Global Mannheim potassium sulfate market size was valued at USD 2.15 billion in 2024. The market is projected to grow from USD 2.32 billion in 2025 to USD 3.48 billion by 2032, exhibiting a CAGR of 5.2% during the forecast period. This expansion is driven by increasing demand for chloride-free potassium fertilizers in horticulture, industrial applications, and specialty agriculture sectors worldwide.