化学制品板块9月22日跌0.84%，乐通股份领跌，主力资金净流出13.36亿元

Market Overview - On September 22, the chemical products sector declined by 0.84%, with Letong Co., Ltd. leading the decline [1] - The Shanghai Composite Index closed at 3828.58, up 0.22%, while the Shenzhen Component Index closed at 13157.97, up 0.67% [1] Stock Performance - Notable gainers in the chemical products sector included: - Huasoft Technology (002453) with a closing price of 7.33, up 10.06% [1] - Kaimete Gas (002549) at 22.84, up 10.02% [1] - Beihua Co., Ltd. (002246) at 18.77, up 9.57% [1] - Major decliners included: - Letong Co., Ltd. (002319) at 11.30, down 5.52% [2] - Meibang Technology (832471) at 15.40, down 5.46% [2] - Hanwei Technology (836957) at 17.00, down 5.45% [2] Capital Flow - The chemical products sector experienced a net outflow of 1.336 billion yuan from institutional investors, while retail investors saw a net inflow of 1.179 billion yuan [2] - The capital flow for specific stocks showed: - Beihua Co., Ltd. (002246) had a net inflow of 228 million yuan from institutional investors [3] - Huasoft Technology (002453) had a net inflow of 117.5 million yuan from institutional investors [3]