Document:

exv4w21

EXHIBIT 4.21

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

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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 18 (Day)
08 (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 18 (Day)
08 (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: GF 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 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 31 (Day) 03 (Month) 2008 (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 55% 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 5,500,000 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 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 31 (Day) 03 (Month) 2008 (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 45% 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 4,500,000 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 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

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	 	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

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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.

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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/
	 	 
	 

	 	 
	 	 	 	 	 	 

4exv4w22

Exhibit 4.22

Agreement on Technical Services

     This Agreement is made and entered into this day of January 01, 2008 by and between Beijing
New Media Information Technology Co., Ltd. (“Party A”) with its principle address at Room C Floor
16 , SOHO Jianguo road, Chaoyang District, Beijing, PRC and Guangzhou Media Message Technologies,
Inc. (“Party B”) with its principle address at Floor 10, Xinchuangju Building, Tiyu Road, Tianhe
District, Guangzhou, PRC.

     Whereas:

	(1)	 	Party A is a limited liability company incorporated in Beijing and existing under the laws of
PRC engaged in technology development of computer internet and the technical service business;

	(2)	 	Party B is a limited liability company registered in PRC engaged in the business of mobile
value-added telecommunication service, internet information service and internet web
advertising service;

	(3)	 	For the purpose of business operation, Party B decides to employ Party A as its technical
service provider to provide relevant technical services to Party B, and Party A agrees to
provide Party B with the corresponding technical services according to and subject to the
provisions of this Agreement;

     NOW, THEREFORE, in consideration of covenants and agreement herein contained through friendly
consultation, the parties hereby agree as follows:

	1.	 	Interpretation
	 
	1.1	 	“Websites” means the websites with the domain names as cmjob.com, cm98.com, chinawxw.com and
any other websites operated by Party B.

	1.2	 	“Internet Information Service Business” means the business to provide web visitors with
various information services via internet.

	1.3	 	“Mobile Value-added Telecommunications Service” means the business to provide mobile users
with value-added services such as mobile information service and positioning service and etc
via the service platform connected to the mobile network.

	2.	 	Technical services
	 
	2.1	 	Party B agrees to have Party A to provide any technical services (including, but not limited
to, technical support, technical training and technical consultation as well as those services
listed in appendix I) for internet information service business, mobile value-added
telecommunication service business.

	2.2	 	Party B shall provide Party A with any and all necessary assistance including, but not
limited to:

	 	2.2.1	 	Urge its employees to take proper, reasonable due diligence when using and

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	 		 	operating the system and the equipment;
	 
	 	2.2.2	 	Inform Party A without any delay of any circumstance that may affect the
business operation of Party B;
	 
	 	2.2.3	 	Allow Party A and its authorized persons to access any site owned or rented by
Party B that stores any system or equipment relating to its business operation at any
reasonable time;
	 
	 	2.2.4	 	Provide any other necessary assistance.

	3.	 	Technical Service Fees and Payment

	3.1	 	For technical services rendered by Party A, both parties agree hereby that the technical
service fee shall be based on the quantity of work performed which is measured by time costs
incurred by Party A’s engineers. The time cost are as below:

	 	3.1.1	 	Technical services rendered by engineer of Party A are
charged at RMB 2000 Yuan
per hour per head.
	 
	 	3.1.2	 	Technical services rendered by junior engineer of Party A are
charged at RMB 1000
Yuan per hour per head.

	3.2	 	Within the working days of each month, Party A shall based on the work hours performed by its
engineers during the immediately preceding month and the time costs as set out in this
agreement calculate the technical service fees and issue billing statement to Party B. The
billing statement shall contain the number of hours performed by each class of engineer of
Party A. Party B shall pay the technical service fees as stated on the billing statement
within three days after receiving the billing statement.

