On January 14th, the mainstream ex-factory price of 52% powdered potassium sulfate rose to 3,950-4,150 yuan per ton, marking an increase of 50 yuan per ton. This price surge is primarily driven by significant rises in the costs of raw materials, including potassium chloride and sulfuric acid. Additionally, the market continues to experience a tight supply of goods, contributing to the ongoing upward trend in potassium sulfate prices.