The company is a Class A supplier of PetroChina, a qualified supplier of Sinopec, and a shortlisted supplier of valves for CNOOC. It is a member of China’s city gas and five major power companies, and a qualified supplier of China National Nuclear Corporation, China Coal Group, and Shenhua Group. The company pursues excellent quality and scientific management has achieved results. Over the years, the company’s product quality has been stable for a long time, and all national and local quality supervision inspections have been qualified. There have been no quality accidents, no major customer complaints, and customers are highly satisfied with the product quality.