	3.3	 	For the fees as described above paid by Party B to Party A, Party A shall issue corresponding
invoices to Party B.

	4.	 	Assets Ownership
	 
	4.1	 	Both parties agree hereby that the ownership of the following assets that come into existence
during the process of technical services providing by Party A to Party B shall be entitled to
Party A:

	 	4.1.1	 	Texts, photographs, layout designing and any other graphics or information
contents created or produced by Party A; except for those the copyrights of which are
owned by the third party;
	 
	 	4.1.2	 	Database (including, but not limited to, database to store contents and to store
the information of registered users), software developed by Party A for Party B and any
content of such database;
	 
	 	4.1.3	 	Any other tangible or intangible assets coming or deriving from the process of
technical services provided by Party A to Party B subject to this Agreement, except for
those owned by Party B with definite evidences.

	4.2	 	Party B recognizes Party A’s ownership of such assets and promises not to claim against any
of such assets, and upon request from Party A, shall provide any necessary assistance,
including, but not limited to, rendering the corresponding certificates, if necessary, to
clarify the ownership of the aforesaid assets held by Party A.

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	4.3	 	Within the cooperation period of both parties, any equipment, technology and software of
Party A provided to Party B, except for those that have been transferred to Party B subject to
the terms of this agreement or other written agreements expressly, shall be part of assets
owned by Party A and Party B enjoys the right to use such assets during the term of this
agreement only.

	5.	 	Confidentiality
	 
	5.1	 	Either party shall keep any confidential material or information (hereinafter referred to as
“confidential information”) of the other party acquired or accessed in signing or performing
this agreement highly confidential and shall not disclose, give or transfer such confidential
information to any third party.

	5.2	 	Either party shall return, destroy or disposition any document, data or software carrying
confidential information of the other party to such party in any desirable way upon request
and shall not use such confidential information thereafterwards.

	5.3	 	After termination of this agreement, obligations of each party under this agreement shall not
cease. Each party shall still abide by the confidentiality clause of this agreement and
perform its obligation of confidentiality until the other party approves release of that
obligation or violation of such confidentiality clause of this agreement will not result in
any prejudice to the other party practically.

	6.	 	Payment of Tax
	 
	6.1	 	Both parties should pay taxes to the concerned taxation authority respectively in accordance
with laws and rules and national policies.

	6.2	 	If either party pays any tax for the other party, the paying party shall deliver the relevant
tax payment certificates to the other party, who shall then refund the same amount as that of
the tax payment to the paying party within seven (7) days after receiving such certificates.

	7.	 	Representation, Undertaking and Warranty
	 
	7.1	 	Either party represents, undertakes and warrants to the other party the following:

	 	7.1.1	 	Be a company legally incorporated and existing;
	 
	 	7.1.2	 	Have all competence and qualifications to conduct the transaction that is within
its legally registered business scope prescribed under this Agreement;
	 
	 	7.1.3	 	Have all authorization and competence to enter into this Agreement and have
authorized its representative with sufficient power to sign this Agreement on behalf of
such party respectively;
	 
	 	7.1.4	 	Have capability to perform the obligations under this Agreement and performing
such obligations dose not constitute any breach of any restriction of legal documents
binding upon such party;
	 
	 	7.1.5	 	Not subject to any liquidation, dissolution or bankruptcy proceeding.

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	7.2	 	Party B warrants that it shall not use and copy the trademark, the logo and the company name
of Party A or its affiliates without prior written consent of Party A, except necessary for
the work stipulated in this Agreement.

	7.3	 	Party B shall neither conduct at its own nor allow any third party to conduct any action or
omission to the technology or any other intellectual property or any other right of Party A.

	8.	 	Liability for Default
	 
	8.1	 	Any breach of any article of the agreement directly or indirectly or no commitment or
commitment out of time insufficiently to the obligations of the agreement shall constitute
breach of the contract. The party that observes the contract (“non-breaching party”) shall
have the right to request the breaching party (“the breaching party”) by written notice to
make corrections to its breaching actions and avoid the bad result with sufficient, effective
and timely measures taken, and to compensate for the losses of the non-breaching party due to
its breaching actions.

	8.2	 	After any breaching occurs, the non-breaching party, if holding that the breaching has
resulted in impossibility or unfairness for the non-breaching party to perform the relevant
obligations under this agreement with reasonable and objective discretion applied, shall have
the power to discontinue its relevant obligations of this agreement with written notice sent
to the non-breaching party until the breaching party stops its breach of the contact, take
sufficient, effective and timely measures to avoid the bad results, and compensate for the
losses of the non-breaching party due to its breaching actions.

