Sinohydro Bureau 4

Sinohydro Bureau 4 Co., Ltd. (abbreviated as: Sinohydro Bureau 4) was established in October 1958, affiliated with the Fortune Global 500 enterprise - PowerChina Group. The registered capital is 1.87 billion yuan, total assets are 24.892 billion yuan, with 17 functional departments at headquarters, 10 directly affiliated secondary units, 11 wholly-owned subsidiaries, and 1 holding company, employing over 8,000 staff. The enterprise is a comprehensive large-scale central enterprise serving global energy and infrastructure construction, integrating investment and financing, survey and design, manufacturing, operation management, and general construction contracting at the special grade level. Its technical level ranks world-class or leading in areas such as excavation and support of high and steep slopes, concrete dam construction, installation of hydraulic turbines, foundation treatment, fabrication and installation of metal structures, water conveyance aqueducts, shield tunneling, tunnel construction, equipment manufacturing, and installation and operation of large cable crane groups. It holds national Grade A qualification for engineering surveying, special grade for general contracting of water conservancy and hydropower engineering, first grade for general contracting of municipal public works and building engineering, and first grade for professional contracting of steel structures, power transmission and transformation, hoisting, and foundation works. The enterprise has undertaken over 100 pumped-storage power station projects including the Three Gorges Water Control Project, Xiaowan Hydropower Station, Laxiwa Hydropower Station, Gongboxia Hydropower Station, Huangdeng Hydropower Station, and Baihetan Hydropower Station, with a total installed capacity of nearly 35 million kilowatts, making outstanding contributions to the development of China's energy industry. At the current stage, the enterprise has formed a dual-market expansion pattern of domestic and international markets, with the five business segments of water conservancy and hydropower, infrastructure, rail transit, overseas, and investment and financing as the core for diversified and coordinated development. The projects constructed have successively won national and industry important awards such as the "Luban Prize", "Zhan Tianyou Prize", and "National Quality Project Gold Award", and have obtained over 100 national and provincial (ministerial) level scientific and technological achievement awards.