On January 4, the ex-factory average price of Mannheim 52% powder potassium sulfate was 3,900–4,000 yuan/ton, down by 50 yuan/ton. Market procurement remained primarily driven by essential restocking, and the overall trading atmosphere continued to be subdued. PriceSeek analysis of potassium sulfate, with a long-short score: -1. The ex-factory average price of Mannheim 52% powder potassium sulfate fell by 50 yuan/ton to 3,850–3,950 yuan/ton. Market procurement was mainly driven by essential restocking, and the trading atmosphere remained subdued, indicating persistently weak demand and increasing inventory pressure, which significantly weighed on spot prices and may hinder subsequent price recovery. Combined with recent data on the main futures contracts, potassium sulfate futures prices have experienced heightened volatility. Against the backdrop of weak spot fundamentals, bearish sentiment in the futures market has intensified, with an increase in short positions, suggesting that prices are expected to face downward pressure in the short term. Therefore, based on the price decline and weak demand, the score is -1 (generally bearish).