Helping build the world since 1958

Over 60 years of expertise

Caterpillar (Qingzhou) Ltd. (CQL), formerly Shandong Engineering Machinery Co., Ltd., was founded in 1958 in Qingzhou City, China, and became a wholly owned subsidiary of Caterpillar in 2008. Today, SEM is an important Caterpillar brand, offering wheel loaders, motor graders, soil compactors, dozers, and wide body dump trucks. SEM products are primarily sold through Caterpillar dealerships with dedicated SEM channels in over 100 countries and regions, including Asia Pacific, Latin America, Eurasia, and Africa and Middle East. As part of Caterpillar, SEM products are tailored for quality, reliability, and affordability.