Tongyu Heavy Industry Co., Ltd. is a national high-tech enterprise located in the Dezhou (Yucheng) National High-Tech Industrial Development Zone in Shandong Province. It was listed on the Growth Enterprise Market of the Shenzhen Stock Exchange on March 8, 2011 (Stock Abbreviation: Tongyu Heavy Industry, Stock Code: 300185).In August 2025, the company entered a "new era of state control," officially becoming a state-controlled listed company under the State-owned Assets Supervision and Administration Commission of Shandong Province.As of the end of June 2025, the company has total assets of RMB 15.075 billion and net assets of RMB 6.981 billion. The company has long been engaged in the research ， development, manufacturing, and sales of large castings and forgings, structural components, and complete sets of equipment. It has established close collaborations with renowned research institutions and universities, including the Institute of Metal Research of the Chinese Academy of Sciences, Tsinghua Sichuan Energy Internet Research Institute, University of Science and Technology Beijing, Shandong University, and Yanshan University，boasting strong technical strength and excellent product quality.The company has successively obtained the manufacturing license for pressure vessels and certification approvals from nine international classification societies, including CCS, BV, DNV, RINA, ABS, NK, LR, KR, and RS.It has now formed a complete industrial chain integrating smelting/electroslag remelting, casting/forging/welding, heat treatment, machining, and design and manufacturing of large complete sets of equipment.As an important large-scale comprehensive research ， development and manufacturing platform for industrial equipment in China, it can provide large-scale castings and forgings as well as core components for industries such as energy and power (including wind power, hydropower, thermal power, and nuclear power), mining, petrochemicals, shipping, marine engineering equipment, metallurgy, aerospace, and cement.Relying on its outstanding comprehensive strength, the company has successively won nearly 100 honorary titles, including National-Level High-Tech Enterprise, National-Level Single Champion Product in Manufacturing Industry, National-Level Green Factory, National Intellectual Property Advantage Enterprise, Pilot Enterprise for Intellectual Property Application of Industrial Enterprises under the Ministry of Industry and Information Technology, Excellent Enterprise in China's Machinery Industry, Shandong Provincial Environmental Protection-Friendly Enterprise, and Shandong Provincial Advanced Energy-Saving Enterprise.The "Hidden Champions" series of CCTV's Topics in Focus has conducted in-depth coverage of the company's dedication to the manufacturing industry and its commitment to innovative in research and development.
       Relying on multiple national and provincial-level research and development platforms, such as the National Enterprise Technology Center, Shandong Provincial Industrial Design Center, and Shandong Provincial Engineering Research Center, the company has continuously increased its investment in both software and hardware for technological innovation. It has achieved significant results in the research and development of core components for high-end equipment, including: the successful development of low-speed large gear forgings for multi-axis air compressors, DN3000 super-large ductile iron pipe molds, 9MW forged offshore wind power main shafts, high-strength and high-toughness cast wind turbine main shafts, and fully integrated fiber magnet yoke rings. The overall technical specifications of these products have reached internationally advanced levels. In 2024, the company successfully developed its first set of 14MW large offshore wind power rotor house products. Its marine transmission shaft products were recognized as provincial-level manufacturing single champion products, and it became the fourth supplier of nuclear power steam turbine outer cylinder cast steel components in China. These achievements fully demonstrate the company's robust research and development capabilities and strong competitiveness in the industry.
       In the future, the company will continue to promote high-quality and sustainable development, earnestly fulfill its social responsibilities, actively undertake the dual missions of leading the green development of the industry and supporting the internationalization of China's high-end equipment, and contribute Tongyu's strength to the global expansion of China's high-end equipment manufacturing industry and the achievement of the "dual carbon" goals.