fee,
technology license fee, technical service fee, equipment assignment fee and/or equipment
rental, etc. to the Pledgee;
	 
	(6)	 	The Pledgor agrees to pledge all of its shares in ICP Company and all other rights relevant
to the said share rights to the Pledgee as a collateral security for the Pledgor to pay off
all debts to the Pledgee and for ICP Company to perform its payment obligation pursuant to the
Trademark License Agreement and the Technical Services Agreement and other relevant
obligations; the Pledgee agrees to accept such security.

Therefore, both parties agree as follows after equal and friendly negotiations:

	1	 	Interpretation and Definitions
	 
	1.1	 	In this Agreement, unless otherwise specified in the context, the following terms shall be
interpreted according to their respective meanings defined in the following clauses.
	 
	1.2	 	Secured Debts: shall mean the following debts:

	 	1.2.1	 	all the principal, interest, overdue interest, liquidated damages, indemnities
which the Pledgor shall pay to the Pledgee under the Loan Agreement, as well as all
expenditures (including the lawyer’s fee) and other amounts paid by the Pledgee for
enforcing its rights under the Loan Agreement when the Pledgor breaches the Agreement;
	 
	 	1.2.2	 	all liquidated damages which the Pledgor shall pay to the Pledgee under the Share
Rights Agreement, the interest of the liquidated damages, the overdue interest, as well
as all expenditures (including the lawyer’s fee) and other amounts paid by the Pledgee
for enforcing its rights under the Share Rights Agreement when the Pledgor breaches the
Share Rights Agreement;
	 
	 	1.2.3	 	all royalties for trademark license, the liquidated damages and other relevant
fees which ICP Company shall pay to the Pledgee under the Trademark License Agreement, as
well as all expenditures (including the lawyer’s fee) and other amounts paid by the
Pledgee for enforcing its rights under the Trademark License Agreement when ICP Company
breaches the Agreement;
	 
	 	1.2.4	 	the technology transfer fee, technology license fee, technical service fee,
equipment assignment fee and/or equipment rental, etc., the liquidated damages and other
relevant fees, which ICP Company shall pay to the Pledgee under the Technical Services

-1-

 

	 	 	 	Agreement, as well as all expenditures (including the lawyer’s fee) and other amounts
paid by the Pledgee for enforcing its rights under the Technical Services Agreement when
ICP Company breaches the Technical Services Agreement.

	1.3	 	Pledged Rights: shall mean the Pledgor’s shares in ICP Company and all other rights relevant
to such shares. Specifically, the Pledged Rights include but are not limited to the following
rights:

	 	1.3.1	 	all dividends, profit distributions, extra dividends, allocated shares and any
other kind of funds relevant to the Pledged Rights, as well as corresponding rights and
interests, which the Pledgor shall be entitled to receive from ICP Company at present or
in the future;
	 
	 	1.3.2	 	the rights enjoyed by the Pledgor in determining ICP Company’s operational
guidelines, investment plans and other major matters as well as on electing and changing
directors and supervisors, which are corresponding to the Pledged Rights it holds;
	 
	 	1.3.3	 	all interests warranted, confirmed and promised by other parties under ICP
Company’s articles of association and other organizational documents to the Pledgor;
	 
	 	1.3.4	 	the Pledgor’s right of claiming against any party to ICP Company’s articles of
association or any other organizational document for compensation due to any breach;
	 
	 	1.3.5	 	the Pledgor’s right of consenting to or opposing the rescission, amendment or
termination of ICP Company’s articles of association and other organizational documents
due to the Pledged Rights it holds;
	 
	 	1.3.6	 	Other powers and rights relevant to the Pledged Rights, which the Pledgor is
entitled to according to relevant laws and regulations of China as well as ICP Company’s
articles of association and other organizational documents.

	2	 	Pledge of Stock Rights
	 
	2.1	 	The Pledgor warrants that it will, pursuant to the Loan Agreement and the Share Rights
Agreement, pays off relevant debts to the Pledgee, and meanwhile provide guaranty for ICP
Company to perform the payment obligation and other relevant obligations under the Trademark
License Agreement and the Technical Services Agreement. Therefore, the Pledgor agrees to
pledge the Pledged Rights to the Pledgee.
	 
	2.2	 	The Pledgor shall, on the date of execution of this Agreement, submit to the Pledgee the
following documents:

	 	2.2.1	 	the investment certificate issued by ICP Company to the Pledgor evidencing that
the Pledgor lawfully holds the Pledged Stock Rights;
	 
	 	2.2.2	 	the written documents showing that ICP Company’s other shareholders agree with the
Pledgor on establishing the pledge of share rights under this Agreement;
	 
	 	2.2.3	 	all other materials and documents reasonably required by the Pledgee.

	2.3	 	The Pledgor shall deliver the capital contribution certificate to the Pledgee on the date of
effectiveness of this Agreement, and go through the procedures for record of modification of
the share register in ICP Company.
	 
	3	 	Scope of Security
	 
	3.1	 	The scope of security of the Pledged Stock Rights under this Agreement shall cover:

	 	3.1.1	 	the Secured Debts as defined in Article 1.2 of this Agreement;
	 
	 	3.1.2	 	the expenditures paid by the Pledgee for enforcing its right of pledge under this
Agreement.

	4	 	Term of Right of Pledge
	 
	4.1	 	The valid duration of the right of pledge which the Pledgee enjoys under this Agreement shall
commence on the effectiveness date of this Agreement until the three-year anniversary of the
date when the last sum of guaranteed debt is due.
	 
	5	 	Exercise of the Right of Pledge
	 
	5.1	 	In the event that the Pledgor fails to pay off its debts under the Loan Agreement or the
Share Rights Agreement to the Pledgee on time, or ICP Company fails to perform its payment
obligation or other relevant obligations to the Pledgee under the Trademark License Agreement
or the Technical Services Agreement, or the Pledgor breaches its responsibilities or

-2-

 

	 	 	obligations under this Agreement, the Pledgee shall be entitled to, within a scope permitted
by the applicable laws, exercise the right of pledge at any time it considers appropriate
within the duration of the right of pledge and in a method it considers appropriate. Such
methods shall
include but not be limited to:

	 	5.1.1	 	negotiating with the Pledgor on paying off the Secured Debts by transferring to
the Pledgee the Pledged Rights;
	 
	 	5.1.2	 	selling off the Pledged Rights, and paying off the Secured Debts with the proceeds
from the sale;
	 
	 	5.1.3	 	retaining a competent institution to auction total or partial Pledged Rights;
and/or
	 
	 	5.1.4	 	disposing of the Pledged Rights by taking other appropriate measures permitted by
the applicable laws.

	5.2	 	In the process when the Pledgee disposes of the Pledged Rights according to the preceding
paragraph, the Pledgee shall be entitled to:

	 	5.2.1	 	substitute the Pledgor to exercise the powers or rights relevant to the Pledged
Rights as ICP Company’s shareholder;
	 
	 	5.2.2	 	pay necessary money for exercising any power or right imposed by this Agreement or
the law upon the Pledgee;
	 
	 	5.2.3	 	exercise in a way it considers appropriate or permit other person to exercise any
power or right under the Pledged Rights;
	 
	 	5.2.4	 	recover or claim the money payable to the Pledgor arising from the Pledged Rights
for paying off the Secured Debts;
	 
	 	5.2.5	 	with respect to claim by any person for the rights relevant to the Pledged Rights
in any respect, make settlement, reach reconciliation, resort to arbitration or
litigation proceedings or seek any other measures it considers appropriate;
	 
	 	5.2.6	 	take all other actions permitted by law for the purpose of enforcing any of its
rights under this Agreement.

	5.3	 	At the Pledgee’s request, the Pledgor must assist the Pledgee in obtaining all necessary
approvals or consents relevant to the Pledgee’s enforcement of its credit rights and the right
of pledge.
	 
	5.4	 	Within the duration of the right of pledge, the Pledgee shall be entitled to collect the
legal fruits of the Pledged Rights.
	 
	5.5	 	All the money collected by the Pledgee from the exercise of its right of pledge (including
but not limited to the price obtained from disposing of the Pledged Rights and any proceeds
derived from the Pledged Rights) shall be put into use in the following order on the premise
of not violating other clauses of this Agreement:

	 	5.5.1	 	It shall be at first used to pay all the expenses incurred to the Pledgee due to
exercise of the right of pledge and/or other rights under this Agreement;
	 
	 	5.5.2	 	Then, it shall be used by the Pledgee to pay off the Secured Debts according to
law;
	 
	 	5.5.3	 	If there is still remaining amount after the Secured Debts are paid off, the said
amount shall be paid to the Pledgor or the person who is entitled to receive it, with no
interest being paid.

	6	 	Rescission of the Right of Pledge
	 
	6.1	 	If, at any time within the effective duration of the right of pledge, the secured debts are
fully paid off, and the Pledgor no longer bears any obligation or liability under this
Agreement, the Pledgee’s right of pledge under this Agreement shall be extinct on the date
when all the Secured Debts are paid off. In such a case, at the Pledgor’s request, the Pledgee
shall execute the written documents on the pledge of shares created under this Agreement and
deliver them to the Pledgor, or assist the Pledgor in going through other procedures for
rescinding the pledge of shares under this Agreement.
	 
	6.2	 	Unless otherwise prescribed in the preceding paragraph, the pledge of shares under this
Agreement shall not be rescinded without the Pledgee’s prior written consent.
	 
	7	 	Nature of Security
	 
	7.1	 	The guaranty under this Agreement shall not be affected by other guaranties held by the
Pledgee regarding the Secured Debts, and shall not affect the effectiveness of those other

-3-

 

	 	 	securities, either.

	7.2	 	Neither the security nor the Pledgee’s rights under this Agreement shall be rescinded or
affected due to any of the following circumstances:

	 	7.2.1	 	the Pledgee’s offering a grace period to, rescission or mitigation of any person’s
debts at any time;
	 
	 	7.2.2	 	any amendment, modification or supplement to the Loan Agreement, the Share Rights
Agreement, the Trademark License Agreement and/or the Technical Services Agreement;
	 
	 	7.2.3	 	any disposal, modification or rescission of any other guaranty of the relevant
secured debts;
	 
	 	7.2.4	 	reconciliation reached on the claims raised by any person between the Pledgee and
such person;
	 
	 	7.2.5	 	any delay, act, nonfeasance or mistake arising out of the Pledgee’s exercise of
its rights;
	 
	 	7.2.6	 	any circumstance which the Loan Agreement, the Share Rights Agreement, the
Trademark License Agreement and/or the Technical Services Agreement or the performance
thereof are considered ineffective; or
	 
	 	7.2.7	 	any other event which might otherwise affect the Pledgor’s obligations under this
Agreement.

	8	 	Public Notarial Procedures
	 
	8.1	 	After the effectiveness of this Agreement, the Pledgor shall, at the Pledgee’s request,
cooperate with the Pledgee in going together to lawful public notary office to go through the
notarial procedures as required by this Agreement, and shall provide all necessary cooperation
as per the public notary office’s requirements.
	 
	8.2	 	All expenses incurred from the above mentioned notarial procedures shall be solely borne by
the Pledgee.
	 
	9	 	Special Provisions
	 
	9.1	 	Without the Pledgee’s prior written consent, the Pledgor shall not assign any right it may
enjoy under this Agreement or any obligation it shall bear hereunder to any other party.
	 
	9.2	 	The Pledgee shall be entitled to assign any of its rights or obligations under this Agreement
to any third party at any time without being consented by the Pledgor. In such a case, the
Pledgor shall unconditionally cooperate with the Pledgee in going through relevant procedures
for assignment of the rights and obligations, including but not limited to execution of
relevant agreement on change of contractual parties.
	 
	9.3	 	After the procedures for pledge of the shares under this Agreement are completed, unless the
Pledgee makes a reverse decision and informs the Pledgor, the Pledgor shall be obligated to
continue abiding by the legal provisions concerning the Pledged Rights, performing all rights
and obligations relevant to the Pledged Rights (including but not limited to exercising all
its powers and rights relevant to the Pledged Rights under ICP Company’s articles of
association), and fulfilling the prudence and credibility obligations which a shareholder
shall fulfill.
	 
	9.4	 	The Pledgee shall bear no obligation or legal liability for the Pledged Rights, nor does it
have to perform any obligation that the Pledgor shall bear for the Pledged Rights. Without
prejudice to the Pledgee’s rights under this Agreement, the Pledgee shall bear no obligation
or legal liability to others for the Pledged Rights under this Agreement.
	 
	9.5	 	The Pledgor must timely notify the Pledgee of any event that might affect the Pledged Stock
Rights or the value of the Pledged Stock Rights or might impede the Pledgor from performing
its rights as ICP Company’s shareholder or harm or delay its performing such rights.
	 
	9.6	 	Without the Pledgee’s prior consent, the Pledgor may not conduct any of the following acts:

	 	9.6.1	 	Amending or modifying in any other way ICP Company’s articles of association;
	 
	 	9.6.2	 	Establishing any further guaranty on the Pledged Rights beside the pledge created
under this Agreement;
	 
	 	9.6.3	 	Disposing of any interest of the Pledged Rights in any way;
	 
	 	9.6.4	 	Conducting any act that might harm the Pledgee’s Pledged Rights or any of its
rights under this Agreement.

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	9.7	 	Without the Pledgee’s written consent, the Pledgor shall not have the Pledged Rights
transferred or re-pledged, or dispose of the Pledged Rights in any other way which may harm
the right of pledge enjoyed by the Pledgee under this Agreement.
	 
	10	 	Representations, Commitments and Warranties
	 
	10.1	 	The pledgor hereby makes representations, commitments and warranties to the Pledgee as
follows:

	 	10.1.1	 	The Pledgor has lawful eligibility and necessary power to conclude this Agreement and
is able to entirely perform any of its obligations under this Agreement;
	 
	 	10.1.2	 	The Pledgor has lawfully performed its obligation of contributing investments to ICP
Company; is the only holder of the Pledged Rights; and has lawful, complete and full
ownership over all the Pledged Rights under this Agreement;
	 
	 	10.1.3	 	ICP Company’s shareholders’ meeting has adopted a resolution on consenting to the
pledge of shares pursuant to this Agreement;
	 
	 	10.1.4	 	Except the pledge established in this Agreement, the Pledgor has not established or
permitted others to establish any security right on the Pledged Rights without the
Pledgee’s prior written consent; the Pledged Rights are involved in no ownership dispute,
are not distained or limited in other legal proceedings, but may be pledged and
transferred according to the applicable laws;
	 
	 	10.1.5	 	There is neither existing or pending litigation, arbitration or administrative
proceedings against the Pledged Rights and/or the Pledgor nor any such threat;
	 
	 	10.1.6	 	The Pledgor’s execution of this Agreement, exercise of the rights under this Agreement,
or performance of the obligations under this Agreement will not violate any document or
legal provision applicable to the Pledgor or its properties;
	 
	 	10.1.7	 	The pledge created under this Agreement constitutes an effective security of the
secured debts, may be implemented according to its clauses, and shall not be restricted
by any other’s rights, interests or claims at a preferential or equal status;
	 
	 	10.1.8	 	All documents delivered by the Pledgor to the Pledgee and relevant to this Agreement
are authentic, complete and accurate in all substantive aspects, and there is no omission
that might cause any information in such documents to be in any way incorrect or
misleading;
	 
	 	10.1.9	 	This Agreement constitutes lawful, effective and binding obligations to the Pledgor,
and may be subject to compulsory enforcement according to its clauses upon application.

	10.2	 	The Pledgee hereby makes representations, commitments and warranties to the Pledgor:

	 	10.2.1	 	The Pledgee is a lawfully established and validly existing limited liability company,
has the right to conclude this Agreement and is able to perform its obligations under
this Agreement.
	 
	 	10.2.2	 	The Pledgee has obtained all authorizations and consents for executing and performing
this Agreement.

	11	 	Breach Liability
	 
	11.1	 	If Party A or Party B (each, a “Party”) directly or indirectly violates any provision
hereunder or fails to perform or fails to timely and fully perform any of its obligations
hereunder and thus constitutes a breach of this Agreement, the non-defaulting Party (the
“Non-Defaulting Party”) shall have the right to send a written notification requiring the
defaulting Party (the “Defaulting Party”) to make corrections, take adequate, effective and
timely measures to eliminate the effect thus caused, and indemnify the Non-Defaulting Party
any losses suffered from the Defaulting Party’s breach of contract.
	 
	11.2	 	Upon occurrence of any breach of contract, if the Non-Defaulting Party, based on reasonable
and objective judgment, believes that such breach of contract has caused it impossible or
unfair for the Non-Defaulting Party to perform its corresponding obligations hereunder, then
the Non-Defaulting Party may notify the Defaulting Party in writing that it will suspend its
performance of its corresponding obligations hereunder, until the Defaulting Party has stopped
its breach of contract, taken adequate, effective and timely measures to eliminate the effect

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	 	 	thus caused, and indemnified the Non-Defaulting Party any losses suffered from the Defaulting
Party’s breach of contract.

	11.3	 	The Non-Defaulting Party’s losses to be indemnified by the Defaulting Party due to its breach
of contract shall include the direct economic losses suffered by the Non-Defaulting Party due
to the breach of contract and any expectable indirect losses and additional fees and costs,
including but not limited to the lawyer’s fee, legal cost, arbitration cost, financial cost
and travel cost, etc.
	 
	12	 	Force Majeure
	 
	12.1	 	A Force Majeure Event refers to any event uncontrollable, unpredictable, or unavoidable even
predicted by the Parties hereunder, which interferes, affects or delays any Party’s
performance of the whole or part of its obligations hereunder. Such events shall include,
without limitation, the government’s act, acts of God, war, hacker’s attack or any other
similar event.
	 
	12.2	 	Any Party suffering from a Force Majeure Event may suspend its performance of its relevant
obligations hereunder thus prevented, without having to undertake any liability for breach of
contract, until the effect of such Force Majeure Event is eliminated. However, such affected
Party shall try its best to overcome such Force Majeure Event and reduce its adverse effect.
	 
	12.3	 	The Party affected by a Force Majeure Event shall provide the other Party with a legal
certificate issued by the local notary public (or any other competent organ) for certifying
such Force Majeure Event; otherwise, the other Party may request it to undertake breach
liability according to this Agreement.
	 
	13	 	Effectiveness, Amendment and Termination
	 
	13.1	 	This Agreement shall become effective upon the satisfaction of the following conditions:

	 	13.1.1	 	The pledgor and the Pledgee have formally executed this Agreement;
	 
	 	13.1.2	 	The pledge of the shares under this Agreement has been recorded in ICP Company’s
register of shareholders.

	13.2	 	Both parties may, after negotiations, amend this Agreement in the form of a written agreement
at any time.
	 
	13.3	 	This Agreement shall be terminated when any of the following circumstances arises:

	 	13.3.1	 	The duration of the right of pledge has elapsed;
	 
	 	13.3.2	 	Both parties rescind the pledge of the shares under this Agreement according to the
clause of “Rescission of the Right of Pledge” in this Agreement;
	 
	 	13.3.3	 	The Pledgee and the Pledgor agree after negotiations to terminate this Agreement;
	 
	 	13.3.4	 	The Pledgee unilaterally consents on terminating this Agreement in advance.

	13.4	 	The early termination of this Agreement shall not affect either party’s rights or obligations
accrued under this Agreement prior to the date when this Agreement was early terminated.
	 
	14	 	Dispute Settlement
	 
	14.1	 	Any dispute arising out of interpretation or performance hereof shall be settled through
friendly negotiation between the Parties.
	 
	14.2	 	If such negotiation fails, both Parties shall submit such dispute to China International
Economic and Trade Arbitration Commission for arbitration according its current arbitration
rules. The place of arbitration shall be Beijing, and the language of arbitration shall be
Chinese. The arbitration award shall be final and binding on both Parties.
	 
	14.3	 	The formation, effectiveness, performance and interpretation hereof as well as dispute
settlement shall be governed by the laws of the People’s Republic of China.
	 
	15	 	Miscellaneous
	 
	15.1	 	This Agreement is executed in triplicate, with each Party holding one, one copy for notary,
all of which shall be of the same legal effect.
	 
	15.2	 	The headings used in this Agreement are for convenience only, and shall not affect the
interpretation of any provision hereof.

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	15.3	 	Both Parties may modify and supplement this Agreement through written agreements. Such
written agreement of modification or supplementation executed by both Parties shall constitute
a part of, and be of the same legal effect as, this Agreement.
	 
	15.4	 	If any provision hereunder is held invalid or unenforceable in whole or in part due to
violating laws or regulations or any other reason, the affected part of such provision shall
be deemed
deleted from the Agreement. The deletion of such affected part shall not affect the validity
and enforceability of the other parts of such provision or that of other provisions hereof.
Both Parties shall negotiate and enter into new provisions so as to replace such invalid or
unenforceable provision.
	 
	15.5	 	Unless otherwise provided, any Party’s failure or delay in exercising any right, power or
privilege shall not be deemed as a waiver of such right, power or privilege. Any single or
partial exercise of any right, power or privilege shall not preclude exercise of any other
right, power or privilege.
	 
	15.6	 	This Agreement constitutes the entire agreement between the Parties with respect to the
subject matter hereof and supersede any and all previous or simultaneous oral and written
agreements, understandings and communication between the Parties relating to such subject
matter. Unless otherwise expressly provided herein, there shall not be any other express or
implied obligations or undertakings between the Parties.
	 
	15.7	 	This Agreement shall be binding upon both parties and their respective successors and
qualified assignees.
	 
	15.8	 	Any other matters not contemplated hereunder shall be subject to further negotiation between
the Parties.

	 	 	 	 	 	 	 	 	 
	Shareholder	 	 	 	SINA.com Technology (China) Co., Ltd.	 	 
	 
	 	 	 	 	 	 	 	 
	Handwritten Signature:

	 	/s/
	 	Authorized Representative:
	 	/s/
	 	 
	 

	 	 
	 	 	 	 	 	 

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Share Pledge Agreement

This Share Pledge Agreement is entered into in Haidian District, Beijing between the following
parties on 31 (Day) 12 (Month) 2007 (Year):

Party A: D Duan (hereinafter referred to as the “Pledgor”)

ID No.:

Party B: SINA.com Technology (China) Co., Ltd. (hereinafter referred to as the “Pledgee”)

Address: Room 1506, Ideal Plaza, 58 Bei Si Huan Xi Road, Haidian District, Beijing

Whereas:

	(1)	 	The Pledgor is a shareholder of Beijing Star-Village Online Cultural Development Co., Ltd.
(hereinafter referred to as “StarVI”), and owns 30% of StarVI’s shares;
	 
	(2)	 	All of the Pledgor’s investments in StarVI were sourced from the loan(s) provided by the
Pledgee to the Pledgor in accordance with an agreement between the Pledgor and the Pledgee
regarding the aforesaid loan(s) (hereinafter referred to as the “Loan Agreement”), the Pledgor
bears RMB 3,000,000 Yuan of debt to the Pledgee;
	 
	(3)	 	The Pledgor and the Pledgee entered into an Agreement on Authorization to Exercise
Shareholder’s Voting Power (the “Share Rights Agreement”) on 31 (Day) 12
(Month) 2007 (Year), and according to the Share Rights Agreement, in the case that
the Pledgor breaches the Share Rights Agreement, the Pledgor shall pay liquidated damages;
	 
	(4)	 	StarVI Company and the Pledgee entered into a “Trademark License Agreement” on 31
(Day) 12 (Month) 2007 (Year), and according to the Trademark License
Agreement, StarVI Company shall pay corresponding royalties for trademark licensed by the
Pledgee to StarVI Company;
	 
	(5)	 	StarVI Company and the Pledgee entered into a “Technical Services Agreement” on 31
(Day) 12 (Month) 2007 (Year), and according to the Technical Service
Agreement, StarVI Company shall, as the case may be, pay corresponding technology transfer
fee, technology license fee, technical service fee, equipment assignment fee and/or equipment
rental, etc. to the Pledgee;
	 
	(6)	 	The Pledgor agrees to pledge all of its shares in StarVI Company and all other rights
relevant to the said share rights to the Pledgee as a collateral security for the Pledgor to
pay off all debts to the Pledgee and for StarVI Company to perform its payment obligation
pursuant to the Trademark License Agreement and the Technical Services Agreement and other
relevant obligations; the Pledgee agrees to accept such security.

Therefore, both parties agree as follows after equal and friendly negotiations:

	1	 	Interpretation and Definitions
	 
	1.1	 	In this Agreement, unless otherwise specified in the context, the following terms shall be
interpreted according to their respective meanings defined in the following clauses.
	 
	1.2	 	Secured Debts: shall mean the following debts:

	 	1.2.1	 	all the principal, interest, overdue interest, liquidated damages, indemnities
which the Pledgor shall pay to the Pledgee under the Loan Agreement, as well as all
expenditures (including the lawyer’s fee) and other amounts paid by the Pledgee for
enforcing its rights under the Loan Agreement when the Pledgor breaches the Agreement;
	 
	 	1.2.2	 	all liquidated damages which the Pledgor shall pay to the Pledgee under the Share
Rights Agreement, the interest of the liquidated damages, the overdue interest, as well
as all expenditures (including the lawyer’s fee) and other amounts paid by the Pledgee
for enforcing its rights under the Share Rights Agreement when the Pledgor breaches the
Share Rights Agreement;
	 
	 	1.2.3	 	all royalties for trademark license, the liquidated damages and other relevant
fees which StarVI Company shall pay to the Pledgee under the Trademark License Agreement,
as well as all expenditures (including the lawyer’s fee) and other amounts paid by the
Pledgee for enforcing its rights under the Trademark License Agreement when StarVI
Company breaches the Agreement;
	 
	 	1.2.4	 	the technology transfer fee, technology license fee, technical service fee,
equipment assignment fee and/or equipment rental, etc., the liquidated damages and other
relevant fees, which StarVI Company shall pay to the Pledgee under the Technical Services

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	 	 	 	Agreement, as well as all expenditures (including the lawyer’s fee) and other amounts
paid by the Pledgee for enforcing its rights under the Technical Services Agreement when
StarVI Company breaches the Technical Services Agreement.

	1.3	 	Pledged Rights: shall mean the Pledgor’s shares in StarVI Company and all other rights
relevant to such shares. Specifically, the Pledged Rights include but are not limited to the
following rights:

	 	1.3.1	 	all dividends, profit distributions, extra dividends, allocated shares and any
other kind of funds relevant to the Pledged Rights, as well as corresponding rights and
interests, which the Pledgor shall be entitled to receive from StarVI Company at present
or in the future;
	 
	 	1.3.2	 	the rights enjoyed by the Pledgor in determining StarVI Company’s operational
guidelines, investment plans and other major matters as well as on electing and changing
directors and supervisors, which are corresponding to the Pledged Rights it holds;
	 
	 	1.3.3	 	all interests warranted, confirmed and promised by other parties under StarVI
Company’s articles of association and other organizational documents to the Pledgor;
	 
	 	1.3.4	 	the Pledgor’s right of claiming against any party to StarVI Company’s articles of
association or any other organizational document for compensation due to any breach;
	 
	 	1.3.5	 	the Pledgor’s right of consenting to or opposing the rescission, amendment or
termination of StarVI Company’s articles of association and other organizational
documents due to the Pledged Rights it holds;
	 
	 	1.3.6	 	Other powers and rights relevant to the Pledged Rights, which the Pledgor is
entitled to according to relevant laws and regulations of China as well as StarVI
Company’s articles of association and other organizational documents.

	2	 	Pledge of Stock Rights
	 
	2.1	 	The Pledgor warrants that it will, pursuant to the Loan Agreement and the Share Rights
Agreement, pays off relevant debts to the Pledgee, and meanwhile provide guaranty for StarVI
Company to perform the payment obligation and other relevant obligations under the Trademark
License Agreement and the Technical Services Agreement. Therefore, the Pledgor agrees to
pledge the Pledged Rights to the Pledgee.
	 
	2.2	 	The Pledgor shall, on the date of execution of this Agreement, submit to the Pledgee the
following documents:

	 	2.2.1	 	the investment certificate issued by StarVI Company to the Pledgor evidencing that
the Pledgor lawfully holds the Pledged Stock Rights;
	 
	 	2.2.2	 	the written documents showing that StarVI Company’s other shareholders agree with
the Pledgor on establishing the pledge of share rights under this Agreement;
	 
	 	2.2.3	 	all other materials and documents reasonably required by the Pledgee.

	2.3	 	The Pledgor shall deliver the capital contribution certificate to the Pledgee on the date of
effectiveness of this Agreement, and go through the procedures for record of modification of
the share register in StarVI Company.
	 
	3	 	Scope of Security
	 
	3.1	 	The scope of security of the Pledged Stock Rights under this Agreement shall cover:

	 	3.1.1	 	the Secured Debts as defined in Article 1.2 of this Agreement;
	 
	 	3.1.2	 	the expenditures paid by the Pledgee for enforcing its right of pledge under this
Agreement.

	4	 	Term of Right of Pledge
	 
	4.1	 	The valid duration of the right of pledge which the Pledgee enjoys under this Agreement shall
commence on the effectiveness date of this Agreement until the three-year anniversary of the
date when the last sum of guaranteed debt is due.
	 
