According to data, national caustic soda production in August reached 3.6356 million tons, a month-on-month increase of 1.46%.

As of August 28, 2025, inventory at sample enterprises with a fixed liquid caustic soda production capacity of 200,000 tons or more nationwide stood at 379,600 tons (wet tons), a 4.25% decrease from the previous month and a 28.84% increase from the previous year.

As an integrated internet platform providing benchmark prices, on September 1, the benchmark price of caustic soda on SunSirs was 884.00 RMB/ton, a 2.67% increase from the beginning of the previous month (861.00 RMB/ton).

Application of SunSirs Benchmark Pricing：

Traders can price spot and contract transactions based on the pricing principle of agreed markup and pricing formula (Transaction price=SunSirs price + Markup).

If you have any inquiries or purchasing needs, please feel free to contact SunSirs with support@sunsirs.com.