1. Huicheng Environmental Protection: provide waste catalyst treatment and disposal services for oil refining enterprises, and develop, produce and sell comprehensive utilization products of waste catalysts.
2. Wansheng Co., Ltd.: As of June 5438+February 1 2023, the company has a production capacity of more than 40,000 tons of various special amines, which are mainly used in polyurethane catalysts, electronic chemicals, daily chemicals, medicines, pesticides, petroleum additives, sterilization, mining and other industries, and is a major supplier of special amines in China.