	5	 	Exercise of the Right of Pledge
	 
	5.1	 	In the event that the Pledgor fails to pay off its debts under the Loan Agreement or the
Share Rights Agreement to the Pledgee on time, or StarVI Company fails to perform its payment
obligation or other relevant obligations to the Pledgee under the Trademark License Agreement
or the Technical Services Agreement, or the Pledgor breaches its responsibilities or

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	 	 	obligations under this Agreement, the Pledgee shall be entitled to, within a scope permitted
by the applicable laws, exercise the right of pledge at any time it considers appropriate
within the
duration of the right of pledge and in a method it considers appropriate. Such methods shall
include but not be limited to:

	 	5.1.1	 	negotiating with the Pledgor on paying off the Secured Debts by transferring to
the Pledgee the Pledged Rights;
	 
	 	5.1.2	 	selling off the Pledged Rights, and paying off the Secured Debts with the proceeds
from the sale;
	 
	 	5.1.3	 	retaining a competent institution to auction total or partial Pledged Rights;
and/or
	 
	 	5.1.4	 	disposing of the Pledged Rights by taking other appropriate measures permitted by
the applicable laws.

	5.2	 	In the process when the Pledgee disposes of the Pledged Rights according to the preceding
paragraph, the Pledgee shall be entitled to:

	 	5.2.1	 	substitute the Pledgor to exercise the powers or rights relevant to the Pledged
Rights as StarVI Company’s shareholder;
	 
	 	5.2.2	 	pay necessary money for exercising any power or right imposed by this Agreement or
the law upon the Pledgee;
	 
	 	5.2.3	 	exercise in a way it considers appropriate or permit other person to exercise any
power or right under the Pledged Rights;
	 
	 	5.2.4	 	recover or claim the money payable to the Pledgor arising from the Pledged Rights
for paying off the Secured Debts;
	 
	 	5.2.5	 	with respect to claim by any person for the rights relevant to the Pledged Rights
in any respect, make settlement, reach reconciliation, resort to arbitration or
litigation proceedings or seek any other measures it considers appropriate;
	 
	 	5.2.6	 	take all other actions permitted by law for the purpose of enforcing any of its
rights under this Agreement.

	5.3	 	At the Pledgee’s request, the Pledgor must assist the Pledgee in obtaining all necessary
approvals or consents relevant to the Pledgee’s enforcement of its credit rights and the right
of pledge.
	 
	5.4	 	Within the duration of the right of pledge, the Pledgee shall be entitled to collect the
legal fruits of the Pledged Rights.
	 
	5.5	 	All the money collected by the Pledgee from the exercise of its right of pledge (including
but not limited to the price obtained from disposing of the Pledged Rights and any proceeds
derived from the Pledged Rights) shall be put into use in the following order on the premise
of not violating other clauses of this Agreement:

	 	5.5.1	 	It shall be at first used to pay all the expenses incurred to the Pledgee due to
exercise of the right of pledge and/or other rights under this Agreement;
	 
	 	5.5.2	 	Then, it shall be used by the Pledgee to pay off the Secured Debts according to
law;
	 
	 	5.5.3	 	If there is still remaining amount after the Secured Debts are paid off, the said
amount shall be paid to the Pledgor or the person who is entitled to receive it, with no
interest being paid.

	6	 	Rescission of the Right of Pledge
	 
	6.1	 	If, at any time within the effective duration of the right of pledge, the secured debts are
fully paid off, and the Pledgor no longer bears any obligation or liability under this
Agreement, the Pledgee’s right of pledge under this Agreement shall be extinct on the date
when all the Secured Debts are paid off. In such a case, at the Pledgor’s request, the Pledgee
shall execute the written documents on the pledge of shares created under this Agreement and
deliver them to the Pledgor, or assist the Pledgor in going through other procedures for
rescinding the pledge of shares under this Agreement.
	 
	6.2	 	Unless otherwise prescribed in the preceding paragraph, the pledge of shares under this
Agreement shall not be rescinded without the Pledgee’s prior written consent.
	 
	7	 	Nature of Security
	 
	7.1	 	The guaranty under this Agreement shall not be affected by other guaranties held by the
Pledgee regarding the Secured Debts, and shall not affect the effectiveness of those other

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	 	 	securities, either.
	 
	7.2	 	Neither the security nor the Pledgee’s rights under this Agreement shall be rescinded or
affected due to any of the following circumstances:

	 	7.2.1	 	the Pledgee’s offering a grace period to, rescission or mitigation of any person’s
debts at any time;
	 
	 	7.2.2	 	any amendment, modification or supplement to the Loan Agreement, the Share Rights
Agreement, the Trademark License Agreement and/or the Technical Services Agreement;
	 
	 	7.2.3	 	any disposal, modification or rescission of any other guaranty of the relevant
secured debts;
	 
	 	7.2.4	 	reconciliation reached on the claims raised by any person between the Pledgee and
such person;
	 
	 	7.2.5	 	any delay, act, nonfeasance or mistake arising out of the Pledgee’s exercise of
its rights;
	 
	 	7.2.6	 	any circumstance which the Loan Agreement, the Share Rights Agreement, the
Trademark License Agreement and/or the Technical Services Agreement or the performance
thereof are considered ineffective; or
	 
	 	7.2.7	 	any other event which might otherwise affect the Pledgor’s obligations under this
Agreement.

	8	 	Public Notarial Procedures
	 
	8.1	 	After the effectiveness of this Agreement, the Pledgor shall, at the Pledgee’s request,
cooperate with the Pledgee in going together to lawful public notary office to go through the
notarial procedures as required by this Agreement, and shall provide all necessary cooperation
as per the public notary office’s requirements.
	 
	8.2	 	All expenses incurred from the above mentioned notarial procedures shall be solely borne by
the Pledgee.
	 
	9	 	Special Provisions
	 
	9.1	 	Without the Pledgee’s prior written consent, the Pledgor shall not assign any right it may
enjoy under this Agreement or any obligation it shall bear hereunder to any other party.
	 
	9.2	 	The Pledgee shall be entitled to assign any of its rights or obligations under this Agreement
to any third party at any time without being consented by the Pledgor. In such a case, the
Pledgor shall unconditionally cooperate with the Pledgee in going through relevant procedures
for assignment of the rights and obligations, including but not limited to execution of
relevant agreement on change of contractual parties.
	 
	9.3	 	After the procedures for pledge of the shares under this Agreement are completed, unless the
Pledgee makes a reverse decision and informs the Pledgor, the Pledgor shall be obligated to
continue abiding by the legal provisions concerning the Pledged Rights, performing all rights
and obligations relevant to the Pledged Rights (including but not limited to exercising all
its powers and rights relevant to the Pledged Rights under StarVI Company’s articles of
association), and fulfilling the prudence and credibility obligations which a shareholder
shall fulfill.
	 
	9.4	 	The Pledgee shall bear no obligation or legal liability for the Pledged Rights, nor does it
have to perform any obligation that the Pledgor shall bear for the Pledged Rights. Without
prejudice to the Pledgee’s rights under this Agreement, the Pledgee shall bear no obligation
or legal liability to others for the Pledged Rights under this Agreement.
	 
	9.5	 	The Pledgor must timely notify the Pledgee of any event that might affect the Pledged Stock
Rights or the value of the Pledged Stock Rights or might impede the Pledgor from performing
its rights as StarVI Company’s shareholder or harm or delay its performing such rights.
	 
	9.6	 	Without the Pledgee’s prior consent, the Pledgor may not conduct any of the following acts:

	 	9.6.1	 	Amending or modifying in any other way StarVI Company’s articles of association;
	 
	 	9.6.2	 	Establishing any further guaranty on the Pledged Rights beside the pledge created
under this Agreement;
	 
	 	9.6.3	 	Disposing of any interest of the Pledged Rights in any way;
	 
	 	9.6.4	 	Conducting any act that might harm the Pledgee’s Pledged Rights or any of its rights 

-4-

 

	 	 	under this Agreement.

	9.7	 	Without the Pledgee’s written consent, the Pledgor shall not have the Pledged Rights
transferred or re-pledged, or dispose of the Pledged Rights in any other way which may harm
the right of pledge enjoyed by the Pledgee under this Agreement.
	 
	10	 	Representations, Commitments and Warranties
	 
	10.1	 	The pledgor hereby makes representations, commitments and warranties to the Pledgee as
follows:

	 	10.1.1	 	The Pledgor has lawful eligibility and necessary power to conclude this Agreement and
is able to entirely perform any of its obligations under this Agreement;
	 
	 	10.1.2	 	The Pledgor has lawfully performed its obligation of contributing investments to StarVI
Company; is the only holder of the Pledged Rights; and has lawful, complete and full
ownership over all the Pledged Rights under this Agreement;
	 
	 	10.1.3	 	StarVI Company’s shareholders’ meeting has adopted a resolution on consenting to the
pledge of shares pursuant to this Agreement;
	 
	 	10.1.4	 	Except the pledge established in this Agreement, the Pledgor has not established or
permitted others to establish any security right on the Pledged Rights without the
Pledgee’s prior written consent; the Pledged Rights are involved in no ownership dispute,
are not distained or limited in other legal proceedings, but may be pledged and
transferred according to the applicable laws;
	 
	 	10.1.5	 	There is neither existing or pending litigation, arbitration or administrative
proceedings against the Pledged Rights and/or the Pledgor nor any such threat;
	 
	 	10.1.6	 	The Pledgor’s execution of this Agreement, exercise of the rights under this Agreement,
or performance of the obligations under this Agreement will not violate any document or
legal provision applicable to the Pledgor or its properties;
	 
	 	10.1.7	 	The pledge created under this Agreement constitutes an effective security of the
secured debts, may be implemented according to its clauses, and shall not be restricted
by any other’s rights, interests or claims at a preferential or equal status;
	 
	 	10.1.8	 	All documents delivered by the Pledgor to the Pledgee and relevant to this Agreement
are authentic, complete and accurate in all substantive aspects, and there is no omission
that might cause any information in such documents to be in any way incorrect or
misleading;
	 
	 	10.1.9	 	This Agreement constitutes lawful, effective and binding obligations to the Pledgor,
and may be subject to compulsory enforcement according to its clauses upon application.

	10.2	 	The Pledgee hereby makes representations, commitments and warranties to the Pledgor:

	 	10.2.1	 	The Pledgee is a lawfully established and validly existing limited liability company,
has the right to conclude this Agreement and is able to perform its obligations under
this Agreement.
	 
	 	10.2.2	 	The Pledgee has obtained all authorizations and consents for executing and performing
this Agreement.

	11	 	Breach Liability
	 
	11.1	 	If Party A or Party B (each, a “Party”) directly or indirectly violates any provision
hereunder or fails to perform or fails to timely and fully perform any of its obligations
hereunder and thus constitutes a breach of this Agreement, the non-defaulting Party (the
“Non-Defaulting Party”) shall have the right to send a written notification requiring the
defaulting Party (the “Defaulting Party”) to make corrections, take adequate, effective and
timely measures to eliminate the effect thus caused, and indemnify the Non-Defaulting Party
any losses suffered from the Defaulting Party’s breach of contract.
	 
	11.2	 	Upon occurrence of any breach of contract, if the Non-Defaulting Party, based on reasonable
and objective judgment, believes that such breach of contract has caused it impossible or
unfair for the Non-Defaulting Party to perform its corresponding obligations hereunder, then
the Non-Defaulting Party may notify the Defaulting Party in writing that it will suspend its
performance of its corresponding obligations hereunder, until the Defaulting Party has stopped

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	 	 	its breach of contract, taken adequate, effective and timely measures to eliminate the effect
thus caused, and indemnified the Non-Defaulting Party any losses suffered from the Defaulting
Party’s breach of contract.
	 
	11.3	 	The Non-Defaulting Party’s losses to be indemnified by the Defaulting Party due to its breach
of contract shall include the direct economic losses suffered by the Non-Defaulting Party due
to the breach of contract and any expectable indirect losses and additional fees and costs,
including but not limited to the lawyer’s fee, legal cost, arbitration cost, financial cost
and travel cost, etc.
	 
	12	 	Force Majeure
	 
	12.1	 	A Force Majeure Event refers to any event uncontrollable, unpredictable, or unavoidable even
predicted by the Parties hereunder, which interferes, affects or delays any Party’s
performance of the whole or part of its obligations hereunder. Such events shall include,
without limitation, the government’s act, acts of God, war, hacker’s attack or any other
similar event.
	 
	12.2	 	Any Party suffering from a Force Majeure Event may suspend its performance of its relevant
obligations hereunder thus prevented, without having to undertake any liability for breach of
contract, until the effect of such Force Majeure Event is eliminated. However, such affected
Party shall try its best to overcome such Force Majeure Event and reduce its adverse effect.
	 
	12.3	 	The Party affected by a Force Majeure Event shall provide the other Party with a legal
certificate issued by the local notary public (or any other competent organ) for certifying
such Force Majeure Event; otherwise, the other Party may request it to undertake breach
liability according to this Agreement.
	 
	13	 	Effectiveness, Amendment and Termination
	 
	13.1	 	This Agreement shall become effective upon the satisfaction of the following conditions:

	 	13.1.1	 	The pledgor and the Pledgee have formally executed this Agreement;
	 
	 	13.1.2	 	The pledge of the shares under this Agreement has been recorded in StarVI Company’s
register of shareholders.

	13.2	 	Both parties may, after negotiations, amend this Agreement in the form of a written agreement
at any time.
	 
	13.3	 	This Agreement shall be terminated when any of the following circumstances arises:

	 	13.3.1	 	The duration of the right of pledge has elapsed;
	 
	 	13.3.2	 	Both parties rescind the pledge of the shares under this Agreement according to the
clause of “Rescission of the Right of Pledge” in this Agreement;
	 
	 	13.3.3	 	The Pledgee and the Pledgor agree after negotiations to terminate this Agreement;
	 
	 	13.3.4	 	The Pledgee unilaterally consents on terminating this Agreement in advance.

	13.4	 	The early termination of this Agreement shall not affect either party’s rights or obligations
accrued under this Agreement prior to the date when this Agreement was early terminated.
	 
	14	 	Dispute Settlement
	 
	14.1	 	Any dispute arising out of interpretation or performance hereof shall be settled through
friendly negotiation between the Parties.
	 
	14.2	 	If such negotiation fails, both Parties shall submit such dispute to China International
Economic and Trade Arbitration Commission for arbitration according its current arbitration
rules. The place of arbitration shall be Beijing, and the language of arbitration shall be
Chinese. The arbitration award shall be final and binding on both Parties.
	 
	14.3	 	The formation, effectiveness, performance and interpretation hereof as well as dispute
settlement shall be governed by the laws of the People’s Republic of China.
	 
	15	 	Miscellaneous
	 
	15.1	 	This Agreement is executed in triplicate, with each Party holding one, one copy for notary,
all of which shall be of the same legal effect.

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	15.2	 	The headings used in this Agreement are for convenience only, and shall not affect the
interpretation of any provision hereof.
	 
	15.3	 	Both Parties may modify and supplement this Agreement through written agreements. Such
written agreement of modification or supplementation executed by both Parties shall constitute
a part of, and be of the same legal effect as, this Agreement.
	 
	15.4	 	If any provision hereunder is held invalid or unenforceable in whole or in part due to
violating laws or regulations or any other reason, the affected part of such provision shall
be deemed
deleted from the Agreement. The deletion of such affected part shall not affect the validity
and enforceability of the other parts of such provision or that of other provisions hereof.
Both Parties shall negotiate and enter into new provisions so as to replace such invalid or
unenforceable provision.
	 
	15.5	 	Unless otherwise provided, any Party’s failure or delay in exercising any right, power or
privilege shall not be deemed as a waiver of such right, power or privilege. Any single or
partial exercise of any right, power or privilege shall not preclude exercise of any other
right, power or privilege.
	 
	15.6	 	This Agreement constitutes the entire agreement between the Parties with respect to the
subject matter hereof and supersede any and all previous or simultaneous oral and written
agreements, understandings and communication between the Parties relating to such subject
matter. Unless otherwise expressly provided herein, there shall not be any other express or
implied obligations or undertakings between the Parties.
	 
	15.7	 	This Agreement shall be binding upon both parties and their respective successors and
qualified assignees.
	 
	15.8	 	Any other matters not contemplated hereunder shall be subject to further negotiation between
the Parties.

	 	 	 	 	 	 	 	 	 
	Shareholder	 	 	 	SINA.com Technology
(China) Co., Ltd.	 	 
	 
	 	 	 	 	 	 	 	 
	Handwritten Signature:

	 	/s/
	 	Authorized Representative:
	 	/s/
	 	 
	 

	 	 
	 	 	 	 	 	 

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Share Pledge Agreement

This Share Pledge Agreement is entered into in Haidian District, Beijing between the following
parties on 31 (Day) 12 (Month) 2007 (Year):

Party A: XY Yi (hereinafter referred to as the “Pledgor”)

ID No.:

Party B: SINA.com Technology (China) Co., Ltd. (hereinafter referred to as the “Pledgee”)

Address: Room 1506, Ideal Plaza, 58 Bei Si Huan Xi Road, Haidian District, Beijing

Whereas:

	(1)	 	The Pledgor is a shareholder of Beijing Star-Village Online Cultural Development Co., Ltd.
(hereinafter referred to as “StarVI”), and owns 30% of StarVI’s shares;
	 
	(2)	 	All of the Pledgor’s investments in StarVI were sourced from the loan(s) provided by the
Pledgee to the Pledgor in accordance with an agreement between the Pledgor and the Pledgee
regarding the aforesaid loan(s) (hereinafter referred to as the “Loan Agreement”), the Pledgor
bears RMB 3,000,000 Yuan of debt to the Pledgee;
	 
	(3)	 	The Pledgor and the Pledgee entered into an Agreement on Authorization to Exercise
Shareholder’s Voting Power (the “Share Rights Agreement”) on 31 (Day) 12
(Month) 2007 (Year), and according to the Share Rights Agreement, in the case that
the Pledgor breaches the Share Rights Agreement, the Pledgor shall pay liquidated damages;
	 
	(4)	 	StarVI Company and the Pledgee entered into a “Trademark License Agreement” on 31
(Day) 12 (Month) 2007 (Year), and according to the Trademark License
Agreement, StarVI Company shall pay corresponding royalties for trademark licensed by the
Pledgee to StarVI Company;
	 
	(5)	 	StarVI Company and the Pledgee entered into a “Technical Services Agreement” on 31
(Day) 12 (Month) 2007 (Year), and according to the Technical Service
Agreement, StarVI Company shall, as the case may be, pay corresponding technology transfer
fee, technology license fee, technical service fee, equipment assignment fee and/or equipment
rental, etc. to the Pledgee;
	 
	(6)	 	The Pledgor agrees to pledge all of its shares in StarVI Company and all other rights
relevant to the said share rights to the Pledgee as a collateral security for the Pledgor to
pay off all debts to the Pledgee and for StarVI Company to perform its payment obligation
pursuant to the Trademark License Agreement and the Technical Services Agreement and other
relevant obligations; the Pledgee agrees to accept such security.

Therefore, both parties agree as follows after equal and friendly negotiations:

	1	 	Interpretation and Definitions
	 
	1.1	 	In this Agreement, unless otherwise specified in the context, the following terms shall be
interpreted according to their respective meanings defined in the following clauses.
	 
	1.2	 	Secured Debts: shall mean the following debts:

	 	1.2.1	 	all the principal, interest, overdue interest, liquidated damages, indemnities
which the Pledgor shall pay to the Pledgee under the Loan Agreement, as well as all
expenditures (including the lawyer’s fee) and other amounts paid by the Pledgee for
enforcing its rights under the Loan Agreement when the Pledgor breaches the Agreement;
	 
	 	1.2.2	 	all liquidated damages which the Pledgor shall pay to the Pledgee under the Share
Rights Agreement, the interest of the liquidated damages, the overdue interest, as well
as all expenditures (including the lawyer’s fee) and other amounts paid by the Pledgee
for enforcing its rights under the Share Rights Agreement when the Pledgor breaches the
Share Rights Agreement;
	 
	 	1.2.3	 	all royalties for trademark license, the liquidated damages and other relevant
fees which StarVI Company shall pay to the Pledgee under the Trademark License Agreement,
as well as all expenditures (including the lawyer’s fee) and other amounts paid by the
Pledgee for enforcing its rights under the Trademark License Agreement when StarVI
Company breaches the Agreement;
	 
	 	1.2.4	 	the technology transfer fee, technology license fee, technical service fee,
equipment assignment fee and/or equipment rental, etc., the liquidated damages and other
relevant fees, which StarVI Company shall pay to the Pledgee under the Technical Services

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	 	 	 	Agreement, as well as all expenditures (including the lawyer’s fee) and other amounts
paid by the Pledgee for enforcing its rights under the Technical Services Agreement when
StarVI Company breaches the Technical Services Agreement.

	1.3	 	Pledged Rights: shall mean the Pledgor’s shares in StarVI Company and all other rights
relevant to such shares. Specifically, the Pledged Rights include but are not limited to the
following rights:

	 	1.3.1	 	all dividends, profit distributions, extra dividends, allocated shares and any
other kind of funds relevant to the Pledged Rights, as well as corresponding rights and
interests, which the Pledgor shall be entitled to receive from StarVI Company at present
or in the future;
	 
	 	1.3.2	 	the rights enjoyed by the Pledgor in determining StarVI Company’s operational
guidelines, investment plans and other major matters as well as on electing and changing
directors and supervisors, which are corresponding to the Pledged Rights it holds;
	 
	 	1.3.3	 	all interests warranted, confirmed and promised by other parties under StarVI
Company’s articles of association and other organizational documents to the Pledgor;
	 
	 	1.3.4	 	the Pledgor’s right of claiming against any party to StarVI Company’s articles of
association or any other organizational document for compensation due to any breach;
	 
	 	1.3.5	 	the Pledgor’s right of consenting to or opposing the rescission, amendment or
termination of StarVI Company’s articles of association and other organizational
documents due to the Pledged Rights it holds;
	 
	 	1.3.6	 	Other powers and rights relevant to the Pledged Rights, which the Pledgor is
entitled to according to relevant laws and regulations of China as well as StarVI
Company’s articles of association and other organizational documents.

	2	 	Pledge of Stock Rights
	 
	2.1	 	The Pledgor warrants that it will, pursuant to the Loan Agreement and the Share Rights
Agreement, pays off relevant debts to the Pledgee, and meanwhile provide guaranty for StarVI
Company to perform the payment obligation and other relevant obligations under the Trademark
License Agreement and the Technical Services Agreement. Therefore, the Pledgor agrees to
pledge the Pledged Rights to the Pledgee.
	 
	2.2	 	The Pledgor shall, on the date of execution of this Agreement, submit to the Pledgee the
following documents:

	 	2.2.1	 	the investment certificate issued by StarVI Company to the Pledgor evidencing that
the Pledgor lawfully holds the Pledged Stock Rights;
	 
	 	2.2.2	 	the written documents showing that StarVI Company’s other shareholders agree with
the Pledgor on establishing the pledge of share rights under this Agreement;
	 
	 	2.2.3	 	all other materials and documents reasonably required by the Pledgee.

	2.3	 	The Pledgor shall deliver the capital contribution certificate to the Pledgee on the date of
effectiveness of this Agreement, and go through the procedures for record of modification of
the share register in StarVI Company.
	 
	3	 	Scope of Security
	 
	3.1	 	The scope of security of the Pledged Stock Rights under this Agreement shall cover:

	 	3.1.1	 	the Secured Debts as defined in Article 1.2 of this Agreement;
	 
	 	3.1.2	 	the expenditures paid by the Pledgee for enforcing its right of pledge under this
Agreement.

	4	 	Term of Right of Pledge
	 
	4.1	 	The valid duration of the right of pledge which the Pledgee enjoys under this Agreement shall
commence on the effectiveness date of this Agreement until the three-year anniversary of the
date when the last sum of guaranteed debt is due.
	 
	5	 	Exercise of the Right of Pledge
	 
	5.1	 	In the event that the Pledgor fails to pay off its debts under the Loan Agreement or the
Share Rights Agreement to the Pledgee on time, or StarVI Company fails to perform its payment
obligation or other relevant obligations to the Pledgee under the Trademark License Agreement
or the Technical Services Agreement, or the Pledgor breaches its responsibilities or

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	 	 	obligations under this Agreement, the Pledgee shall be entitled to, within a scope permitted
by the applicable laws, exercise the right of pledge at any time it considers appropriate
within the
duration of the right of pledge and in a method it considers appropriate. Such methods shall
include but not be limited to:

	 	5.1.1	 	negotiating with the Pledgor on paying off the Secured Debts by transferring to
the Pledgee the Pledged Rights;
	 
	 	5.1.2	 	selling off the Pledged Rights, and paying off the Secured Debts with the proceeds
from the sale;
	 
	 	5.1.3	 	retaining a competent institution to auction total or partial Pledged Rights;
and/or
	 
	 	5.1.4	 	disposing of the Pledged Rights by taking other appropriate measures permitted by
the applicable laws.

	5.2	 	In the process when the Pledgee disposes of the Pledged Rights according to the preceding
paragraph, the Pledgee shall be entitled to:

	 	5.2.1	 	substitute the Pledgor to exercise the powers or rights relevant to the Pledged
Rights as StarVI Company’s shareholder;
	 
	 	5.2.2	 	pay necessary money for exercising any power or right imposed by this Agreement or
the law upon the Pledgee;
	 
	 	5.2.3	 	exercise in a way it considers appropriate or permit other person to exercise any
power or right under the Pledged Rights;
	 
	 	5.2.4	 	recover or claim the money payable to the Pledgor arising from the Pledged Rights
for paying off the Secured Debts;
	 
	 	5.2.5	 	with respect to claim by any person for the rights relevant to the Pledged Rights
in any respect, make settlement, reach reconciliation, resort to arbitration or
litigation proceedings or seek any other measures it considers appropriate;
	 
	 	5.2.6	 	take all other actions permitted by law for the purpose of enforcing any of its
rights under this Agreement.

	5.3	 	At the Pledgee’s request, the Pledgor must assist the Pledgee in obtaining all necessary
approvals or consents relevant to the Pledgee’s enforcement of its credit rights and the right
of pledge.
	 
	5.4	 	Within the duration of the right of pledge, the Pledgee shall be entitled to collect the
legal fruits of the Pledged Rights.
	 
	5.5	 	All the money collected by the Pledgee from the exercise of its right of pledge (including
but not limited to the price obtained from disposing of the Pledged Rights and any proceeds
derived from the Pledged Rights) shall be put into use in the following order on the premise
of not violating other clauses of this Agreement:

	 	5.5.1	 	It shall be at first used to pay all the expenses incurred to the Pledgee due to
exercise of the right of pledge and/or other rights under this Agreement;
	 
	 	5.5.2	 	Then, it shall be used by the Pledgee to pay off the Secured Debts according to
law;
	 
	 	5.5.3	 	If there is still remaining amount after the Secured Debts are paid off, the said
amount shall be paid to the Pledgor or the person who is entitled to receive it, with no
interest being paid.

	6	 	Rescission of the Right of Pledge
	 
	6.1	 	If, at any time within the effective duration of the right of pledge, the secured debts are
fully paid off, and the Pledgor no longer bears any obligation or liability under this
Agreement, the Pledgee’s right of pledge under this Agreement shall be extinct on the date
when all the Secured Debts are paid off. In such a case, at the Pledgor’s request, the Pledgee
shall execute the written documents on the pledge of shares created under this Agreement and
deliver them to the Pledgor, or assist the Pledgor in going through other procedures for
rescinding the pledge of shares under this Agreement.
	 
	6.2	 	Unless otherwise prescribed in the preceding paragraph, the pledge of shares under this
Agreement shall not be rescinded without the Pledgee’s prior written consent.
	 
	7	 	Nature of Security
	 
	7.1	 	The guaranty under this Agreement shall not be affected by other guaranties held by the
Pledgee regarding the Secured Debts, and shall not affect the effectiveness of those other

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	 	 	securities, either.

	7.2	 	Neither the security nor the Pledgee’s rights under this Agreement shall be rescinded or
affected due to any of the following circumstances:

	 	7.2.1	 	the Pledgee’s offering a grace period to, rescission or mitigation of any person’s
debts at any time;
	 
	 	7.2.2	 	any amendment, modification or supplement to the Loan Agreement, the Share Rights
Agreement, the Trademark License Agreement and/or the Technical Services Agreement;
	 
	 	7.2.3	 	any disposal, modification or rescission of any other guaranty of the relevant
secured debts;
	 
	 	7.2.4	 	reconciliation reached on the claims raised by any person between the Pledgee and
such person;
	 
	 	7.2.5	 	any delay, act, nonfeasance or mistake arising out of the Pledgee’s exercise of
its rights;
	 
	 	7.2.6	 	any circumstance which the Loan Agreement, the Share Rights Agreement, the
Trademark License Agreement and/or the Technical Services Agreement or the performance
thereof are considered ineffective; or
	 
	 	7.2.7	 	any other event which might otherwise affect the Pledgor’s obligations under this
Agreement.

	8	 	Public Notarial Procedures
	 
	8.1	 	After the effectiveness of this Agreement, the Pledgor shall, at the Pledgee’s request,
cooperate with the Pledgee in going together to lawful public notary office to go through the
notarial procedures as required by this Agreement, and shall provide all necessary cooperation
as per the public notary office’s requirements.
	 
	8.2	 	All expenses incurred from the above mentioned notarial procedures shall be solely borne by
the Pledgee.
	 
	9	 	Special Provisions
	 
	9.1	 	Without the Pledgee’s prior written consent, the Pledgor shall not assign any right it may
enjoy under this Agreement or any obligation it shall bear hereunder to any other party.
	 
	9.2	 	The Pledgee shall be entitled to assign any of its rights or obligations under this Agreement
to any third party at any time without being consented by the Pledgor. In such a case, the
Pledgor shall unconditionally cooperate with the Pledgee in going through relevant procedures
for assignment of the rights and obligations, including but not limited to execution of
relevant agreement on change of contractual parties.
	 
