Sinotruk (Hong Kong) Limited, an investment holding company, engages in the research, development, manufacture, and sale of heavy-duty trucks (HDT), medium-heavy duty trucks, light duty trucks (LDT), buses, and related parts and components in Mainland China and internationally. The company operates through four segments: Heavy Duty Trucks, Light Duty Trucks and Others, Engines, and Finance. It offers specialty vehicles; industrial and construction machinery engines; and HDT key assemblies; parts and components, such as gearboxes and various types of casting and forging, as well as cabins, axles, and steel frames. The company provides axle and transmission parts and truck refitting services; deposit taking, borrowings, bank bills discounting, auto and supply chain financing, issue of bills, entrusted loans and investment, and customer credit services; loans; and consultation and strategic planning services.