On July 6, the sulfuric acid market in Yunnan maintained stable operation. As of now, the factory price of 98% of smelted acid in the Yunnan market is 230-280 yuan/ton. This week, some units in the Huize Acid Plant in the area were overhauled, and the inventory of the acid plant was low, but the overall impact was not significant. Recently, the downstream phosphate fertilizer export market has shown signs of improvement. The demand for sulfuric acid is stable. Just after purchasing, the acid factory supplies goods smoothly. The overall change in supply and demand in the region is not obvious, maintaining a weak balance, and the short-term sour prices are in a dilemma.