	9.3	 	After the procedures for pledge of the shares under this Agreement are completed, unless the
Pledgee makes a reverse decision and informs the Pledgor, the Pledgor shall be obligated to
continue abiding by the legal provisions concerning the Pledged Rights, performing all rights
and obligations relevant to the Pledged Rights (including but not limited to exercising all
its powers and rights relevant to the Pledged Rights under StarVI Company’s articles of
association), and fulfilling the prudence and credibility obligations which a shareholder
shall fulfill.
	 
	9.4	 	The Pledgee shall bear no obligation or legal liability for the Pledged Rights, nor does it
have to perform any obligation that the Pledgor shall bear for the Pledged Rights. Without
prejudice to the Pledgee’s rights under this Agreement, the Pledgee shall bear no obligation
or legal liability to others for the Pledged Rights under this Agreement.
	 
	9.5	 	The Pledgor must timely notify the Pledgee of any event that might affect the Pledged Stock
Rights or the value of the Pledged Stock Rights or might impede the Pledgor from performing
its rights as StarVI Company’s shareholder or harm or delay its performing such rights.
	 
	9.6	 	Without the Pledgee’s prior consent, the Pledgor may not conduct any of the following acts:

	 	9.6.1	 	Amending or modifying in any other way StarVI Company’s articles of association;
	 
	 	9.6.2	 	Establishing any further guaranty on the Pledged Rights beside the pledge created
under this Agreement;
	 
	 	9.6.3	 	Disposing of any interest of the Pledged Rights in any way;
	 
	 	9.6.4	 	Conducting any act that might harm the Pledgee’s Pledged Rights or any of its
rights

-4-

 

	 	 	 	under this Agreement.

	9.7	 	Without the Pledgee’s written consent, the Pledgor shall not have the Pledged Rights
transferred or re-pledged, or dispose of the Pledged Rights in any other way which may harm
the right of pledge enjoyed by the Pledgee under this Agreement.
	 
	10	 	Representations, Commitments and Warranties
	 
	10.1	 	The pledgor hereby makes representations, commitments and warranties to the Pledgee as
follows:

	 	10.1.1	 	The Pledgor has lawful eligibility and necessary power to conclude this Agreement and
is able to entirely perform any of its obligations under this Agreement;
	 
	 	10.1.2	 	The Pledgor has lawfully performed its obligation of contributing investments to StarVI
Company; is the only holder of the Pledged Rights; and has lawful, complete and full
ownership over all the Pledged Rights under this Agreement;
	 
	 	10.1.3	 	StarVI Company’s shareholders’ meeting has adopted a resolution on consenting to the
pledge of shares pursuant to this Agreement;
	 
	 	10.1.4	 	Except the pledge established in this Agreement, the Pledgor has not established or
permitted others to establish any security right on the Pledged Rights without the
Pledgee’s prior written consent; the Pledged Rights are involved in no ownership dispute,
are not distained or limited in other legal proceedings, but may be pledged and
transferred according to the applicable laws;
	 
	 	10.1.5	 	There is neither existing or pending litigation, arbitration or administrative
proceedings against the Pledged Rights and/or the Pledgor nor any such threat;
	 
	 	10.1.6	 	The Pledgor’s execution of this Agreement, exercise of the rights under this Agreement,
or performance of the obligations under this Agreement will not violate any document or
legal provision applicable to the Pledgor or its properties;
	 
	 	10.1.7	 	The pledge created under this Agreement constitutes an effective security of the
secured debts, may be implemented according to its clauses, and shall not be restricted
by any other’s rights, interests or claims at a preferential or equal status;
	 
	 	10.1.8	 	All documents delivered by the Pledgor to the Pledgee and relevant to this Agreement
are authentic, complete and accurate in all substantive aspects, and there is no omission
that might cause any information in such documents to be in any way incorrect or
misleading;
	 
	 	10.1.9	 	This Agreement constitutes lawful, effective and binding obligations to the Pledgor,
and may be subject to compulsory enforcement according to its clauses upon application.

	10.2	 	The Pledgee hereby makes representations, commitments and warranties to the Pledgor:

	 	10.2.1	 	The Pledgee is a lawfully established and validly existing limited liability company,
has the right to conclude this Agreement and is able to perform its obligations under
this Agreement.
	 
	 	10.2.2	 	The Pledgee has obtained all authorizations and consents for executing and performing
this Agreement.

	11	 	Breach Liability
	 
	11.1	 	If Party A or Party B (each, a “Party”) directly or indirectly violates any provision
hereunder or fails to perform or fails to timely and fully perform any of its obligations
hereunder and thus constitutes a breach of this Agreement, the non-defaulting Party (the
“Non-Defaulting Party”) shall have the right to send a written notification requiring the
defaulting Party (the “Defaulting Party”) to make corrections, take adequate, effective and
timely measures to eliminate the effect thus caused, and indemnify the Non-Defaulting Party
any losses suffered from the Defaulting Party’s breach of contract.
	 
	11.2	 	Upon occurrence of any breach of contract, if the Non-Defaulting Party, based on reasonable
and objective judgment, believes that such breach of contract has caused it impossible or
unfair for the Non-Defaulting Party to perform its corresponding obligations hereunder, then
the Non-Defaulting Party may notify the Defaulting Party in writing that it will suspend its
performance of its corresponding obligations hereunder, until the Defaulting Party has stopped

-5-

 

	 	 	its breach of contract, taken adequate, effective and timely measures to eliminate the effect
thus caused, and indemnified the Non-Defaulting Party any losses suffered from the Defaulting
Party’s breach of contract.

	11.3	 	The Non-Defaulting Party’s losses to be indemnified by the Defaulting Party due to its breach
of contract shall include the direct economic losses suffered by the Non-Defaulting Party due
to the breach of contract and any expectable indirect losses and additional fees and costs,
including but not limited to the lawyer’s fee, legal cost, arbitration cost, financial cost
and travel cost, etc.
	 
	12	 	Force Majeure
	 
	12.1	 	A Force Majeure Event refers to any event uncontrollable, unpredictable, or unavoidable even
predicted by the Parties hereunder, which interferes, affects or delays any Party’s
performance of the whole or part of its obligations hereunder. Such events shall include,
without limitation, the government’s act, acts of God, war, hacker’s attack or any other
similar event.
	 
	12.2	 	Any Party suffering from a Force Majeure Event may suspend its performance of its relevant
obligations hereunder thus prevented, without having to undertake any liability for breach of
contract, until the effect of such Force Majeure Event is eliminated. However, such affected
Party shall try its best to overcome such Force Majeure Event and reduce its adverse effect.
	 
	12.3	 	The Party affected by a Force Majeure Event shall provide the other Party with a legal
certificate issued by the local notary public (or any other competent organ) for certifying
such Force Majeure Event; otherwise, the other Party may request it to undertake breach
liability according to this Agreement.
	 
	13	 	Effectiveness, Amendment and Termination
	 
	13.1	 	This Agreement shall become effective upon the satisfaction of the following conditions:

	 	13.1.1	 	The pledgor and the Pledgee have formally executed this Agreement;
	 
	 	13.1.2	 	The pledge of the shares under this Agreement has been recorded in StarVI Company’s
register of shareholders.

	13.2	 	Both parties may, after negotiations, amend this Agreement in the form of a written agreement
at any time.
	 
	13.3	 	This Agreement shall be terminated when any of the following circumstances arises:

	 	13.3.1	 	The duration of the right of pledge has elapsed;
	 
	 	13.3.2	 	Both parties rescind the pledge of the shares under this Agreement according to the
clause of “Rescission of the Right of Pledge” in this Agreement;
	 
	 	13.3.3	 	The Pledgee and the Pledgor agree after negotiations to terminate this Agreement;
	 
	 	13.3.4	 	The Pledgee unilaterally consents on terminating this Agreement in advance.

	13.4	 	The early termination of this Agreement shall not affect either party’s rights or obligations
accrued under this Agreement prior to the date when this Agreement was early terminated.
	 
	14	 	Dispute Settlement
	 
	14.1	 	Any dispute arising out of interpretation or performance hereof shall be settled through
friendly negotiation between the Parties.
	 
	14.2	 	If such negotiation fails, both Parties shall submit such dispute to China International
Economic and Trade Arbitration Commission for arbitration according its current arbitration
rules. The place of arbitration shall be Beijing, and the language of arbitration shall be
Chinese. The arbitration award shall be final and binding on both Parties.
	 
	14.3	 	The formation, effectiveness, performance and interpretation hereof as well as dispute
settlement shall be governed by the laws of the People’s Republic of China.
	 
	15	 	Miscellaneous
	 
	15.1	 	This Agreement is executed in triplicate, with each Party holding one, one copy for notary,
all of which shall be of the same legal effect.
	 
	15.2	 	The headings used in this Agreement are for convenience only, and shall not affect the
interpretation of any provision hereof.

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	15.3	 	Both Parties may modify and supplement this Agreement through written agreements. Such
written agreement of modification or supplementation executed by both Parties shall constitute
a part of, and be of the same legal effect as, this Agreement.
	 
	15.4	 	If any provision hereunder is held invalid or unenforceable in whole or in part due to
violating laws or regulations or any other reason, the affected part of such provision shall
be deemed deleted from the Agreement. The deletion of such affected part shall not affect the
validity and enforceability of the other parts of such provision or that of other provisions
hereof. Both
Parties shall negotiate and enter into new provisions so as to replace such invalid or
unenforceable provision.
	 
	15.5	 	Unless otherwise provided, any Party’s failure or delay in exercising any right, power or
privilege shall not be deemed as a waiver of such right, power or privilege. Any single or
partial exercise of any right, power or privilege shall not preclude exercise of any other
right, power or privilege.
	 
	15.6	 	This Agreement constitutes the entire agreement between the Parties with respect to the
subject matter hereof and supersede any and all previous or simultaneous oral and written
agreements, understandings and communication between the Parties relating to such subject
matter. Unless otherwise expressly provided herein, there shall not be any other express or
implied obligations or undertakings between the Parties.
	 
	15.7	 	This Agreement shall be binding upon both parties and their respective successors and
qualified assignees.
	 
	15.8	 	Any other matters not contemplated hereunder shall be subject to further negotiation between
the Parties.

	 	 	 	 	 	 	 	 	 
	Shareholder	 	 	 	SINA.com Technology
(China) Co., Ltd.	 	 
	 
	 	 	 	 	 	 	 	 
	Handwritten
Signature:

	 	/s/
	 	Authorized Representative:
	 	/s/
	 	 
	 

	 	 
	 	 	 	 	 	 

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Share Pledge Agreement

This Share Pledge Agreement is entered into in Haidian District, Beijing between the following
parties on 31 (Day) 12 (Month) 2007 (Year):

Party A: SB Li (hereinafter referred to as the “Pledgor”)

ID No.:

Party B: SINA.com Technology (China) Co., Ltd. (hereinafter referred to as the “Pledgee”)

Address: Room 1506, Ideal Plaza, 58 Bei Si Huan Xi Road, Haidian District, Beijing

Whereas:

	(1)	 	The Pledgor is a shareholder of Beijing Star-Village Online Cultural Development Co., Ltd.
(hereinafter referred to as “StarVI”), and owns 40% of StarVI’s shares;
	 
	(2)	 	All of the Pledgor’s investments in StarVI were sourced from the loan(s) provided by the
Pledgee to the Pledgor in accordance with an agreement between the Pledgor and the Pledgee
regarding the aforesaid loan(s) (hereinafter referred to as the “Loan Agreement”), the Pledgor
bears RMB 4,000,000 Yuan of debt to the Pledgee;
	 
	(3)	 	The Pledgor and the Pledgee entered into an Agreement on Authorization to Exercise
Shareholder’s Voting Power (the “Share Rights Agreement”) on 31 (Day) 12 (Month) 2007 (Year), and according to the Share Rights Agreement, in the case that
the Pledgor breaches the Share Rights Agreement, the Pledgor shall pay liquidated damages;
	 
	(4)	 	StarVI Company and the Pledgee entered into a “Trademark License Agreement” on 31 (Day) 12 (Month) 2007 (Year), and according to the Trademark License
Agreement, StarVI Company shall pay corresponding royalties for trademark licensed by the
Pledgee to StarVI Company;
	 
	(5)	 	StarVI Company and the Pledgee entered into a “Technical Services Agreement” on 31 (Day) 12 (Month) 2007 (Year), and according to the Technical Service
Agreement, StarVI Company shall, as the case may be, pay corresponding technology transfer
fee, technology license fee, technical service fee, equipment assignment fee and/or equipment
rental, etc. to the Pledgee;
	 
	(6)	 	The Pledgor agrees to pledge all of its shares in StarVI Company and all other rights
relevant to the said share rights to the Pledgee as a collateral security for the Pledgor to
pay off all debts to the Pledgee and for StarVI Company to perform its payment obligation
pursuant to the Trademark License Agreement and the Technical Services Agreement and other
relevant obligations; the Pledgee agrees to accept such security.

Therefore, both parties agree as follows after equal and friendly negotiations:

	1	 	Interpretation and Definitions
	 
	1.1	 	In this Agreement, unless otherwise specified in the context, the following terms shall be
interpreted according to their respective meanings defined in the following clauses.
	 
	1.2	 	Secured Debts: shall mean the following debts:

	 	1.2.1	 	all the principal, interest, overdue interest, liquidated damages, indemnities
which the Pledgor shall pay to the Pledgee under the Loan Agreement, as well as all
expenditures (including the lawyer’s fee) and other amounts paid by the Pledgee for
enforcing its rights under the Loan Agreement when the Pledgor breaches the Agreement;
	 
	 	1.2.2	 	all liquidated damages which the Pledgor shall pay to the Pledgee under the Share
Rights Agreement, the interest of the liquidated damages, the overdue interest, as well
as all expenditures (including the lawyer’s fee) and other amounts paid by the Pledgee
for enforcing its rights under the Share Rights Agreement when the Pledgor breaches the
Share Rights Agreement;
	 
	 	1.2.3	 	all royalties for trademark license, the liquidated damages and other relevant
fees which StarVI Company shall pay to the Pledgee under the Trademark License Agreement,
as well as all expenditures (including the lawyer’s fee) and other amounts paid by the
Pledgee for enforcing its rights under the Trademark License Agreement when StarVI
Company breaches the Agreement;
	 
	 	1.2.4	 	the technology transfer fee, technology license fee, technical service fee,
equipment assignment fee and/or equipment rental, etc., the liquidated damages and other
relevant fees, which StarVI Company shall pay to the Pledgee under the Technical Services

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	 	 	 	Agreement, as well as all expenditures (including the lawyer’s fee) and other amounts
paid by the Pledgee for enforcing its rights under the Technical Services Agreement
when StarVI Company breaches the Technical Services Agreement.

	1.3	 	Pledged Rights: shall mean the Pledgor’s shares in StarVI Company and all other rights
relevant to such shares. Specifically, the Pledged Rights include but are not limited to the
following rights:

	 	1.3.1	 	all dividends, profit distributions, extra dividends, allocated shares and any
other kind of funds relevant to the Pledged Rights, as well as corresponding rights and
interests, which the Pledgor shall be entitled to receive from StarVI Company at present
or in the future;
	 
	 	1.3.2	 	the rights enjoyed by the Pledgor in determining StarVI Company’s operational
guidelines, investment plans and other major matters as well as on electing and changing
directors and supervisors, which are corresponding to the Pledged Rights it holds;
	 
	 	1.3.3	 	all interests warranted, confirmed and promised by other parties under StarVI
Company’s articles of association and other organizational documents to the Pledgor;
	 
	 	1.3.4	 	the Pledgor’s right of claiming against any party to StarVI Company’s articles of
association or any other organizational document for compensation due to any breach;
	 
	 	1.3.5	 	the Pledgor’s right of consenting to or opposing the rescission, amendment or
termination of StarVI Company’s articles of association and other organizational
documents due to the Pledged Rights it holds;
	 
	 	1.3.6	 	Other powers and rights relevant to the Pledged Rights, which the Pledgor is
entitled to according to relevant laws and regulations of China as well as StarVI
Company’s articles of association and other organizational documents.

	2	 	Pledge of Stock Rights
	 
	2.1	 	The Pledgor warrants that it will, pursuant to the Loan Agreement and the Share Rights
Agreement, pays off relevant debts to the Pledgee, and meanwhile provide guaranty for StarVI
Company to perform the payment obligation and other relevant obligations under the Trademark
License Agreement and the Technical Services Agreement. Therefore, the Pledgor agrees to
pledge the Pledged Rights to the Pledgee.
	 
	2.2	 	The Pledgor shall, on the date of execution of this Agreement, submit to the Pledgee the
following documents:

	 	2.2.1	 	the investment certificate issued by StarVI Company to the Pledgor evidencing that
the Pledgor lawfully holds the Pledged Stock Rights;
	 
	 	2.2.2	 	the written documents showing that StarVI Company’s other shareholders agree with
the Pledgor on establishing the pledge of share rights under this Agreement;
	 
	 	2.2.3	 	all other materials and documents reasonably required by the Pledgee.

	2.3	 	The Pledgor shall deliver the capital contribution certificate to the Pledgee on the date of
effectiveness of this Agreement, and go through the procedures for record of modification of
the share register in StarVI Company.
	 
	3	 	Scope of Security
	 
	3.1	 	The scope of security of the Pledged Stock Rights under this Agreement shall cover:

	 	3.1.1	 	the Secured Debts as defined in Article 1.2 of this Agreement;
	 
	 	3.1.2	 	the expenditures paid by the Pledgee for enforcing its right of pledge under this
Agreement.

	4	 	Term of Right of Pledge
	 
	4.1	 	The valid duration of the right of pledge which the Pledgee enjoys under this Agreement shall
commence on the effectiveness date of this Agreement until the three-year anniversary of the
date when the last sum of guaranteed debt is due.
	 
	5	 	Exercise of the Right of Pledge
	 
	5.1	 	In the event that the Pledgor fails to pay off its debts under the Loan Agreement or the
Share Rights Agreement to the Pledgee on time, or StarVI Company fails to perform its payment
obligation or other relevant obligations to the Pledgee under the Trademark License Agreement or the Technical Services Agreement, or the Pledgor breaches its responsibilities or

-2-

 

		 	obligations under this Agreement, the Pledgee shall be entitled to, within a scope permitted
by the applicable laws, exercise the right of pledge at any time it considers appropriate
within the duration of the right of pledge and in a method it considers appropriate. Such
methods shall include but not be limited to:

	 	5.1.1	 	negotiating with the Pledgor on paying off the Secured Debts by transferring to
the Pledgee the Pledged Rights;
	 
	 	5.1.2	 	selling off the Pledged Rights, and paying off the Secured Debts with the proceeds
from the sale;
	 
	 	5.1.3	 	retaining a competent institution to auction total or partial Pledged Rights;
and/or
	 
	 	5.1.4	 	disposing of the Pledged Rights by taking other appropriate measures permitted by
the applicable laws.

	5.2	 	In the process when the Pledgee disposes of the Pledged Rights according to the preceding
paragraph, the Pledgee shall be entitled to:

	 	5.2.1	 	substitute the Pledgor to exercise the powers or rights relevant to the Pledged
Rights as StarVI Company’s shareholder;
	 
	 	5.2.2	 	pay necessary money for exercising any power or right imposed by this Agreement or
the law upon the Pledgee;
	 
	 	5.2.3	 	exercise in a way it considers appropriate or permit other person to exercise any
power or right under the Pledged Rights;
	 
	 	5.2.4	 	recover or claim the money payable to the Pledgor arising from the Pledged Rights
for paying off the Secured Debts;
	 
	 	5.2.5	 	with respect to claim by any person for the rights relevant to the Pledged Rights
in any respect, make settlement, reach reconciliation, resort to arbitration or
litigation proceedings or seek any other measures it considers appropriate;
	 
	 	5.2.6	 	take all other actions permitted by law for the purpose of enforcing any of its
rights under this Agreement.

	5.3	 	At the Pledgee’s request, the Pledgor must assist the Pledgee in obtaining all necessary
approvals or consents relevant to the Pledgee’s enforcement of its credit rights and the right
of pledge.
	 
	5.4	 	Within the duration of the right of pledge, the Pledgee shall be entitled to collect the
legal fruits of the Pledged Rights.
	 
	5.5	 	All the money collected by the Pledgee from the exercise of its right of pledge (including
but not limited to the price obtained from disposing of the Pledged Rights and any proceeds
derived from the Pledged Rights) shall be put into use in the following order on the premise
of not violating other clauses of this Agreement:

	 	5.5.1	 	It shall be at first used to pay all the expenses incurred to the Pledgee due to
exercise of the right of pledge and/or other rights under this Agreement;
	 
	 	5.5.2	 	Then, it shall be used by the Pledgee to pay off the Secured Debts according to
law;
	 
	 	5.5.3	 	If there is still remaining amount after the Secured Debts are paid off, the said
amount shall be paid to the Pledgor or the person who is entitled to receive it, with no
interest being paid.

	6	 	Rescission of the Right of Pledge
	 
	6.1	 	If, at any time within the effective duration of the right of pledge, the secured debts are
fully paid off, and the Pledgor no longer bears any obligation or liability under this
Agreement, the Pledgee’s right of pledge under this Agreement shall be extinct on the date
when all the Secured Debts are paid off. In such a case, at the Pledgor’s request, the Pledgee
shall execute the written documents on the pledge of shares created under this Agreement and
deliver them to the Pledgor, or assist the Pledgor in going through other procedures for
rescinding the pledge of shares under this Agreement.
	 
	6.2	 	Unless otherwise prescribed in the preceding paragraph, the pledge of shares under this
Agreement shall not be rescinded without the Pledgee’s prior written consent.
	 
	7	 	Nature of Security
	 
	7.1	 	The guaranty under this Agreement shall not be affected by other guaranties held by the Pledgee regarding the Secured Debts, and shall not affect the effectiveness of those other

-3-

 

	 	 	securities, either.
	 
	7.2	 	Neither the security nor the Pledgee’s rights under this Agreement shall be rescinded or
affected due to any of the following circumstances:

	 	7.2.1	 	the Pledgee’s offering a grace period to, rescission or mitigation of any person’s
debts at any time;
	 
	 	7.2.2	 	any amendment, modification or supplement to the Loan Agreement, the Share Rights
Agreement, the Trademark License Agreement and/or the Technical Services Agreement;
	 
	 	7.2.3	 	any disposal, modification or rescission of any other guaranty of the relevant
secured debts;
	 
	 	7.2.4	 	reconciliation reached on the claims raised by any person between the Pledgee and
such person;
	 
	 	7.2.5	 	any delay, act, nonfeasance or mistake arising out of the Pledgee’s exercise of
its rights;
	 
	 	7.2.6	 	any circumstance which the Loan Agreement, the Share Rights Agreement, the
Trademark License Agreement and/or the Technical Services Agreement or the performance
thereof are considered ineffective; or
	 
	 	7.2.7	 	any other event which might otherwise affect the Pledgor’s obligations under this
Agreement.

	8	 	Public Notarial Procedures
	 
	8.1	 	After the effectiveness of this Agreement, the Pledgor shall, at the Pledgee’s request,
cooperate with the Pledgee in going together to lawful public notary office to go through the
notarial procedures as required by this Agreement, and shall provide all necessary cooperation
as per the public notary office’s requirements.
	 
	8.2	 	All expenses incurred from the above mentioned notarial procedures shall be solely borne by
the Pledgee.
	 
	9	 	Special Provisions
	 
	9.1	 	Without the Pledgee’s prior written consent, the Pledgor shall not assign any right it may
enjoy under this Agreement or any obligation it shall bear hereunder to any other party.
	 
	9.2	 	The Pledgee shall be entitled to assign any of its rights or obligations under this Agreement
to any third party at any time without being consented by the Pledgor. In such a case, the
Pledgor shall unconditionally cooperate with the Pledgee in going through relevant procedures
for assignment of the rights and obligations, including but not limited to execution of
relevant agreement on change of contractual parties.
	 
	9.3	 	After the procedures for pledge of the shares under this Agreement are completed, unless the
Pledgee makes a reverse decision and informs the Pledgor, the Pledgor shall be obligated to
continue abiding by the legal provisions concerning the Pledged Rights, performing all rights
and obligations relevant to the Pledged Rights (including but not limited to exercising all
its powers and rights relevant to the Pledged Rights under StarVI Company’s articles of
association), and fulfilling the prudence and credibility obligations which a shareholder
shall fulfill.
	 
	9.4	 	The Pledgee shall bear no obligation or legal liability for the Pledged Rights, nor does it
have to perform any obligation that the Pledgor shall bear for the Pledged Rights. Without
prejudice to the Pledgee’s rights under this Agreement, the Pledgee shall bear no obligation
or legal liability to others for the Pledged Rights under this Agreement.
	 
	9.5	 	The Pledgor must timely notify the Pledgee of any event that might affect the Pledged Stock
Rights or the value of the Pledged Stock Rights or might impede the Pledgor from performing
its rights as StarVI Company’s shareholder or harm or delay its performing such rights.
	 
	9.6	 	Without the Pledgee’s prior consent, the Pledgor may not conduct any of the following acts:

	 	9.6.1	 	Amending or modifying in any other way StarVI Company’s articles of association;
	 
	 	9.6.2	 	Establishing any further guaranty on the Pledged Rights beside the pledge created
under this Agreement;
	 
	 	9.6.3	 	Disposing of any interest of the Pledged Rights in any way;
	 
	 	9.6.4	 	Conducting any act that might harm the Pledgee’s Pledged Rights or any of its
rights

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	 	 	 	under this Agreement.

	9.7	 	Without the Pledgee’s written consent, the Pledgor shall not have the Pledged Rights
transferred or re-pledged, or dispose of the Pledged Rights in any other way which may harm
the right of pledge enjoyed by the Pledgee under this Agreement.
	 
	10	 	Representations, Commitments and Warranties
	 
	10.1	 	The pledgor hereby makes representations, commitments and warranties to the Pledgee as
follows:

	 	10.1.1	 	The Pledgor has lawful eligibility and necessary power to conclude this Agreement and
is able to entirely perform any of its obligations under this Agreement;
	 
	 	10.1.2	 	The Pledgor has lawfully performed its obligation of contributing investments to StarVI
Company; is the only holder of the Pledged Rights; and has lawful, complete and full
ownership over all the Pledged Rights under this Agreement;
	 
	 	10.1.3	 	StarVI Company’s shareholders’ meeting has adopted a resolution on consenting to the
pledge of shares pursuant to this Agreement;
	 
	 	10.1.4	 	Except the pledge established in this Agreement, the Pledgor has not established or
permitted others to establish any security right on the Pledged Rights without the
Pledgee’s prior written consent; the Pledged Rights are involved in no ownership dispute,
are not distained or limited in other legal proceedings, but may be pledged and
transferred according to the applicable laws;
	 
	 	10.1.5	 	There is neither existing or pending litigation, arbitration or administrative
proceedings against the Pledged Rights and/or the Pledgor nor any such threat;
	 
	 	10.1.6	 	The Pledgor’s execution of this Agreement, exercise of the rights under this Agreement,
or performance of the obligations under this Agreement will not violate any document or
legal provision applicable to the Pledgor or its properties;
	 
	 	10.1.7	 	The pledge created under this Agreement constitutes an effective security of the
secured debts, may be implemented according to its clauses, and shall not be restricted
by any other’s rights, interests or claims at a preferential or equal status;
	 
	 	10.1.8	 	All documents delivered by the Pledgor to the Pledgee and relevant to this Agreement
are authentic, complete and accurate in all substantive aspects, and there is no omission
that might cause any information in such documents to be in any way incorrect or
misleading;
	 
	 	10.1.9	 	This Agreement constitutes lawful, effective and binding obligations to the Pledgor,
and may be subject to compulsory enforcement according to its clauses upon application.

	10.2	 	The Pledgee hereby makes representations, commitments and warranties to the Pledgor:

	 	10.2.1	 	The Pledgee is a lawfully established and validly existing limited liability company,
has the right to conclude this Agreement and is able to perform its obligations under
this Agreement.
	 
	 	10.2.2	 	The Pledgee has obtained all authorizations and consents for executing and performing
this Agreement.

	11	 	Breach Liability
	 
	11.1	 	If Party A or Party B (each, a “Party”) directly or indirectly violates any provision
hereunder or fails to perform or fails to timely and fully perform any of its obligations
hereunder and thus constitutes a breach of this Agreement, the non-defaulting Party (the
“Non-Defaulting Party”) shall have the right to send a written notification requiring the
defaulting Party (the “Defaulting Party”) to make corrections, take adequate, effective and
timely measures to eliminate the effect thus caused, and indemnify the Non-Defaulting Party
any losses suffered from the Defaulting Party’s breach of contract.
	 
	11.2	 	Upon occurrence of any breach of contract, if the Non-Defaulting Party, based on reasonable
and objective judgment, believes that such breach of contract has caused it impossible or
unfair for the Non-Defaulting Party to perform its corresponding obligations hereunder, then
the Non-Defaulting Party may notify the Defaulting Party in writing that it will suspend its performance of its corresponding obligations hereunder, until the Defaulting Party has stopped

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	 	 	its breach of contract, taken adequate, effective and timely measures to eliminate the effect
thus caused, and indemnified the Non-Defaulting Party any losses suffered from the Defaulting
Party’s breach of contract.
	 
	11.3	 	The Non-Defaulting Party’s losses to be indemnified by the Defaulting Party due to its breach
of contract shall include the direct economic losses suffered by the Non-Defaulting Party due
to the breach of contract and any expectable indirect losses and additional fees and costs,
including but not limited to the lawyer’s fee, legal cost, arbitration cost, financial cost
and travel cost, etc.
	 
