Progress Announcement on Guarantee for Subsidiaries

Rongjie Co., Ltd. Announcement (2026) Stock Code: 002192 Stock Abbreviation: Rongjie Co., Ltd. Announcement No.: 2026-018 Rongjie Co., Ltd. Announcement on Progress of Guarantee for Subsidiaries The Company and the entire Board of Directors guarantee that the content of this information disclosure is true, accurate, and complete, and there are no false records, misleading statements, or major omissions. I. Progress of Guarantee Recently, Rongjie Co., Ltd. (hereinafter referred to as the "Company") signed a "Maximum Guarantee Contract" with the Industrial and Commercial Bank of China, Chengdu Branch, to provide a maximum guarantee for the creditor's rights formed between the bank and the Company's wholly-owned subsidiary, Ganzi Rongda Lithium Industry Co., Ltd., under the main contract. As approved by the first extraordinary general meeting of shareholders in 2026, the Company agreed to provide guarantees for the comprehensive credit lines of subsidiaries within the consolidated scope for the year 2026. The guarantee limit shall not exceed RMB 600 million, and the relevant contracts signed within one year from the date of approval by the share