Zhejiang Chang'an Renheng Technology Co., Ltd., together with its subsidiaries, develops, manufactures, and sells bentonite fine chemicals in the People's Republic of China. It offers papermaking chemicals; inorganic gels; bentonite products for metallurgy pellets; quality calcium-bentonite products; organic bentonite products; and other chemicals, such as flocculating agents that are primarily used in the coating preparation industry. The company is also involved in the mining and processing of clay; and wholesale and retail of chemicals and equipment.

The company was formerly known as Changxing Renheng Fine Bentonite Co., Ltd. and changed its name to Zhejiang Chang'an Renheng Technology Co., Ltd. in December 2008.