According to the announcement of Shanxi Fenghuo Electronics Co.Ltd(000561) , Shaanxi Fiberhome Telecommunication Technologies Co.Ltd(600498) Group Co., Ltd., the controlling shareholder of the company, and Shaanxi electronic Information Industry Investment Management Co., Ltd., the person acting in concert, increased their holdings of 5.8267 million shares of the company by means of centralized bidding trading through the trading system of Shenzhen stock exchange from January 27, 2022 to February 14, 2022, accounting for 0.964% of the total share capital of the company, with an increase of 41.97 million yuan. It is planned to continue to increase the shares of the company through the centralized bidding trading system of Shenzhen Stock Exchange within 6 months from the date of announcement, with a total increase amount of no less than 75 million yuan (including the increased shares this time), and the proposed increase price will not set a fixed price or price range.