On January 9, the quotation for industrial-grade sodium metabisulfite (content 96.5%) in the Shanghai market was 2,300 yuan/ton, with a price increase of 50 yuan/ton, and inventory accounting for about 30%. PriceSeek's analysis of sodium metabisulfite shows a bullish-bearish score of 1. The article indicates that on January 9, the quotation for industrial-grade sodium metabisulfite in the Shanghai market rose from 2,250 yuan/ton to 2,300 yuan/ton, an increase of 2.22%, while inventory accounted for only about 30%, indicating tight supply and strong demand. This constitutes a moderate positive factor for spot prices, as the price increase directly reflects an imbalance between market supply and demand, and low inventory may further support the short-term upward price trend.