Core Viewpoint - The green transformation of the phosphogypsum industry focuses on comprehensive utilization as a core challenge, with discussions at the 19th Gypsum Industry Technology Exchange Conference exploring new development paths that balance ecological, economic, and social benefits [1] Group 1: Demand and Supply Imbalance - Phosphogypsum is a byproduct of sulfuric acid wet-process phosphoric acid production, with approximately 4 to 5 tons generated for every ton of phosphoric acid produced [2] - In 2024, China's phosphogypsum production is expected to reach about 86 million tons, a year-on-year increase of 6.2%, with future annual production projected to remain above 80 million tons [2] - 80% of phosphogypsum is produced in Hubei, Yunnan, and Guizhou, with Hubei being the largest contributor [2] - The industry faces challenges due to land resource constraints and environmental pollution risks, leading to a comprehensive utilization rate of less than 50% [2] Group 2: Multi-faceted Solutions - China is accelerating the resolution of the "world-class challenge" of phosphogypsum utilization under the dual drivers of carbon neutrality goals and circular economy strategies [3] - The comprehensive utilization of phosphogypsum has developed a diversified approach, with cement retarders and gypsum building materials accounting for 31% and 28% of total utilization, respectively [3] - Ecological restoration utilization accounts for 22%, while mining filling utilization is 8%, and road construction materials utilization is 5%, which has increased by nearly 1 million tons compared to the previous year [3] Group 3: Regional Utilization Strategies - Different provinces are focusing on differentiated utilization strategies based on their specific conditions, with Hubei emphasizing gypsum building materials and road base materials [4] - Yunnan focuses on ecological restoration, while Guizhou is concentrating on mining filling and gypsum building materials, with a significant project expected to consume nearly 600,000 tons of phosphogypsum in 2024 [3][4] Group 4: Industry Development Potential - Despite market demand contraction, the gypsum industry has significant development potential, with urban renewal and the renovation of old neighborhoods creating new opportunities for green low-carbon gypsum building materials [4] - The high-value utilization of industrial byproduct gypsum in non-building material fields is also experiencing rapid growth, providing differentiated development paths for the industry [4] Group 5: Collaborative Efforts for Green Transformation - The gypsum industry is seen as a key support for "waste-free cities" and green buildings, with suggestions for strengthening collaborative efforts in key technologies and expanding into high-value product areas [5] - Recommendations include promoting collaboration between gypsum building material companies and phosphate fertilizer companies, enhancing funding and technology connections, and fostering clean production and intelligent transformation [6]