International fiber composite materials: The company's electronic fine yarn and fine yarn products can be used in the upstream of PCB, accounting for 18.22% of revenue.

International Composite Materials Announcement, the closing price of the company's stock has deviated by more than 30% for three consecutive trading days from June 24th to 26th, 2026, indicating abnormal fluctuations in stock trading. After self-inspection and verification with the controlling shareholder and actual controller, the recent market attention on PCB and electronic fabric related topics has increased. The company's glass fiber electronic yarn and yarn products can be used as the upstream basic raw materials for printed circuit boards, with a business income proportion of 18.22% in 2025, which is relatively small overall. Currently, the company's related business operations are stable, with no major undisclosed matters. The company, controlling shareholder, and actual controller do not have any major undisclosed matters that should be disclosed or significant matters in the planning stage. The company's operations and production are normal, and there have been no significant changes in the internal and external environment.