Beijing Tianhai Industry Co., Ltd. (hereinafter referred to as "Tianhai Industry") is a key subsidiary of Beijing Jingcheng Machinery Electric Holding Co., Ltd., under Beijing Jingcheng Machinery Electric Co., Ltd. (abbreviated as Jingcheng Stock, H-share stock code 00187, A-share stock code 600860). It is a group company with several professional gas storage and transportation equipment production bases (Tianhai Hydrogen Energy, Shanghai Tianhai, Tianjin Tianhai, Kuancheng Tianhai, Minghui Tianhai, Jiangsu Tianhai) and one American company. Tianhai Industry and its subsidiaries hold design and production qualifications for A2 high-pressure vessels, B1 seamless gas cylinders, B2 welded gas cylinders, B3 fiber-wound gas cylinders, B4 low-temperature insulated gas cylinders, B5 dissolved acetylene gas cylinders, C2 tank containers, and D medium and low-pressure vessels. They can produce over 800 varieties and specifications of products, including seamless steel gas cylinders, glass fiber hoop-wound gas cylinders, carbon fiber fully-wound composite gas cylinders (including Type III and Type IV cylinders, and respirators), asbestos-free acetylene cylinders, welded gas cylinders, welded insulated gas cylinders (including those for vehicles), fixed pressure vessels, low-temperature tank containers, marine tanks, CNG/LNG/H2 vehicle gas supply systems, and gas filling stations, widely used in industries such as automotive, chemical, firefighting, medical, petroleum, energy, urban construction, food, metallurgy, machinery, and electronics.

Tianhai Industry has consistently adhered to the corporate spirit of "integrity, dedication, learning, innovation, and aiming for excellence," establishing a strong corporate image with safe and reliable products and high-quality services. It has successively received honors such as Top 100 Chinese Enterprises, Top Ten Foreign-invested Enterprises in Beijing, Beijing High-tech Enterprise, Leading Enterprise in China's Metal Pressure Vessel Manufacturing Industry, National "May 1st Labor Award," "Beijing Specialized, High-end and Innovation-driven 'Small Giant' Enterprise," and National "Specialized, High-end and Innovation-driven Small Giant" Enterprise.