The predecessor of Changge Longji Industrial Co., Ltd. was Changge Xinghuo Chemical Plant, which was put into operation in the mid-1970s. It specializes in the production of activated carbon, iron oxide, desulfurizer, refined desulfurizer, desulfurization catalyst, hydrolysis catalyst, dimethyl ether synthesis catalyst, dechlorination agent, deamination agent, deoxidizer, deoilizer and other series of products. After years of development, the company has become a comprehensive scientific and technological enterprise integrating manufacturing, sales and scientific research. The company has relevant professional high-tech talents, advanced inspection and testing equipment and production equipment, with independent research and development capabilities, products continue to introduce new products, and always maintain the advancement and practicality of products in the industry; and constantly optimize the application of products Process, cooperate with users to launch new practical process solutions, not only to solve problems for users, but also to create higher benefits for users.