What is the relationship between Shell Hotel and Greentree Inn?

Shell Hotel is a sub-brand of Greentree Inn. According to Sohu Entertainment Network, Shell Hotel is a brand hotel newly established by Greentree Inn Management Group, claiming that the brand is free of franchise fee, and the brand usage fee is only 2% in the first five years. Shell Hotel is a sub-brand of Greentree Inn. GreenTree Inn Hotel Management Group is a wholly foreign-owned international hotel chain group, which was founded in June 2004 by Mr. Xu Shuguang, the chairman of the board, and several shareholders of multinational groups. It is the first brand of China business hotel chain.