	12	 	Force Majeure
	 
	12.1	 	A Force Majeure Event refers to any event uncontrollable, unpredictable, or unavoidable even
predicted by the Parties hereunder, which interferes, affects or delays any Party’s
performance of the whole or part of its obligations hereunder. Such events shall include,
without limitation, the government’s act, acts of God, war, hacker’s attack or any other
similar event.
	 
	12.2	 	Any Party suffering from a Force Majeure Event may suspend its performance of its relevant
obligations hereunder thus prevented, without having to undertake any liability for breach of
contract, until the effect of such Force Majeure Event is eliminated. However, such affected
Party shall try its best to overcome such Force Majeure Event and reduce its adverse effect.
	 
	12.3	 	The Party affected by a Force Majeure Event shall provide the other Party with a legal
certificate issued by the local notary public (or any other competent organ) for certifying
such Force Majeure Event; otherwise, the other Party may request it to undertake breach
liability according to this Agreement.
	 
	13	 	Effectiveness, Amendment and Termination
	 
	13.1	 	This Agreement shall become effective upon the satisfaction of the following conditions:

	 	13.1.1	 	The pledgor and the Pledgee have formally executed this Agreement;
	 
	 	13.1.2	 	The pledge of the shares under this Agreement has been recorded in StarVI Company’s
register of shareholders.

	13.2	 	Both parties may, after negotiations, amend this Agreement in the form of a written agreement
at any time.
	 
	13.3	 	This Agreement shall be terminated when any of the following circumstances arises:

	 	13.3.1	 	The duration of the right of pledge has elapsed;
	 
	 	13.3.2	 	Both parties rescind the pledge of the shares under this Agreement according to the
clause of “Rescission of the Right of Pledge” in this Agreement;
	 
	 	13.3.3	 	The Pledgee and the Pledgor agree after negotiations to terminate this Agreement;
	 
	 	13.3.4	 	The Pledgee unilaterally consents on terminating this Agreement in advance.

	13.4	 	The early termination of this Agreement shall not affect either party’s rights or obligations
accrued under this Agreement prior to the date when this Agreement was early terminated.
	 
	14	 	Dispute Settlement
	 
	14.1	 	Any dispute arising out of interpretation or performance hereof shall be settled through
friendly negotiation between the Parties.
	 
	14.2	 	If such negotiation fails, both Parties shall submit such dispute to China International
Economic and Trade Arbitration Commission for arbitration according its current arbitration
rules. The place of arbitration shall be Beijing, and the language of arbitration shall be
Chinese. The arbitration award shall be final and binding on both Parties.
	 
	14.3	 	The formation, effectiveness, performance and interpretation hereof as well as dispute
settlement shall be governed by the laws of the People’s Republic of China.
	 
	15	 	Miscellaneous
	 
	15.1	 	This Agreement is executed in triplicate, with each Party holding one, one copy for notary,
all of which shall be of the same legal effect.
	 
	15.2	 	The headings used in this Agreement are for convenience only, and shall not affect the
interpretation of any provision hereof.

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	15.3	 	Both Parties may modify and supplement this Agreement through written agreements. Such
written agreement of modification or supplementation executed by both Parties shall constitute
a part of, and be of the same legal effect as, this Agreement.
	 
	15.4	 	If any provision hereunder is held invalid or unenforceable in whole or in part due to
violating laws or regulations or any other reason, the affected part of such provision shall
be deemed deleted from the Agreement. The deletion of such affected part shall not affect the
validity and enforceability of the other parts of such provision or that of other provisions
hereof. Both Parties shall negotiate and enter into new provisions so as to replace such
invalid or unenforceable provision.
	 
	15.5	 	Unless otherwise provided, any Party’s failure or delay in exercising any right, power or
privilege shall not be deemed as a waiver of such right, power or privilege. Any single or
partial exercise of any right, power or privilege shall not preclude exercise of any other
right, power or privilege.
	 
	15.6	 	This Agreement constitutes the entire agreement between the Parties with respect to the
subject matter hereof and supersede any and all previous or simultaneous oral and written
agreements, understandings and communication between the Parties relating to such subject
matter. Unless otherwise expressly provided herein, there shall not be any other express or
implied obligations or undertakings between the Parties.
	 
	15.7	 	This Agreement shall be binding upon both parties and their respective successors and
qualified assignees.
	 
	15.8	 	Any other matters not contemplated hereunder shall be subject to further negotiation between
the Parties.

 
	 	 	 	 	 	 	 	 	 
	Shareholder	 	 	 	SINA.com Technology (China) Co., Ltd.	 	 
	 
	 	 	 	 	 	 	 	 
	Handwritten Signature:

	 	/s/
	 	Authorized Representative:	 	/s/
	 	 
	 

	 	 
	 	 	 	 	 	 

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Share Pledge Agreement

This Share Pledge Agreement is entered into in Haidian District, Beijing between the following
parties on 18 (Day) 08 (Month) 2007 (Year):

Party A: HX Yan (hereinafter referred to as the “Pledgor”)

ID No.:

Party B: SINA.com Technology (China) Co., Ltd. (hereinafter referred to as the “Pledgee”)

Address: Room 1506, Ideal Plaza, 58 Bei Si Huan Xi Road, Haidian District, Beijing

Whereas:

	(1)	 	The Pledgor is a shareholder of Guangzhou Media Message Technologies Co., Ltd. (hereinafter
referred to as “Xunlong”), and owns 40% of Xunlong’s shares;
	 
	(2)	 	All of the Pledgor’s investments in Xunlong were sourced from the loan(s) provided by the
Pledgee to the Pledgor in accordance with an agreement between the Pledgor and the Pledgee
regarding the aforesaid loan(s) (hereinafter referred to as the “Loan Agreement”), the Pledgor
bears RMB 4,000,000 Yuan of debt to the Pledgee;
	 
	(3)	 	The Pledgor and the Pledgee entered into an Agreement on Authorization to Exercise
Shareholder’s Voting Power (the “Share Rights Agreement”) on 18 (Day) 08
(Month) 2007 (Year), and according to the Share Rights Agreement, in the case that
the Pledgor breaches the Share Rights Agreement, the Pledgor shall pay liquidated damages;
	 
	(4)	 	Xunlong Company and the Pledgee entered into a “Trademark License Agreement” on 18
(Day) 08 (Month) 2007 (Year), and according to the Trademark License
Agreement, Xunlong Company shall pay corresponding royalties for trademark licensed by the
Pledgee to Xunlong Company;
	 
	(5)	 	Xunlong Company and the Pledgee entered into a “Technical Services Agreement” on 18
(Day) 08 (Month) 2007 (Year), and according to the Technical Service
Agreement, Xunlong Company shall, as the case may be, pay corresponding technology transfer
fee, technology license fee, technical service fee, equipment assignment fee and/or equipment
rental, etc. to the Pledgee;
	 
	(6)	 	The Pledgor agrees to pledge all of its shares in Xunlong Company and all other rights
relevant to the said share rights to the Pledgee as a collateral security for the Pledgor to
pay off all debts to the Pledgee and for Xunlong Company to perform its payment obligation
pursuant to the Trademark License Agreement and the Technical Services Agreement and other
relevant obligations; the Pledgee agrees to accept such security.

Therefore, both parties agree as follows after equal and friendly negotiations:

	1	 	Interpretation and Definitions
	 
	1.1	 	In this Agreement, unless otherwise specified in the context, the following terms shall be
interpreted according to their respective meanings defined in the following clauses.
	 
	1.2	 	Secured Debts: shall mean the following debts:

	 	1.2.1	 	all the principal, interest, overdue interest, liquidated damages, indemnities
which the Pledgor shall pay to the Pledgee under the Loan Agreement, as well as all
expenditures (including the lawyer’s fee) and other amounts paid by the Pledgee for
enforcing its rights under the Loan Agreement when the Pledgor breaches the Agreement;
	 
	 	1.2.2	 	all liquidated damages which the Pledgor shall pay to the Pledgee under the Share
Rights Agreement, the interest of the liquidated damages, the overdue interest, as well
as all expenditures (including the lawyer’s fee) and other amounts paid by the Pledgee
for enforcing its rights under the Share Rights Agreement when the Pledgor breaches the
Share Rights Agreement;
	 
	 	1.2.3	 	all royalties for trademark license, the liquidated damages and other relevant
fees which Xunlong Company shall pay to the Pledgee under the Trademark License
Agreement, as well as all expenditures (including the lawyer’s fee) and other amounts
paid by the Pledgee for enforcing its rights under the Trademark License Agreement when
Xunlong Company breaches the Agreement;
	 
	 	1.2.4	 	the technology transfer fee, technology license fee, technical service fee,
equipment assignment fee and/or equipment rental, etc., the liquidated damages and other
relevant

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	 	 	 	fees, which Xunlong Company shall pay to the Pledgee under the Technical
Services Agreement, as well as all expenditures (including the lawyer’s fee) and other
amounts paid by the Pledgee for enforcing its rights under the Technical Services
Agreement when Xunlong Company breaches the Technical Services Agreement.

	1.3	 	Pledged Rights: shall mean the Pledgor’s shares in Xunlong Company and all other rights
relevant to such shares. Specifically, the Pledged Rights include but are not limited to the
following rights:

	 	1.3.1	 	all dividends, profit distributions, extra dividends, allocated shares and any
other kind of funds relevant to the Pledged Rights, as well as corresponding rights and
interests, which the Pledgor shall be entitled to receive from Xunlong Company at present
or in the future;
	 
	 	1.3.2	 	the rights enjoyed by the Pledgor in determining Xunlong Company’s operational
guidelines, investment plans and other major matters as well as on electing and changing
directors and supervisors, which are corresponding to the Pledged Rights it holds;
	 
	 	1.3.3	 	all interests warranted, confirmed and promised by other parties under Xunlong
Company’s articles of association and other organizational documents to the Pledgor;
	 
	 	1.3.4	 	the Pledgor’s right of claiming against any party to Xunlong Company’s articles of
association or any other organizational document for compensation due to any breach;
	 
	 	1.3.5	 	the Pledgor’s right of consenting to or opposing the rescission, amendment or
termination of Xunlong Company’s articles of association and other organizational
documents due to the Pledged Rights it holds;
	 
	 	1.3.6	 	Other powers and rights relevant to the Pledged Rights, which the Pledgor is
entitled to according to relevant laws and regulations of China as well as Xunlong
Company’s articles of association and other organizational documents.

	2	 	Pledge of Stock Rights
	 
	2.1	 	The Pledgor warrants that it will, pursuant to the Loan Agreement and the Share Rights
Agreement, pays off relevant debts to the Pledgee, and meanwhile provide guaranty for Xunlong
Company to perform the payment obligation and other relevant obligations under the Trademark
License Agreement and the Technical Services Agreement. Therefore, the Pledgor agrees to
pledge the Pledged Rights to the Pledgee.
	 
	2.2	 	The Pledgor shall, on the date of execution of this Agreement, submit to the Pledgee the
following documents:

	 	2.2.1	 	the investment certificate issued by Xunlong Company to the Pledgor evidencing
that the Pledgor lawfully holds the Pledged Stock Rights;
	 
	 	2.2.2	 	the written documents showing that Xunlong Company’s other shareholders agree with
the Pledgor on establishing the pledge of share rights under this Agreement;
	 
	 	2.2.3	 	all other materials and documents reasonably required by the Pledgee.

	2.3	 	The Pledgor shall deliver the capital contribution certificate to the Pledgee on the date of
effectiveness of this Agreement, and go through the procedures for record of modification of
the share register in Xunlong Company.
	 
	3	 	Scope of Security
	 
	3.1	 	The scope of security of the Pledged Stock Rights under this Agreement shall cover:

	 	3.1.1	 	the Secured Debts as defined in Article 1.2 of this Agreement;
	 
	 	3.1.2	 	the expenditures paid by the Pledgee for enforcing its right of pledge under this
Agreement.

	4	 	Term of Right of Pledge
	 
	4.1	 	The valid duration of the right of pledge which the Pledgee enjoys under this Agreement shall
commence on the effectiveness date of this Agreement until the three-year anniversary of the
date when the last sum of guaranteed debt is due.
	 
	5	 	Exercise of the Right of Pledge
	 
	5.1	 	In the event that the Pledgor fails to pay off its debts under the Loan Agreement or the
Share Rights Agreement to the Pledgee on time, or Xunlong Company fails to perform its payment
obligation or other relevant obligations to the Pledgee under the Trademark License

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	 	 	Agreement
or the Technical Services Agreement, or the Pledgor breaches its responsibilities or
obligations under this Agreement, the Pledgee shall be entitled to, within a scope permitted
by the applicable laws, exercise the right of pledge at any time it considers appropriate
within the duration of the right of pledge and in a method it considers appropriate. Such
methods shall include but not be limited to:

	 	5.1.1	 	negotiating with the Pledgor on paying off the Secured Debts by transferring to
the Pledgee the Pledged Rights;
	 
	 	5.1.2	 	selling off the Pledged Rights, and paying off the Secured Debts with the proceeds
from the sale;
	 
	 	5.1.3	 	retaining a competent institution to auction total or partial Pledged Rights;
and/or
	 
	 	5.1.4	 	disposing of the Pledged Rights by taking other appropriate measures permitted by
the applicable laws.

	5.2	 	In the process when the Pledgee disposes of the Pledged Rights according to the preceding
paragraph, the Pledgee shall be entitled to:

	 	5.2.1	 	substitute the Pledgor to exercise the powers or rights relevant to the Pledged
Rights as Xunlong Company’s shareholder;
	 
	 	5.2.2	 	pay necessary money for exercising any power or right imposed by this Agreement or
the law upon the Pledgee;
	 
	 	5.2.3	 	exercise in a way it considers appropriate or permit other person to exercise any
power or right under the Pledged Rights;
	 
	 	5.2.4	 	recover or claim the money payable to the Pledgor arising from the Pledged Rights
for paying off the Secured Debts;
	 
	 	5.2.5	 	with respect to claim by any person for the rights relevant to the Pledged Rights
in any respect, make settlement, reach reconciliation, resort to arbitration or
litigation proceedings or seek any other measures it considers appropriate;
	 
	 	5.2.6	 	take all other actions permitted by law for the purpose of enforcing any of its
rights under this Agreement.

	5.3	 	At the Pledgee’s request, the Pledgor must assist the Pledgee in obtaining all necessary
approvals or consents relevant to the Pledgee’s enforcement of its credit rights and the right
of pledge.
	 
	5.4	 	Within the duration of the right of pledge, the Pledgee shall be entitled to collect the
legal fruits of the Pledged Rights.
	 
	5.5	 	All the money collected by the Pledgee from the exercise of its right of pledge (including
but not limited to the price obtained from disposing of the Pledged Rights and any proceeds
derived from the Pledged Rights) shall be put into use in the following order on the premise
of not violating other clauses of this Agreement:

	 	5.5.1	 	It shall be at first used to pay all the expenses incurred to the Pledgee due to
exercise of the right of pledge and/or other rights under this Agreement;
	 
	 	5.5.2	 	Then, it shall be used by the Pledgee to pay off the Secured Debts according to
law;
	 
	 	5.5.3	 	If there is still remaining amount after the Secured Debts are paid off, the said
amount shall be paid to the Pledgor or the person who is entitled to receive it, with no
interest being paid.

	6	 	Rescission of the Right of Pledge
	 
	6.1	 	If, at any time within the effective duration of the right of pledge, the secured debts are
fully paid off, and the Pledgor no longer bears any obligation or liability under this
Agreement, the Pledgee’s right of pledge under this Agreement shall be extinct on the date
when all the Secured Debts are paid off. In such a case, at the Pledgor’s request, the Pledgee
shall execute the written documents on the pledge of shares created under this Agreement and
deliver them to the Pledgor, or assist the Pledgor in going through other procedures for
rescinding the pledge of shares under this Agreement.
	 
	6.2	 	Unless otherwise prescribed in the preceding paragraph, the pledge of shares under this
Agreement shall not be rescinded without the Pledgee’s prior written consent.
	 
	7	 	Nature of Security
	 
	7.1	 	The guaranty under this Agreement shall not be affected by other guaranties held by the

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	 	 	Pledgee regarding the Secured Debts, and shall not affect the effectiveness of those other
securities, either.

	7.2	 	Neither the security nor the Pledgee’s rights under this Agreement shall be rescinded or
affected due to any of the following circumstances:

	 	7.2.1	 	the Pledgee’s offering a grace period to, rescission or mitigation of any person’s
debts at any time;
	 
	 	7.2.2	 	any amendment, modification or supplement to the Loan Agreement, the Share Rights
Agreement, the Trademark License Agreement and/or the Technical Services Agreement;
	 
	 	7.2.3	 	any disposal, modification or rescission of any other guaranty of the relevant
secured debts;
	 
	 	7.2.4	 	reconciliation reached on the claims raised by any person between the Pledgee and
such person;
	 
	 	7.2.5	 	any delay, act, nonfeasance or mistake arising out of the Pledgee’s exercise of
its rights;
	 
	 	7.2.6	 	any circumstance which the Loan Agreement, the Share Rights Agreement, the
Trademark License Agreement and/or the Technical Services Agreement or the performance
thereof are considered ineffective; or
	 
	 	7.2.7	 	any other event which might otherwise affect the Pledgor’s obligations under this
Agreement.

	8	 	Public Notarial Procedures
	 
	8.1	 	After the effectiveness of this Agreement, the Pledgor shall, at the Pledgee’s request,
cooperate with the Pledgee in going together to lawful public notary office to go through the
notarial procedures as required by this Agreement, and shall provide all necessary cooperation
as per the public notary office’s requirements.
	 
	8.2	 	All expenses incurred from the above mentioned notarial procedures shall be solely borne by
the Pledgee.
	 
	9	 	Special Provisions
	 
	9.1	 	Without the Pledgee’s prior written consent, the Pledgor shall not assign any right it may
enjoy under this Agreement or any obligation it shall bear hereunder to any other party.
	 
	9.2	 	The Pledgee shall be entitled to assign any of its rights or obligations under this Agreement
to any third party at any time without being consented by the Pledgor. In such a case, the
Pledgor shall unconditionally cooperate with the Pledgee in going through relevant procedures
for assignment of the rights and obligations, including but not limited to execution of
relevant agreement on change of contractual parties.
	 
	9.3	 	After the procedures for pledge of the shares under this Agreement are completed, unless the
Pledgee makes a reverse decision and informs the Pledgor, the Pledgor shall be obligated to
continue abiding by the legal provisions concerning the Pledged Rights, performing all rights
and obligations relevant to the Pledged Rights (including but not limited to exercising all
its powers and rights relevant to the Pledged Rights under Xunlong Company’s articles of
association), and fulfilling the prudence and credibility obligations which a shareholder
shall fulfill.
	 
	9.4	 	The Pledgee shall bear no obligation or legal liability for the Pledged Rights, nor does it
have to perform any obligation that the Pledgor shall bear for the Pledged Rights. Without
prejudice to the Pledgee’s rights under this Agreement, the Pledgee shall bear no obligation
or legal liability to others for the Pledged Rights under this Agreement.
	 
	9.5	 	The Pledgor must timely notify the Pledgee of any event that might affect the Pledged Stock
Rights or the value of the Pledged Stock Rights or might impede the Pledgor from performing
its rights as Xunlong Company’s shareholder or harm or delay its performing such rights.
	 
	9.6	 	Without the Pledgee’s prior consent, the Pledgor may not conduct any of the following acts:

	 	9.6.1	 	Amending or modifying in any other way Xunlong Company’s articles of association;
	 
	 	9.6.2	 	Establishing any further guaranty on the Pledged Rights beside the pledge created
under this Agreement;
	 
	 	9.6.3	 	Disposing of any interest of the Pledged Rights in any way;

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	 	9.6.4	 	Conducting any act that might harm the Pledgee’s Pledged Rights or any of its
rights under this Agreement.

	9.7	 	Without the Pledgee’s written consent, the Pledgor shall not have the Pledged Rights
transferred or re-pledged, or dispose of the Pledged Rights in any other way which may harm
the right of pledge enjoyed by the Pledgee under this Agreement.
	 
	10	 	Representations, Commitments and Warranties
	 
	10.1	 	The pledgor hereby makes representations, commitments and warranties to the Pledgee as
follows:

	 	10.1.1	 	The Pledgor has lawful eligibility and necessary power to conclude this Agreement and
is able to entirely perform any of its obligations under this Agreement;
	 
	 	10.1.2	 	The Pledgor has lawfully performed its obligation of contributing investments to
Xunlong Company; is the only holder of the Pledged Rights; and has lawful, complete and
full ownership over all the Pledged Rights under this Agreement;
	 
	 	10.1.3	 	Xunlong Company’s shareholders’ meeting has adopted a resolution on consenting to the
pledge of shares pursuant to this Agreement;
	 
	 	10.1.4	 	Except the pledge established in this Agreement, the Pledgor has not established or
permitted others to establish any security right on the Pledged Rights without the
Pledgee’s prior written consent; the Pledged Rights are involved in no ownership dispute,
are not distained or limited in other legal proceedings, but may be pledged and
transferred according to the applicable laws;
	 
	 	10.1.5	 	There is neither existing or pending litigation, arbitration or administrative
proceedings against the Pledged Rights and/or the Pledgor nor any such threat;
	 
	 	10.1.6	 	The Pledgor’s execution of this Agreement, exercise of the rights under this Agreement,
or performance of the obligations under this Agreement will not violate any document or
legal provision applicable to the Pledgor or its properties;
	 
	 	10.1.7	 	The pledge created under this Agreement constitutes an effective security of the
secured debts, may be implemented according to its clauses, and shall not be restricted
by any other’s rights, interests or claims at a preferential or equal status;
	 
	 	10.1.8	 	All documents delivered by the Pledgor to the Pledgee and relevant to this Agreement
are authentic, complete and accurate in all substantive aspects, and there is no omission
that might cause any information in such documents to be in any way incorrect or
misleading;
	 
	 	10.1.9	 	This Agreement constitutes lawful, effective and binding obligations to the Pledgor,
and may be subject to compulsory enforcement according to its clauses upon application.

	10.2	 	The Pledgee hereby makes representations, commitments and warranties to the Pledgor:

	 	10.2.1	 	The Pledgee is a lawfully established and validly existing limited liability company,
has the right to conclude this Agreement and is able to perform its obligations under
this Agreement.
	 
	 	10.2.2	 	The Pledgee has obtained all authorizations and consents for executing and performing
this Agreement.

	11	 	Breach Liability
	 
	11.1	 	If Party A or Party B (each, a “Party”) directly or indirectly violates any provision
hereunder or fails to perform or fails to timely and fully perform any of its obligations
hereunder and thus constitutes a breach of this Agreement, the non-defaulting Party (the
“Non-Defaulting Party”) shall have the right to send a written notification requiring the
defaulting Party (the “Defaulting Party”) to make corrections, take adequate, effective and
timely measures to eliminate the effect thus caused, and indemnify the Non-Defaulting Party
any losses suffered from the Defaulting Party’s breach of contract.
	 
	11.2	 	Upon occurrence of any breach of contract, if the Non-Defaulting Party, based on reasonable
and objective judgment, believes that such breach of contract has caused it impossible or
unfair for the Non-Defaulting Party to perform its corresponding obligations hereunder, then
the Non-Defaulting Party may notify the Defaulting Party in writing that it will suspend its

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	 	 	performance of its corresponding obligations hereunder, until the Defaulting Party has stopped
its breach of contract, taken adequate, effective and timely measures to eliminate the effect
thus caused, and indemnified the Non-Defaulting Party any losses suffered from the Defaulting
Party’s breach of contract.
	 
	11.3	 	The Non-Defaulting Party’s losses to be indemnified by the Defaulting Party due to its breach
of contract shall include the direct economic losses suffered by the Non-Defaulting Party due
to the breach of contract and any expectable indirect losses and additional fees and costs,
including but not limited to the lawyer’s fee, legal cost, arbitration cost, financial cost
and travel cost, etc.
	 
	12	 	Force Majeure
	 
	12.1	 	A Force Majeure Event refers to any event uncontrollable, unpredictable, or unavoidable even
predicted by the Parties hereunder, which interferes, affects or delays any Party’s
performance of the whole or part of its obligations hereunder. Such events shall include,
without limitation, the government’s act, acts of God, war, hacker’s attack or any other
similar event.
	 
	12.2	 	Any Party suffering from a Force Majeure Event may suspend its performance of its relevant
obligations hereunder thus prevented, without having to undertake any liability for breach of
contract, until the effect of such Force Majeure Event is eliminated. However, such affected
Party shall try its best to overcome such Force Majeure Event and reduce its adverse effect.
	 
	12.3	 	The Party affected by a Force Majeure Event shall provide the other Party with a legal
certificate issued by the local notary public (or any other competent organ) for certifying
such Force Majeure Event; otherwise, the other Party may request it to undertake breach
liability according to this Agreement.
	 
	13	 	Effectiveness, Amendment and Termination
	 
	13.1	 	This Agreement shall become effective upon the satisfaction of the following conditions:

	 	13.1.1	 	The pledgor and the Pledgee have formally executed this Agreement;
	 
	 	13.1.2	 	The pledge of the shares under this Agreement has been recorded in Xunlong Company’s
register of shareholders.

	13.2	 	Both parties may, after negotiations, amend this Agreement in the form of a written agreement
at any time.
	 
	13.3	 	This Agreement shall be terminated when any of the following circumstances arises:

	 	13.3.1	 	The duration of the right of pledge has elapsed;
	 
	 	13.3.2	 	Both parties rescind the pledge of the shares under this Agreement according to the
clause of “Rescission of the Right of Pledge” in this Agreement;
	 
	 	13.3.3	 	The Pledgee and the Pledgor agree after negotiations to terminate this Agreement;
	 
	 	13.3.4	 	The Pledgee unilaterally consents on terminating this Agreement in advance.

	13.4	 	The early termination of this Agreement shall not affect either party’s rights or obligations
accrued under this Agreement prior to the date when this Agreement was early terminated.
	 
	14	 	Dispute Settlement
	 
	14.1	 	Any dispute arising out of interpretation or performance hereof shall be settled through
friendly negotiation between the Parties.
	 
	14.2	 	If such negotiation fails, both Parties shall submit such dispute to China International
Economic and Trade Arbitration Commission for arbitration according its current arbitration
rules. The place of arbitration shall be Beijing, and the language of arbitration shall be
Chinese. The arbitration award shall be final and binding on both Parties.
	 
	14.3	 	The formation, effectiveness, performance and interpretation hereof as well as dispute
settlement shall be governed by the laws of the People’s Republic of China.
	 
	15	 	Miscellaneous
	 
	15.1	 	This Agreement is executed in triplicate, with each Party holding one, one copy for notary,
all of which shall be of the same legal effect.

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	15.2	 	The headings used in this Agreement are for convenience only, and shall not affect the
interpretation of any provision hereof.
	 
	15.3	 	Both Parties may modify and supplement this Agreement through written agreements. Such
written agreement of modification or supplementation executed by both Parties shall constitute
a part of, and be of the same legal effect as, this Agreement.
	 
	15.4	 	If any provision hereunder is held invalid or unenforceable in whole or in part due to
violating laws or regulations or any other reason, the affected part of such provision shall
be deemed deleted from the Agreement. The deletion of such affected part shall not affect the
validity and enforceability of the other parts of such provision or that of other provisions
hereof. Both Parties shall negotiate and enter into new provisions so as to replace such
invalid or unenforceable provision.
	 
	15.5	 	Unless otherwise provided, any Party’s failure or delay in exercising any right, power or
privilege shall not be deemed as a waiver of such right, power or privilege. Any single or
partial exercise of any right, power or privilege shall not preclude exercise of any other
right, power or privilege.
	 
	15.6	 	This Agreement constitutes the entire agreement between the Parties with respect to the
subject matter hereof and supersede any and all previous or simultaneous oral and written
agreements, understandings and communication between the Parties relating to such subject
matter. Unless otherwise expressly provided herein, there shall not be any other express or
implied obligations or undertakings between the Parties.
	 
	15.7	 	This Agreement shall be binding upon both parties and their respective successors and
qualified assignees.
	 
	15.8	 	Any other matters not contemplated hereunder shall be subject to further negotiation between
the Parties.

	 	 	 	 	 	 	 	 	 	 	 
	Shareholder	 	 	 	 	 	SINA.com Technology (China) Co., Ltd.	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	Handwritten Signature:

	 	/s/
	 	 
	 	Authorized Representative:
	 	/s/	 	 
	 

	 	 

	 	 	 	 	 	 

	 	 

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Share Pledge Agreement

This Share Pledge Agreement is entered into in Haidian District, Beijing between the following
parties on 18 (Day) 08 (Month) 2007 (Year):

Party A: B Luo (hereinafter referred to as the “Pledgor”)

ID No.:

Party B: SINA.com Technology (China) Co., Ltd. (hereinafter referred to as the “Pledgee”)

Address: Room 1506, Ideal Plaza, 58 Bei Si Huan Xi Road, Haidian District, Beijing

Whereas:

	(1)	 	The Pledgor is a shareholder of Guangzhou Media Message Technologies Co., Ltd. (hereinafter
referred to as “Xunlong”), and owns 30% of Xunlong’s shares;
	 
	(2)	 	All of the Pledgor’s investments in Xunlong were sourced from the loan(s) provided by the
Pledgee to the Pledgor in accordance with an agreement between the Pledgor and the Pledgee
regarding the aforesaid loan(s) (hereinafter referred to as the “Loan Agreement”), the Pledgor
bears RMB 3,000,000 Yuan of debt to the Pledgee;
	 
	(3)	 	The Pledgor and the Pledgee entered into an Agreement on Authorization to Exercise
Shareholder’s Voting Power (the “Share Rights Agreement”) on 18 (Day) 08
(Month) 2007 (Year), and according to the Share Rights Agreement, in the case that
the Pledgor breaches the Share Rights Agreement, the Pledgor shall pay liquidated damages;
	 
	(4)	 	Xunlong Company and the Pledgee entered into a “Trademark License Agreement” on 18 (Day)
08 (Month) 2007 (Year), and according to the Trademark License
Agreement, Xunlong Company shall pay corresponding royalties for trademark licensed by the
Pledgee to Xunlong Company;
	 
	(5)	 	Xunlong Company and the Pledgee entered into a “Technical Services Agreement” on 18
(Day) 08 (Month) 2007 (Year), and according to the Technical Service
Agreement, Xunlong Company shall, as the case may be, pay corresponding technology transfer
fee, technology license fee, technical service fee, equipment assignment fee and/or equipment
rental, etc. to the Pledgee;
	 
	(6)	 	The Pledgor agrees to pledge all of its shares in Xunlong Company and all other rights
relevant to the said share rights to the Pledgee as a collateral security for the Pledgor to
pay off all debts to the Pledgee and for Xunlong Company to perform its payment obligation
pursuant to the Trademark License Agreement and the Technical Services Agreement and other
relevant obligations; the Pledgee agrees to accept such security.

