山东玻纤：关于股票交易异常波动的公告

Group 1 - The core point of the article is that Shandong Glass Fiber announced a significant stock price fluctuation, with a cumulative increase of over 20% in closing prices on February 11 and 12, 2026, indicating abnormal trading activity [1] - The company conducted a self-examination and confirmed that its operational situation is normal, with no undisclosed significant matters as of the date of the announcement [1]