	8.3	 	The indemnification that the breaching party makes to the non-breaching party shall include
any direct economic losses and any predictable indirect losses or excess expenses that occur
to the non-breaching party due to violation of the contract by the breaching party, including
but not limited to attorney fees, legal costs, arbitration fees, financial expenses, travel
expenses and etc.

	9.	 	Force Majeure
	 
	9.1	 	“Force Majeure” shall mean any event out of the parties’ reasonable control, non-foreseeable,
or unavoidable even has been foreseen and such event hinders, affects or delays any party’s
performance of all or part of his obligations according to this Agreement, including, but not
limit to, government’s acts, natural disasters, war, hacker attack or any other similar
events.

	9.2	 	The party suffering from Force Majeure may suspend performing its relevant obligations under
this Agreement that cannot be performed due to Force Majeure till the effect of Force Majeure
is eliminated without bearing any liability for breach of this Agreement. However, such party
shall exert its best efforts to overcome such event and reduce its negative effects to the
minimum.

	9.3	 	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.

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	10.	 	Effectiveness, Modification and Termination
	 
	10.1	 	This Agreement shall become effective on the date of its being signed and sealed by the
authorized representatives of both parties and shall continue in force for a period of one (1)
year.

	10.2	 	Unless otherwise expressly provided herein, Party A shall have the right to immediately
terminate this Agreement by writing notice at its own discretion at any time, in case that
Party B defaults its performance of any of following obligations:

	 	10.2.1	 	Party B breaches this Agreement, and yet not corrects its breach or takes full,
effective and timely measures to remedy its failure and compensates Party A for the loss
arising therefrom, within thirty (30) days after the date of notice by Party A demanding
the performance,
	 
	 	10.2.2	 	Party B goes bankrupt or enters into a liquidation proceeding and such proceeding is
not yet withdrawn within seven (7) days;
	 
	 	10.2.3	 	Party B may not perform this Agreement for over twenty (20) days due to force majeure.

	10.3	 	Notwithstanding the aforesaid provisions, Party B agrees hereby that Party A shall have the
right to terminate this Agreement by written notice twenty (20) days in advance without any
reason at any time. Unless otherwise expressly provided herein, Party B shall not terminate
this agreement prior to the term of this Agreement.

	10.4	 	Earlier termination of this Agreement shall not release either party from performing its
rights and obligation that has come into existence prior to such termination.

	11.	 	Serve of Notice
	 
	11.1	 	Any notice required relating to this Agreement from one party to the other party shall be in
writing and then sent by person, by fax, telex, teletex or email, or prepaid registered mail,
express mail, which shall be deemed as being served on the date when sent by person, by fax,
by telex or email or on the third (3) day after being sent by prepaid registered mail or
express mail.

	11.2	 	Unless otherwise notified by either party in writing to modify its contact address, any and
all notices under this agreement shall be sent according to the latest written agreed method.

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

	12.2	 	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 hereto.

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

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

	13.2	 	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.

	13.3	 	Both parties may make amendments and supplements to this Agreement in written form, which
shall be part of this Agreement with equal legal force.

	13.4	 	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.

	13.5	 	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.

	13.6	 	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. Unless otherwise expressly provided herein, no any other expressed or implied
obligations or covenants exist between the parties.

	13.7	 	The Parties may additionally negotiate and confirm any other issues not covered by this
agreement.

	 	 	 
	Beijing New Media Information
Technology Co., Ltd.

	 	Guangzhou Media Message Technologies,
Inc.
	 
