Caissa Tosun Development Co., Ltd. provides travel and tourism related services in China and internationally. It offers Chinese citizens tourism, foreign citizens inbound tour, business travel, incentive travel, international cooperation and exchange, international conference and exhibition, aviation, railway passenger transportation agency, tourism and information consulting, and online services. The company was formerly known as Hna-Caissa Travel Group Co., Ltd. and changed its name to Caissa Tosun Development Co., Ltd. in December 2019. The company was founded in 1993 and is headquartered in Beijing, China. Caissa Tosun Development Co., Ltd. is a subsidiary of HNA Tourism Group Co., Ltd.