March 23 (Reuters) - On March 23, driven by increased market demand and rising raw material costs, the quoted price for industrial-grade sodium metabisulfite (96.5% content) in the Shanghai market reached 2,600 yuan per ton, marking an increase of 100 yuan per ton. Inventory levels stand at approximately 20%. Chempricehub's analysis of sodium metabisulfite assigns a bullish-bearish score of +1.5. The report indicates that spot prices for sodium metabisulfite are being pushed higher by growing market demand and increasing raw material costs, with the quoted price rising by 100 yuan per ton to 2,600 yuan per ton. Inventory levels are only around 20%, indicating tight supply. The growth in demand and rising costs directly benefit spot prices, while low inventory further supports the upward trend. However, the price increase has not yet reached extreme levels, resulting in a moderately bullish score (+1.5).