瑞丰新材（300910）披露关于持股5%以上股东权益变动触及1%整数倍的公告，12月1日股价上涨0.27%

Group 1 - The core point of the article is that China Petroleum Capital Co., Ltd., a major shareholder of Ruifeng New Materials (300910), reduced its stake in the company by 611,400 shares, which is 0.21% of the total share capital, without affecting the company's control or governance structure [1][2] - As of December 1, 2025, Ruifeng New Materials' stock closed at 55.92 yuan, with a market capitalization of 16.549 billion yuan, reflecting a slight increase of 0.27% from the previous trading day [1] - The shareholding of China Petroleum Capital decreased from 12.18% to 11.97%, indicating a change that touches the 1% integer threshold [1]