The Ground Calcium Carbonate segmentation by application distinguishes five primary end‑use categories that collectively drive market volume. Paints & coatings dominate with roughly 35 % of total demand, reflecting the filler’s role in opacity, viscosity control, and cost reduction. Plastics account for about 25 %, where GCC improves stiffness, impact resistance, and surface finish in PVC, PE, and PP formulations. The paper sector contributes near 20 %, leveraging calcium carbonate for brightness, opacity, and surface smoothness in printing and writing papers. Adhesives and sealants represent approximately 12 %, utilizing GCC to modify rheology and enhance mechanical strength. The residual Other applications (including rubber, textiles, and construction materials) occupy the remaining 8 %, indicating niche but growing utilization. Each segment’s proportion aligns with its functional relevance and price sensitivity, cumulatively defining the overall market size and growth trajectory.