China Tianrui Group Cement Company Limited is an investment holding company that manufactures and sells cement, clinker, and limestone aggregates in the People's Republic of China. It also offers sand and gravel aggregates, concrete, packing bags, construction materials, cement packaging, and slag powder, and engages in limestone mining and sales. Its products are sold under the Tianrui brand. Founded in 2000, the company is based in Ruzhou, the People's Republic of China, and is a subsidiary of Yu Kuo Company Limited.