According to Pioneer Environmental Protection's announcement, the company's board of directors received a resignation report from director and general manager Wang Zhengshu. Due to personal reasons, Wang Zhengshu applied to resign as director and general manager of the company. The resignation report took effect on the date it was delivered to the company's board of directors, and after his resignation, he no longer held any position in the company or its holding subsidiary. Wang Zhengshu's original term of office expires on February 25, 2027, and there are no unfulfilled public promises. This departure has not caused the number of board members of the company to fall below the minimum required number, and will not affect the normal operation of the board of directors and the daily operation of the company. The company will carry out the relevant procedures for by-electing directors and appointing a general manager as soon as possible.

According to Pioneer Environmental Protection's announcement, the company's board of directors received a resignation report from director and general manager Wang Zhengshu. Due to personal reasons, Wang Zhengshu applied to resign as director and general manager of the company. The resignation report took effect on the date it was delivered to the company's board of directors, and after his resignation, he no longer held any position in the company or its holding subsidiary. Wang Zhengshu's original term of office expires on February 25, 2027, and there are no unfulfilled public promises. This departure has not caused the number of board members of the company to fall below the minimum required number, and will not affect the normal operation of the board of directors and the daily operation of the company. The company will carry out the relevant procedures for by-electing directors and appointing a general manager as soon as possible.