Huiboshin: Dongrui International Limited Company sells 937,400 shares, reducing its shareholding to 10.00%.

Huibo New Materials Announcement: Between June 23, 2025 and July 31, 2025, East Ray International Limited, the information disclosure obligor, reduced its holdings of Huibo New Materials shares by 937,400 shares through block trading and centralized bidding on the Shenzhen Stock Exchange, with a reduction ratio of 1.02%. There have been no changes in the shares of the information disclosure obligor since Huibo New Materials went public until June 22, 2025. After this equity change, the information disclosure obligor holds 9,226,600 shares of Huibo New Materials, reducing its proportion of total shares from 11.02% to 10.00%. The information disclosure obligor does not have any other plans for increase or decrease in holdings in the next 12 months.