Caterpillar (Qingzhou) Ltd. (CQL), formerly Shandong SEM Machinery Co., Ltd Machinery Co., Ltd. was founded in 1958 and reorganized as a shareholder company in 2003. In 2008, Caterpillar(Qingzhou ) Ltd. became a full acquisition of Caterpillar and today is an important Caterpillar brand supporting the fast growing China customer base. Caterpillar (Qingzhou ) Ltd. is located in Qingzhou City, in eastern Shandong province, which is easily accessible by major highways. 

 At a wholly-owned subsidiary of Caterpillar, CQL will produce both SEM brand products including wheel loaders, soil compactors, motor graders, track type tractor, landfill compactors & Pavement Machinery components, work tools and “Cat 950 GC”. SEM brand has become one of the machines brands of Caterpillar to support the increasing customers in China construction and engineering industry. To enhance the competitive position in China and other growing markets, Caterpillar has increased the investment and expansion at CQL facility since 2009.  With the support of local government, Caterpillar Qingzhou has acquired the land near the facility to expand capacity of product lines and other key components. In Qingdao, Caterpillar has made huge investment to build the world-class research and development center which has attracted the world’s top researchers and CQL research and development team to continuously develop innovative products according to market demand to meet the requirements of different customers