February 26th News: On February 26th, Shandong Luxi Chemical increased the price of liquid caustic soda by 20 yuan/ton, with the 32% ion-exchange membrane alkali quoted at 670 yuan/ton. The 400,000-ton/year chlor-alkali plant is operating normally. Chempricehub analysis of caustic soda, long-short score: 1.5. The price increase of 20 yuan/ton for Shandong Luxi Chemical's liquid caustic soda, reaching 670 yuan/ton, indicates tight supply-demand dynamics or strengthening demand in the spot market, which constitutes a clear positive for spot caustic soda prices. The plant is operating normally with stable supply, but the price rise may stem from cost pressures or a recovery in downstream demand. The main caustic soda futures contract 2605 (data as of February 25, 2026) closed at 2,167 yuan/ton, up by 2.00 yuan, with open interest significantly increasing by 29,553 lots, reflecting strong bullish sentiment. Combined with the spot price increase, this may drive further upward movement in futures prices. Overall, positive factors dominate, but attention should be paid to subsequent supply-demand changes.