Sinotruk Group is a leading Chinese state owned manufacturer of heavy duty trucks. Founded in 1935, Sinotruk has a long history within the commercial vehicle manufacturing industry. Since then they have grown dramatically, being listed on the Hong Kong and Shenzhen Stock Exchange and operating overseas in South American and African countries. Their product catalog consists mainly of heavy-duty trucks, dump trucks, truck heads, tractors and spare parts, sold under the Sinotruk Howo brand. Their trucks form the chassis for many Chinese made specialist vehicles and mobile cranes. Sinotruk Howo trucks have different engine configurations to meet different environmental standards.