According to enterprise data, Chongqing Rongchang Antang Industrial Co., Ltd. was established on 20 12-06- 14, and its business scope includes general projects: infrastructure and transportation infrastructure construction; Water conservancy infrastructure construction; Earthwork services, engineering drainage construction services and supporting construction; Pipeline installation; Sales of building materials; Lease of self-owned houses; Comprehensive agricultural development; Livestock and poultry breeding and sales; Construction and management of water supply and drainage works; Provide water for production and living (it can only be operated after obtaining relevant administrative license); Installation and sales of water treatment equipment and pipe fittings; Water supply and drainage technical consulting services (except for projects subject to approval according to law, independent business activities shall be carried out according to law with business licenses)