	 	 
	Authorized Representative

	 	Authorized Representative

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Appendix 1:
Contents of Technical Service

Both parties agree hereby that the contents of the technical service specified by this agreement
shall include, but not limited to, the following:

	1.	 	Technical Support to Mobile Value-added Telecommunication
	 
	1.1	 	Party A agrees hereby to serve as the technical service supplier and provide desired
technical service for mobile value-added telecommunication to party B subject to terms and
conditions of this agreement, including, but not limited to the following in connection with
mobile value-added telecommunication:

	 	1.1.1	 	Development, update and upgrade of software on client end;
	 
	 	1.1.2	 	Development, update and upgrade of software on network server end;
	 
	 	1.1.3	 	Technical development and maintenance of database;
	 
	 	1.1.4	 	Technical development of system;
	 
	 	1.1.5	 	Overall designing of system;
	 
	 	1.1.6	 	Installation and debugging of system;
	 
	 	1.1.7	 	Trial operation and testing of system;
	 
	 	1.1.8	 	Installation and debugging of systematic expansion;
	 
	 	1.1.9	 	Examination and maintenance of operation hardware equipment;
	 
	 	1.1.10	 	Daily maintenance of system software;
	 
	 	1.1.11	 	Update and upgrade service of software.

	2.	 	Technical Support for Network Information Service
	 
	2.1	 	Party A agrees hereby to provide technical service in connection with business operation of
the websites to party B including, but not limited to the following:

	 	2.1.1	 	Development, update and upgrade of software on network client end;
	 
	 	2.1.2	 	Development, update and upgrade of software on network server end;
	 
	 	2.1.3	 	Technical development and maintenance of database;
	 
	 	2.1.4	 	Technical development of website system;
	 
	 	2.1.5	 	Overall designing of website system;
	 
	 	2.1.6	 	Installation and debugging of website system;
	 
	 	2.1.7	 	Operation and test of website system;
	 
	 	2.1.8	 	Installation and debugging of website systematic expansion;
	 
	 	2.1.9	 	Examination and maintenance of operation hardware equipment for the websites;
	 
	 	2.1.10	 	Daily maintenance of website system software;
	 
	 	2.1.11	 	Update and upgrade service of website system software.

	2.2	 	Prepare, statistic, integrate information used by party B for network information service
including, but not limited to those concerning press, finance and economics, science and
technology, sport, entertainment, game, fashion, education, medical treatment, sanitation,
culture, professionals etc; program database and design technical platform; assist in
deciding the frame and channel structure of the said contents and provide technical update
service.

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	2.3	 	Provide designing and technical support for web pages to party B and assist party B to
provide easy and friendly interface of various services such as news, shopping, medical
treatment, chat, entertainment, search and registration to end users.

	2.4	 	In relation to the system software provided by Party A to Party B for its website operation,
Party A shall provide Party B with instruction manual and other information documents of the
operational system software of the websites.

	2.5	 	In the event that Party B requires assistance from Party A for its updating of system
environment of the websites including operational system environment and database environment,
Party A shall render relevant solutions.

	2.6	 	Assist party B in settlement of problems arising from installation and operation of
operational equipment of the websites.

	3.	 	Technical Training
	 
	3.1	 	Party A agrees hereby to provide the following training service to party B and its staffs:

	 	3.1.1	 	Skill training for Installation and operation of the equipment and facilities;
	 
	 	3.1.2	 	Training Service for customers service and technology or others;
	 
	 	3.1.3	 	Training for application of online editing software.

	4.	 	Technical Consultation
	 
	4.1	 	Provide consultation service for the purchase of equipment and software and hardware system
needed for network operation developed by party B, including, but not limited to technical
advice for selection, systematic installation and debugging of tool software, internet
applications and technical platform as well as purchase, type and performance of suitable
hardware facilities and equipment.

	4.2	 	In relation to technology project specified by party B, Party A agrees to provide technical
consultation service including technical argument, technical forecast, technical investigation
for specific subject, report of analysis and assessment to party B

	4.3	 	Provide technical consultation for application of network software, hardware, equipment and
online editing software of the system set or to be set by party B.

	4.4	 	Provide the following information to party B: domestic, oversea and party B’s network service
including investigation, analysis and assessment report of trend, technology, cost and income
of special network service.

	4.5	 	Party B may make problem inquiry or function consultation on specific technical problems
through Email, telephone, fax and the engineers of party A shall assist Party B to settle such
problems for clients.

	4.6	 	In case of any emergency out of Party B’ control, the engineers of Party A may log into the
websites via telnet to inspection and system and then solve the problems after obtaining
consent from Party A.

	4.7	 	Party A may meet the requirements of other technical consultations proposed by party B
within its compass.

[Text ends]

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