化学原料板块9月4日跌0.79%，镇洋发展领跌，主力资金净流出5.38亿元

Market Overview - On September 4, the chemical raw materials sector declined by 0.79% compared to the previous trading day, with Zhenyang Development leading the decline [1] - The Shanghai Composite Index closed at 3765.88, down 1.25%, while the Shenzhen Component Index closed at 12118.7, down 2.83% [1] Stock Performance - Notable gainers in the chemical raw materials sector included: - Xinghua Co., Ltd. (002109) with a closing price of 3.97, up 3.12% on a trading volume of 528,500 shares and a turnover of 212 million yuan [1] - Sanxiang New Materials (603663) closed at 28.01, up 3.02% with a trading volume of 302,300 shares and a turnover of 859 million yuan [1] - Shanshui Technology (301190) closed at 25.61, up 2.98% with a trading volume of 29,900 shares and a turnover of 75.97 million yuan [1] - Major decliners included: - Zhenyang Development (603213) closed at 13.61, down 8.23% with a trading volume of 205,700 shares and a turnover of 287 million yuan [2] - Zhenhua Co., Ltd. (603067) closed at 16.31, down 7.96% with a trading volume of 418,600 shares and a turnover of 703 million yuan [2] - Jinniu Chemical (600722) closed at 6.61, down 5.71% with a trading volume of 549,900 shares and a turnover of 36.9 million yuan [2] Capital Flow - The chemical raw materials sector experienced a net outflow of 538 million yuan from institutional investors, while retail investors saw a net inflow of 575 million yuan [2][3] - Notable capital flows included: - Sanxiang New Materials (603663) had a net inflow of 75.51 million yuan from institutional investors, while retail investors experienced a net outflow of 39.33 million yuan [3] - Baofeng Energy (600989) saw a net inflow of 14.11 million yuan from institutional investors, with retail investors experiencing a net outflow of 32.67 million yuan [3] - Xinghua Co., Ltd. (002109) had a net inflow of 9.27 million yuan from institutional investors, while retail investors saw a net outflow of 3.22 million yuan [3]