From October 30 to November 3, the fifth Conference of the Parties to the Minamata Convention on Mercury was held in Geneva, Switzerland. The delegation of the Chinese government was headed by Ding Ding, Deputy Director of the Foreign Environmental Cooperation Center of the Ministry of Ecology and Environment, and Mu Ying, Second-level Inspector of the Energy Conservation Department of the Ministry of Industry and Information Technology, as the deputy head of the delegation. The delegation was composed of relevant personnel from the Solid Waste Bureau of the Ministry of Ecology and Environment, the Raw Materials Industry Bureau of the Ministry of Industry and Information Technology, the Foreign Environmental Cooperation Center of the Ministry of Ecology and Environment, the Solid Waste Technology Center, the State Administration for Market Regulation, and Tsinghua University. Zhang Xin, vice president of the CCAIA, attended the conference as a member of the government delegation, and at the same time, the Association organized five comrades from Xinjiang Zhongtai, Xinjiang Tianye and Shaanxi Beiyuan to participate in the whole meeting as an NGO. The meeting is mainly composed of the General Assembly, regional meetings and contact group meetings. The meeting confirmed the technical and economic feasibility of mercury-free processes for sodium methoxide, potassium methoxide, sodium ethoxide or potassium ethoxide, and the use of mercury is no longer permitted after five years. Since China is the main country for the mercury-free process for VCM and uses a large amount of mercury, the United States, Norway, the European Union and relevant international organizations are concerned about this and hope that this meeting will confirm the technical and economic feasibility of mercury-free catalysts. With the joint efforts of the Chinese government delegation, the Association and enterprises, through full communication and arduous negotiations, the proposal to confirm the technical and economic feasibility of mercury-free process for VCM was finally cancelled, and a resolution was formed to submit the technical and economic feasibility assessment report of mercury-free process for VCM to the Secretariat of the Convention by March 31, 2025, for further discussion at the next meeting of the Conference of the Parties (Geneva, Switzerland, 3-7 November 2025).