智通财经网·2025-09-19 11:55Group 1 - The company's A-share stock experienced a cumulative price deviation of over 20% from September 16 to September 18, 2025, indicating abnormal trading fluctuations [1] - On September 19, 2025, the company's A-share stock closed at the daily limit price, reflecting significant recent price volatility [1] - The company conducted a self-inspection and confirmed that there have been no significant changes in its main business, daily operations, or operating environment compared to previous disclosures [1] Group 2 - The market has shown increased attention to optical fiber and cable products related to data centers, particularly hollow-core fibers, which are still in the early application stage [1] - Currently, products related to data centers account for a small proportion of the total global demand for optical fibers and cables, and hollow-core fibers have not yet achieved scale sales or stable pricing and profit levels [1] - The hollow-core fiber business has not yet had a significant impact on the company's financial data [1]