Progress Announcement on Guarantees for Subsidiaries

Securities Code: 301099 Securities Abbreviation: Yachuang Electronic Announcement No.: 2026-043 Shanghai Yachuang Electronic Group Co., Ltd. Announcement on Progress of Guarantees for Subsidiaries The Company and all members of the Board of Directors guarantee that the information disclosed is true, accurate, and complete, and contains no false records, misleading statements, or major omissions. Special Risk Warning: Shanghai Yachuang Electronic Group Co., Ltd. (hereinafter referred to as the "Company") estimates that the total amount of guarantees to be provided in 2026 has exceeded 100% of the Company's net assets as of the most recent audited period. The total amount of guarantees for entities with an asset-liability ratio exceeding 70% has exceeded 50% of the Company's net assets as of the most recent audited period. Investors are kindly requested to pay attention to related risks. I. Overview of Guarantee Situation The Company held the Eighth Meeting of the Third Board of Directors on April 18, 2026, and the 2025 Annual Shareholders' Meeting on May 22, 2026. The proposal "Proposal on the Estimated Guarantee Quota for the Company and its Holding Subsidiaries to Provide Guarantees for Holding Subsidiaries" was deliberated and approved. To meet the daily operating needs of subsidiaries and ensure the smooth implementation of comprehensive credit applications (including but not limited to working capital loans in RMB or foreign currency, M&A loans, project loans, trade finance, bank acceptance bills, letters of credit, guarantees, bill discounts, factoring, export usance letters of credit, forward foreign exchange settlement and sales, and other financial derivative businesses) to business counterparties (including but not limited to banks, financial institutions, etc., hereinafter referred to as "business counterparties"), the Company and its subsidiaries estimate providing an RMB 5 billion guarantee quota for subsidiaries in 2026. Among them, the guarantee quota for guarantee objects with an asset-liability ratio of 70% and above shall not exceed RMB 4 billion, and the guarantee quota for guarantee objects with an asset-liability ratio below 70% shall not exceed RMB 1 billion. At the same time, combined with the actual needs of the daily business operations of subsidiaries, the Company and its subsidiaries estimate providing an RMB 3 billion guarantee quota for subsidiary business performance (including but not l