[Joint Filing Agreement [ OCEAN IMAGINATION L.P. a Cayman Islands exempted limited partnership Ocean Voyage L.P. Fortune Smart Holdings Limited its General Partner Nanyan Zheng Director] [Assumption Agreement August 17, 2015 Reference is made to certain ROFR Agreement Ctrip Keystone Contribution Agreement WHEREAS, Keystone intends to enter into a Contribution Agreement (the “ By the execution of this 2. 3. ASSUMING PARTY: Ocean Imagination L.P. a Cayman Islands exempted limited partnership Ocean Voyage L.P. its General Partner Fortune Smart Holdings Limited] [EXECUTION COPY RIGHT OF FIRST REFUSAL AGREEMENT Agreement Effective Date THIS LOCK UP AND RIGHT OF FIRST REFUSAL AGREEMENT (this “ (1) Ctrip C-Travel International Limited, a limited liability company organized and existing under the laws of the Cayman Islands (“ (2) Keystone Keystone Lodging Holdings Limited, a limited liability company organized and existing under the laws of the Cayman] []