Therefore, both parties agree as follows after equal and friendly negotiations:

	1	 	Interpretation and Definitions
	 
	1.1	 	In this Agreement, unless otherwise specified in the context, the following terms shall be
interpreted according to their respective meanings defined in the following clauses.
	 
	1.2	 	Secured Debts: shall mean the following debts:

	 	1.2.1	 	all the principal, interest, overdue interest, liquidated damages, indemnities
which the Pledgor shall pay to the Pledgee under the Loan Agreement, as well as all
expenditures (including the lawyer’s fee) and other amounts paid by the Pledgee for
enforcing its rights under the Loan Agreement when the Pledgor breaches the Agreement;
	 
	 	1.2.2	 	all liquidated damages which the Pledgor shall pay to the Pledgee under the Share
Rights Agreement, the interest of the liquidated damages, the overdue interest, as well
as all expenditures (including the lawyer’s fee) and other amounts paid by the Pledgee
for enforcing its rights under the Share Rights Agreement when the Pledgor breaches the
Share Rights Agreement;
	 
	 	1.2.3	 	all royalties for trademark license, the liquidated damages and other relevant
fees which Xunlong Company shall pay to the Pledgee under the Trademark License
Agreement, as well as all expenditures (including the lawyer’s fee) and other amounts
paid by the Pledgee for enforcing its rights under the Trademark License Agreement when
Xunlong Company breaches the Agreement;
	 
	 	1.2.4	 	the technology transfer fee, technology license fee, technical service fee,
equipment
assignment fee and/or equipment rental, etc., the liquidated damages and other
relevant

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	 	 	 	fees, which Xunlong Company shall pay to the Pledgee under the Technical
Services Agreement, as well as all expenditures (including the lawyer’s fee) and other
amounts paid by the Pledgee for enforcing its rights under the Technical Services
Agreement when Xunlong Company breaches the Technical Services Agreement.

	1.3	 	Pledged Rights: shall mean the Pledgor’s shares in Xunlong Company and all other rights
relevant to such shares. Specifically, the Pledged Rights include but are not limited to the
following rights:

	 	1.3.1	 	all dividends, profit distributions, extra dividends, allocated shares and any
other kind of funds relevant to the Pledged Rights, as well as corresponding rights and
interests, which the Pledgor shall be entitled to receive from Xunlong Company at present
or in the future;
	 
	 	1.3.2	 	the rights enjoyed by the Pledgor in determining Xunlong Company’s operational
guidelines, investment plans and other major matters as well as on electing and changing
directors and supervisors, which are corresponding to the Pledged Rights it holds;
	 
	 	1.3.3	 	all interests warranted, confirmed and promised by other parties under Xunlong
Company’s articles of association and other organizational documents to the Pledgor;
	 
	 	1.3.4	 	the Pledgor’s right of claiming against any party to Xunlong Company’s articles of
association or any other organizational document for compensation due to any breach;
	 
	 	1.3.5	 	the Pledgor’s right of consenting to or opposing the rescission, amendment or
termination of Xunlong Company’s articles of association and other organizational
documents due to the Pledged Rights it holds;
	 
	 	1.3.6	 	Other powers and rights relevant to the Pledged Rights, which the Pledgor is
entitled to according to relevant laws and regulations of China as well as Xunlong
Company’s articles of association and other organizational documents.

	2	 	Pledge of Stock Rights
	 
	2.1	 	The Pledgor warrants that it will, pursuant to the Loan Agreement and the Share Rights
Agreement, pays off relevant debts to the Pledgee, and meanwhile provide guaranty for Xunlong
Company to perform the payment obligation and other relevant obligations under the Trademark
License Agreement and the Technical Services Agreement. Therefore, the Pledgor agrees to
pledge the Pledged Rights to the Pledgee.
	 
	2.2	 	The Pledgor shall, on the date of execution of this Agreement, submit to the Pledgee the
following documents:

	 	2.2.1	 	the investment certificate issued by Xunlong Company to the Pledgor evidencing
that the Pledgor lawfully holds the Pledged Stock Rights;
	 
	 	2.2.2	 	the written documents showing that Xunlong Company’s other shareholders agree with
the Pledgor on establishing the pledge of share rights under this Agreement;
	 
	 	2.2.3	 	all other materials and documents reasonably required by the Pledgee.

	2.3	 	The Pledgor shall deliver the capital contribution certificate to the Pledgee on the date of
effectiveness of this Agreement, and go through the procedures for record of modification of
the share register in Xunlong Company.
	 
	3	 	Scope of Security
	 
	3.1	 	The scope of security of the Pledged Stock Rights under this Agreement shall cover:

	 	3.1.1	 	the Secured Debts as defined in Article 1.2 of this Agreement;
	 
	 	3.1.2	 	the expenditures paid by the Pledgee for enforcing its right of pledge under this
Agreement.

	4	 	Term of Right of Pledge
	 
	4.1	 	The valid duration of the right of pledge which the Pledgee enjoys under this Agreement shall
commence on the effectiveness date of this Agreement until the three-year anniversary of the
date when the last sum of guaranteed debt is due.
	 
	5	 	Exercise of the Right of Pledge
	 
	5.1	 	In the event that the Pledgor fails to pay off its debts under the Loan Agreement or the
Share Rights Agreement to the Pledgee on time, or Xunlong Company fails to perform its payment
obligation or other relevant obligations to the Pledgee under the Trademark License 

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	 	 	Agreement
or the Technical Services Agreement, or the Pledgor breaches its responsibilities or
obligations under this Agreement, the Pledgee shall be entitled to, within a scope permitted
by the applicable laws, exercise the right of pledge at any time it considers appropriate
within the duration of the right of pledge and in a method it considers appropriate. Such
methods shall include but not be limited to:

	 	5.1.1	 	negotiating with the Pledgor on paying off the Secured Debts by transferring to
the Pledgee the Pledged Rights;
	 
	 	5.1.2	 	selling off the Pledged Rights, and paying off the Secured Debts with the proceeds
from the sale;
	 
	 	5.1.3	 	retaining a competent institution to auction total or partial Pledged Rights;
and/or
	 
	 	5.1.4	 	disposing of the Pledged Rights by taking other appropriate measures permitted by
the applicable laws.

	5.2	 	In the process when the Pledgee disposes of the Pledged Rights according to the preceding
paragraph, the Pledgee shall be entitled to:

	 	5.2.1	 	substitute the Pledgor to exercise the powers or rights relevant to the Pledged
Rights as Xunlong Company’s shareholder;
	 
	 	5.2.2	 	pay necessary money for exercising any power or right imposed by this Agreement or
the law upon the Pledgee;
	 
	 	5.2.3	 	exercise in a way it considers appropriate or permit other person to exercise any
power or right under the Pledged Rights;
	 
	 	5.2.4	 	recover or claim the money payable to the Pledgor arising from the Pledged Rights
for paying off the Secured Debts;
	 
	 	5.2.5	 	with respect to claim by any person for the rights relevant to the Pledged Rights
in any respect, make settlement, reach reconciliation, resort to arbitration or
litigation proceedings or seek any other measures it considers appropriate;
	 
	 	5.2.6	 	take all other actions permitted by law for the purpose of enforcing any of its
rights under this Agreement.

	5.3	 	At the Pledgee’s request, the Pledgor must assist the Pledgee in obtaining all necessary
approvals or consents relevant to the Pledgee’s enforcement of its credit rights and the right
of pledge.
	 
	5.4	 	Within the duration of the right of pledge, the Pledgee shall be entitled to collect the
legal fruits of the Pledged Rights.
	 
	5.5	 	All the money collected by the Pledgee from the exercise of its right of pledge (including
but not limited to the price obtained from disposing of the Pledged Rights and any proceeds
derived from the Pledged Rights) shall be put into use in the following order on the premise
of not violating other clauses of this Agreement:

	 	5.5.1	 	It shall be at first used to pay all the expenses incurred to the Pledgee due to
exercise of the right of pledge and/or other rights under this Agreement;
	 
	 	5.5.2	 	Then, it shall be used by the Pledgee to pay off the Secured Debts according to
law;
	 
	 	5.5.3	 	If there is still remaining amount after the Secured Debts are paid off, the said
amount shall be paid to the Pledgor or the person who is entitled to receive it, with no
interest being paid.

	6	 	Rescission of the Right of Pledge
	 
	6.1	 	If, at any time within the effective duration of the right of pledge, the secured debts are
fully paid off, and the Pledgor no longer bears any obligation or liability under this
Agreement, the Pledgee’s right of pledge under this Agreement shall be extinct on the date
when all the Secured Debts are paid off. In such a case, at the Pledgor’s request, the Pledgee
shall execute the written documents on the pledge of shares created under this Agreement and
deliver them to the Pledgor, or assist the Pledgor in going through other procedures for
rescinding the pledge of shares under this Agreement.
	 
	6.2	 	Unless otherwise prescribed in the preceding paragraph, the pledge of shares under this
Agreement shall not be rescinded without the Pledgee’s prior written consent.
	 
	7	 	Nature of Security
	 
	7.1	 	The guaranty under this Agreement shall not be affected by other guaranties held by the

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	 	 	Pledgee regarding the Secured Debts, and shall not affect the effectiveness of those other
securities, either.

	7.2	 	Neither the security nor the Pledgee’s rights under this Agreement shall be rescinded or
affected due to any of the following circumstances:

	 	7.2.1	 	the Pledgee’s offering a grace period to, rescission or mitigation of any person’s
debts at any time;
	 
	 	7.2.2	 	any amendment, modification or supplement to the Loan Agreement, the Share Rights
Agreement, the Trademark License Agreement and/or the Technical Services Agreement;
	 
	 	7.2.3	 	any disposal, modification or rescission of any other guaranty of the relevant
secured debts;
	 
	 	7.2.4	 	reconciliation reached on the claims raised by any person between the Pledgee and
such person;
	 
	 	7.2.5	 	any delay, act, nonfeasance or mistake arising out of the Pledgee’s exercise of
its rights;
	 
	 	7.2.6	 	any circumstance which the Loan Agreement, the Share Rights Agreement, the
Trademark License Agreement and/or the Technical Services Agreement or the performance
thereof are considered ineffective; or
	 
	 	7.2.7	 	any other event which might otherwise affect the Pledgor’s obligations under this
Agreement.

	8	 	Public Notarial Procedures
	 
	8.1	 	After the effectiveness of this Agreement, the Pledgor shall, at the Pledgee’s request,
cooperate with the Pledgee in going together to lawful public notary office to go through the
notarial procedures as required by this Agreement, and shall provide all necessary cooperation
as per the public notary office’s requirements.
	 
	8.2	 	All expenses incurred from the above mentioned notarial procedures shall be solely borne by
the Pledgee.
	 
	9	 	Special Provisions
	 
	9.1	 	Without the Pledgee’s prior written consent, the Pledgor shall not assign any right it may
enjoy under this Agreement or any obligation it shall bear hereunder to any other party.
	 
	9.2	 	The Pledgee shall be entitled to assign any of its rights or obligations under this Agreement
to any third party at any time without being consented by the Pledgor. In such a case, the
Pledgor shall unconditionally cooperate with the Pledgee in going through relevant procedures
for assignment of the rights and obligations, including but not limited to execution of
relevant agreement on change of contractual parties.
	 
	9.3	 	After the procedures for pledge of the shares under this Agreement are completed, unless the
Pledgee makes a reverse decision and informs the Pledgor, the Pledgor shall be obligated to
continue abiding by the legal provisions concerning the Pledged Rights, performing all rights
and obligations relevant to the Pledged Rights (including but not limited to exercising all
its powers and rights relevant to the Pledged Rights under Xunlong Company’s articles of
association), and fulfilling the prudence and credibility obligations which a shareholder
shall fulfill.
	 
	9.4	 	The Pledgee shall bear no obligation or legal liability for the Pledged Rights, nor does it
have to perform any obligation that the Pledgor shall bear for the Pledged Rights. Without
prejudice to the Pledgee’s rights under this Agreement, the Pledgee shall bear no obligation
or legal liability to others for the Pledged Rights under this Agreement.
	 
	9.5	 	The Pledgor must timely notify the Pledgee of any event that might affect the Pledged Stock
Rights or the value of the Pledged Stock Rights or might impede the Pledgor from performing
its rights as Xunlong Company’s shareholder or harm or delay its performing such rights.
	 
	9.6	 	Without the Pledgee’s prior consent, the Pledgor may not conduct any of the following acts:

	 	9.6.1	 	Amending or modifying in any other way Xunlong Company’s articles of association;
	 
	 	9.6.2	 	Establishing any further guaranty on the Pledged Rights beside the pledge created
under this Agreement;
	 
	 	9.6.3	 	Disposing of any interest of the Pledged Rights in any way;

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	 	9.6.4	 	Conducting any act that might harm the Pledgee’s Pledged Rights or any of its
rights under this Agreement.

	9.7	 	Without the Pledgee’s written consent, the Pledgor shall not have the Pledged Rights
transferred or re-pledged, or dispose of the Pledged Rights in any other way which may harm
the right of pledge enjoyed by the Pledgee under this Agreement.
	 
	10	 	Representations, Commitments and Warranties
	 
	10.1	 	The pledgor hereby makes representations, commitments and warranties to the Pledgee as
follows:

	 	10.1.1	 	The Pledgor has lawful eligibility and necessary power to conclude this Agreement and
is able to entirely perform any of its obligations under this Agreement;
	 
	 	10.1.2	 	The Pledgor has lawfully performed its obligation of contributing investments to
Xunlong Company; is the only holder of the Pledged Rights; and has lawful, complete and
full ownership over all the Pledged Rights under this Agreement;
	 
	 	10.1.3	 	Xunlong Company’s shareholders’ meeting has adopted a resolution on consenting to the
pledge of shares pursuant to this Agreement;
	 
	 	10.1.4	 	Except the pledge established in this Agreement, the Pledgor has not established or
permitted others to establish any security right on the Pledged Rights without the
Pledgee’s prior written consent; the Pledged Rights are involved in no ownership dispute,
are not distained or limited in other legal proceedings, but may be pledged and
transferred according to the applicable laws;
	 
	 	10.1.5	 	There is neither existing or pending litigation, arbitration or administrative
proceedings against the Pledged Rights and/or the Pledgor nor any such threat;
	 
	 	10.1.6	 	The Pledgor’s execution of this Agreement, exercise of the rights under this Agreement,
or performance of the obligations under this Agreement will not violate any document or
legal provision applicable to the Pledgor or its properties;
	 
	 	10.1.7	 	The pledge created under this Agreement constitutes an effective security of the
secured debts, may be implemented according to its clauses, and shall not be restricted
by any other’s rights, interests or claims at a preferential or equal status;
	 
	 	10.1.8	 	All documents delivered by the Pledgor to the Pledgee and relevant to this Agreement
are authentic, complete and accurate in all substantive aspects, and there is no omission
that might cause any information in such documents to be in any way incorrect or
misleading;
	 
	 	10.1.9	 	This Agreement constitutes lawful, effective and binding obligations to the Pledgor,
and may be subject to compulsory enforcement according to its clauses upon application.

	10.2	 	The Pledgee hereby makes representations, commitments and warranties to the Pledgor:

	 	10.2.1	 	The Pledgee is a lawfully established and validly existing limited liability company,
has the right to conclude this Agreement and is able to perform its obligations under
this Agreement.
	 
	 	10.2.2	 	The Pledgee has obtained all authorizations and consents for executing and performing
this Agreement.

	11	 	Breach Liability
	 
	11.1	 	If Party A or Party B (each, a “Party”) directly or indirectly violates any provision
hereunder or fails to perform or fails to timely and fully perform any of its obligations
hereunder and thus constitutes a breach of this Agreement, the non-defaulting Party (the
“Non-Defaulting Party”) shall have the right to send a written notification requiring the
defaulting Party (the “Defaulting Party”) to make corrections, take adequate, effective and
timely measures to eliminate the effect thus caused, and indemnify the Non-Defaulting Party
any losses suffered from the Defaulting Party’s breach of contract.
	 
	11.2	 	Upon occurrence of any breach of contract, if the Non-Defaulting Party, based on reasonable
and objective judgment, believes that such breach of contract has caused it impossible or
unfair for the Non-Defaulting Party to perform its corresponding obligations hereunder, then
the Non-Defaulting Party may notify the Defaulting Party in writing that it will suspend its

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	 	 	performance of its corresponding obligations hereunder, until the Defaulting Party has stopped
its breach of contract, taken adequate, effective and timely measures to eliminate the effect
thus caused, and indemnified the Non-Defaulting Party any losses suffered from the Defaulting
Party’s breach of contract.
	 
	11.3	 	The Non-Defaulting Party’s losses to be indemnified by the Defaulting Party due to its breach
of contract shall include the direct economic losses suffered by the Non-Defaulting Party due
to the breach of contract and any expectable indirect losses and additional fees and costs,
including but not limited to the lawyer’s fee, legal cost, arbitration cost, financial cost
and travel cost, etc.
	 
	12	 	Force Majeure
	 
	12.1	 	A Force Majeure Event refers to any event uncontrollable, unpredictable, or unavoidable even
predicted by the Parties hereunder, which interferes, affects or delays any Party’s
performance of the whole or part of its obligations hereunder. Such events shall include,
without limitation, the government’s act, acts of God, war, hacker’s attack or any other
similar event.
	 
	12.2	 	Any Party suffering from a Force Majeure Event may suspend its performance of its relevant
obligations hereunder thus prevented, without having to undertake any liability for breach of
contract, until the effect of such Force Majeure Event is eliminated. However, such affected
Party shall try its best to overcome such Force Majeure Event and reduce its adverse effect.
	 
	12.3	 	The Party affected by a Force Majeure Event shall provide the other Party with a legal
certificate issued by the local notary public (or any other competent organ) for certifying
such Force Majeure Event; otherwise, the other Party may request it to undertake breach
liability according to this Agreement.
	 
	13	 	Effectiveness, Amendment and Termination
	 
	13.1	 	This Agreement shall become effective upon the satisfaction of the following conditions:

	 	13.1.1	 	The pledgor and the Pledgee have formally executed this Agreement;
	 
	 	13.1.2	 	The pledge of the shares under this Agreement has been recorded in Xunlong Company’s
register of shareholders.

	13.2	 	Both parties may, after negotiations, amend this Agreement in the form of a written agreement
at any time.
	 
	13.3	 	This Agreement shall be terminated when any of the following circumstances arises:

	 	13.3.1	 	The duration of the right of pledge has elapsed;
	 
	 	13.3.2	 	Both parties rescind the pledge of the shares under this Agreement according to the
clause of “Rescission of the Right of Pledge” in this Agreement;
	 
	 	13.3.3	 	The Pledgee and the Pledgor agree after negotiations to terminate this Agreement;
	 
	 	13.3.4	 	The Pledgee unilaterally consents on terminating this Agreement in advance.

	13.4	 	The early termination of this Agreement shall not affect either party’s rights or obligations
accrued under this Agreement prior to the date when this Agreement was early terminated.
	 
	14	 	Dispute Settlement
	 
	14.1	 	Any dispute arising out of interpretation or performance hereof shall be settled through
friendly negotiation between the Parties.
	 
	14.2	 	If such negotiation fails, both Parties shall submit such dispute to China International
Economic and Trade Arbitration Commission for arbitration according its current arbitration
rules. The place of arbitration shall be Beijing, and the language of arbitration shall be
Chinese. The arbitration award shall be final and binding on both Parties.
	 
	14.3	 	The formation, effectiveness, performance and interpretation hereof as well as dispute
settlement shall be governed by the laws of the People’s Republic of China.
	 
	15	 	Miscellaneous
	 
	15.1	 	This Agreement is executed in triplicate, with each Party holding one, one copy for notary,
all of which shall be of the same legal effect.

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	15.2	 	The headings used in this Agreement are for convenience only, and shall not affect the
interpretation of any provision hereof.
	 
	15.3	 	Both Parties may modify and supplement this Agreement through written agreements. Such
written agreement of modification or supplementation executed by both Parties shall constitute
a part of, and be of the same legal effect as, this Agreement.
	 
	15.4	 	If any provision hereunder is held invalid or unenforceable in whole or in part due to
violating laws or regulations or any other reason, the affected part of such provision shall
be deemed deleted from the Agreement. The deletion of such affected part shall not affect the
validity and enforceability of the other parts of such provision or that of other provisions
hereof. Both Parties shall negotiate and enter into new provisions so as to replace such
invalid or unenforceable provision.
	 
	15.5	 	Unless otherwise provided, any Party’s failure or delay in exercising any right, power or
privilege shall not be deemed as a waiver of such right, power or privilege. Any single or
partial exercise of any right, power or privilege shall not preclude exercise of any other
right, power or privilege.
	 
	15.6	 	This Agreement constitutes the entire agreement between the Parties with respect to the
subject matter hereof and supersede any and all previous or simultaneous oral and written
agreements, understandings and communication between the Parties relating to such subject
matter. Unless otherwise expressly provided herein, there shall not be any other express or
implied obligations or undertakings between the Parties.
	 
	15.7	 	This Agreement shall be binding upon both parties and their respective successors and
qualified assignees.
	 
	15.8	 	Any other matters not contemplated hereunder shall be subject to further negotiation between
the Parties.

	 	 	 	 	 	 	 	 	 	 	 
	Shareholder	 	 	 	 	 	SINA.com Technology (China) Co., Ltd.	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	Handwritten Signature:

	 	/s/
	 	 	 	Authorized Representative:
	 	/s/	 	 
	 

	 	 

	 	 
	 	 	 	 

	 	 

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Share Pledge Agreement

This Share Pledge Agreement is entered into in Haidian District, Beijing between the following
parties on 18 (Day) 08 (Month) 2007 (Year):

Party A: B Lin (hereinafter referred to as the “Pledgor”)

ID No.:

Party B: SINA.com Technology (China) Co., Ltd. (hereinafter referred to as the “Pledgee”)

Address: Room 1506, Ideal Plaza, 58 Bei Si Huan Xi Road, Haidian District, Beijing

Whereas:

	(1)	 	The Pledgor is a shareholder of Guangzhou Media Message Technologies Co., Ltd. (hereinafter
referred to as “Xunlong”), and owns 30% of Xunlong’s shares;
	 
	(2)	 	All of the Pledgor’s investments in Xunlong were sourced from the loan(s) provided by the
Pledgee to the Pledgor in accordance with an agreement between the Pledgor and the Pledgee
regarding the aforesaid loan(s) (hereinafter referred to as the “Loan Agreement”), the Pledgor
bears RMB 3,000,000 Yuan of debt to the Pledgee;
	 
	(3)	 	The Pledgor and the Pledgee entered into an Agreement on Authorization to Exercise
Shareholder’s Voting Power (the “Share Rights Agreement”) on  18  (Day) 08 
(Month)  2007  (Year), and according to the Share Rights Agreement, in the case that
the Pledgor breaches the Share Rights Agreement, the Pledgor shall pay liquidated damages;
	 
	(4)	 	Xunlong Company and the Pledgee entered into a “Trademark License Agreement” on  18 
(Day) 08  (Month)  2007  (Year), and according to the Trademark License
Agreement, Xunlong Company shall pay corresponding royalties for trademark licensed by the
Pledgee to Xunlong Company;
	 
	(5)	 	Xunlong Company and the Pledgee entered into a “Technical Services Agreement” on  18 
(Day) 08  (Month)  2007  (Year), and according to the Technical Service
Agreement, Xunlong Company shall, as the case may be, pay corresponding technology transfer
fee, technology license fee, technical service fee, equipment assignment fee and/or equipment
rental, etc. to the Pledgee;
	 
	(6)	 	The Pledgor agrees to pledge all of its shares in Xunlong Company and all other rights
relevant to the said share rights to the Pledgee as a collateral security for the Pledgor to
pay off all debts to the Pledgee and for Xunlong Company to perform its payment obligation
pursuant to the Trademark License Agreement and the Technical Services Agreement and other
relevant obligations; the Pledgee agrees to accept such security.

Therefore, both parties agree as follows after equal and friendly negotiations:

	1	 	Interpretation and Definitions
	 
	1.1	 	In this Agreement, unless otherwise specified in the context, the following terms shall be
interpreted according to their respective meanings defined in the following clauses.
	 
	1.2	 	Secured Debts: shall mean the following debts:

	 	1.2.1	 	all the principal, interest, overdue interest, liquidated damages, indemnities
which the Pledgor shall pay to the Pledgee under the Loan Agreement, as well as all
expenditures (including the lawyer’s fee) and other amounts paid by the Pledgee for
enforcing its rights under the Loan Agreement when the Pledgor breaches the Agreement;
	 
	 	1.2.2	 	all liquidated damages which the Pledgor shall pay to the Pledgee under the Share
Rights Agreement, the interest of the liquidated damages, the overdue interest, as well
as all expenditures (including the lawyer’s fee) and other amounts paid by the Pledgee
for enforcing its rights under the Share Rights Agreement when the Pledgor breaches the
Share Rights Agreement;
	 
	 	1.2.3	 	all royalties for trademark license, the liquidated damages and other relevant
fees which Xunlong Company shall pay to the Pledgee under the Trademark License
Agreement, as well as all expenditures (including the lawyer’s fee) and other amounts
paid by the Pledgee for enforcing its rights under the Trademark License Agreement when
Xunlong Company breaches the Agreement;
	 
	 	1.2.4	 	the technology transfer fee, technology license fee, technical service fee,
equipment assignment fee and/or equipment rental, etc., the liquidated damages and other
relevant

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	 	 	 	fees, which Xunlong Company shall pay to the Pledgee under the Technical Services
Agreement, as well as all expenditures (including the lawyer’s fee) and other amounts
paid by the Pledgee for enforcing its rights under the Technical Services Agreement when
Xunlong Company breaches the Technical Services Agreement.

	1.3	 	Pledged Rights: shall mean the Pledgor’s shares in Xunlong Company and all other rights
relevant to such shares. Specifically, the Pledged Rights include but are not limited to the
following rights:

	 	1.3.1	 	all dividends, profit distributions, extra dividends, allocated shares and any
other kind of funds relevant to the Pledged Rights, as well as corresponding rights and
interests, which the Pledgor shall be entitled to receive from Xunlong Company at present
or in the future;
	 
	 	1.3.2	 	the rights enjoyed by the Pledgor in determining Xunlong Company’s operational
guidelines, investment plans and other major matters as well as on electing and changing
directors and supervisors, which are corresponding to the Pledged Rights it holds;
	 
	 	1.3.3	 	all interests warranted, confirmed and promised by other parties under Xunlong
Company’s articles of association and other organizational documents to the Pledgor;
	 
	 	1.3.4	 	the Pledgor’s right of claiming against any party to Xunlong Company’s articles of
association or any other organizational document for compensation due to any breach;
	 
	 	1.3.5	 	the Pledgor’s right of consenting to or opposing the rescission, amendment or
termination of Xunlong Company’s articles of association and other organizational
documents due to the Pledged Rights it holds;
	 
	 	1.3.6	 	Other powers and rights relevant to the Pledged Rights, which the Pledgor is
entitled to according to relevant laws and regulations of China as well as Xunlong
Company’s articles of association and other organizational documents.

	2	 	Pledge of Stock Rights
	 
	2.1	 	The Pledgor warrants that it will, pursuant to the Loan Agreement and the Share Rights
Agreement, pays off relevant debts to the Pledgee, and meanwhile provide guaranty for Xunlong
Company to perform the payment obligation and other relevant obligations under the Trademark
License Agreement and the Technical Services Agreement. Therefore, the Pledgor agrees to
pledge the Pledged Rights to the Pledgee.
	 
	2.2	 	The Pledgor shall, on the date of execution of this Agreement, submit to the Pledgee the
following documents:

	 	2.2.1	 	the investment certificate issued by Xunlong Company to the Pledgor evidencing
that the Pledgor lawfully holds the Pledged Stock Rights;
	 
	 	2.2.2	 	the written documents showing that Xunlong Company’s other shareholders agree with
the Pledgor on establishing the pledge of share rights under this Agreement;
	 
	 	2.2.3	 	all other materials and documents reasonably required by the Pledgee.

	2.3	 	The Pledgor shall deliver the capital contribution certificate to the Pledgee on the date of
effectiveness of this Agreement, and go through the procedures for record of modification of
the share register in Xunlong Company.
	 
