Group 1 - The stock price of Shanghai Petrochemical closed at 2.90 yuan on August 20, 2025, with a 1.75% increase from the previous trading day [1] - The company reported a revenue of 39.523 billion yuan for the first half of 2025, a year-on-year decrease of 9.21%, and a net loss attributable to shareholders of 462 million yuan, reversing from profit in the same period last year [1] - The company is a subsidiary of China Petroleum & Chemical Corporation, primarily engaged in oil refining and petrochemical production, with oil products accounting for 71.24% of its revenue [1] Group 2 - On August 20, 2025, the main funds saw a net inflow of 7.9433 million yuan, with a cumulative net inflow of 20.7292 million yuan over the past five trading days [2]