Document:

Exhibit 4.70

	 
	 
	 

Power of Attorney

 

I, Jiangming Dong, the shareholder of Beijing Star World Technology
Company Limited (“Beijing Star World ”), hold 35% equity interest in Beijing Star World. I, hereby, authorize
Qizhi Software (Beijing) Co., Ltd.(“ Qizhi Software ”) to exercise all the shareholder rights in connection
with my .35% equity interest in Beijing Star World and irrevocably authorize Qizhi Software to exercise the following rights during
the term of this power of attorney:

 

I hereby authorize Qizhi Software, as my attorney-in-fact, to
exercise on my behalf, all the shareholder rights in connection with my 35% equity interest in Beijing Star World in accordance
with laws and the Articles of Association of Beijing Star World, including but not limited to: the right to propose to summon shareholders’
meetings, to receive notice regarding convening and agenda of shareholders’ meetings, to attend shareholders’ meetings
and to exercise the voting rights attached to my 35% equity interest in Beijing Star World at the shareholders’ meeting (including
voting on matters such as designation and appointment of directors, general manager, chief financial operator and other senior
management of Beijing Star World, dividends distribution plan and etc., as my authorized representative on the shareholders’
meeting), sell or transfer my 35% equity interest in Beijing Star World.

 

Qizhi Software is entitled to appoint another individual designated
by its board of directors (or executive directors) to exercise the rights authorized by Beijing Star World under this power of
attorney.

 

Unless the early termination of Business Operation Agreement
jointly executed by Beijing Star World, Qizhi Software, Zhenyu Xie, Zhengyu Chen and I, no matter for whatever reasons, the term
of this power of attorney is ten (10) years upon the signing date of this power of attorney. If this power of attorney is expired,
I shall agree to extend the term of this power of attorney as requested by Qizhi Software.

 

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[This is the signature page]

 

 

	Authorizer:	 
	Jianming Dong	 
	 	 
	/s/ Jianming Dong	 
	Date: December 17, 2009	 
	 	
         

         
	 
	Authorizee:	 
	Qizhi Software (Beijing) Co., Ltd.	 
	 	 	 
	(Chop):	/s/ [Company Stamp of Qizhi Software (Beijing) Co., Ltd.]	 
	Legal Representative/Authorized Representative:	/s/ Hongyi Zhou	 
	Date: December 17, 2009Exhibit 4.71

 

Power of Attorney

 

I, Zhengyu Chen, the shareholder of Beijing Star World Technology
Company Limited (“Beijing Star World ”), hold 30% equity interest in Beijing Star World. I, hereby, authorize
Qizhi Software (Beijing) Co., Ltd.(“ Qizhi Software ”) to exercise all the shareholder rights in connection
with my 30% equity interest in Beijing Star World and irrevocably authorize Qizhi Software to exercise the following rights during
the term of this power of attorney:

 

I hereby authorize Qizhi Software, as my attorney-in-fact, to
exercise on my behalf, all the shareholder rights in connection with my 30% equity interest in Beijing Star World in accordance
with laws and the Articles of Association of Beijing Star World, including but not limited to: the right to propose to summon shareholders’
meetings, to receive notice regarding convening and agenda of shareholders’ meetings, to attend shareholders’ meetings
and to exercise the voting rights attached to my 30% equity interest in Beijing Star World at the shareholders’ meeting (including
voting on matters such as designation and appointment of directors, general manager, chief financial operator and other senior
management of Beijing Star World, dividends distribution plan and etc., as my authorized representative on the shareholders’
meeting), sell or transfer my 30% equity interest in Beijing Star World.

 

Qizhi Software is entitled to appoint another individual designated
by its board of directors (or executive directors) to exercise the rights authorized by Beijing Star World under this power of
attorney.

 

Unless the early termination of Business Operation Agreement
jointly executed by Beijing Star World, Qizhi Software, Jianming Dong Zhenyu Xie and I, no matter for whatever reasons, the term
of this power of attorney is ten (10) years upon the signing date of this power of attorney. If this power of attorney is expired,
I shall agree to extend the term of this power of attorney as requested by Qizhi Software.

 

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left blank]

    	 

    	 

    

 

[This is the signature page]

 

 

	Authorizer:	 
	Zhengyu Chen	 
	 	 
	/s/ Zhengyu Chen	 
	Date: December 17, 2009	 
	 	
         

         
	 

 

	Authorizee:	 
	Qizhi Software (Beijing) Co., Ltd.	 

 

	(Chop):	/s/ [Company Stamp of Qizhi Software (Beijing) Co., Ltd.]	 

