[AMENDMENT NO. 5 FORM F-1 REGISTRATION STATEMENT ChinaCache International Holdings Ltd. Not Applicable Cayman Islands 7389 Not Applicable 6/F, Block A, Galaxy Plaza (Address, including zip code, and telephone number, including Law Debenture Corporate Services Inc. (Name, address, including zip code, and telephone number, Copies to: Z. Julie Gao, Esq. Approximate date of commencement of proposed sale to the public:] [30 September, 2010 Matter No.: 874474 Doc Ref: WL/ot/336895 (852) 2842 9532 wynne.lau@conyersdill.com ChinaCache International Holdings Ltd. 6/F, Block A, Galaxy Plaza No. 10 Jiuxianqiao Road Middle, Chaoyang District Beijing, 100015 People’s Republic of China Dear Sirs, ChinaCache International Holdings Ltd. Re: Offering Shares Registration Statement Securities Act Commission We have acted as special Cayman legal counsel to the Company]

[AMENDMENT NO. 3 FORM F-1 REGISTRATION STATEMENT ChinaCache International Holdings Ltd. Not Applicable Cayman Islands 7389 Not Applicable 6/F, Block A, Galaxy Plaza (Address, including zip code, and telephone number, including Law Debenture Corporate Services Inc. (Name, address, including zip code, and telephone number, Copies to: Z. Julie Gao, Esq. Approximate date of commencement of proposed sale to the public:] [CONFIDENTIAL TREATMENT CDN SERVICE FRAMEWORK AGREEMENT Contract No.: T-044-COM-20090317-01 Party A: Shenzhen Tencent Computer Systems Co., Ltd. Address: Floors 5 to 10, Fiyta Plaza, South District, Shenzhen Technology Park Legal Representative: Ma Huateng Contact Person: Liu Jianjuan Telephone: 0755-86013388-5693 Fax: 0755-86013021 Party B: Beijing Blue I.T. Technologies Co., Ltd. Address: Floor 6, Galaxy Plaza, No.10 Jiuxianqiao Middle Road, Chaoyang District,]

[AMENDMENT NO. 2 FORM F-1 REGISTRATION STATEMENT ChinaCache International Holdings Ltd. Not Applicable Cayman Islands 7389 Not Applicable 6/F, Block A, Galaxy Plaza (Address, including zip code, and telephone number, including Law Debenture Corporate Services Inc. (Name, address, including zip code, and telephone number, Copies to: Z. Julie Gao, Esq. Approximate date of commencement of proposed sale to the public:] [CHINACACHE INTERNATIONAL HOLDINGS LTD. (a Cayman Islands corporation) 5,500,980 American Depositary Shares Representing 88,015,680 Ordinary Shares UNDERWRITING AGREEMENT Dated: [ · ], 2010 CHINACACHE INTERNATIONAL HOLDINGS LTD. (a Cayman Islands corporation) 5,500,980 American Depositary Shares Representing 88,015,680 Ordinary Shares (Par Value US$0.0001 Per Share) UNDERWRITING AGREEMENT [ · ], 2010 Merrill Lynch, Pierce, Fenner & Smith One Bryant Park New] [REDACTED PORTIONS OF THIS AGREEMENT ARE MARKED BY AN*** CDN SERVICE FRAMEWORK AGREEMENT Contract No.: T-044-COM-20090317-01 Party A: Shenzhen Tencent Computer Systems Co., Ltd. Address: Floors 5 to 10, Fiyta Plaza, South District, Shenzhen Technology Park Legal Representative: Ma Huateng Contact Person: Liu Jianjuan Telephone: 0755-86013388-5693 Fax: 0755-86013021 Party B: Beijing Blue I.T. Technologies Co., Ltd. Address: Floor 6, Galaxy] [Consent of Independent Registered Public Accounting Firm We consent to the reference to our firm under the caption “Experts” and to the use of our report dated May 19, 2010 in the Registration Statement (Form F-1 No. 333-169288) and the related Prospectus of ChinaCache International Holdings Ltd. for the registration of its ordinary shares. Shanghai, the People’s Republic of China]