The company is an investment holding enterprise founded in 1993 and listed on the Shenzhen Stock Exchange in 1994. It has 8 wholly-owned and controlled companies. It is mainly engaged in the production and operation of clean and environmental protection engineering and equipment, high-voltage porcelain insulators for power transmission and transformation, needle roller bearings, various types of integrated opto-mechatronic surveying and mapping instruments, and various abrasives, etc., forming a pattern where “clean and environmentally friendly” and “porcelain insulators” are the two main businesses, and various business industries such as precision bearings, abrasives, and precision instruments coexist. The company's clean and environmental protection equipment and engineering: air cleaning equipment and systems, biosafety equipment and systems, energy saving and environmental protection equipment and systems, gas purification equipment and systems, high voltage porcelain insulators: circuit breaker porcelain sets, transformer porcelain sleeves, lightning arrester porcelain sleeves, capacitor porcelain sleeves, GIS/HGIS combination electrical porcelain sleeves, cable terminal porcelain bearings, precision bearings: needle roller bearings, cylindrical roller bearings, unidirectional bearings, roller needle roller bearings and rolling bodies. Honors received by the company: National Science and Technology Conference Award, National Silver Award, Second Prize for Science and Technology Progress of the Ministry of Electronics, etc.