Core Viewpoint - Changfei Optical Fiber (601869) and its subsidiary Changfei Cable (06869) experienced a significant stock price fluctuation, with a cumulative increase of over 20% during the trading days from February 6 to February 10, 2026, which is classified as abnormal trading activity according to the Shanghai Stock Exchange regulations [1] Group 1: Company Information - The company conducted a self-examination and confirmed, through correspondence with its largest shareholder, China Huaxin Postal Technology Co., Ltd., that there are no undisclosed significant information as of the announcement date [1] - The company noted a growing market demand for new optical fiber and cable products related to data centers, as well as attention on the business progress of overseas peers and fluctuations in optical fiber prices in the telecommunications market [1] Group 2: Market Demand and Product Impact - Currently, the quantity of optical fiber and cable products used for internal and interconnection in data centers represents a small proportion of the total global market demand, while the overall demand for optical fiber and cable products in the telecommunications market remains stable [1] - The impact of product price fluctuations on the company's future performance needs to be assessed in conjunction with future market conditions and the company's business situation [1] - The company does not engage in CPO (Co-Packaged Optics) related business [1]