[] [Our ref DLK\661944\4401727v3 Direct tel +852 2971 3006 Email derrick.kan@maplesandcalder.com NetQin Mobile Inc. 4 May 2011 Dear Sirs NetQin Mobile Inc. Company Registration Statement Commission Offering ADSs New Shares We have acted as Cayman Islands legal advisers to NetQin Mobile Inc. (the “ 1 Documents Reviewed For the purposes of this opinion, we have reviewed only originals, copies or final] [May 4, 2011 NetQin Mobile Inc. Initial Public Offering of NetQin Mobile Inc. (the “Company”) Re: Ladies and Gentlemen: In connection with rendering the opinion set forth herein, we have examined and relied on originals or copies of the following: (a) the Registration Statement; and (b) such other documents, certificates, and records as we have deemed necessary or appropriate as] [JINCHENG TONGDA & NEAL 10th Floor, China World Tower, No.1 Jianguo Menwai Avenue, Beijing 100004, China Tel: (86-10) 5706-8585 Fax: (86-10) 6518-5057, 8515-0267 NetQin Mobile Inc. Re: NetQin Mobile Inc. Public Offering May 4, 2011 Dear Sirs, PRC We are qualified lawyers of the People’s Republic of China (the “ Company ADSs Ordinary Shares Offering Listing Transaction We are acting] [CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We hereby consent to the use in this Registration Statement on Form F-1/A of NetQin Mobile Inc. of our report dated February 18, 2011, except for Note 19 which is as of April 8, 2011, relating to the consolidated financial statements of NetQin Mobile Inc., which appears in such Registration Statement. We also]

[] [Value-added Information Services Channel Cooperation Agreement (Overseas) Party A: Tianjin Yidatong Technology Development Co., Ltd. Postal Code: 100055 Contact Person: Xu Rong And Party B: NetQin Mobile Inc. Address: 4 Building, 11 Hepingli East Street, Dongcheng District, Beijing Postal Code: 100013 Contact Person: Dang Jingfeng (Collectively, the “Parties”) Through thorough negotiations, the Parties hereby agree as follows regarding the cooperation] [WIRELESS VALUE-ADDED APPLICATION SERVICES CHANNEL COOPERATION AGREEMENT (Domestic) Between Beijing NetQin Technology Co., Ltd. And Tianjin Yidatong Technology Development Co., Ltd. 1 Party A: Tianjin Yidatong Technology Development Co., Ltd. Party B: Beijing NetQin Technology Co., Ltd. Legal representative: XU Rong Legal representative: LIN Yu Address: 502-2, Block 1, Haowei Building, 8 Dasan Dajie, Tianjin Development Zone Address: 27/F, Tower] [Business Cooperation Agreement Party A: China Mobile Group Beijing Co., Ltd. Address: 7 Dongzhimen South Avenue, Dongcheng District, Beijing Postal Code: 100007 Tel: 86-10-52186699 Facsimile: 86-10-65541330 Bank: Chang’an Sub-branch, Beijing Branch, Industrial and Commercial Bank of China Account No.: * Party B: Beijing NetQin Technology Co., Ltd. Address: Building #4, 11 Heping East Street, Dongcheng District, Beijing Postal Code: 100013] [CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We hereby consent to the use in this Registration Statement on Form F-1/A of NetQin Mobile Inc. of our report dated February 18, 2011, except for Note 19 which is as of April 8, 2011, relating to the consolidated financial statements of NetQin Mobile Inc., which appears in such Registration Statement. We also]