ShanDong Laidong Internal Combustion Engine Co., Ltd. was founded in 1943 in Laiyang, Shandong, China. It manufactures engines for the agricultural market, including tractors and combine harvesters. In 1997, funding was provided to establish Shandong Huayuan Laidong Engine Co., Ltd. as a subsidiary. The company can manufacture about 500,000 engines annually.