Types segmentation offers a nuanced view of product differentiation. The market is principally divided into anhydrous aluminium sulphate, hydrated aluminium sulphate (commonly sold as alum), and mixed‑salt formulations that combine sulphate with other coagulants. Anhydrous forms, representing roughly 35 % of total shipments, command higher margins due to lower water content and suitability for bulk industrial dosing. Hydrated alum, the most widely used variant at about 55 %, benefits from ease of handling and solubility, making it the preferred choice in water‑treatment and paper sectors. Mixed‑salt blends, accounting for the remaining 10 %, are engineered for niche applications requiring synergistic coagulation performance, such as high‑turbidity mining effluents. Understanding these sub‑type contributions is essential for accurate market taxonomy, as pricing dynamics, logistics, and end‑use compatibility differ markedly across the type spectrum.