On January 12, Shandong Luxi Chemical raised the price of liquid caustic soda, with the quotation for 32% ion-exchange membrane caustic soda increasing to 690 yuan/ton. The 400,000-ton/year chlor-alkali plant is operating normally. PriceSeek's analysis of caustic soda shows a long-short score of 1.5. The article indicates that Shandong Luxi Chemical's quotation for 32% ion-exchange membrane caustic soda has been raised to 690 yuan/ton, suggesting tightening supply or strengthening demand in the spot market, which directly benefits spot caustic soda prices. The normal operation of the plant rules out the risk of supply disruptions, but the price increase may reflect regional supply-demand imbalances. Considering the caustic soda futures market, the main contract, such as 2605 (closing price 2369 yuan/ton, change +4.00), shows an upward trend. This news of spot price hikes may further boost sentiment in the futures market, supporting short-term price increases.