	3	 	Scope of Security
	 
	3.1	 	The scope of security of the Pledged Stock Rights under this Agreement shall cover:

	 	3.1.1	 	the Secured Debts as defined in Article 1.2 of this Agreement;
	 
	 	3.1.2	 	the expenditures paid by the Pledgee for enforcing its right of pledge under this
Agreement.

	4	 	Term of Right of Pledge
	 
	4.1	 	The valid duration of the right of pledge which the Pledgee enjoys under this Agreement shall
commence on the effectiveness date of this Agreement until the three-year anniversary of the
date when the last sum of guaranteed debt is due.
	 
	5	 	Exercise of the Right of Pledge
	 
	5.1	 	In the event that the Pledgor fails to pay off its debts under the Loan Agreement or the
Share Rights Agreement to the Pledgee on time, or Xunlong Company fails to perform its payment
obligation or other relevant obligations to the Pledgee under the Trademark License

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	 	 	Agreement or the Technical Services Agreement, or the Pledgor breaches its responsibilities or
obligations under this Agreement, the Pledgee shall be entitled to, within a scope permitted
by the applicable laws, exercise the right of pledge at any time it considers appropriate
within the duration of the right of pledge and in a method it considers appropriate. Such
methods shall include but not be limited to:

	 	5.1.1	 	negotiating with the Pledgor on paying off the Secured Debts by transferring to
the Pledgee the Pledged Rights;
	 
	 	5.1.2	 	selling off the Pledged Rights, and paying off the Secured Debts with the proceeds
from the sale;
	 
	 	5.1.3	 	retaining a competent institution to auction total or partial Pledged Rights;
and/or
	 
	 	5.1.4	 	disposing of the Pledged Rights by taking other appropriate measures permitted by
the applicable laws.

	5.2	 	In the process when the Pledgee disposes of the Pledged Rights according to the preceding
paragraph, the Pledgee shall be entitled to:

	 	5.2.1	 	substitute the Pledgor to exercise the powers or rights relevant to the Pledged
Rights as Xunlong Company’s shareholder;
	 
	 	5.2.2	 	pay necessary money for exercising any power or right imposed by this Agreement or
the law upon the Pledgee;
	 
	 	5.2.3	 	exercise in a way it considers appropriate or permit other person to exercise any
power or right under the Pledged Rights;
	 
	 	5.2.4	 	recover or claim the money payable to the Pledgor arising from the Pledged Rights
for paying off the Secured Debts;
	 
	 	5.2.5	 	with respect to claim by any person for the rights relevant to the Pledged Rights
in any respect, make settlement, reach reconciliation, resort to arbitration or
litigation proceedings or seek any other measures it considers appropriate;
	 
	 	5.2.6	 	take all other actions permitted by law for the purpose of enforcing any of its
rights under this Agreement.

	5.3	 	At the Pledgee’s request, the Pledgor must assist the Pledgee in obtaining all necessary
approvals or consents relevant to the Pledgee’s enforcement of its credit rights and the right
of pledge.
	 
	5.4	 	Within the duration of the right of pledge, the Pledgee shall be entitled to collect the
legal fruits of the Pledged Rights.
	 
	5.5	 	All the money collected by the Pledgee from the exercise of its right of pledge (including
but not limited to the price obtained from disposing of the Pledged Rights and any proceeds
derived from the Pledged Rights) shall be put into use in the following order on the premise
of not violating other clauses of this Agreement:

	 	5.5.1	 	It shall be at first used to pay all the expenses incurred to the Pledgee due to
exercise
of the right of pledge and/or other rights under this Agreement;
	 
	 	5.5.2	 	Then, it shall be used by the Pledgee to pay off the Secured Debts according to
law;
	 
	 	5.5.3	 	If there is still remaining amount after the Secured Debts are paid off, the said
amount shall be paid to the Pledgor or the person who is entitled to receive it, with no
interest being paid.

	6	 	Rescission of the Right of Pledge
	 
	6.1	 	If, at any time within the effective duration of the right of pledge, the secured debts are
fully paid off, and the Pledgor no longer bears any obligation or liability under this
Agreement, the Pledgee’s right of pledge under this Agreement shall be extinct on the date
when all the Secured Debts are paid off. In such a case, at the Pledgor’s request, the Pledgee
shall execute the written documents on the pledge of shares created under this Agreement and
deliver them to the Pledgor, or assist the Pledgor in going through other procedures for
rescinding the pledge of shares under this Agreement.
	 
	6.2	 	Unless otherwise prescribed in the preceding paragraph, the pledge of shares under this
Agreement shall not be rescinded without the Pledgee’s prior written consent.
	 
	7	 	Nature of Security
	 
	7.1	 	The guaranty under this Agreement shall not be affected by other guaranties held by the

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	 	 	Pledgee regarding the Secured Debts, and shall not affect the effectiveness of those other
securities, either.

	7.2	 	Neither the security nor the Pledgee’s rights under this Agreement shall be rescinded or
affected due to any of the following circumstances:

	 	7.2.1	 	the Pledgee’s offering a grace period to, rescission or mitigation of any person’s
debts at any time;
	 
	 	7.2.2	 	any amendment, modification or supplement to the Loan Agreement, the Share Rights
Agreement, the Trademark License Agreement and/or the Technical Services Agreement;
	 
	 	7.2.3	 	any disposal, modification or rescission of any other guaranty of the relevant
secured debts;
	 
	 	7.2.4	 	reconciliation reached on the claims raised by any person between the Pledgee and
such person;
	 
	 	7.2.5	 	any delay, act, nonfeasance or mistake arising out of the Pledgee’s exercise of
its rights;
	 
	 	7.2.6	 	any circumstance which the Loan Agreement, the Share Rights Agreement, the
Trademark License Agreement and/or the Technical Services Agreement or the performance
thereof are considered ineffective; or
	 
	 	7.2.7	 	any other event which might otherwise affect the Pledgor’s obligations under this
Agreement.

	8	 	Public Notarial Procedures
	 
	8.1	 	After the effectiveness of this Agreement, the Pledgor shall, at the Pledgee’s request,
cooperate with the Pledgee in going together to lawful public notary office to go through the
notarial procedures as required by this Agreement, and shall provide all necessary cooperation
as per the public notary office’s requirements.
	 
	8.2	 	All expenses incurred from the above mentioned notarial procedures shall be solely borne by
the Pledgee.
	 
	9	 	Special Provisions
	 
	9.1	 	Without the Pledgee’s prior written consent, the Pledgor shall not assign any right it may
enjoy under this Agreement or any obligation it shall bear hereunder to any other party.
	 
	9.2	 	The Pledgee shall be entitled to assign any of its rights or obligations under this Agreement
to any third party at any time without being consented by the Pledgor. In such a case, the
Pledgor shall unconditionally cooperate with the Pledgee in going through relevant procedures
for assignment of the rights and obligations, including but not limited to execution of
relevant agreement on change of contractual parties.
	 
	9.3	 	After the procedures for pledge of the shares under this Agreement are completed, unless the
Pledgee makes a reverse decision and informs the Pledgor, the Pledgor shall be obligated to
continue abiding by the legal provisions concerning the Pledged Rights, performing all rights
and obligations relevant to the Pledged Rights (including but not limited to exercising all
its powers and rights relevant to the Pledged Rights under Xunlong Company’s articles of
association), and fulfilling the prudence and credibility obligations which a shareholder
shall fulfill.
	 
	9.4	 	The Pledgee shall bear no obligation or legal liability for the Pledged Rights, nor does it
have to perform any obligation that the Pledgor shall bear for the Pledged Rights. Without
prejudice to the Pledgee’s rights under this Agreement, the Pledgee shall bear no obligation
or legal liability to others for the Pledged Rights under this Agreement.
	 
	9.5	 	The Pledgor must timely notify the Pledgee of any event that might affect the Pledged Stock
Rights or the value of the Pledged Stock Rights or might impede the Pledgor from performing
its rights as Xunlong Company’s shareholder or harm or delay its performing such rights.
	 
	9.6	 	Without the Pledgee’s prior consent, the Pledgor may not conduct any of the following acts:

	 	9.6.1	 	Amending or modifying in any other way Xunlong Company’s articles of association;
	 
	 	9.6.2	 	Establishing any further guaranty on the Pledged Rights beside the pledge created
under this Agreement;
	 
	 	9.6.3	 	Disposing of any interest of the Pledged Rights in any way;

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	 	9.6.4	 	Conducting any act that might harm the Pledgee’s Pledged Rights or any of its
rights under this Agreement.

	9.7	 	Without the Pledgee’s written consent, the Pledgor shall not have the Pledged Rights
transferred or re-pledged, or dispose of the Pledged Rights in any other way which may harm
the right of pledge enjoyed by the Pledgee under this Agreement.
	 
	10	 	Representations, Commitments and Warranties
	 
	10.1	 	The pledgor hereby makes representations, commitments and warranties to the Pledgee as
follows:

	 	10.1.1	 	The Pledgor has lawful eligibility and necessary power to conclude this Agreement and
is able to entirely perform any of its obligations under this Agreement;
	 
	 	10.1.2	 	The Pledgor has lawfully performed its obligation of contributing investments to
Xunlong Company; is the only holder of the Pledged Rights; and has lawful, complete and
full ownership over all the Pledged Rights under this Agreement;
	 
	 	10.1.3	 	Xunlong Company’s shareholders’ meeting has adopted a resolution on consenting to the
pledge of shares pursuant to this Agreement;
	 
	 	10.1.4	 	Except the pledge established in this Agreement, the Pledgor has not established or
permitted others to establish any security right on the Pledged Rights without the
Pledgee’s prior written consent; the Pledged Rights are involved in no ownership dispute,
are not distained or limited in other legal proceedings, but may be pledged and
transferred according to the applicable laws;
	 
	 	10.1.5	 	There is neither existing or pending litigation, arbitration or administrative
proceedings against the Pledged Rights and/or the Pledgor nor any such threat;
	 
	 	10.1.6	 	The Pledgor’s execution of this Agreement, exercise of the rights under this Agreement,
or performance of the obligations under this Agreement will not violate any document or
legal provision applicable to the Pledgor or its properties;
	 
	 	10.1.7	 	The pledge created under this Agreement constitutes an effective security of the
secured debts, may be implemented according to its clauses, and shall not be restricted
by any other’s rights, interests or claims at a preferential or equal status;
	 
	 	10.1.8	 	All documents delivered by the Pledgor to the Pledgee and relevant to this Agreement
are authentic, complete and accurate in all substantive aspects, and there is no omission
that might cause any information in such documents to be in any way incorrect or
misleading;
	 
	 	10.1.9	 	This Agreement constitutes lawful, effective and binding obligations to the Pledgor,
and may be subject to compulsory enforcement according to its clauses upon application.

	10.2	 	The Pledgee hereby makes representations, commitments and warranties to the Pledgor:

	 	10.2.1	 	The Pledgee is a lawfully established and validly existing limited liability company,
has the right to conclude this Agreement and is able to perform its obligations under
this Agreement.
	 
	 	10.2.2	 	The Pledgee has obtained all authorizations and consents for executing and performing
this Agreement.

	11	 	Breach Liability
	 
	11.1	 	If Party A or Party B (each, a “Party”) directly or indirectly violates any provision
hereunder or fails to perform or fails to timely and fully perform any of its obligations
hereunder and thus constitutes a breach of this Agreement, the non-defaulting Party (the
“Non-Defaulting Party”) shall have the right to send a written notification requiring the
defaulting Party (the “Defaulting Party”) to make corrections, take adequate, effective and
timely measures to eliminate the effect thus caused, and indemnify the Non-Defaulting Party
any losses suffered from the Defaulting Party’s breach of contract.
	 
	11.2	 	Upon occurrence of any breach of contract, if the Non-Defaulting Party, based on reasonable
and objective judgment, believes that such breach of contract has caused it impossible or
unfair for the Non-Defaulting Party to perform its corresponding obligations hereunder, then
the Non-Defaulting Party may notify the Defaulting Party in writing that it will suspend its

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	 	 	performance of its corresponding obligations hereunder, until the Defaulting Party has stopped its
breach of contract, taken adequate, effective and timely measures to eliminate the effect thus
caused, and indemnified the Non-Defaulting Party any losses suffered from the Defaulting
Party’s breach of contract.

	11.3	 	The Non-Defaulting Party’s losses to be indemnified by the Defaulting Party due to its breach
of contract shall include the direct economic losses suffered by the Non-Defaulting Party due
to the breach of contract and any expectable indirect losses and additional fees and costs,
including but not limited to the lawyer’s fee, legal cost, arbitration cost, financial cost
and travel cost, etc.
	 
	12	 	Force Majeure
	 
	12.1	 	A Force Majeure Event refers to any event uncontrollable, unpredictable, or unavoidable even
predicted by the Parties hereunder, which interferes, affects or delays any Party’s
performance of the whole or part of its obligations hereunder. Such events shall include,
without limitation, the government’s act, acts of God, war, hacker’s attack or any other
similar event.
	 
	12.2	 	Any Party suffering from a Force Majeure Event may suspend its performance of its relevant
obligations hereunder thus prevented, without having to undertake any liability for breach of
contract, until the effect of such Force Majeure Event is eliminated. However, such affected
Party shall try its best to overcome such Force Majeure Event and reduce its adverse effect.
	 
	12.3	 	The Party affected by a Force Majeure Event shall provide the other Party with a legal
certificate issued by the local notary public (or any other competent organ) for certifying
such Force Majeure Event; otherwise, the other Party may request it to undertake breach
liability according to this Agreement.
	 
	13	 	Effectiveness, Amendment and Termination
	 
	13.1	 	This Agreement shall become effective upon the satisfaction of the following conditions:

	 	13.1.1	 	The pledgor and the Pledgee have formally executed this Agreement;
	 
	 	13.1.2	 	The pledge of the shares under this Agreement has been recorded in Xunlong Company’s
register of shareholders.

	13.2	 	Both parties may, after negotiations, amend this Agreement in the form of a written agreement
at any time.
	 
	13.3	 	This Agreement shall be terminated when any of the following circumstances arises:

	 	13.3.1	 	The duration of the right of pledge has elapsed;
	 
	 	13.3.2	 	Both parties rescind the pledge of the shares under this Agreement according to the
clause of “Rescission of the Right of Pledge” in this Agreement;
	 
	 	13.3.3	 	The Pledgee and the Pledgor agree after negotiations to terminate this Agreement;
	 
	 	13.3.4	 	The Pledgee unilaterally consents on terminating this Agreement in advance.

	13.4	 	The early termination of this Agreement shall not affect either party’s rights or obligations
accrued under this Agreement prior to the date when this Agreement was early terminated.
	 
	14	 	Dispute Settlement
	 
	14.1	 	Any dispute arising out of interpretation or performance hereof shall be settled through
friendly negotiation between the Parties.
	 
	14.2	 	If such negotiation fails, both Parties shall submit such dispute to China International
Economic and Trade Arbitration Commission for arbitration according its current arbitration
rules. The place of arbitration shall be Beijing, and the language of arbitration shall be
Chinese. The arbitration award shall be final and binding on both Parties.
	 
	14.3	 	The formation, effectiveness, performance and interpretation hereof as well as dispute
settlement shall be governed by the laws of the People’s Republic of China.
	 
	15	 	Miscellaneous
	 
	15.1	 	This Agreement is executed in triplicate, with each Party holding one, one copy for notary,
all of which shall be of the same legal effect.

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	15.2	 	The headings used in this Agreement are for convenience only, and shall not affect the
interpretation of any provision hereof.
	 
	15.3	 	Both Parties may modify and supplement this Agreement through written agreements. Such
written agreement of modification or supplementation executed by both Parties shall constitute
a part of, and be of the same legal effect as, this Agreement.
	 
	15.4	 	If any provision hereunder is held invalid or unenforceable in whole or in part due to
violating laws or regulations or any other reason, the affected part of such provision shall
be deemed deleted from the Agreement. The deletion of such affected part shall not affect the
validity and enforceability of the other parts of such provision or that of other provisions
hereof. Both Parties shall negotiate and enter into new provisions so as to replace such
invalid or unenforceable provision.
	 
	15.5	 	Unless otherwise provided, any Party’s failure or delay in exercising any right, power or
privilege shall not be deemed as a waiver of such right, power or privilege. Any single or
partial exercise of any right, power or privilege shall not preclude exercise of any other
right, power or privilege.
	 
	15.6	 	This Agreement constitutes the entire agreement between the Parties with respect to the
subject matter hereof and supersede any and all previous or simultaneous oral and written
agreements, understandings and communication between the Parties relating to such subject
matter. Unless otherwise expressly provided herein, there shall not be any other express or
implied obligations or undertakings between the Parties.
	 
	15.7	 	This Agreement shall be binding upon both parties and their respective successors and
qualified assignees.
	 
	15.8	 	Any other matters not contemplated hereunder shall be subject to further negotiation between
the Parties.

	 	 	 	 	 	 	 	 	 
	Shareholder	 	 	 	SINA.com Technology (China) Co., Ltd.	 	 
	 
	 	 	 	 	 	 	 	 
	Handwritten Signature:

	 	/s/
	 	Authorized Representative:
	 	/s/
	 	 
	 

	 	 
	 	 	 	 	 	 

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Share Pledge Agreement

This Share Pledge Agreement is entered into in Haidian District, Beijing between the following
parties on 18 (Day) 08 (Month) 2007 (Year):

Party A: B Wang (hereinafter referred to as the “Pledgor”)

ID No.:

Party B: SINA.com Technology (China) Co., Ltd. (hereinafter referred to as the “Pledgee”)

Address: Room 1506, Ideal Plaza, 58 Bei Si Huan Xi Road, Haidian District, Beijing

Whereas:

	(1)	 	The Pledgor is a shareholder of Shenzhen Wangxing Technology Co., Ltd. (hereinafter referred
to as “Wangxing”), and owns 40% of Wangxing’s shares;
	 
	(2)	 	All of the Pledgor’s investments in Wangxing were sourced from the loan(s) provided by the
Pledgee to the Pledgor in accordance with an agreement between the Pledgor and the Pledgee
regarding the aforesaid loan(s) (hereinafter referred to as the “Loan Agreement”), the Pledgor
bears RMB 4,000,000 Yuan of debt to the Pledgee;
	 
	(3)	 	The Pledgor and the Pledgee entered into an Agreement on Authorization to Exercise
Shareholder’s Voting Power (the “Share Rights Agreement”) on 18  (Day) 08
(Month) 2007 (Year), and according to the Share Rights Agreement, in the case that
the Pledgor breaches the Share Rights Agreement, the Pledgor shall pay liquidated damages;
	 
	(4)	 	Wangxing Company and the Pledgee entered into a
“Trademark License Agreement” on 18
(Day) 08 (Month) 2007 (Year), and according to the Trademark License
Agreement, Wangxing Company shall pay corresponding royalties for trademark licensed by the
Pledgee to Wangxing Company;
	 
	(5)	 	Wangxing Company and the Pledgee entered into a “Technical Services Agreement” on 18
 (Day) 08 (Month) 2007 (Year), and according to the Technical Service
Agreement, Wangxing Company shall, as the case may be, pay corresponding technology transfer
fee, technology license fee, technical service fee, equipment assignment fee and/or equipment
rental, etc. to the Pledgee;
	 
	(6)	 	The Pledgor agrees to pledge all of its shares in Wangxing Company and all other rights
relevant to the said share rights to the Pledgee as a collateral security for the Pledgor to
pay off all debts to the Pledgee and for Wangxing Company to perform its payment obligation
pursuant to the Trademark License Agreement and the Technical Services Agreement and other
relevant obligations; the Pledgee agrees to accept such security.

Therefore, both parties agree as follows after equal and friendly negotiations:

	1	 	Interpretation and Definitions
	 
	1.1	 	In this Agreement, unless otherwise specified in the context, the following terms shall be
interpreted according to their respective meanings defined in the following clauses.
	 
	1.2	 	Secured Debts: shall mean the following debts:

	 	1.2.1	 	all the principal, interest, overdue interest, liquidated damages, indemnities
which the Pledgor shall pay to the Pledgee under the Loan Agreement, as well as all
expenditures (including the lawyer’s fee) and other amounts paid by the Pledgee for
enforcing its rights under the Loan Agreement when the Pledgor breaches the Agreement;
	 
	 	1.2.2	 	all liquidated damages which the Pledgor shall pay to the Pledgee under the Share
Rights Agreement, the interest of the liquidated damages, the overdue interest, as well
as all expenditures (including the lawyer’s fee) and other amounts paid by the Pledgee
for enforcing its rights under the Share Rights Agreement when the Pledgor breaches the
Share Rights Agreement;
	 
	 	1.2.3	 	all royalties for trademark license, the liquidated damages and other relevant
fees which Wangxing Company shall pay to the Pledgee under the Trademark License
Agreement, as well as all expenditures (including the lawyer’s fee) and other amounts
paid by the Pledgee for enforcing its rights under the Trademark License Agreement when
Wangxing Company breaches the Agreement;
	 
	 	1.2.4	 	the technology transfer fee, technology license fee, technical service fee,
equipment

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	 	 	 	assignment fee and/or equipment rental, etc., the liquidated damages and other relevant fees,
which Wangxing Company shall pay to the Pledgee under the Technical Services Agreement,
as well as all expenditures (including the lawyer’s fee) and other amounts paid by the
Pledgee for enforcing its rights under the Technical Services Agreement when Wangxing
Company breaches the Technical Services Agreement.

	1.3	 	Pledged Rights: shall mean the Pledgor’s shares in Wangxing Company and all other rights
relevant to such shares. Specifically, the Pledged Rights include but are not limited to the
following rights:

	 	1.3.1	 	all dividends, profit distributions, extra dividends, allocated shares and any
other kind of funds relevant to the Pledged Rights, as well as corresponding rights and
interests, which the Pledgor shall be entitled to receive from Wangxing Company at
present or in the future;
	 
	 	1.3.2	 	the rights enjoyed by the Pledgor in determining Wangxing Company’s operational
guidelines, investment plans and other major matters as well as on electing and changing
directors and supervisors, which are corresponding to the Pledged Rights it holds;
	 
	 	1.3.3	 	all interests warranted, confirmed and promised by other parties under Wangxing
Company’s articles of association and other organizational documents to the Pledgor;
	 
	 	1.3.4	 	the Pledgor’s right of claiming against any party to Wangxing Company’s articles
of association or any other organizational document for compensation due to any breach;
	 
	 	1.3.5	 	the Pledgor’s right of consenting to or opposing the rescission, amendment or
termination of Wangxing Company’s articles of association and other organizational
documents due to the Pledged Rights it holds;
	 
	 	1.3.6	 	Other powers and rights relevant to the Pledged Rights, which the Pledgor is
entitled to according to relevant laws and regulations of China as well as Wangxing
Company’s articles of association and other organizational documents.

	2	 	Pledge of Stock Rights
	 
	2.1	 	The Pledgor warrants that it will, pursuant to the Loan Agreement and the Share Rights
Agreement, pays off relevant debts to the Pledgee, and meanwhile provide guaranty for Wangxing
Company to perform the payment obligation and other relevant obligations under the Trademark
License Agreement and the Technical Services Agreement. Therefore, the Pledgor agrees to
pledge the Pledged Rights to the Pledgee.
	 
	2.2	 	The Pledgor shall, on the date of execution of this Agreement, submit to the Pledgee the
following documents:

	 	2.2.1	 	the investment certificate issued by Wangxing Company to the Pledgor evidencing
that the Pledgor lawfully holds the Pledged Stock Rights;
	 
	 	2.2.2	 	the written documents showing that Wangxing Company’s other shareholders agree
with the Pledgor on establishing the pledge of share rights under this Agreement;
	 
	 	2.2.3	 	all other materials and documents reasonably required by the Pledgee.

	2.3	 	The Pledgor shall deliver the capital contribution certificate to the Pledgee on the date of
effectiveness of this Agreement, and go through the procedures for record of modification of
the share register in Wangxing Company.
	 
	3	 	Scope of Security
	 
	3.1	 	The scope of security of the Pledged Stock Rights under this Agreement shall cover:

	 	3.1.1	 	the Secured Debts as defined in Article 1.2 of this Agreement;
	 
	 	3.1.2	 	the expenditures paid by the Pledgee for enforcing its right of pledge under this
Agreement.

	4	 	Term of Right of Pledge
	 
	4.1	 	The valid duration of the right of pledge which the Pledgee enjoys under this Agreement shall
commence on the effectiveness date of this Agreement until the three-year anniversary of the
date when the last sum of guaranteed debt is due.
	 
	5	 	Exercise of the Right of Pledge
	 
	5.1	 	In the event that the Pledgor fails to pay off its debts under the Loan Agreement or the
Share Rights Agreement to the Pledgee on time, or Wangxing Company fails to perform its
payment

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	 	 	obligation or other relevant obligations to the Pledgee under the Trademark License Agreement or
the Technical Services Agreement, or the Pledgor breaches its responsibilities or obligations
under this Agreement, the Pledgee shall be entitled to, within a scope permitted by the
applicable laws, exercise the right of pledge at any time it considers appropriate within the
duration of the right of pledge and in a method it considers appropriate. Such methods shall
include but not be limited to:

	 	5.1.1	 	negotiating with the Pledgor on paying off the Secured Debts by transferring to
the Pledgee the Pledged Rights;
	 
	 	5.1.2	 	selling off the Pledged Rights, and paying off the Secured Debts with the proceeds
from the sale;
	 
	 	5.1.3	 	retaining a competent institution to auction total or partial Pledged Rights;
and/or
	 
	 	5.1.4	 	disposing of the Pledged Rights by taking other appropriate measures permitted by
the applicable laws.

	5.2	 	In the process when the Pledgee disposes of the Pledged Rights according to the preceding
paragraph, the Pledgee shall be entitled to:

	 	5.2.1	 	substitute the Pledgor to exercise the powers or rights relevant to the Pledged
Rights as Wangxing Company’s shareholder;
	 
	 	5.2.2	 	pay necessary money for exercising any power or right imposed by this Agreement or
the law upon the Pledgee;
	 
	 	5.2.3	 	exercise in a way it considers appropriate or permit other person to exercise any
power or right under the Pledged Rights;
	 
	 	5.2.4	 	recover or claim the money payable to the Pledgor arising from the Pledged Rights
for paying off the Secured Debts;
	 
	 	5.2.5	 	with respect to claim by any person for the rights relevant to the Pledged Rights
in any respect, make settlement, reach reconciliation, resort to arbitration or
litigation proceedings or seek any other measures it considers appropriate;
	 
	 	5.2.6	 	take all other actions permitted by law for the purpose of enforcing any of its
rights under this Agreement.

	5.3	 	At the Pledgee’s request, the Pledgor must assist the Pledgee in obtaining all necessary
approvals or consents relevant to the Pledgee’s enforcement of its credit rights and the right
of pledge.
	 
	5.4	 	Within the duration of the right of pledge, the Pledgee shall be entitled to collect the
legal fruits of the Pledged Rights.
	 
	5.5	 	All the money collected by the Pledgee from the exercise of its right of pledge (including
but not limited to the price obtained from disposing of the Pledged Rights and any proceeds
derived from the Pledged Rights) shall be put into use in the following order on the premise
of not violating other clauses of this Agreement:

	 	5.5.1	 	It shall be at first used to pay all the expenses incurred to the Pledgee due to
exercise of the right of pledge and/or other rights under this Agreement;
	 
	 	5.5.2	 	Then, it shall be used by the Pledgee to pay off the Secured Debts according to
law;
	 
	 	5.5.3	 	If there is still remaining amount after the Secured Debts are paid off, the said
amount shall be paid to the Pledgor or the person who is entitled to receive it, with no
interest being paid.

	6	 	Rescission of the Right of Pledge
	 
	6.1	 	If, at any time within the effective duration of the right of pledge, the secured debts are
fully paid off, and the Pledgor no longer bears any obligation or liability under this
Agreement, the Pledgee’s right of pledge under this Agreement shall be extinct on the date
when all the Secured Debts are paid off. In such a case, at the Pledgor’s request, the Pledgee
shall execute the written documents on the pledge of shares created under this Agreement and
deliver them to the Pledgor, or assist the Pledgor in going through other procedures for
rescinding the pledge of shares under this Agreement.
	 
	6.2	 	Unless otherwise prescribed in the preceding paragraph, the pledge of shares under this
Agreement shall not be rescinded without the Pledgee’s prior written consent.
	 
	7	 	Nature of Security

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	7.1	 	The guaranty under this Agreement shall not be affected by other guaranties held by the
Pledgee regarding the Secured Debts, and shall not affect the effectiveness of those other
securities, either.
	 
	7.2	 	Neither the security nor the Pledgee’s rights under this Agreement shall be rescinded or
affected due to any of the following circumstances:

	 	7.2.1	 	the Pledgee’s offering a grace period to, rescission or mitigation of any person’s
debts at any time;
	 
	 	7.2.2	 	any amendment, modification or supplement to the Loan Agreement, the Share Rights
Agreement, the Trademark License Agreement and/or the Technical Services Agreement;
	 
	 	7.2.3	 	any disposal, modification or rescission of any other guaranty of the relevant
secured debts;
	 
	 	7.2.4	 	reconciliation reached on the claims raised by any person between the Pledgee and
such person;
	 
	 	7.2.5	 	any delay, act, nonfeasance or mistake arising out of the Pledgee’s exercise of
its rights;
	 
	 	7.2.6	 	any circumstance which the Loan Agreement, the Share Rights Agreement, the
Trademark License Agreement and/or the Technical Services Agreement or the performance
thereof are considered ineffective; or
	 
	 	7.2.7	 	any other event which might otherwise affect the Pledgor’s obligations under this
Agreement.

