Group 1 - The core viewpoint of the article highlights the market price of caustic soda (liquid caustic soda, 32%) in late July 2025, which is reported at 871.7 yuan/ton, reflecting a year-on-year increase of 4.26% but a month-on-month decrease of 0.09% [1] - Over the past five years, the price of caustic soda has shown significant fluctuations, with the highest price recorded in late July 2022 at 1117.4 yuan/ton [1]