On June 17, the sulfuric acid market in Henan increased within a narrow range. As of now, the ex-factory transaction price of 98% of smelted acid in Henan is between 100 and 200 yuan/ton. This week, some acid plants in the area were overhauled, and downstream companies have stocked up in the early stage. Recently, the supply of sulfuric acid has continued to be tight, and the acid price has increased slightly by 30 yuan/ton. Acid factories in the zone have sufficient orders, spot sulfuric acid resources remain tight, and acid prices are gradually increasing. Downstream chemical fertilizers, titanium dioxide and other industries mostly maintain urgent needs for procurement, with strong short-term supply and demand support, and prices maintain an upward trend.