YOFC (06869) A shares experienced abnormal fluctuations in stock trading, and there are no significant undisclosed events that should have been disclosed.

YOFC (06869) announced that the closing price of company A's shares deviated by more than 20% for three consecutive trading days from December 17, 2025 to December 19, 2025, and closed at the limit-up price on December 22, 2025, indicating recent significant fluctuations in stock price. As of December 22, 2025, the rolling P/E ratio of company A's shares is approximately 169 times, posing a risk of a high P/E ratio. The company has conducted a self-inspection and found that there have been no significant changes in the company's main business, daily production and operation, and operating environment compared to the information previously disclosed. There are no major undisclosed matters that should be disclosed. The company has observed an improvement in the supply and demand structure of fiber optic cable products in the market recently, with a high level of attention on fiber optic cable products related to computing data centers. Currently, the global fiber optic cable industry market environment is normal, and the demand for fiber optic cables related to the telecommunications market is still under pressure, with the proportion of new products related to data centers being relatively small. Investors are advised to pay attention to investment risks, make rational decisions, and invest cautiously.