	8	 	Public Notarial Procedures
	 
	8.1	 	After the effectiveness of this Agreement, the Pledgor shall, at the Pledgee’s request,
cooperate with the Pledgee in going together to lawful public notary office to go through the
notarial procedures as required by this Agreement, and shall provide all necessary cooperation
as per the public notary office’s requirements.
	 
	8.2	 	All expenses incurred from the above mentioned notarial procedures shall be solely borne by
the Pledgee.
	 
	9	 	Special Provisions
	 
	9.1	 	Without the Pledgee’s prior written consent, the Pledgor shall not assign any right it may
enjoy under this Agreement or any obligation it shall bear hereunder to any other party.
	 
	9.2	 	The Pledgee shall be entitled to assign any of its rights or obligations under this Agreement
to any third party at any time without being consented by the Pledgor. In such a case, the
Pledgor shall unconditionally cooperate with the Pledgee in going through relevant procedures
for assignment of the rights and obligations, including but not limited to execution of
relevant agreement on change of contractual parties.
	 
	9.3	 	After the procedures for pledge of the shares under this Agreement are completed, unless the
Pledgee makes a reverse decision and informs the Pledgor, the Pledgor shall be obligated to
continue abiding by the legal provisions concerning the Pledged Rights, performing all rights
and obligations relevant to the Pledged Rights (including but not limited to exercising all
its powers and rights relevant to the Pledged Rights under Wangxing Company’s articles of
association), and fulfilling the prudence and credibility obligations which a shareholder
shall fulfill.
	 
	9.4	 	The Pledgee shall bear no obligation or legal liability for the Pledged Rights, nor does it
have to perform any obligation that the Pledgor shall bear for the Pledged Rights. Without
prejudice to the Pledgee’s rights under this Agreement, the Pledgee shall bear no obligation
or legal liability to others for the Pledged Rights under this Agreement.
	 
	9.5	 	The Pledgor must timely notify the Pledgee of any event that might affect the Pledged Stock
Rights or the value of the Pledged Stock Rights or might impede the Pledgor from performing
its rights as Wangxing Company’s shareholder or harm or delay its performing such rights.
	 
	9.6	 	Without the Pledgee’s prior consent, the Pledgor may not conduct any of the following acts:

	 	9.6.1	 	Amending or modifying in any other way Wangxing Company’s articles of association;
	 
	 	9.6.2	 	Establishing any further guaranty on the Pledged Rights beside the pledge created

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	 	 	 	under this Agreement;

	 	9.6.3	 	Disposing of any interest of the Pledged Rights in any way;
	 
	 	9.6.4	 	Conducting any act that might harm the Pledgee’s Pledged Rights or any of its
rights under this Agreement.

	9.7	 	Without the Pledgee’s written consent, the Pledgor shall not have the Pledged Rights
transferred or re-pledged, or dispose of the Pledged Rights in any other way which may harm
the right of pledge enjoyed by the Pledgee under this Agreement.
	 
	10	 	Representations, Commitments and Warranties
	 
	10.1	 	The pledgor hereby makes representations, commitments and warranties to the Pledgee as
follows:

	 	10.1.1	 	The Pledgor has lawful eligibility and necessary power to conclude this Agreement and
is able to entirely perform any of its obligations under this Agreement;
	 
	 	10.1.2	 	The Pledgor has lawfully performed its obligation of contributing investments to
Wangxing Company; is the only holder of the Pledged Rights; and has lawful, complete and
full ownership over all the Pledged Rights under this Agreement;
	 
	 	10.1.3	 	Wangxing Company’s shareholders’ meeting has adopted a resolution on consenting to the
pledge of shares pursuant to this Agreement;
	 
	 	10.1.4	 	Except the pledge established in this Agreement, the Pledgor has not established or
permitted others to establish any security right on the Pledged Rights without the
Pledgee’s prior written consent; the Pledged Rights are involved in no ownership dispute,
are not distained or limited in other legal proceedings, but may be pledged and
transferred according to the applicable laws;
	 
	 	10.1.5	 	There is neither existing or pending litigation, arbitration or administrative
proceedings against the Pledged Rights and/or the Pledgor nor any such threat;
	 
	 	10.1.6	 	The Pledgor’s execution of this Agreement, exercise of the rights under this Agreement,
or performance of the obligations under this Agreement will not violate any document or
legal provision applicable to the Pledgor or its properties;
	 
	 	10.1.7	 	The pledge created under this Agreement constitutes an effective security of the
secured debts, may be implemented according to its clauses, and shall not be restricted
by any other’s rights, interests or claims at a preferential or equal status;
	 
	 	10.1.8	 	All documents delivered by the Pledgor to the Pledgee and relevant to this Agreement
are authentic, complete and accurate in all substantive aspects, and there is no omission
that might cause any information in such documents to be in any way incorrect or
misleading;
	 
	 	10.1.9	 	This Agreement constitutes lawful, effective and binding obligations to the Pledgor,
and may be subject to compulsory enforcement according to its clauses upon application.

	10.2	 	The Pledgee hereby makes representations, commitments and warranties to the Pledgor:

	 	10.2.1	 	The Pledgee is a lawfully established and validly existing limited liability company,
has the right to conclude this Agreement and is able to perform its obligations under
this Agreement.
	 
	 	10.2.2	 	The Pledgee has obtained all authorizations and consents for executing and performing
this Agreement.

	11	 	Breach Liability
	 
	11.1	 	If Party A or Party B (each, a “Party”) directly or indirectly violates any provision
hereunder or fails to perform or fails to timely and fully perform any of its obligations
hereunder and thus constitutes a breach of this Agreement, the non-defaulting Party (the
“Non-Defaulting Party”) shall have the right to send a written notification requiring the
defaulting Party (the “Defaulting Party”) to make corrections, take adequate, effective and
timely measures to eliminate the effect thus caused, and indemnify the Non-Defaulting Party
any losses suffered from the Defaulting Party’s breach of contract.
	 
	11.2	 	Upon occurrence of any breach of contract, if the Non-Defaulting Party, based on reasonable
and objective judgment, believes that such breach of contract has caused it impossible or

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	 	 	unfair for the Non-Defaulting Party to perform its corresponding obligations hereunder, then the
Non-Defaulting Party may notify the Defaulting Party in writing that it will suspend its
performance of its corresponding obligations hereunder, until the Defaulting Party has stopped
its breach of contract, taken adequate, effective and timely measures to eliminate the effect
thus caused, and indemnified the Non-Defaulting Party any losses suffered from the Defaulting
Party’s breach of contract.

	11.3	 	The Non-Defaulting Party’s losses to be indemnified by the Defaulting Party due to its breach
of contract shall include the direct economic losses suffered by the Non-Defaulting Party due
to the breach of contract and any expectable indirect losses and additional fees and costs,
including but not limited to the lawyer’s fee, legal cost, arbitration cost, financial cost
and travel cost, etc.
	 
	12	 	Force Majeure
	 
	12.1	 	A Force Majeure Event refers to any event uncontrollable, unpredictable, or unavoidable even
predicted by the Parties hereunder, which interferes, affects or delays any Party’s
performance of the whole or part of its obligations hereunder. Such events shall include,
without limitation, the government’s act, acts of God, war, hacker’s attack or any other
similar event.
	 
	12.2	 	Any Party suffering from a Force Majeure Event may suspend its performance of its relevant
obligations hereunder thus prevented, without having to undertake any liability for breach of
contract, until the effect of such Force Majeure Event is eliminated. However, such affected
Party shall try its best to overcome such Force Majeure Event and reduce its adverse effect.
	 
	12.3	 	The Party affected by a Force Majeure Event shall provide the other Party with a legal
certificate issued by the local notary public (or any other competent organ) for certifying
such Force Majeure Event; otherwise, the other Party may request it to undertake breach
liability according to this Agreement.
	 
	13	 	Effectiveness, Amendment and Termination
	 
	13.1	 	This Agreement shall become effective upon the satisfaction of the following conditions:

	 	13.1.1	 	The pledgor and the Pledgee have formally executed this Agreement;
	 
	 	13.1.2	 	The pledge of the shares under this Agreement has been recorded in Wangxing Company’s
register of shareholders.

	13.2	 	Both parties may, after negotiations, amend this Agreement in the form of a written agreement
at any time.
	 
	13.3	 	This Agreement shall be terminated when any of the following circumstances arises:

	 	13.3.1	 	The duration of the right of pledge has elapsed;
	 
	 	13.3.2	 	Both parties rescind the pledge of the shares under this Agreement according to the
clause of “Rescission of the Right of Pledge” in this Agreement;
	 
	 	13.3.3	 	The Pledgee and the Pledgor agree after negotiations to terminate this Agreement;
	 
	 	13.3.4	 	The Pledgee unilaterally consents on terminating this Agreement in advance.

	13.4	 	The early termination of this Agreement shall not affect either party’s rights or obligations
accrued under this Agreement prior to the date when this Agreement was early terminated.
	 
	14	 	Dispute Settlement
	 
	14.1	 	Any dispute arising out of interpretation or performance hereof shall be settled through
friendly negotiation between the Parties.
	 
	14.2	 	If such negotiation fails, both Parties shall submit such dispute to China International
Economic and Trade Arbitration Commission for arbitration according its current arbitration
rules. The place of arbitration shall be Beijing, and the language of arbitration shall be
Chinese. The arbitration award shall be final and binding on both Parties.
	 
	14.3	 	The formation, effectiveness, performance and interpretation hereof as well as dispute
settlement shall be governed by the laws of the People’s Republic of China.
	 
	15	 	Miscellaneous

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	15.1	 	This Agreement is executed in triplicate, with each Party holding one, one copy for notary,
all of which shall be of the same legal effect.
	 
	15.2	 	The headings used in this Agreement are for convenience only, and shall not affect the
interpretation of any provision hereof.
	 
	15.3	 	Both Parties may modify and supplement this Agreement through written agreements. Such
written agreement of modification or supplementation executed by both Parties shall constitute
a part of, and be of the same legal effect as, this Agreement.
	 
	15.4	 	If any provision hereunder is held invalid or unenforceable in whole or in part due to
violating laws or regulations or any other reason, the affected part of such provision shall
be deemed deleted from the Agreement. The deletion of such affected part shall not affect the
validity and enforceability of the other parts of such provision or that of other provisions
hereof. Both Parties shall negotiate and enter into new provisions so as to replace such
invalid or unenforceable provision.
	 
	15.5	 	Unless otherwise provided, any Party’s failure or delay in exercising any right, power or
privilege shall not be deemed as a waiver of such right, power or privilege. Any single or
partial exercise of any right, power or privilege shall not preclude exercise of any other
right, power or privilege.
	 
	15.6	 	This Agreement constitutes the entire agreement between the Parties with respect to the
subject matter hereof and supersede any and all previous or simultaneous oral and written
agreements, understandings and communication between the Parties relating to such subject
matter. Unless otherwise expressly provided herein, there shall not be any other express or
implied obligations or undertakings between the Parties.
	 
	15.7	 	This Agreement shall be binding upon both parties and their respective successors and
qualified assignees.
	 
	15.8	 	Any other matters not contemplated hereunder shall be subject to further negotiation between
the Parties.

	 	 	 	 	 	 	 	 	 
	Shareholder	 	 	 	SINA.com Technology
(China) Co., Ltd.	 	 
	 
	 	 	 	 	 	 	 	 
	Handwritten Signature:

	 	/s/
	 	Authorized Representative:
	 	/s/
	 	 
	 

	 	 
	 	 	 	 	 	 

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Share Pledge Agreement

This Share Pledge Agreement is entered into in Haidian District, Beijing between the following
parties on 18 (Day) 08 (Month) 2007 (Year):

Party A: SL Zhang (hereinafter referred to as the “Pledgor”)

ID No.:

Party B: SINA.com Technology (China) Co., Ltd. (hereinafter referred to as the “Pledgee”)

Address: Room 1506, Ideal Plaza, 58 Bei Si Huan Xi Road, Haidian District, Beijing

Whereas:

	(1)	 	The Pledgor is a shareholder of Shenzhen Wangxing Technology Co., Ltd. (hereinafter referred
to as “Wangxing”), and owns 30% of Wangxing’s shares;
	 
	(2)	 	All of the Pledgor’s investments in Wangxing were sourced from the loan(s) provided by the
Pledgee to the Pledgor in accordance with an agreement between the Pledgor and the Pledgee
regarding the aforesaid loan(s) (hereinafter referred to as the “Loan Agreement”), the Pledgor
bears RMB 3,000,000 Yuan of debt to the Pledgee;
	 
	(3)	 	The Pledgor and the Pledgee entered into an Agreement on Authorization to Exercise
Shareholder’s Voting Power (the “Share Rights Agreement”) on 18 (Day) 08 (Month) 2007 (Year), and according to the Share Rights Agreement, in the case that
the Pledgor breaches the Share Rights Agreement, the Pledgor shall pay liquidated damages;
	 
	(4)	 	Wangxing Company and the Pledgee entered into a “Trademark License Agreement” on 18
(Day) 08 (Month) 2007 (Year), and according to the Trademark License
Agreement, Wangxing Company shall pay corresponding royalties for trademark licensed by the
Pledgee to Wangxing Company;
	 
	(5)	 	Wangxing Company and the Pledgee entered into a “Technical Services Agreement” on 18 (Day) 08 (Month) 2007 (Year), and according to the Technical Service
Agreement, Wangxing Company shall, as the case may be, pay corresponding technology transfer
fee, technology license fee, technical service fee, equipment assignment fee and/or equipment
rental, etc. to the Pledgee;
	 
	(6)	 	The Pledgor agrees to pledge all of its shares in Wangxing Company and all other rights
relevant to the said share rights to the Pledgee as a collateral security for the Pledgor to
pay off all debts to the Pledgee and for Wangxing Company to perform its payment obligation
pursuant to the Trademark License Agreement and the Technical Services Agreement and other
relevant obligations; the Pledgee agrees to accept such security.

Therefore, both parties agree as follows after equal and friendly negotiations:

	1	 	Interpretation and Definitions
	 
	1.1	 	In this Agreement, unless otherwise specified in the context, the following terms shall be
interpreted according to their respective meanings defined in the following clauses.
	 
	1.2	 	Secured Debts: shall mean the following debts:

	 	1.2.1	 	all the principal, interest, overdue interest, liquidated damages, indemnities
which the Pledgor shall pay to the Pledgee under the Loan Agreement, as well as all
expenditures (including the lawyer’s fee) and other amounts paid by the Pledgee for
enforcing its rights under the Loan Agreement when the Pledgor breaches the Agreement;
	 
	 	1.2.2	 	all liquidated damages which the Pledgor shall pay to the Pledgee under the Share
Rights Agreement, the interest of the liquidated damages, the overdue interest, as well
as all expenditures (including the lawyer’s fee) and other amounts paid by the Pledgee
for enforcing its rights under the Share Rights Agreement when the Pledgor breaches the
Share Rights Agreement;
	 
	 	1.2.3	 	all royalties for trademark license, the liquidated damages and other relevant
fees which Wangxing Company shall pay to the Pledgee under the Trademark License
Agreement, as well as all expenditures (including the lawyer’s fee) and other amounts
paid by the Pledgee for enforcing its rights under the Trademark License Agreement when
Wangxing Company breaches the Agreement;
	 
	 	1.2.4	 	the technology transfer fee, technology license fee, technical service fee,
equipment

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	 	 	 	assignment fee and/or equipment rental, etc., the liquidated damages and other
relevant fees, which Wangxing Company shall pay to the Pledgee under the Technical
Services Agreement, as well as all expenditures (including the lawyer’s fee) and other
amounts paid by the Pledgee for enforcing its rights under the Technical Services
Agreement when Wangxing Company breaches the Technical Services Agreement.

	1.3	 	Pledged Rights: shall mean the Pledgor’s shares in Wangxing Company and all other rights
relevant to such shares. Specifically, the Pledged Rights include but are not limited to the
following rights:

	 	1.3.1	 	all dividends, profit distributions, extra dividends, allocated shares and any
other kind of funds relevant to the Pledged Rights, as well as corresponding rights and
interests, which the Pledgor shall be entitled to receive from Wangxing Company at
present or in the future;
	 
	 	1.3.2	 	the rights enjoyed by the Pledgor in determining Wangxing Company’s operational
guidelines, investment plans and other major matters as well as on electing and changing
directors and supervisors, which are corresponding to the Pledged Rights it holds;
	 
	 	1.3.3	 	all interests warranted, confirmed and promised by other parties under Wangxing
Company’s articles of association and other organizational documents to the Pledgor;
	 
	 	1.3.4	 	the Pledgor’s right of claiming against any party to Wangxing Company’s articles
of association or any other organizational document for compensation due to any breach;
	 
	 	1.3.5	 	the Pledgor’s right of consenting to or opposing the rescission, amendment or
termination of Wangxing Company’s articles of association and other organizational
documents due to the Pledged Rights it holds;
	 
	 	1.3.6	 	Other powers and rights relevant to the Pledged Rights, which the Pledgor is
entitled to according to relevant laws and regulations of China as well as Wangxing
Company’s articles of association and other organizational documents.

	2	 	Pledge of Stock Rights
	 
	2.1	 	The Pledgor warrants that it will, pursuant to the Loan Agreement and the Share Rights
Agreement, pays off relevant debts to the Pledgee, and meanwhile provide guaranty for Wangxing
Company to perform the payment obligation and other relevant obligations under the Trademark
License Agreement and the Technical Services Agreement. Therefore, the Pledgor agrees to
pledge the Pledged Rights to the Pledgee.
	 
	2.2	 	The Pledgor shall, on the date of execution of this Agreement, submit to the Pledgee the
following documents:

	 	2.2.1	 	the investment certificate issued by Wangxing Company to the Pledgor evidencing
that the Pledgor lawfully holds the Pledged Stock Rights;
	 
	 	2.2.2	 	the written documents showing that Wangxing Company’s other shareholders agree
with the Pledgor on establishing the pledge of share rights under this Agreement;
	 
	 	2.2.3	 	all other materials and documents reasonably required by the Pledgee.

	2.3	 	The Pledgor shall deliver the capital contribution certificate to the Pledgee on the date of
effectiveness of this Agreement, and go through the procedures for record of modification of
the share register in Wangxing Company.
	 
	3	 	Scope of Security
	 
	3.1	 	The scope of security of the Pledged Stock Rights under this Agreement shall cover:

	 	3.1.1	 	the Secured Debts as defined in Article 1.2 of this Agreement;
	 
	 	3.1.2	 	the expenditures paid by the Pledgee for enforcing its right of pledge under this
Agreement.

	4	 	Term of Right of Pledge
	 
	4.1	 	The valid duration of the right of pledge which the Pledgee enjoys under this Agreement shall
commence on the effectiveness date of this Agreement until the three-year anniversary of the
date when the last sum of guaranteed debt is due.
	 
	5	 	Exercise of the Right of Pledge
	 
	5.1	 	In the event that the Pledgor fails to pay off its debts under the Loan Agreement or the
Share Rights Agreement to the Pledgee on time, or Wangxing Company fails to perform its
payment

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	 	 	obligation or other relevant obligations to the Pledgee under the Trademark License Agreement
or the Technical Services Agreement, or the Pledgor breaches its responsibilities or
obligations under this Agreement, the Pledgee shall be entitled to, within a scope permitted
by the applicable laws, exercise the right of pledge at any time it considers appropriate
within the duration of the right of pledge and in a method it considers appropriate. Such
methods shall include but not be limited to:

	 	5.1.1	 	negotiating with the Pledgor on paying off the Secured Debts by transferring to
the Pledgee the Pledged Rights;
	 
	 	5.1.2	 	selling off the Pledged Rights, and paying off the Secured Debts with the proceeds
from the sale;
	 
	 	5.1.3	 	retaining a competent institution to auction total or partial Pledged Rights;
and/or
	 
	 	5.1.4	 	disposing of the Pledged Rights by taking other appropriate measures permitted by
the applicable laws.

	5.2	 	In the process when the Pledgee disposes of the Pledged Rights according to the preceding
paragraph, the Pledgee shall be entitled to:

	 	5.2.1	 	substitute the Pledgor to exercise the powers or rights relevant to the Pledged
Rights as Wangxing Company’s shareholder;
	 
	 	5.2.2	 	pay necessary money for exercising any power or right imposed by this Agreement or
the law upon the Pledgee;
	 
	 	5.2.3	 	exercise in a way it considers appropriate or permit other person to exercise any
power or right under the Pledged Rights;
	 
	 	5.2.4	 	recover or claim the money payable to the Pledgor arising from the Pledged Rights
for paying off the Secured Debts;
	 
	 	5.2.5	 	with respect to claim by any person for the rights relevant to the Pledged Rights
in any respect, make settlement, reach reconciliation, resort to arbitration or
litigation proceedings or seek any other measures it considers appropriate;
	 
	 	5.2.6	 	take all other actions permitted by law for the purpose of enforcing any of its
rights under this Agreement.

	5.3	 	At the Pledgee’s request, the Pledgor must assist the Pledgee in obtaining all necessary
approvals or consents relevant to the Pledgee’s enforcement of its credit rights and the right
of pledge.
	 
	5.4	 	Within the duration of the right of pledge, the Pledgee shall be entitled to collect the
legal fruits of the Pledged Rights.
	 
	5.5	 	All the money collected by the Pledgee from the exercise of its right of pledge (including
but not limited to the price obtained from disposing of the Pledged Rights and any proceeds
derived from the Pledged Rights) shall be put into use in the following order on the premise
of not violating other clauses of this Agreement:

	 	5.5.1	 	It shall be at first used to pay all the expenses incurred to the Pledgee due to
exercise of the right of pledge and/or other rights under this Agreement;
	 
	 	5.5.2	 	Then, it shall be used by the Pledgee to pay off the Secured Debts according to
law;
	 
	 	5.5.3	 	If there is still remaining amount after the Secured Debts are paid off, the said
amount shall be paid to the Pledgor or the person who is entitled to receive it, with no
interest being paid.

	6	 	Rescission of the Right of Pledge
	 
	6.1	 	If, at any time within the effective duration of the right of pledge, the secured debts are
fully paid off, and the Pledgor no longer bears any obligation or liability under this
Agreement, the Pledgee’s right of pledge under this Agreement shall be extinct on the date
when all the Secured Debts are paid off. In such a case, at the Pledgor’s request, the Pledgee
shall execute the written documents on the pledge of shares created under this Agreement and
deliver them to the Pledgor, or assist the Pledgor in going through other procedures for
rescinding the pledge of shares under this Agreement.
	 
	6.2	 	Unless otherwise prescribed in the preceding paragraph, the pledge of shares under this
Agreement shall not be rescinded without the Pledgee’s prior written consent.
	 
	7	 	Nature of Security

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	7.1	 	The guaranty under this Agreement shall not be affected by other guaranties held by the
Pledgee regarding the Secured Debts, and shall not affect the effectiveness of those other
securities, either.
	 
	7.2	 	Neither the security nor the Pledgee’s rights under this Agreement shall be rescinded or
affected due to any of the following circumstances:

	 	7.2.1	 	the Pledgee’s offering a grace period to, rescission or mitigation of any person’s
debts at any time;
	 
	 	7.2.2	 	any amendment, modification or supplement to the Loan Agreement, the Share Rights
Agreement, the Trademark License Agreement and/or the Technical Services Agreement;
	 
	 	7.2.3	 	any disposal, modification or rescission of any other guaranty of the relevant
secured debts;
	 
	 	7.2.4	 	reconciliation reached on the claims raised by any person between the Pledgee and
such person;
	 
	 	7.2.5	 	any delay, act, nonfeasance or mistake arising out of the Pledgee’s exercise of
its rights;
	 
	 	7.2.6	 	any circumstance which the Loan Agreement, the Share Rights Agreement, the
Trademark License Agreement and/or the Technical Services Agreement or the performance
thereof are considered ineffective; or
	 
	 	7.2.7	 	any other event which might otherwise affect the Pledgor’s obligations under this
Agreement.

	8	 	Public Notarial Procedures
	 
	8.1	 	After the effectiveness of this Agreement, the Pledgor shall, at the Pledgee’s request,
cooperate with the Pledgee in going together to lawful public notary office to go through the
notarial procedures as required by this Agreement, and shall provide all necessary cooperation
as per the public notary office’s requirements.
	 
	8.2	 	All expenses incurred from the above mentioned notarial procedures shall be solely borne by
the Pledgee.
	 
	9	 	Special Provisions
	 
	9.1	 	Without the Pledgee’s prior written consent, the Pledgor shall not assign any right it may
enjoy under this Agreement or any obligation it shall bear hereunder to any other party.
	 
	9.2	 	The Pledgee shall be entitled to assign any of its rights or obligations under this Agreement
to any third party at any time without being consented by the Pledgor. In such a case, the
Pledgor shall unconditionally cooperate with the Pledgee in going through relevant procedures
for assignment of the rights and obligations, including but not limited to execution of
relevant agreement on change of contractual parties.
	 
	9.3	 	After the procedures for pledge of the shares under this Agreement are completed, unless the
Pledgee makes a reverse decision and informs the Pledgor, the Pledgor shall be obligated to
continue abiding by the legal provisions concerning the Pledged Rights, performing all rights
and obligations relevant to the Pledged Rights (including but not limited to exercising all
its powers and rights relevant to the Pledged Rights under Wangxing Company’s articles of
association), and fulfilling the prudence and credibility obligations which a shareholder
shall fulfill.
	 
	9.4	 	The Pledgee shall bear no obligation or legal liability for the Pledged Rights, nor does it
have to perform any obligation that the Pledgor shall bear for the Pledged Rights. Without
prejudice to the Pledgee’s rights under this Agreement, the Pledgee shall bear no obligation
or legal liability to others for the Pledged Rights under this Agreement.
	 
	9.5	 	The Pledgor must timely notify the Pledgee of any event that might affect the Pledged Stock
Rights or the value of the Pledged Stock Rights or might impede the Pledgor from performing
its rights as Wangxing Company’s shareholder or harm or delay its performing such rights.
	 
	9.6	 	Without the Pledgee’s prior consent, the Pledgor may not conduct any of the following acts:

	 	9.6.1	 	Amending or modifying in any other way Wangxing Company’s articles of association;
	 
	 	9.6.2	 	Establishing any further guaranty on the Pledged Rights beside the pledge created

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	 	 	 	under this Agreement;

	 	9.6.3	 	Disposing of any interest of the Pledged Rights in any way;
	 
	 	9.6.4	 	Conducting any act that might harm the Pledgee’s Pledged Rights or any of its
rights under this Agreement.

	9.7	 	Without the Pledgee’s written consent, the Pledgor shall not have the Pledged Rights
transferred or re-pledged, or dispose of the Pledged Rights in any other way which may harm
the right of pledge enjoyed by the Pledgee under this Agreement.
	 
	10	 	Representations, Commitments and Warranties
	 
	10.1	 	The pledgor hereby makes representations, commitments and warranties to the Pledgee as
follows:

	 	10.1.1	 	The Pledgor has lawful eligibility and necessary power to conclude this Agreement and
is able to entirely perform any of its obligations under this Agreement;
	 
	 	10.1.2	 	The Pledgor has lawfully performed its obligation of contributing investments to
Wangxing Company; is the only holder of the Pledged Rights; and has lawful, complete and
full ownership over all the Pledged Rights under this Agreement;
	 
	 	10.1.3	 	Wangxing Company’s shareholders’ meeting has adopted a resolution on consenting to the
pledge of shares pursuant to this Agreement;
	 
	 	10.1.4	 	Except the pledge established in this Agreement, the Pledgor has not established or
permitted others to establish any security right on the Pledged Rights without the
Pledgee’s prior written consent; the Pledged Rights are involved in no ownership dispute,
are not distained or limited in other legal proceedings, but may be pledged and
transferred according to the applicable laws;
	 
	 	10.1.5	 	There is neither existing or pending litigation, arbitration or administrative
proceedings against the Pledged Rights and/or the Pledgor nor any such threat;
	 
	 	10.1.6	 	The Pledgor’s execution of this Agreement, exercise of the rights under this Agreement,
or performance of the obligations under this Agreement will not violate any document or
legal provision applicable to the Pledgor or its properties;
	 
	 	10.1.7	 	The pledge created under this Agreement constitutes an effective security of the
secured debts, may be implemented according to its clauses, and shall not be restricted
by any other’s rights, interests or claims at a preferential or equal status;
	 
	 	10.1.8	 	All documents delivered by the Pledgor to the Pledgee and relevant to this Agreement
are authentic, complete and accurate in all substantive aspects, and there is no omission
that might cause any information in such documents to be in any way incorrect or
misleading;
	 
	 	10.1.9	 	This Agreement constitutes lawful, effective and binding obligations to the Pledgor,
and may be subject to compulsory enforcement according to its clauses upon application.

	10.2	 	The Pledgee hereby makes representations, commitments and warranties to the Pledgor:

	 	10.2.1	 	The Pledgee is a lawfully established and validly existing limited liability company,
has the right to conclude this Agreement and is able to perform its obligations under
this Agreement.
	 
	 	10.2.2	 	The Pledgee has obtained all authorizations and consents for executing and performing
this Agreement.

	11	 	Breach Liability
	 
	11.1	 	If Party A or Party B (each, a “Party”) directly or indirectly violates any provision
hereunder or fails to perform or fails to timely and fully perform any of its obligations
hereunder and thus constitutes a breach of this Agreement, the non-defaulting Party (the
“Non-Defaulting Party”) shall have the right to send a written notification requiring the
defaulting Party (the “Defaulting Party”) to make corrections, take adequate, effective and
timely measures to eliminate the effect thus caused, and indemnify the Non-Defaulting Party
any losses suffered from the Defaulting Party’s breach of contract.
	 
