Sichuan Hongda Co., Ltd. Supplementary Announcement on Investment in Duolong Mining and Progress in Mining Area

Sichuan Hongda Co., Ltd. issued a supplementary announcement on the phased investment and related transactions with its affiliated company, Tibet Hongda Duolong Mining. This joint investment with the related party Hongda Group is to fulfill the agreements made in the previous arrangements, and the equity structure of Duolong Mining remains unchanged. Duolong Mining was established in 2014, and its current equity structure is 40% Hongda Group, 30% Hongda Co., Ltd., and 30% Shengyuan Mining. Duolong Mining holds two exploration rights, and the Duolong Copper Mine is designed to produce approximately 300,000 tons of copper annually. Currently, the Duolong Copper Mine is advancing the application for exploration to mining, with multiple preliminary works progressing steadily; Duobuzaxi Copper Mine will increase exploration investment in 2025, striving to complete the detailed investigation report preparation and review filing by the end of the year. Hongda Co., Ltd. and Hongda Group will invest in batches according to the progress