From August 18 to 19, the 25th China Chlor Alkali Forum was held in Kunming, attended by more than 400 representatives from chlor alkali and upstream and downstream industries. The forum has 26 keynote speeches. Zhang Wenlei, the president of the association, delivered a speech at the conference. The Energy Research Institute of the National Development and Reform Commission and the Industrial Economy and Technological Economy Research Institute introduced the development status of China's traditional energy and new energy, the development status and policies of the manufacturing industry respectively; the association has made reports on "economic operation and policy environment analysis of chlor alkali industry" and "policy and technical analysis of ionic membrane electrolysis treatment of saline wastewater"; Relevant leaders of China calcium carbide industry association, China Salt Industry Association, aluminum branch of China Nonferrous Metals Industry Association and elastic floor branch of China Building Decoration Materials Association introduced the development status and prospects of upstream calcium carbide, salt industry, downstream alumina and elastic floor industries respectively. The meeting also heard reports on the market analysis of caustic soda and PVC, the development status and prospects of major chlorine consuming products in the chlor alkali industry, the international market analysis of vinyl chloride products, the operation of PVC futures and the listing progress of caustic soda futures, the reports on the development strategies and experiences of Tianjin Bohai Chemical, YibinTianyuan and other enterprises, and the new technologies, new equipment Presentation of new products.