非金属材料板块12月12日涨0.17%，长江材料领涨，主力资金净流出2656.01万元

Group 1 - The non-metal materials sector increased by 0.17% compared to the previous trading day, with Changjiang Materials leading the gains [1] - The Shanghai Composite Index closed at 3889.35, up by 0.41%, while the Shenzhen Component Index closed at 13258.33, up by 0.84% [1] Group 2 - In terms of capital flow, the non-metal materials sector experienced a net outflow of 26.56 million yuan from main funds and a net outflow of 50.76 million yuan from speculative funds, while retail investors saw a net inflow of 77.32 million yuan [2] - Detailed capital flow for individual stocks in the non-metal materials sector is provided in the accompanying table [2]