Securities code: China Tungsten And Hightech Materials Co.Ltd(000657) securities abbreviation: China Tungsten And Hightech Materials Co.Ltd(000657) Announcement No.: 202255 China Tungsten And Hightech Materials Co.Ltd(000657) announcement on the resignation of senior managers the company and all members of the board of directors guarantee that the information disclosed is true, accurate and complete without false records, misleading statements or major omissions China Tungsten And Hightech Materials Co.Ltd(000657) (hereinafter referred to as “the company”) the board of directors recently received a written resignation report from Mr. Song Guohua, deputy general manager and chief financial officer of the company. Mr. Song Guohua applied for resignation from the position of deputy general manager and chief financial officer of the company due to job transfer. After his resignation, he will no longer hold the position of senior management of the company. In accordance with the company law, Shenzhen Stock Exchange self regulatory guidelines for listed companies No. 1 – standardized operation of listed companies on the main board and other relevant provisions, Mr. Song Guohua’s resignation report shall take effect from the date of delivery to the company’s board of directors. As of the disclosure date of this announcement, Mr. Song Guohua directly holds 363800 shares of the company’s shares (the company implements the grant and locking of the restricted stock incentive plan), and his shares of the company will continue to be held in strict accordance with the company’s restricted stock incentive plan Follow up the relevant provisions such as several provisions on the reduction of shares held by shareholders, directors, supervisors and senior managers of listed companies and the implementation rules for the reduction of shares held by shareholders, directors, supervisors and senior managers of listed companies of Shenzhen Stock Exchange. Mr. Song Guohua’s resignation will not affect the normal development of the company’s production, operation and financial management. The company will complete the appointment of the new chief financial officer as soon as possible in accordance with the company law, the articles of association and other provisions. The company and its board of directors express their heartfelt thanks to Mr. Song Guohua for his hard work and contribution to the development of the company during his tenure! It is hereby announced China Tungsten And Hightech Materials Co.Ltd(000657) board of directors may 24, 2002