On November 25th, a seminar on the preparation of the Technical and Economic Evaluation Report on Mercury-free Catalysts in the Industry was held in Beijing. Zhang Xin, the vice president of CCAIA, Zhang Shoute, the deputy secretary-general, and Li Qiong, the director of the office, attended the meeting. Zhou Xianhui, the president of the China Chemical Industry Environmental Protection Association, Wu Gang, the executive deputy secretary-general, Shao Dingding, the head of the Fourth Division of the Compliance Department of the Foreign Economic Cooperation Center of the Ministry of Ecology and Environment, and Yang Jini, a senior project supervisor, also attended the meeting. Representatives of key production enterprises such as Xinjiang Tianye, Xinjiang Zhongtai, Shaanxi Beiyuan, Shaanxi Jintai, Inner Mongolia Erdos Electric Power and Metallurgy, Sinochem Holdings, and Shandong Xinfa attended the meeting. Vice president Zhang Xin of CCAIA introduced the preparation situation and key contents of the evaluation report. The representatives present at the meeting had a full exchange and discussion on the report contents and the situation of the research and development, application and evaluation of mercury-free catalysts carried out by their respective enterprises. Director Shao Dingding and President Zhou Xianhui put forward opinions and suggestions from the aspects of the requirements of convention negotiations and the key points of the next step of work. The meeting reached a consensus on the further modification and improvement of the report contents. The industry will make greater efforts on relevant work for the Sixth Conference of the Parties to the Mercury Convention in 2025.