On May 8, Shandong Dezhou Shihua adjusted its liquid caustic soda prices. The acceptance offer for 32% ionic membrane caustic soda was raised by 20 yuan/ton to 710 yuan/ton, with actual transactions negotiable. The 400,000-ton chlor-alkali plant is operating normally. According to Chempricehub's assessment of caustic soda, the bullish/bearish rating stands at 1. On the spot side, the increase in the spot offer price by Shandong Dezhou Shihua on May 8 to 710 yuan/ton provides favorable support for spot caustic soda prices. On the futures side, the main caustic soda contract (2607) on the Zhengzhou Commodity Exchange closed at 2,136 yuan/ton on May 7, 2026, up 42 yuan/ton from the previous trading day, with high trading activity. This spot price increase is expected to positively influence caustic soda futures prices.