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Zhejiang Chang'an Renheng Technology Co., Ltd. is a Chinese enterprise mainly engaged in the development, production, and sales of bentonite fine chemicals. It was listed on the Hong Kong Stock Exchange in 2015 (stock code: 08139) and is the first company in Zhejiang Province to be listed in Hong Kong through the "full circulation" of H-shares. Our main products include papermaking chemicals, bentonite for metallurgical balls, calcium based clay, and other products. Our company has also established a water treatment agent project in Changxing County, Zhejiang Province and an organic bentonite project in Yangyuan City, Hebei Province. We also engage in wholesale and retail equipment business through its subsidiaries.