According to enterprise data, Tangxian Zhonglian New Materials Co., Ltd. was established on 2021-kloc-0/-25, and its business scope includes limestone and gypsum mining. Mining, processing and sales of nonmetallic mineral resources; Mine management; Production and sales of building aggregate; Road transport of general goods and special goods transport (tank type) (license is required for operation). (Projects subject to approval according to law can only be operated after approval by relevant departments)