Wilson Engineering and Technical Services Co., Ltd. is an investment holding company, mainly engaged in providing production and implementation design, construction and commissioning project solutions to coal chemical manufacturers. The company operates through four business units. Petrochemical Department is engaged in providing design, procurement and construction (EPC) services to ethylene and downstream petrochemical manufacturers. The Coal Chemical Industry Department is engaged in providing EPC services to coal chemical manufacturers. The Refining Department is engaged in providing procurement and construction management services to project owners. Other products and Services Department is engaged in providing services to other industries such as fine chemical production facilities and manufacturing integrated piping systems.