[JOINT FILING AGREEMENT May 19, 2014 Dated: SEQUOIA CAPITAL 2010 CV HOLDCO, LTD. S / SEQUOIA CAPITAL CHINA VENTURE 2010 FUND, L.P. SEQUOIA CAPITAL CHINA VENTURE 2010 PARTNERS FUND, L.P. SEQUOIA CAPITAL CHINA VENTURE 2010 PRINCIPALS FUND, L.P. A Cayman Islands exempted limited partnership, General Partner of Each A Cayman Islands limited liability company Its General Partner S / SC] [Execution Version TUNIU CORPORATION PREFERENCE C SHARE PURCHASE AGREEMENT March 9, 2011 TUNIU CORPORATION PREFERENCE C SHARE PURCHASE AGREEMENT Agreement This Preference C Share Purchase Agreement (the “ (1) Company Tuniu Corporation, a Cayman Islands exempted company (the “ (2) Tuniu HK Tuniu International Travel Service (HK) Company Limited, a company established under the laws of Hong Kong (“ (3)] [CUSIP No. 89977P106 SCHEDULE 13D Page 2 of 9 1. Names of Reporting Persons. I.R.S. Identification Nos. of above persons (entities only) Sequoia Capital 2010 CV Holdco, Ltd. IRS Identification No. 98-0660286 2. Check the Appropriate Box if a Member of a Group (See Instructions) ¨ ¨ (a) 3. SEC Use Only 4. Source of Funds (See Instructions) OO 5.]