Market Overview - The non-metal materials sector increased by 0.91% on August 20, with Lianrui New Materials leading the gains [1] - The Shanghai Composite Index closed at 3766.21, up 1.04%, while the Shenzhen Component Index closed at 11926.74, up 0.89% [1] Stock Performance - Lianrui New Materials (688300) closed at 58.80, up 3.16% with a trading volume of 45,700 shares and a turnover of 261 million yuan [1] - KunCai Technology (603826) closed at 20.03, up 2.51% with a trading volume of 49,700 shares and a turnover of 98.3 million yuan [1] - Other notable performers include Dongfang Huichuan (832175) at 13.22 (+1.93%), Longgao Co. (605086) at 28.63 (+1.92%), and Suotong Development (603612) at 24.48 (+1.87%) [1] Capital Flow Analysis - The non-metal materials sector experienced a net outflow of 49.35 million yuan from institutional investors and 15.55 million yuan from speculative funds, while retail investors saw a net inflow of 64.89 million yuan [2] - Lianrui New Materials had a net inflow of 16.88 million yuan from institutional investors, while it faced a net outflow of 18.68 million yuan from speculative funds [3] - The overall capital flow indicates a mixed sentiment, with significant retail interest despite institutional outflows [2][3]