氯碱化工：上半年净利润4.43亿元，同比增长21.09%

Group 1 - The core viewpoint of the article highlights the financial performance of Chlor-Alkali Chemical (600618) for the first half of 2025, showing a decline in revenue but an increase in net profit [1] - The company reported a revenue of 3.577 billion yuan, a year-on-year decrease of 8.10% [1] - The net profit attributable to shareholders was 443 million yuan, reflecting a year-on-year increase of 21.09% [1] - The basic earnings per share were reported at 0.3831 yuan [1] Group 2 - The industry is experiencing intensified supply-demand dynamics and frequent price fluctuations [1] - The price of the company's main product, caustic soda, has slightly increased compared to the same period last year [1] - Prices for chlorine products and polyvinyl chloride (PVC) have both decreased [1]