除牙科材料外，会议还通过了20余项与汞管理相关的补充决议，包括限制在化妆品、小型金矿开采 等领域继续使用汞。报道称，这些措施的共同目标，是在全球范围内逐步消除这一有毒元素的使用和排 放。 在会议讨论阶段，各方对何时彻底淘汰含汞牙科材料曾有争议。非洲国家主张将禁令完全生效时间 定在2030年，以尽快终止含汞产品的生产与流通，但部分国家认为时间过于仓促，最终多方决定将最后 期限定为2034年。 《关于汞的水俣公约》缔约方大会于7日在瑞士日内瓦正式闭幕，包括中国在内的全球150多个国家 在会上一致同意将逐步禁止含汞的牙科材料，以减少汞污染、保护公众健康。 据法新社报道，含汞材料长期被用于牙齿修复，因价格低廉、易于塑形在全球广泛使用，但其主要 成分汞可通过蒸气、食物链或水体进入人体。汞排放还会形成持久污染，1956 年，含汞污水引发的日 本水俣病被正式确诊，促使国际社会高度重视含汞物质的危害性。牙科汞合金在全球已有超过175年的 使用历史。此次决议意味着，到2034年，这种含汞补牙材料将彻底退出历史舞台。大会通过的决议认 为，牙科领域虽然只是全球汞使用量的一小部分，但由于其直接与人体接触，因此各缔约方决定将在未 来1 ...

【环球时报综合报道】《关于汞的水俣公约》缔约方大会于7日在瑞士日内瓦正式闭幕，包括中国在内 的全球150多个国家在会上一致同意将逐步禁止含汞的牙科材料，以减少汞污染、保护公众健康。 据法新社报道，含汞材料长期被用于牙齿修复，因价格低廉、易于塑形在全球广泛使用，但其主要成分 汞可通过蒸气、食物链或水体进入人体。汞排放还会形成持久污染，1956 年，含汞污水引发的日本水 俣病被正式确诊，促使国际社会高度重视含汞物质的危害性。牙科汞合金在全球已有超过175年的使用 历史。此次决议意味着，到2034年，这种含汞补牙材料将彻底退出历史舞台。大会通过的决议认为，牙 科领域虽然只是全球汞使用量的一小部分，但由于其直接与人体接触，因此各缔约方决定将在未来10年 内逐步停止生产、进出口以及在临床中使用牙科汞合金。 在会议讨论阶段，各方对何时彻底淘汰含汞牙科材料曾有争议。非洲国家主张将禁令完全生效时间定在 2030年，以尽快终止含汞产品的生产与流通，但部分国家认为时间过于仓促，最终多方决定将最后期限 定为2034年。 除牙科材料外，会议还通过了20余项与汞管理相关的补充决议，包括限制在化妆品、小型金矿开采等领 域继续使用汞。报道 ...

Core Viewpoint - The Chinese government is actively fulfilling its commitments under the Minamata Convention on Mercury, emphasizing the need for the PVC industry, particularly the acetylene method, to undergo transformation and upgrade due to environmental pressures and supply-demand imbalances [1][2][3] Group 1: Environmental Pressure - The Minamata Convention, effective since August 16, 2017, aims to control and reduce mercury emissions, with the acetylene method for PVC production using mercury chloride as a catalyst, accounting for approximately 60% of national mercury usage [1] - The deadline for the complete ban on primary mercury mining is approaching in 2032, posing a risk of forced exit for acetylene method PVC companies that fail to upgrade to mercury-free technologies [1] - The acetylene method is characterized by high energy consumption, requiring 8,500 kWh of electricity to produce one ton of PVC, and has been listed in the "High Pollution Process Elimination Directory" by the National Development and Reform Commission, mandating a 50% capacity replacement by 2027 [1] Group 2: Supply-Demand Imbalance - The PVC industry has been facing low profit margins due to supply-demand imbalances, exacerbated by the bundling of caustic soda profits, leading to high PVC inventory levels, which increased by 24.48% year-on-year as of October 2025 [2] - The real estate market's deep adjustments have significantly impacted demand, resulting in low PVC prices, while acetylene method producers have been suffering losses due to low calcium carbide prices [2] - New PVC production capacity is expected to add 2.5 to 3.5 million tons in 2023, bringing total domestic capacity to around 30 million tons, further worsening the supply-demand imbalance [2] Group 3: Industry Restructuring - The PVC industry is experiencing a squeeze effect, with the ethylene method gradually capturing market share from the acetylene method, which has historically dominated with 70-80% of total capacity [3] - The cost structure of the ethylene method is more favorable in the current low international oil price environment, leading to a significant increase in new capacity for this method, which is expected to account for over 70% of new capacity in 2023 [3] - By 2030, the ethylene method's capacity share is projected to rise to around 40%, intensifying competition for acetylene method PVC producers [3]

Group 1 - The core point of the article highlights the urgent need for the calcium carbide method PVC industry to undergo transformation and upgrade due to environmental pressures and supply-demand imbalances [1][2][3] Group 2 - The Minamata Convention on Mercury, effective since August 16, 2017, aims to control and reduce mercury emissions, with the calcium carbide method PVC industry being a key area of focus [1] - The calcium carbide method uses mercury chloride as a catalyst, accounting for approximately 60% of the total mercury consumption in the country, facing mandatory upgrades to avoid forced exit as the 2032 deadline for banning native mercury mining approaches [1] - The National Development and Reform Commission has listed the calcium carbide method PVC in the "High Pollution Process Elimination Directory," requiring a 50% capacity replacement by 2027 [1] - PVC industry has been suffering from low profits due to supply-demand imbalances, with domestic PVC social inventory increasing by 24.48% year-on-year as of October 2025 [2] - The real estate market's deep adjustment has led to significant supply-demand imbalances, causing PVC prices to remain low [2] - New PVC production capacity is expected to reach 2.5 to 3.5 million tons this year, bringing total domestic PVC capacity to around 30 million tons, further exacerbating the supply-demand imbalance [2] - The market is experiencing a squeezing effect, with the ethylene method gradually taking market share from the calcium carbide method, which has historically dominated the PVC industry [3] - Ethylene method PVC production is expected to account for about 40% of total capacity by 2030, driven by cost advantages and environmental pressures [3] - The combination of environmental regulations, supply-demand imbalances, and competitive pressures will accelerate the elimination of inefficient capacities in the calcium carbide method PVC industry, pushing towards a more environmentally friendly and ethylene-based production structure [3]