Weichai Power Co., Ltd. (OTCMKTS:WEICY) is a leading manufacturer of heavy-duty diesel engines and drivetrain components based in Weifang, Shandong Province, China. The company’s core business activities encompass the design, production and distribution of engines for commercial vehicles, construction machinery, marine vessels and power generation applications. In addition to diesel powertrains, Weichai Power offers key automotive systems such as transmissions, axles, turbochargers and hydraulic components, serving as a one-stop supplier for original equipment manufacturers (OEMs) in the transportation and industrial sectors.
Originally established in the mid-20th century as Weifang Diesel Engine Works, the company underwent corporate restructuring and adopted the Weichai Power name in the early 2000s, culminating in its public listing on the Shenzhen Stock Exchange in 2004. Under the leadership of Chairman and CEO Tan Xuguang, Weichai has pursued strategic partnerships and acquisitions to broaden its technological capabilities, including collaborations in fuel‐injection systems and clean-energy research. The company maintains research and development centers in China and Europe to support product innovation and regulatory compliance.
Weichai Power has built an extensive global distribution network, with products sold in more than 100 countries and regions across Asia, Europe, Africa and the Americas. Its marine engines are used in fishing vessels, coastal ships and offshore applications, while its power generation units are deployed in industrial, commercial and emergency backup settings. The company also supplies driveline solutions to leading tractor and agricultural machinery brands.
In recent years, Weichai has expanded into alternative energy technologies, investing in hydrogen fuel cells and electric powertrain development to address evolving emissions standards. With a vertically integrated manufacturing platform and a commitment to quality certifications such as ISO/TS 16949, the company continues to strengthen its position in both domestic and international markets.
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