Market Overview - On September 4, the non-metal materials sector declined by 1.71% compared to the previous trading day, with Lianrui New Materials leading the drop [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 non-metal materials sector included: - Changjiang Materials, up 10.00% to 26.40, with a trading volume of 183,900 shares and a turnover of 470 million yuan [1] - Ningxin New Materials, up 7.58% to 19.88, with a trading volume of 265,300 shares and a turnover of 528 million yuan [1] - Tianma New Materials, up 4.44% to 40.69, with a trading volume of 104,800 shares and a turnover of 419 million yuan [1] - Lianrui New Materials saw a decline of 4.45% to 50.50, with a trading volume of 74,900 shares and a turnover of 385 million yuan [2] Capital Flow - The non-metal materials sector experienced a net inflow of 147 million yuan from institutional investors, while retail investors saw a net outflow of 59.57 million yuan [2] - The capital flow for key stocks showed: - Changjiang Materials had a net inflow of 157 million yuan from institutional investors, while retail investors had a net outflow of 78.39 million yuan [3] - Lianrui New Materials had a net outflow of 17.98 million yuan from institutional investors, with a net inflow of 27.89 million yuan from retail investors [3]