Phosphogypsum segmentation by application reveals four primary demand drivers: agriculture, construction, cement, and environmental remediation. In agriculture, phosphogypsum is used as a soil amendment to supply calcium and sulfur, improving pH balance and crop yields; this segment accounts for roughly 45 % of total market revenue because of its extensive use in large‑scale farming across North America and China. The construction sector consumes phosphogypsum principally in gypsum board and plaster, where its sulfate content offers fire‑resistance and dimensional stability, representing about 30 % of market size. The cement industry incorporates phosphogypsum as a set‑retarding additive and filler, enhancing grindability and reducing clinker factor, representing an estimated 15 % share. Finally, environmental remediation applications—such as neutralizing acidic mine drainage and immobilizing heavy metals—are emerging, presently covering close to 10 % of the market. Together, these categories define the overall Phosphogypsum market landscape and guide strategic allocation of resources.