1、 Price trend

The price of caustic soda is weak this month. At the beginning of the month, the average market price was 628 yuan/ton, and at the end of the month, the average market price was 620 yuan/ton, a decrease of 1.27% and a year-on-year decrease of 29.94%. On May 28th, the Business Society Chlor Alkali Index was 748 points, an increase of 2 points from yesterday, a decrease of 64.85% from the highest point of 2128 points during the cycle (2021-10-24), and an increase of 5.80% from the lowest point of 707 points on February 27th, 2026. (Note: The cycle refers to the period from December 1, 2011 to present)
2、 Market analysis
According to the commodity analysis system of Shengyi Society, the price of caustic soda has been running weakly this month. The price of caustic soda in Shandong region is around 560-650 yuan/ton in the mainstream market of 32% ion-exchange membrane alkali. The price of caustic soda in Zhejiang region is stable, and the price of 32% ion-exchange membrane alkali delivered to Xiaoshan mainstream market is around 850-900 yuan/ton. The price of caustic soda in Inner Mongolia region is stable, and the mainstream market price of 32% ion-exchange membrane alkali is around 2000-2050 yuan/ton (converted to 100%). In May, the caustic soda enterprise underwent maintenance, but due to the large inventory of caustic soda, it was not obvious for the enterprise to clear the inventory. In terms of downstream demand, the terminal orders of industries such as printing and dyeing, chemical fiber, and water treatment are poor, and market demand continues to be weak. Downstream enterprises tend to adopt a wait-and-see attitude and a low price wait-and-see attitude, resulting in insufficient demand and only maintaining rigid procurement, leading to low transaction activity. Enterprise shipments are generally average.
Business analysts believe that recently, the price of caustic soda has been weak and the domestic downstream market has been purchasing on demand, and there has been no substantial improvement in demand. Caustic soda enterprises still face significant inventory pressure and downstream resistance. In June, the industry maintenance is still intensive, but the early shutdown enterprises have started construction, and there is no particularly favorable supply situation. Downstream procurement is mainly based on demand, and the comprehensive supply-demand game predicts that caustic soda may continue to maintain a weak operating market in the later stage, depending on downstream market demand.