What is the relationship between Xiao Chunming and Xiao Chunhong?

Brotherhood. According to the query of Guiyang Fangtianxia, Xiao Chunhong and Xiao Chunming are the richest people in Guizhou. At the end of 1998, they founded Cheng Hongli group, which became a domestic smart city construction operator, and its business covered diversified industries such as urban construction and operation, education, medical care, agriculture and cultural tourism.