Changfei Optical announced that the closing price increase of the company's stock exceeded 20% for three consecutive trading days from December 17, 2025 to December 19, 2025. After self-inspection by the company, a letter was sent to China Huaxin Post and Telecommunication Technology Co., Ltd., the largest shareholder of the company. As of the disclosure date of this announcement, there was no significant information that should have been disclosed but not disclosed. The company notes that recently the market is paying a lot of attention to new optical fiber optic cable products related to computing power data centers. Currently, the global fiber optic cable industry market environment is normal, and new products related to data centers account for a small proportion of total demand. Investors are kindly requested to pay attention to investment risks, make rational decisions, and invest prudently.

Changfei Optical announced that the closing price increase of the company's stock exceeded 20% for three consecutive trading days from December 17, 2025 to December 19, 2025. After self-inspection by the company, a letter was sent to China Huaxin Post and Telecommunication Technology Co., Ltd., the largest shareholder of the company. As of the disclosure date of this announcement, there was no significant information that should have been disclosed but not disclosed. The company notes that recently the market is paying a lot of attention to new optical fiber optic cable products related to computing power data centers. Currently, the global fiber optic cable industry market environment is normal, and new products related to data centers account for a small proportion of total demand. Investors are kindly requested to pay attention to investment risks, make rational decisions, and invest prudently.