冶钢原料板块8月28日涨0.41%，广东明珠领涨，主力资金净流出9009.39万元

Group 1 - The core viewpoint of the news is that the steel raw materials sector experienced a slight increase of 0.41% on August 28, with Guangdong Mingzhu leading the gains [1] - The Shanghai Composite Index closed at 3843.6, up by 1.14%, while the Shenzhen Component Index closed at 12571.37, up by 2.25% [1] Group 2 - In terms of capital flow, the steel raw materials sector saw a net outflow of 90.09 million yuan from main funds, while retail investors contributed a net inflow of 57.77 million yuan [2] - Speculative funds recorded a net inflow of 32.32 million yuan into the sector [2]