Yunnan Copper: Provides 100 million yuan loan guarantee for its controlled subsidiary Diqing Mining

Yunnan Copper announced that the company has signed a guarantee contract with Agricultural Bank of China Shangri-La Branch to provide security for the debt under the working capital loan contract between Agricultural Bank of China Shangri-La Branch and its controlled subsidiary Diqing Mining. The principal amount of the guaranteed claim is RMB 100.00 million, and the guarantee method is a full joint and several liability guarantee. Diqing Prefecture Investment, another shareholder of Diqing Mining, provides a counter-guarantee in proportion to its shareholding. The loan term is one year. This guarantee falls within the 2026 annual guarantee plan limit, which is no more than RMB 280.00 million. After this execution, the remaining limit is no more than RMB 180.00 million. After the guarantee, the company's guarantee balance for Diqing Mining is RMB 280.00 million, accounting for 1.82% of the company's audited net assets for 2025. The company has no overdue guarantees.