东方材料今日大宗交易折价成交168.58万股，成交额2899.58万元

Group 1 - The core point of the article highlights that Oriental Materials conducted a block trade on October 22, with a total of 1.6858 million shares traded, amounting to 28.9958 million yuan, which represents 8.86% of the total trading volume for that day [1][2] - The transaction price was 17.2 yuan per share, which is a discount of 6.32% compared to the market closing price of 18.36 yuan [1][2]