TOUR [Tuniu] SC 13G: JOINT FILING AGREEMENT This Joint Filing Agreement, dated
[JOINT FILING AGREEMENT This Joint Filing Agreement, dated as of April 23, 2020 is by and among Yiheng Capital Partners, L.P., Yiheng Capital, LLC, and Yuanshan Guo (collectively, the "Filers"). This Joint Filing Agreement may be terminated by any of the Filers upon one week's prior written notice (o]