	11.2	 	Upon occurrence of any breach of contract, if the Non-Defaulting Party, based on reasonable
and objective judgment, believes that such breach of contract has caused it impossible or

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	 	 	unfair for the Non-Defaulting Party to perform its corresponding obligations hereunder, then
the Non-Defaulting Party may notify the Defaulting Party in writing that it will suspend its
performance of its corresponding obligations hereunder, until the Defaulting Party has stopped
its breach of contract, taken adequate, effective and timely measures to eliminate the effect
thus caused, and indemnified the Non-Defaulting Party any losses suffered from the Defaulting
Party’s breach of contract.

	11.3	 	The Non-Defaulting Party’s losses to be indemnified by the Defaulting Party due to its breach
of contract shall include the direct economic losses suffered by the Non-Defaulting Party due
to the breach of contract and any expectable indirect losses and additional fees and costs,
including but not limited to the lawyer’s fee, legal cost, arbitration cost, financial cost
and travel cost, etc.
	 
	12	 	Force Majeure
	 
	12.1	 	A Force Majeure Event refers to any event uncontrollable, unpredictable, or unavoidable even
predicted by the Parties hereunder, which interferes, affects or delays any Party’s
performance of the whole or part of its obligations hereunder. Such events shall include,
without limitation, the government’s act, acts of God, war, hacker’s attack or any other
similar event.
	 
	12.2	 	Any Party suffering from a Force Majeure Event may suspend its performance of its relevant
obligations hereunder thus prevented, without having to undertake any liability for breach of
contract, until the effect of such Force Majeure Event is eliminated. However, such affected
Party shall try its best to overcome such Force Majeure Event and reduce its adverse effect.
	 
	12.3	 	The Party affected by a Force Majeure Event shall provide the other Party with a legal
certificate issued by the local notary public (or any other competent organ) for certifying
such Force Majeure Event; otherwise, the other Party may request it to undertake breach
liability according to this Agreement.
	 
	13	 	Effectiveness, Amendment and Termination
	 
	13.1	 	This Agreement shall become effective upon the satisfaction of the following conditions:

	 	13.1.1	 	The pledgor and the Pledgee have formally executed this Agreement;
	 
	 	13.1.2	 	The pledge of the shares under this Agreement has been recorded in Wangxing Company’s
register of shareholders.

	13.2	 	Both parties may, after negotiations, amend this Agreement in the form of a written agreement
at any time.
	 
	13.3	 	This Agreement shall be terminated when any of the following circumstances arises:

	 	13.3.1	 	The duration of the right of pledge has elapsed;
	 
	 	13.3.2	 	Both parties rescind the pledge of the shares under this Agreement according to the
clause of “Rescission of the Right of Pledge” in this Agreement;
	 
	 	13.3.3	 	The Pledgee and the Pledgor agree after negotiations to terminate this Agreement;
	 
	 	13.3.4	 	The Pledgee unilaterally consents on terminating this Agreement in advance.

	13.4	 	The early termination of this Agreement shall not affect either party’s rights or obligations
accrued under this Agreement prior to the date when this Agreement was early terminated.
	 
	14	 	Dispute Settlement
	 
	14.1	 	Any dispute arising out of interpretation or performance hereof shall be settled through
friendly negotiation between the Parties.
	 
	14.2	 	If such negotiation fails, both Parties shall submit such dispute to China International
Economic and Trade Arbitration Commission for arbitration according its current arbitration
rules. The place of arbitration shall be Beijing, and the language of arbitration shall be
Chinese. The arbitration award shall be final and binding on both Parties.
	 
	14.3	 	The formation, effectiveness, performance and interpretation hereof as well as dispute
settlement shall be governed by the laws of the People’s Republic of China.
	 
	15	 	Miscellaneous

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	15.1	 	This Agreement is executed in triplicate, with each Party holding one, one copy for notary,
all of which shall be of the same legal effect.
	 
	15.2	 	The headings used in this Agreement are for convenience only, and shall not affect the
interpretation of any provision hereof.
	 
	15.3	 	Both Parties may modify and supplement this Agreement through written agreements. Such
written agreement of modification or supplementation executed by both Parties shall constitute
a part of, and be of the same legal effect as, this Agreement.
	 
	15.4	 	If any provision hereunder is held invalid or unenforceable in whole or in part due to
violating laws or regulations or any other reason, the affected part of such provision shall
be deemed deleted from the Agreement. The deletion of such affected part shall not affect the
validity and enforceability of the other parts of such provision or that of other provisions
hereof. Both Parties shall negotiate and enter into new provisions so as to replace such
invalid or unenforceable provision.
	 
	15.5	 	Unless otherwise provided, any Party’s failure or delay in exercising any right, power or
privilege shall not be deemed as a waiver of such right, power or privilege. Any single or
partial exercise of any right, power or privilege shall not preclude exercise of any other
right, power or privilege.
	 
	15.6	 	This Agreement constitutes the entire agreement between the Parties with respect to the
subject matter hereof and supersede any and all previous or simultaneous oral and written
agreements, understandings and communication between the Parties relating to such subject
matter. Unless otherwise expressly provided herein, there shall not be any other express or
implied obligations or undertakings between the Parties.
	 
	15.7	 	This Agreement shall be binding upon both parties and their respective successors and
qualified assignees.
	 
	15.8	 	Any other matters not contemplated hereunder shall be subject to further negotiation between
the Parties.

	 	 	 	 	 	 	 	 	 	 	 
	Shareholder	 	 	 	 	 	SINA.com Technology (China) Co., Ltd.	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	Handwritten Signature:

	 	/s/
	 	 	 	Authorized Representative:
	 	/s/	 	 
	 

	 	 

	 	 
	 	 	 	 

	 	 

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Share Pledge Agreement

This Share Pledge Agreement is entered into in Haidian District, Beijing between the following
parties on 18 (Day) 08 (Month) 2007 (Year):

Party A: W Li (hereinafter referred to as the “Pledgor”)

ID No.:

Party B: SINA.com Technology (China) Co., Ltd. (hereinafter referred to as the “Pledgee”)

Address: Room 1506, Ideal Plaza, 58 Bei Si Huan Xi Road, Haidian District, Beijing

Whereas:

	(1)	 	The Pledgor is a shareholder of Shenzhen Wangxing Technology Co., Ltd. (hereinafter referred
to as “Wangxing”), and owns 30% of Wangxing’s shares;
	 
	(2)	 	All of the Pledgor’s investments in Wangxing were sourced from the loan(s) provided by the
Pledgee to the Pledgor in accordance with an agreement between the Pledgor and the Pledgee
regarding the aforesaid loan(s) (hereinafter referred to as the “Loan Agreement”), the Pledgor
bears RMB 3,000,000 Yuan of debt to the Pledgee;
	 
	(3)	 	The Pledgor and the Pledgee entered into an Agreement on Authorization to Exercise
Shareholder’s Voting Power (the “Share Rights Agreement”) on 18 (Day) 08
(Month) 2007 (Year), and according to the Share Rights Agreement, in the case that
the Pledgor breaches the Share Rights Agreement, the Pledgor shall pay liquidated damages;
	 
	(4)	 	Wangxing Company and the Pledgee entered into a “Trademark License Agreement” on 18
(Day) 08 (Month) 2007 (Year), and according to the Trademark License
Agreement, Wangxing Company shall pay corresponding royalties for trademark licensed by the
Pledgee to Wangxing Company;
	 
	(5)	 	Wangxing Company and the Pledgee entered into a “Technical Services Agreement” on  18
 (Day) 08  (Month)  2007  (Year), and according to the Technical Service
Agreement, Wangxing Company shall, as the case may be, pay corresponding technology transfer
fee, technology license fee, technical service fee, equipment assignment fee and/or equipment
rental, etc. to the Pledgee;
	 
	(6)	 	The Pledgor agrees to pledge all of its shares in Wangxing Company and all other rights
relevant to the said share rights to the Pledgee as a collateral security for the Pledgor to
pay off all debts to the Pledgee and for Wangxing Company to perform its payment obligation
pursuant to the Trademark License Agreement and the Technical Services Agreement and other
relevant obligations; the Pledgee agrees to accept such security.

Therefore, both parties agree as follows after equal and friendly negotiations:

	1	 	Interpretation and Definitions
	 
	1.1	 	In this Agreement, unless otherwise specified in the context, the following terms shall be
interpreted according to their respective meanings defined in the following clauses.
	 
	1.2	 	Secured Debts: shall mean the following debts:

	 	1.2.1	 	all the principal, interest, overdue interest, liquidated damages, indemnities
which the Pledgor shall pay to the Pledgee under the Loan Agreement, as well as all
expenditures (including the lawyer’s fee) and other amounts paid by the Pledgee for
enforcing its rights under the Loan Agreement when the Pledgor breaches the Agreement;
	 
	 	1.2.2	 	all liquidated damages which the Pledgor shall pay to the Pledgee under the Share
Rights Agreement, the interest of the liquidated damages, the overdue interest, as well
as all expenditures (including the lawyer’s fee) and other amounts paid by the Pledgee
for enforcing its rights under the Share Rights Agreement when the Pledgor breaches the
Share Rights Agreement;
	 
	 	1.2.3	 	all royalties for trademark license, the liquidated damages and other relevant
fees which Wangxing Company shall pay to the Pledgee under the Trademark License
Agreement, as well as all expenditures (including the lawyer’s fee) and other amounts
paid by the Pledgee for enforcing its rights under the Trademark License Agreement when
Wangxing Company breaches the Agreement;
	 
	 	1.2.4	 	the technology transfer fee, technology license fee, technical service fee,
equipment

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	 	 	 	assignment fee and/or equipment rental, etc., the liquidated damages and other relevant fees,
which Wangxing Company shall pay to the Pledgee under the Technical Services Agreement,
as well as all expenditures (including the lawyer’s fee) and other amounts paid by the
Pledgee for enforcing its rights under the Technical Services Agreement when Wangxing
Company breaches the Technical Services Agreement.

	1.3	 	Pledged Rights: shall mean the Pledgor’s shares in Wangxing Company and all other rights
relevant to such shares. Specifically, the Pledged Rights include but are not limited to the
following rights:

	 	1.3.1	 	all dividends, profit distributions, extra dividends, allocated shares and any
other kind of funds relevant to the Pledged Rights, as well as corresponding rights and
interests, which the Pledgor shall be entitled to receive from Wangxing Company at
present or in the future;
	 
	 	1.3.2	 	the rights enjoyed by the Pledgor in determining Wangxing Company’s operational
guidelines, investment plans and other major matters as well as on electing and changing
directors and supervisors, which are corresponding to the Pledged Rights it holds;
	 
	 	1.3.3	 	all interests warranted, confirmed and promised by other parties under Wangxing
Company’s articles of association and other organizational documents to the Pledgor;
	 
	 	1.3.4	 	the Pledgor’s right of claiming against any party to Wangxing Company’s articles
of association or any other organizational document for compensation due to any breach;
	 
	 	1.3.5	 	the Pledgor’s right of consenting to or opposing the rescission, amendment or
termination of Wangxing Company’s articles of association and other organizational
documents due to the Pledged Rights it holds;
	 
	 	1.3.6	 	Other powers and rights relevant to the Pledged Rights, which the Pledgor is
entitled to according to relevant laws and regulations of China as well as Wangxing
Company’s articles of association and other organizational documents.

	2	 	Pledge of Stock Rights
	 
	2.1	 	The Pledgor warrants that it will, pursuant to the Loan Agreement and the Share Rights
Agreement, pays off relevant debts to the Pledgee, and meanwhile provide guaranty for Wangxing
Company to perform the payment obligation and other relevant obligations under the Trademark
License Agreement and the Technical Services Agreement. Therefore, the Pledgor agrees to
pledge the Pledged Rights to the Pledgee.
	 
	2.2	 	The Pledgor shall, on the date of execution of this Agreement, submit to the Pledgee the
following documents:

	 	2.2.1	 	the investment certificate issued by Wangxing Company to the Pledgor evidencing
that the Pledgor lawfully holds the Pledged Stock Rights;
	 
	 	2.2.2	 	the written documents showing that Wangxing Company’s other shareholders agree
with the Pledgor on establishing the pledge of share rights under this Agreement;
	 
	 	2.2.3	 	all other materials and documents reasonably required by the Pledgee.

	2.3	 	The Pledgor shall deliver the capital contribution certificate to the Pledgee on the date of
effectiveness of this Agreement, and go through the procedures for record of modification of
the share register in Wangxing Company.
	 
	3	 	Scope of Security
	 
	3.1	 	The scope of security of the Pledged Stock Rights under this Agreement shall cover:

	 	3.1.1	 	the Secured Debts as defined in Article 1.2 of this Agreement;
	 
	 	3.1.2	 	the expenditures paid by the Pledgee for enforcing its right of pledge under this
Agreement.

	4	 	Term of Right of Pledge
	 
	4.1	 	The valid duration of the right of pledge which the Pledgee enjoys under this Agreement shall
commence on the effectiveness date of this Agreement until the three-year anniversary of the
date when the last sum of guaranteed debt is due.
	 
	5	 	Exercise of the Right of Pledge
	 
	5.1	 	In the event that the Pledgor fails to pay off its debts under the Loan Agreement or the
Share Rights Agreement to the Pledgee on time, or Wangxing Company fails to perform its
payment

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	 	 	obligation or other relevant obligations to the Pledgee under the Trademark License Agreement or
the Technical Services Agreement, or the Pledgor breaches its responsibilities or obligations
under this Agreement, the Pledgee shall be entitled to, within a scope permitted by the
applicable laws, exercise the right of pledge at any time it considers appropriate within the
duration of the right of pledge and in a method it considers appropriate. Such methods shall
include but not be limited to:

	 	5.1.1	 	negotiating with the Pledgor on paying off the Secured Debts by transferring to
the Pledgee the Pledged Rights;
	 
	 	5.1.2	 	selling off the Pledged Rights, and paying off the Secured Debts with the proceeds
from the sale;
	 
	 	5.1.3	 	retaining a competent institution to auction total or partial Pledged Rights;
and/or
	 
	 	5.1.4	 	disposing of the Pledged Rights by taking other appropriate measures permitted by
the applicable laws.

	5.2	 	In the process when the Pledgee disposes of the Pledged Rights according to the preceding
paragraph, the Pledgee shall be entitled to:

	 	5.2.1	 	substitute the Pledgor to exercise the powers or rights relevant to the Pledged
Rights as Wangxing Company’s shareholder;
	 
	 	5.2.2	 	pay necessary money for exercising any power or right imposed by this Agreement or
the law upon the Pledgee;
	 
	 	5.2.3	 	exercise in a way it considers appropriate or permit other person to exercise any
power or right under the Pledged Rights;
	 
	 	5.2.4	 	recover or claim the money payable to the Pledgor arising from the Pledged Rights
for paying off the Secured Debts;
	 
	 	5.2.5	 	with respect to claim by any person for the rights relevant to the Pledged Rights
in any respect, make settlement, reach reconciliation, resort to arbitration or
litigation proceedings or seek any other measures it considers appropriate;
	 
	 	5.2.6	 	take all other actions permitted by law for the purpose of enforcing any of its
rights under this Agreement.

	5.3	 	At the Pledgee’s request, the Pledgor must assist the Pledgee in obtaining all necessary
approvals or consents relevant to the Pledgee’s enforcement of its credit rights and the right
of pledge.
	 
	5.4	 	Within the duration of the right of pledge, the Pledgee shall be entitled to collect the
legal fruits of the Pledged Rights.
	 
	5.5	 	All the money collected by the Pledgee from the exercise of its right of pledge (including
but not limited to the price obtained from disposing of the Pledged Rights and any proceeds
derived from the Pledged Rights) shall be put into use in the following order on the premise
of not violating other clauses of this Agreement:

	 	5.5.1	 	It shall be at first used to pay all the expenses incurred to the Pledgee due to
exercise of the right of pledge and/or other rights under this Agreement;
	 
	 	5.5.2	 	Then, it shall be used by the Pledgee to pay off the Secured Debts according to
law;
	 
	 	5.5.3	 	If there is still remaining amount after the Secured Debts are paid off, the said
amount shall be paid to the Pledgor or the person who is entitled to receive it, with no
interest being paid.

	6	 	Rescission of the Right of Pledge
	 
	6.1	 	If, at any time within the effective duration of the right of pledge, the secured debts are
fully paid off, and the Pledgor no longer bears any obligation or liability under this
Agreement, the Pledgee’s right of pledge under this Agreement shall be extinct on the date
when all the Secured Debts are paid off. In such a case, at the Pledgor’s request, the Pledgee
shall execute the written documents on the pledge of shares created under this Agreement and
deliver them to the Pledgor, or assist the Pledgor in going through other procedures for
rescinding the pledge of shares under this Agreement.
	 
	6.2	 	Unless otherwise prescribed in the preceding paragraph, the pledge of shares under this
Agreement shall not be rescinded without the Pledgee’s prior written consent.
	 
	7	 	Nature of Security

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	7.1	 	The guaranty under this Agreement shall not be affected by other guaranties held by the
Pledgee regarding the Secured Debts, and shall not affect the effectiveness of those other
securities, either.
	 
	7.2	 	Neither the security nor the Pledgee’s rights under this Agreement shall be rescinded or
affected due to any of the following circumstances:

	 	7.2.1	 	the Pledgee’s offering a grace period to, rescission or mitigation of any person’s
debts at any time;
	 
	 	7.2.2	 	any amendment, modification or supplement to the Loan Agreement, the Share Rights
Agreement, the Trademark License Agreement and/or the Technical Services Agreement;
	 
	 	7.2.3	 	any disposal, modification or rescission of any other guaranty of the relevant
secured debts;
	 
	 	7.2.4	 	reconciliation reached on the claims raised by any person between the Pledgee and
such person;
	 
	 	7.2.5	 	any delay, act, nonfeasance or mistake arising out of the Pledgee’s exercise of
its rights;
	 
	 	7.2.6	 	any circumstance which the Loan Agreement, the Share Rights Agreement, the
Trademark License Agreement and/or the Technical Services Agreement or the performance
thereof are considered ineffective; or
	 
	 	7.2.7	 	any other event which might otherwise affect the Pledgor’s obligations under this
Agreement.

	8	 	Public Notarial Procedures
	 
	8.1	 	After the effectiveness of this Agreement, the Pledgor shall, at the Pledgee’s request,
cooperate with the Pledgee in going together to lawful public notary office to go through the
notarial procedures as required by this Agreement, and shall provide all necessary cooperation
as per the public notary office’s requirements.
	 
	8.2	 	All expenses incurred from the above mentioned notarial procedures shall be solely borne by
the Pledgee.
	 
	9	 	Special Provisions
	 
	9.1	 	Without the Pledgee’s prior written consent, the Pledgor shall not assign any right it may
enjoy under this Agreement or any obligation it shall bear hereunder to any other party.
	 
	9.2	 	The Pledgee shall be entitled to assign any of its rights or obligations under this Agreement
to any third party at any time without being consented by the Pledgor. In such a case, the
Pledgor shall unconditionally cooperate with the Pledgee in going through relevant procedures
for assignment of the rights and obligations, including but not limited to execution of
relevant agreement on change of contractual parties.
	 
	9.3	 	After the procedures for pledge of the shares under this Agreement are completed, unless the
Pledgee makes a reverse decision and informs the Pledgor, the Pledgor shall be obligated to
continue abiding by the legal provisions concerning the Pledged Rights, performing all rights
and obligations relevant to the Pledged Rights (including but not limited to exercising all
its powers and rights relevant to the Pledged Rights under Wangxing Company’s articles of
association), and fulfilling the prudence and credibility obligations which a shareholder
shall fulfill.
	 
	9.4	 	The Pledgee shall bear no obligation or legal liability for the Pledged Rights, nor does it
have to perform any obligation that the Pledgor shall bear for the Pledged Rights. Without
prejudice to the Pledgee’s rights under this Agreement, the Pledgee shall bear no obligation
or legal liability to others for the Pledged Rights under this Agreement.
	 
	9.5	 	The Pledgor must timely notify the Pledgee of any event that might affect the Pledged Stock
Rights or the value of the Pledged Stock Rights or might impede the Pledgor from performing
its rights as Wangxing Company’s shareholder or harm or delay its performing such rights.
	 
	9.6	 	Without the Pledgee’s prior consent, the Pledgor may not conduct any of the following acts:

	 	9.6.1	 	Amending or modifying in any other way Wangxing Company’s articles of association;
	 
	 	9.6.2	 	Establishing any further guaranty on the Pledged Rights beside the pledge created

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	 	 	 	under this Agreement;

	 	9.6.3	 	Disposing of any interest of the Pledged Rights in any way;
	 
	 	9.6.4	 	Conducting any act that might harm the Pledgee’s Pledged Rights or any of its
rights under this Agreement.

	9.7	 	Without the Pledgee’s written consent, the Pledgor shall not have the Pledged Rights
transferred or re-pledged, or dispose of the Pledged Rights in any other way which may harm
the right of pledge enjoyed by the Pledgee under this Agreement.
	 
	10	 	Representations, Commitments and Warranties
	 
	10.1	 	The pledgor hereby makes representations, commitments and warranties to the Pledgee as
follows:

	 	10.1.1	 	The Pledgor has lawful eligibility and necessary power to conclude this Agreement and
is able to entirely perform any of its obligations under this Agreement;
	 
	 	10.1.2	 	The Pledgor has lawfully performed its obligation of contributing investments to
Wangxing Company; is the only holder of the Pledged Rights; and has lawful, complete and
full ownership over all the Pledged Rights under this Agreement;
	 
	 	10.1.3	 	Wangxing Company’s shareholders’ meeting has adopted a resolution on consenting to the
pledge of shares pursuant to this Agreement;
	 
	 	10.1.4	 	Except the pledge established in this Agreement, the Pledgor has not established or
permitted others to establish any security right on the Pledged Rights without the
Pledgee’s prior written consent; the Pledged Rights are involved in no ownership dispute,
are not distained or limited in other legal proceedings, but may be pledged and
transferred according to the applicable laws;
	 
	 	10.1.5	 	There is neither existing or pending litigation, arbitration or administrative
proceedings against the Pledged Rights and/or the Pledgor nor any such threat;
	 
	 	10.1.6	 	The Pledgor’s execution of this Agreement, exercise of the rights under this Agreement,
or performance of the obligations under this Agreement will not violate any document or
legal provision applicable to the Pledgor or its properties;
	 
	 	10.1.7	 	The pledge created under this Agreement constitutes an effective security of the
secured debts, may be implemented according to its clauses, and shall not be restricted
by any other’s rights, interests or claims at a preferential or equal status;
	 
	 	10.1.8	 	All documents delivered by the Pledgor to the Pledgee and relevant to this Agreement
are authentic, complete and accurate in all substantive aspects, and there is no omission
that might cause any information in such documents to be in any way incorrect or
misleading;
	 
	 	10.1.9	 	This Agreement constitutes lawful, effective and binding obligations to the Pledgor,
and may be subject to compulsory enforcement according to its clauses upon application.

	10.2	 	The Pledgee hereby makes representations, commitments and warranties to the Pledgor:

	 	10.2.1	 	The Pledgee is a lawfully established and validly existing limited liability company,
has the right to conclude this Agreement and is able to perform its obligations under
this Agreement.
	 
	 	10.2.2	 	The Pledgee has obtained all authorizations and consents for executing and performing
this Agreement.

	11	 	Breach Liability
	 
	11.1	 	If Party A or Party B (each, a “Party”) directly or indirectly violates any provision
hereunder or fails to perform or fails to timely and fully perform any of its obligations
hereunder and thus constitutes a breach of this Agreement, the non-defaulting Party (the
“Non-Defaulting Party”) shall have the right to send a written notification requiring the
defaulting Party (the “Defaulting Party”) to make corrections, take adequate, effective and
timely measures to eliminate the effect thus caused, and indemnify the Non-Defaulting Party
any losses suffered from the Defaulting Party’s breach of contract.
	 
	11.2	 	Upon occurrence of any breach of contract, if the Non-Defaulting Party, based on reasonable
and objective judgment, believes that such breach of contract has caused it impossible or

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	 	 	unfair for the Non-Defaulting Party to perform its corresponding obligations hereunder, then the
Non-Defaulting Party may notify the Defaulting Party in writing that it will suspend its
performance of its corresponding obligations hereunder, until the Defaulting Party has stopped
its breach of contract, taken adequate, effective and timely measures to eliminate the effect
thus caused, and indemnified the Non-Defaulting Party any losses suffered from the Defaulting
Party’s breach of contract.

	11.3	 	The Non-Defaulting Party’s losses to be indemnified by the Defaulting Party due to its breach
of contract shall include the direct economic losses suffered by the Non-Defaulting Party due
to the breach of contract and any expectable indirect losses and additional fees and costs,
including but not limited to the lawyer’s fee, legal cost, arbitration cost, financial cost
and travel cost, etc.
	 
	12	 	Force Majeure
	 
	12.1	 	A Force Majeure Event refers to any event uncontrollable, unpredictable, or unavoidable even
predicted by the Parties hereunder, which interferes, affects or delays any Party’s
performance of the whole or part of its obligations hereunder. Such events shall include,
without limitation, the government’s act, acts of God, war, hacker’s attack or any other
similar event.
	 
	12.2	 	Any Party suffering from a Force Majeure Event may suspend its performance of its relevant
obligations hereunder thus prevented, without having to undertake any liability for breach of
contract, until the effect of such Force Majeure Event is eliminated. However, such affected
Party shall try its best to overcome such Force Majeure Event and reduce its adverse effect.
	 
	12.3	 	The Party affected by a Force Majeure Event shall provide the other Party with a legal
certificate issued by the local notary public (or any other competent organ) for certifying
such Force Majeure Event; otherwise, the other Party may request it to undertake breach
liability according to this Agreement.
	 
	13	 	Effectiveness, Amendment and Termination
	 
	13.1	 	This Agreement shall become effective upon the satisfaction of the following conditions:

	 	13.1.1	 	The pledgor and the Pledgee have formally executed this Agreement;
	 
	 	13.1.2	 	The pledge of the shares under this Agreement has been recorded in Wangxing Company’s
register of shareholders.

	13.2	 	Both parties may, after negotiations, amend this Agreement in the form of a written agreement
at any time.
	 
	13.3	 	This Agreement shall be terminated when any of the following circumstances arises:

	 	13.3.1	 	The duration of the right of pledge has elapsed;
	 
	 	13.3.2	 	Both parties rescind the pledge of the shares under this Agreement according to the
clause of “Rescission of the Right of Pledge” in this Agreement;

	 	13.3.3	 	The Pledgee and the Pledgor agree after negotiations to terminate this Agreement;
	 
	 	13.3.4	 	The Pledgee unilaterally consents on terminating this Agreement in advance.

	13.4	 	The early termination of this Agreement shall not affect either party’s rights or obligations
accrued under this Agreement prior to the date when this Agreement was early terminated.
	 
	14	 	Dispute Settlement
	 
	14.1	 	Any dispute arising out of interpretation or performance hereof shall be settled through
friendly negotiation between the Parties.
	 
	14.2	 	If such negotiation fails, both Parties shall submit such dispute to China International
Economic and Trade Arbitration Commission for arbitration according its current arbitration
rules. The place of arbitration shall be Beijing, and the language of arbitration shall be
Chinese. The arbitration award shall be final and binding on both Parties.
	 
	14.3	 	The formation, effectiveness, performance and interpretation hereof as well as dispute
settlement shall be governed by the laws of the People’s Republic of China.
	 
	15	 	Miscellaneous

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	15.1	 	This Agreement is executed in triplicate, with each Party holding one, one copy for notary,
all of which shall be of the same legal effect.
	 
	15.2	 	The headings used in this Agreement are for convenience only, and shall not affect the
interpretation of any provision hereof.
	 
	15.3	 	Both Parties may modify and supplement this Agreement through written agreements. Such
written agreement of modification or supplementation executed by both Parties shall constitute
a part of, and be of the same legal effect as, this Agreement.
	 
	15.4	 	If any provision hereunder is held invalid or unenforceable in whole or in part due to
violating laws or regulations or any other reason, the affected part of such provision shall
be deemed deleted from the Agreement. The deletion of such affected part shall not affect the
validity and enforceability of the other parts of such provision or that of other provisions
hereof. Both Parties shall negotiate and enter into new provisions so as to replace such
invalid or unenforceable provision.
	 
	15.5	 	Unless otherwise provided, any Party’s failure or delay in exercising any right, power or
privilege shall not be deemed as a waiver of such right, power or privilege. Any single or
partial exercise of any right, power or privilege shall not preclude exercise of any other
right, power or privilege.
	 
	15.6	 	This Agreement constitutes the entire agreement between the Parties with respect to the
subject matter hereof and supersede any and all previous or simultaneous oral and written
agreements, understandings and communication between the Parties relating to such subject
matter. Unless otherwise expressly provided herein, there shall not be any other express or
implied obligations or undertakings between the Parties.
	 
	15.7	 	This Agreement shall be binding upon both parties and their respective successors and
qualified assignees.
	 
	15.8	 	Any other matters not contemplated hereunder shall be subject to further negotiation between
the Parties.

	 	 	 	 	 	 	 	 	 
	Shareholder	 	 	 	SINA.com Technology
(China) Co., Ltd.	 	 
	 
	 	 	 	 	 	 	 	 
	Handwritten Signature:

	 	/s/
	 	Authorized Representative:
	 	/s/
	 	 
	 

	 	 
	 	 	 	 	 	 

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