Fujian Aonong Biotechnology Group Co., Ltd. Announcement on the Guarantee Situation of the Company as of February 2026

Stock Code: 603363 Stock Abbreviation: Aonong Biological (Rights Protection) Announcement No.: 2026-017

Fujian Aonong Biological Technology Group Co., Ltd.

Announcement on the Company’s Guarantee Situation in February 2026

The board of directors of this company and all directors hereby guarantee that there are no false statements, misleading representations or material omissions in the contents of this announcement, and assume legal responsibility for the authenticity, accuracy and completeness of the contents.

I. Overview of the Guarantee Situation

Fujian Aonong Biological Technology Group Co., Ltd. (hereinafter referred to as the “Company” or “this Company”) approved, at the 20th meeting of the fourth session of the board of directors held on December 4, 2025, and at the 2025 fourth extraordinary general meeting of shareholders held on December 26, 2025, the “Proposal on Providing Guarantees for Industry Chain Cooperation Partners in 2026” and the “Proposal on Providing Mutual Guarantees in 2026 by the Company and Its Subsidiaries,” the content of which includes:

1. Agree that in 2026, the Company and its subsidiaries will provide guarantees, not exceeding RMB 300 million in total, for industry chain cooperation partners such as downstream customers of the Company and its subsidiaries, and industry chain suppliers.

2. Agree that in 2026, the Company and its wholly-owned and controlling subsidiaries will continue to provide mutual guarantees to each other, including: the Company provides a maximum guarantee amount of RMB 1.0 billion for its wholly-owned and controlling subsidiaries with an asset-liability ratio below 70%; the Company provides a maximum guarantee amount of RMB 2.0 billion for its subsidiaries with an asset-liability ratio of 70% or above; the Company’s wholly-owned and controlling subsidiaries provide a maximum guarantee amount of RMB 500 million for the Company’s other wholly-owned and controlling subsidiaries with an asset-liability ratio below 70%; the Company’s wholly-owned and controlling subsidiaries provide a maximum guarantee amount of RMB 500 million for the Company’s other wholly-owned and controlling subsidiaries with an asset-liability ratio of 70% or above; and the Company’s wholly-owned and controlling subsidiaries provide a maximum guarantee amount of RMB 500 million for the Company.

The above specific content is set out in the announcements numbered 2025-105, 2025-107, 2025-108 and 2025-117 disclosed by the Company on the website of the Shanghai Stock Exchange (www.sse.com.cn).

II. Progress of Guarantees in February 2026

(I) Progress of Guarantees Provided by the Company and Its Subsidiaries for Industry Chain Cooperation Partners

As of February 28, 2026, the total guarantee balance provided by the Company and its subsidiaries for industry chain cooperation partners such as downstream customers and industry chain suppliers of the Company and its subsidiaries, totaling 126 parties in all, was RMB 93.1141 million.

As of February 28, 2026, the top five parties in terms of the guarantee balance provided by the Company and its subsidiaries for industry chain cooperation partners are as follows:

■

(II) Progress of Mutual Guarantees Provided by the Company and Its Subsidiaries

As of February 28, 2026, the outstanding guarantee balances provided to each other by the Company and its subsidiaries are as follows:

Unit: RMB 10,000

■

Of which, in February 2026, the actual occurrence of mutual guarantees provided by the Company and its subsidiaries is as follows:

1. Guarantees provided mutually between companies for the procurement of raw materials and their subsidiaries

As of February 28, 2026, for the procurement of raw materials, the actual outstanding guarantee balance provided mutually between the Company and its subsidiaries was RMB 107,413.60 thousand; in February, there were no newly added matters of mutual guarantees provided for the procurement of raw materials between the Company and its subsidiaries.

2. In February 2026, the following is the case of newly added subsidiaries providing mutual guarantees for financing by banks and other financial institutions:

Unit: RMB 10,000

■

III. Total Number of External Guarantees and Number of Guarantees Past Due

As of February 28, 2026, the actual outstanding external guarantees (i.e., guarantees for parties outside the scope of the Company’s consolidated financial statements) provided by the Company and its wholly-owned and controlling subsidiaries were RMB 712,83.96 thousand, accounting for 27.78% of the Company’s net assets audited in the most recent period; the actual outstanding guarantees provided by the Company for its wholly-owned and controlling subsidiaries were RMB 1,584,64.51 thousand, accounting for 61.75% of the Company’s net assets audited in the most recent period; the actual outstanding guarantees provided by its wholly-owned and controlling subsidiaries for other wholly-owned and controlling subsidiaries of the Company were RMB 530,90.89 thousand, accounting for 20.69% of the Company’s net assets audited in the most recent period; and the actual outstanding guarantees provided by its wholly-owned and controlling subsidiaries for the parent company were RMB 102,43.91 thousand, accounting for 3.99% of the Company’s net assets audited in the most recent period. Of which, the amount of guarantees that were past due for mutual guarantees provided by the Company and its wholly-owned and controlling subsidiaries was RMB 208,64.24 thousand; the amount of past due within the actual external guarantee balances provided by the Company and its wholly-owned and controlling subsidiaries (i.e., guarantees for parties outside the scope of the Company’s consolidated financial statements) was RMB 398,23.88 thousand. Of which: RMB 270,87.08 thousand of the overdue amounts arose from guarantees provided by the Company and its wholly-owned and controlling subsidiaries to subsidiaries that had been separated and transferred to the trust platform before the separation; for explanations of the relevant guarantee matters, please refer to the “Announcement on Disposing of Assets in the Restructuring Procedure” disclosed by the Company on December 11, 2024 (Announcement No.: 2024-213); RMB 224.60 thousand of the overdue amounts arose from guarantees provided by the Company and its subsidiaries to support downstream customers’ financing; there are certain degrees of risk of customer breach of contract. The Company has accrued the corresponding provisions for expected liabilities. For the risk of breach of contract by downstream customers, the Company has formulated dedicated response measures. Overall, the guarantee risk is relatively small.

This announcement is hereby issued.

Board of Directors of Fujian Aonong Biological Technology Group Co., Ltd.

March 31, 2026

Massive information, precise interpretation—available on the Sina Finance APP