Security Technology: Change of Chairman, Legal Representative, and Adjustment of members of the Strategic Committee.

Security Technology announced this morning that, at the 21st meeting of the sixth board of directors on March 23, 2026, Wu Liting was unanimously elected as the chairman of the sixth board of directors, with a term from the date of approval by the meeting until the expiration of the term of the sixth board of directors. According to Article 8 of the Company's Articles of Association, the chairman of the board of directors is the legal representative of the company, so the legal representative of the company has been changed from Zhang Zhigang to Wu Liting. The company will soon complete the industrial and commercial change registration procedures. On the same day, the 21st meeting of the board of directors approved the election of Wu Liting as a member of the Strategic Committee and appointed him as the director. Together with independent director Liu Bo and non-independent director Zhang Lei, they form a new term of the Strategic Committee.