The company was founded in 1991 and is a well-known investment enterprise in Hong Kong, Macao and Taiwan that develops and manufactures water supply and drainage valves, industrial valves, automatic control systems, and environmental protection equipment. In April 2022, the company was successfully listed on the GEM. The main business is R&D, design, production and sales of water-saving valves. The main products include valve products such as butterfly valves, gate valves, control valves, check valves, etc., and other ancillary products. The company has successively won many awards such as “China Urban Water Supply Association Recommended Product”, “Ministry of Construction Science and Technology Promotion Project”, “Shanghai Patent Demonstration Enterprise”, “CNAS Laboratory Accreditation Certificate”, and “China Industry Awards Commendation Award”; the subsidiary Shanghai Guanlong Valve Automatic Control Co., Ltd. has won the title of a national specialized and innovative “Little Giant” enterprise, “Shanghai Enterprise Technology Center”, Shanghai “High-tech Enterprise” and “Shanghai Contract-abiding and Credit-abiding Enterprise”.