[SHARE PURCHASE AGREEMENT SHARE PURCHASE AGREEMENT Agreement Seller Purchaser WHEREAS, Company Ordinary Shares WHEREAS Purchased Ordinary Shares NOW, THEREFORE ARTICLE I PURCHASE AND SALE OF THE PURCHASED ORDINARY SHARES 1.1 Purchase and Sale of Purchased Ordinary Shares. Purchase Price Subject to the terms and conditions of this Agreement, at the Closing (as defined below), Seller shall sell, convey, assign and] [SHARE PURCHASE AGREEMENT SHARE PURCHASE AGREEMENT Agreement Seller Purchaser WHEREAS, Company ADSs WHEREAS Purchased ADSs NOW, THEREFORE ARTICLE I PURCHASE AND SALE OF THE PURCHASED ADSS 1.1 Purchase and Sale of Purchased ADSs. Purchase Price Subject to the terms and conditions of this Agreement, at the Closing (as defined below), Seller shall sell, convey, assign and deliver to Purchaser, and] [CUSIP No. 16944W104 1. Names of reporting persons. Zhengdong Zhu 2. Check the appropriate box if a member of a group (see instructions) ¨ x (a) 3. SEC use only 4. Source of funds (see instructions) OO 5. ¨ 6. Citizenship or place of organization]