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Established on January 8, 2003, with a registered capital of RMB 225.57 million, Tianjin Tianhai High Pressure Container Co., Ltd. (hereinafter TTHP) is a joint venture specializing in the production of high-pressure seamless cylinders. It is co-invested by Beijing Tianhai Industry Co., Ltd. (holding 55% equity) and Tianjin Dawufeng Investment Co., Ltd. (holding 45% equity).

Located at No. 268, Jinbin Road, Tianjin Pilot Free Trade Zone (Tianjin Port Free Trade Zone), TTHP covers a total area of 100,000 m². Construction began on April 29, 2003, and production commenced on November 27, 2003. TTHP operates 3 production lines for small- and medium-sized high-pressure seamless cylinders, 3 lines for large-sized high-pressure seamless cylinders, and 1 line for grinding cylinders with an annual production capacity of 1 million cylinders. Key products of TTHP include seamless steel cylinders, vehicle-used CNG steel cylinders, seamless steel gas storage pressure vessels, and electronic specialty gas cylinders, widely used in chemical, fire protection, petroleum, construction, metallurgy, transportation, and other industries.

TTHP holds B1-, B3- and A2-level pressurevessel manufacturing qualifications and ClassII medicaldevice production license. It has obtained certifications from classification societies including CCS(China), DNV(Norway), GL (Germany), ABS (USA), BV (France), KR (Korea), UK LR(UK), RINA (Italy) and RMRS (Russia) as well as product manufacturing approvals from DOT (USA), TC (Canada), KGS (Korea), TÜV (Germany), BV (France), and LR (UK). It is also certified under ISO 9001 and IATF 16949 quality management systems.

TTHP has been recognized as a National High-Tech Enterprise, an Innovative SME, and a Tianjin Specialized and Sophisticated "Little Giant" Enterprise. Its products have been exported to over 30 countries and regions across five continents, with exports accounting for 71% of the total.