From September 23rd to 25th, the relevant standard seminar organized by CCAIA was held in Kunming, Yunnan, attracting 49 representatives from Xinjiang Tianye, Qingdao Haiwan, Shaanxi Beiyuan, Tianjin Bohua, Tangshan Sanyou, Shanghai Chlor Alkali, Befar Group, Ordos Chlor Alkali, Inner Mongolia Junzheng, Dadi Salt Chemical, Hangjin Jinxi, Kunming Yunneng, Cangzhou Julong, Hengyang Jiantao, Fujian Huanyang, Shandong Sanyue, Jiangsu Haixing, Dongying Huatai, Wudi Xinyue, Shida Shenghua and Shandong Zhonghai among others. The meeting was chaired by Zhang Xin, Vice President of CCAIA. Wang Li, Director of the Research Department, and Feng Lei, Director of the Standardization Committee, respectively introduced the contents of "Accounting Method for Water and Waste Residue of Chlorohydrin-based ECH" (draft), "Accounting Method for Water and Waste Residue of Chlorohydrin-based Epoxy Propane" (draft), "Application Standard for Production of Ionic Membrane Caustic Soda with ECH Waste Salt as Raw Material " (draft), "Application Standard for Production of Ionic Membrane Caustic Soda with Epoxy Resin Waste Salt as Raw Material " (draft), and "General Principles for Preparation and Application Standard for Production of Ionic Membrane Caustic Soda with Waste Salt as Raw Material " (draft for soliciting opinions). The attendees had a thorough discussion around the content of the standard draft and the draft for soliciting opinions, putting forward many targeted opinions and suggestions during the discussion. Finally, the meeting also discussed the next steps, with the preparation of standards arranged and deployed.