China Petroleum & Chemical Refining and Chemical Engineering (Group) Co., Ltd. is mainly engaged in design, procurement and construction general contracting business. The company operates through four business units. The Design, Consulting and Technology Licensing Business Department is engaged in providing design, consulting, development, feasibility study and compliance certification services to oil refining and chemical industries. The general contracting department is engaged in providing comprehensive engineering, procurement, construction, maintenance and project management services. The Construction Business Department is engaged in providing new construction, renovation, expansion, renovation and maintenance services, as well as lifting and transportation services for large-scale equipment for construction projects. The equipment Manufacturing Business Department is engaged in the design, development, manufacture and sale of equipment and parts needed in facilities such as oil refining and chemical industry.