According to the Dunan Environmental announcement, Zijin Investment had planned to reduce its holdings by no more than 31,963,085 shares through centralized bidding or bulk transactions within 3 months after 15 trading days from the disclosure of the relevant announcement in 2025, that is, no more than 3% of the company's total share capital. As of the expiration of the holdings reduction period on December 12, Zijin Investment only reduced its holdings of 10,499,300 shares through centralized bidding, accounting for 0.9862% of the total share capital. The average reduction price was 12.60 yuan/share, and the reduction price range was 12.31 to 15.10 yuan/share. After the holdings were reduced, Zijin Investment's shareholding fell to 67,969,616 shares, accounting for 6.3845% of the total share capital. This reduction in holdings complies with the regulations, did not cause a change in control, and did not affect the company's operations.

According to the Dunan Environmental announcement, Zijin Investment had planned to reduce its holdings by no more than 31,963,085 shares through centralized bidding or bulk transactions within 3 months after 15 trading days from the disclosure of the relevant announcement in 2025, that is, no more than 3% of the company's total share capital. As of the expiration of the holdings reduction period on December 12, Zijin Investment only reduced its holdings of 10,499,300 shares through centralized bidding, accounting for 0.9862% of the total share capital. The average reduction price was 12.60 yuan/share, and the reduction price range was 12.31 to 15.10 yuan/share. After the holdings were reduced, Zijin Investment's shareholding fell to 67,969,616 shares, accounting for 6.3845% of the total share capital. This reduction in holdings complies with the regulations, did not cause a change in control, and did not affect the company's operations.