Market Overview - On January 23, the non-metal materials sector increased by 3.15% compared to the previous trading day, with Suotong Development leading the gains [1] - The Shanghai Composite Index closed at 4136.16, up 0.33%, while the Shenzhen Component Index closed at 14439.66, up 0.79% [1] Stock Performance - Suotong Development (603612) closed at 29.15, with a rise of 10.00% and a trading volume of 534,700 shares, amounting to a transaction value of 1.512 billion [1] - Other notable performers included Tianma New Materials (920971) with a 6.54% increase, closing at 36.97, and Quartz Shares (603688) with a 5.33% increase, closing at 42.08 [1] - The overall trading volume and transaction values for various stocks in the non-metal materials sector were significant, with total transaction values reaching billions [1][2] Capital Flow - The non-metal materials sector saw a net inflow of 328 million in main funds, while retail funds experienced a net outflow of 191 million [2] - The main funds' net inflow for Suotong Development was 209 million, representing 13.81% of its trading volume, while retail funds showed a net outflow of 136 million [3] - Other stocks like Quartz Shares and Power Diamond also experienced varying levels of net inflow and outflow, indicating mixed investor sentiment within the sector [3]