LianDi Clean Technology, Inc., through its subsidiaries, distributes petroleum and petrochemical valves, equipment, and related services in the People's Republic of China. The company distributes unheading units for the delayed coking process; and offers systems integration, and related technical and engineering services to petroleum and petrochemical companies and other energy companies. It also develops and markets optimization software for data collection, performance analysis, and process optimization in the polymerization reaction of ethylene production.