Group 1 - The Shanghai United Property Exchange's Solid Waste Resource Trading Center aims to provide a comprehensive solution for industrial solid waste through information dissemination, transaction facilitation, and supporting services, promoting resource utilization and green development in Shanghai [1][2] - As of November 2024, 315 cities in China reported a total of 93.2 billion tons of solid waste, with general industrial solid waste accounting for 40.8% of this total, amounting to 38.0 billion tons [1] - Major types of general industrial solid waste include tailings, fly ash, coal gangue, smelting slag, and furnace slag, which together represent 62.5% of the total generated [1] Group 2 - The coal power industry generates over 600 million tons of solid waste annually, with fly ash production growing at a rate of 5% per year, and over 60% of this waste is utilized in the construction materials sector [2] - Policies supporting "waste-free city" initiatives, along with tax incentives and regional collaboration mechanisms, are driving companies to accelerate their resource transformation [2] - The establishment of the solid waste resource trading center is a practical step by the Shanghai Trading Group and Shanghai United Property Exchange to support the national "dual carbon" strategy [2][3] Group 3 - Since the trial operation began on May 15, 2023, the platform has facilitated the transaction of 359.8 million tons of solid waste, utilizing a dual-price bidding method [3] - An example of this bidding process includes the sale of gypsum by Huaneng Qinxin Power Co., which had a transfer base price of -16 yuan/ton and was ultimately sold at -6.89 yuan/ton, showcasing innovative market resource allocation [3]