Chongqing Changjiang River Moulding Material (Group) Co., Ltd. engages in the research, development, production and sales of silica, coated sand and sand cores for foundry manufacture of materials for foundry industry, sand cores for foundries, and proppant for the oil and gas industry. Its products include foundry sand, resin coated sand, sand core, reclamation system, and proppant. The company was founded in 1993 and is headquartered in Chongqing, China.