China Yuchai International Ltd is a Bermuda holding company that is a subsidiary of Singapore-based Hong Leong Asia. China Yuchai International operates through its majority-owned subsidiary Guangxi Yuchai Machinery Company, a China-based company that manufactures, assembles, and distributes diesel engines for various vehicles including trucks, buses, and cars, as well as construction and agricultural, marine, and power-generation equipment. It generates the majority of its sales from the Chinese market.