According to enterprise data, Chongqing Hongchang Commercial Operation Management Co., Ltd. was established on September 27, 2022, and its business scope includes licensed projects: river sand mining; Building engineering construction; Architectural engineering design; Exploitation of mineral resources in non-coal mines. (Projects subject to approval according to law can only be operated after approval by relevant departments. The specific business projects shall be subject to the approval documents or licenses of relevant departments. ) general project: enterprise management; Enterprise management consulting; Sales agent; Mining machinery sales; Research and development of waste asphalt recycling technology: sales of building materials; Special equipment leasing; Sales of cement products. (Except for projects subject to approval according to law, independent business activities shall be carried out according to law with the business license)