China Sodium Bisulphate Market Softens Further in May 2026, here is why

China’s Sodium Bisulphate market remained under pressure during the first half of May 2026 as comfortable inventories, stable operating rates, and subdued export demand continued weighing on FOB Qingdao offers. Producers maintained regular production levels amid sufficient feedstock availability and balanced domestic supply conditions, while buyers largely continued cautious hand-to-mouth procurement strategies. Demand from municipal wastewater-treatment activities provided routine support, although it was insufficient to offset weaker export enquiries from Southeast Asia and cautious purchasing by cleaning-product manufacturers. Feedstock costs for sulphuric acid and soda ash remained broadly stable, limiting production-cost volatility and supporting steady operating margins for suppliers. Coastal warehouse inventories also stayed comfortable, further reducing pressure on sellers to restrict cargo availability. Looking ahead, the Sodium Bisulphate market is expected to remain balanced-to-soft through late May, although seasonal water-treatment demand and any rise in sulphur-related feedstock costs could provide moderate pricing support later in the quarter.