On December 16th, Shandong Jincheng Chemical Group Co., Ltd. adjusted the price of its sulfuric acid by 25 yuan per ton, with a price of 920 yuan per ton for 98% sulfuric acid, and its annual production capacity of 250,000 tons/year is shut down for maintenance. PriceSeek assessed the sulfuric acid, giving it a negative rating of -1. The spot price of sulfuric acid was adjusted by 25 yuan per ton to 920 yuan per ton, directly reflecting the weakness in market demand and downward pressure on prices. Although the halt in production and maintenance operations reduced the supply by approximately 250,000 tons/year, theoretically this might provide support, but the price decline indicates that demand deficiency has dominated the market sentiment, overall acting as a bearish factor for the spot price. The rating is -1.0 (generally bearish) because the price decrease is moderate (about a 2.7% drop), and the maintenance factor did not reverse the negative trend.