非金属材料板块12月23日涨2.18%，联瑞新材领涨，主力资金净流入9544.84万元

Group 1 - The non-metal materials sector increased by 2.18% compared to the previous trading day, with Lianrui New Materials leading the gains [1] - The Shanghai Composite Index closed at 3919.98, up 0.07%, while the Shenzhen Component Index closed at 13368.99, up 0.27% [1] - A detailed table of individual stock performance within the non-metal materials sector is provided [1] Group 2 - The non-metal materials sector experienced a net inflow of main funds amounting to 95.4484 million yuan, while retail funds saw a net outflow of 74.3544 million yuan [2] - The net outflow of speculative funds was recorded at 21.094 million yuan [2] - A detailed table of fund flows for individual stocks in the non-metal materials sector is included [2]