According to the development plan of Chashi brand, at present, only Shenzhen and Wuhan are selected to join in the whole country. Teastone brand has no chance to join in other regions for the time being. This decision is based on market research, brand positioning and resource allocation. Choose to join in Shenzhen and Wuhan because these two cities have greater market potential and consumer demand, or have better operating conditions and support systems in these two regions.