	Legal Representative/Authorized Representative:	/s/ Hongyi Zhou	 

	Date: December 17, 2009Exhibit 4.72

 

 

Power of Attorney

 

I, Zhenyu Xie, the shareholder of Beijing Star World Technology
Company Limited (“Beijing Star World”), hold 35% equity interest in Beijing Star World. I, hereby, authorize
Qizhi Software (Beijing) Co., Ltd.(“Qizhi Software”) to exercise all the shareholder rights in connection with
my 35% equity interest in Beijing Star World and irrevocably authorize Qizhi Software to exercise the following rights during the
term of this power of attorney:

 

I hereby authorize Qizhi Software, as my attorney-in-fact, to
exercise on my behalf, all the shareholder rights in connection with my 35% equity interest in Beijing Star World in accordance
with laws and the Articles of Association of Beijing Star World, including but not limited to: the right to propose to summon shareholders’
meetings, to receive notice regarding convening and agenda of shareholders’ meetings, to attend shareholders’ meetings
and to exercise the voting rights attached to my 35% equity interest in Beijing Star World at the shareholders’ meeting (including
voting on matters such as designation and appointment of directors, general manager, chief financial operator and other senior
management of Beijing Star World, dividends distribution plan and etc., as my authorized representative on the shareholders’
meeting), sell or transfer my 35% equity interest in Beijing Star World.

 

Qizhi Software is entitled to appoint another individual designated
by its board of directors (or executive directors) to exercise the rights authorized by Beijing Star World under this power of
attorney.

 

Unless the early termination of Business Operation Agreement
jointly executed by Beijing Star World, Qizhi Software, Jianming Dong, Zhengyu Chen and I, no matter for whatever reasons, the
term of this power of attorney is ten (10) years upon the signing date of this power of attorney. If this power of attorney is
expired, I shall agree to extend the term of this power of attorney as requested by Qizhi Software.

 

[The remainder of this page intentionally
left blank]

 

    	 

    	 

    

 

[This is the signature page]

 

 

	Authorizer:	 
	Zhengyu Xie	 
	 	 
	/s/ Zhengyu Xie	 
	Date: December 17, 2009	 

 

 

	Authorizee:	 
	Qizhi Software (Beijing) Co., Ltd.	 

 

	(Chop):	/s/ [Company Stamp of Qizhi Software (Beijing) Co., Ltd.]	 

	Legal Representative/Authorized Representative:	/s/ Hongyi Zhou	 

	Date: December 17, 2009Exhibit 4.73

  

This is an English Translation

 

 

Spousal Consent
Letter

 

I, Chunxia He (ID No:    ), as the legal
spouse of Jianming Dong (ID No: ), hereby unconditionally agree that the equity interests of Beijing Qihu Technology Company Limited,
owned by and registered under name of my spouse, is disposed in accordance with the arrangements under Loan Agreement, Equity,
Equity Disposition Agreement and Equity Pledge Agreement dated as of October 18, 2010 and other supplementary agreements to be
signed from time to time.

 

I further guarantee not to take any
action at any time with an intention conflicting against the above-identified arrangements, including making a claim to court or
other competent authorities that such equity interests constitute the property or community property between my spouse and me.
I, unconditionally and irrevocably, hereby waive any and all rights or benefits granted to me with relation to such equity interests
under applicable laws and confirm that in no event such equity interests constitute any community property between my spouse and
me.

 

	 	 	 
	 	Name of the Spouse:	 /s/ Chunxia He
	 	 	Chunxia He
	 	 	 
	 	ID No:	 
	 	Date	October 18, 2010

 

Witness:

 

 

/s/ Mingzhe Zhou

_______________________

Mingzhe Zhou

  

 

/s/ Qiuhua Xu

_______________________

Qiuhua XuExhibit 4.74

	 
	 
	 

 

This is an English
Translation

 

Spousal Consent
Letter

 

I, Xun Guo (ID No:    ), as the legal
spouse of Xiaohong Shi (ID No: ), hereby unconditionally agree that the equity interests of Beijing Qihu Technology Company Limited,
owned by and registered under name of my spouse, is disposed in accordance with the arrangements under Loan Agreement, Equity,
Equity Disposition Agreement and Equity Pledge Agreement dated as of October 18, 2010 and other supplementary agreements to be
signed from time to time.

 

I further guarantee not to take any
action at any time with an intention conflicting against the above-identified arrangements, including making a claim to court or
other competent authorities that such equity interests constitute the property or community property between my spouse and me.
I, unconditionally and irrevocably, hereby waive any and all rights or benefits granted to me with relation to such equity interests
under applicable laws and confirm that in no event such equity interests constitute any community property between my spouse and
me.

 

	 	 	 
	 	Name of the Spouse:	 /s/ Xun Guo
	 	 	Xun Guo
	 	ID No:	 
	 	Date	October 18, 2010

 

Witness:

 

 

/s/ Mingzhe Zhou

_______________________

Mingzhe Zhou

 

 

 

 

/s/ Qiuhua Xu

_______________________

Qiuhua Xu

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