Huicheng Environmental Protection: Controlling shareholder Zhang Xingong and concerted action person plan to increase their holdings by 25 million to 50 million yuan.

Hui Cheng Environmental Protection Announcement: Controlling shareholder Zhang Xingong and concerted action Qingdao Hui Cheng Xinde plan to increase their holdings of the company's shares within 6 months from the disclosure date of this announcement, using their own funds or self-raised funds through centralized bidding or block trading. The increase in holdings shall not be less than 25 million yuan and shall not exceed 50 million yuan; there is no price range set for this time. Currently, Zhang Xingong holds 51.9344 million shares, accounting for 25.85%; Hui Cheng Xinde holds 15.1599 million shares, accounting for 7.54%, a total of 67.0943 million shares, accounting for 33.39%.