Hangzhou Lian Microelectronics Co., Ltd. Progress Announcement on Providing Guarantees for Subsidiaries

Stock Code: 605358 Stock Short Name: LIEAN MICRO Announcement No.: 2026-012

Bond Code: 111010 Bond Short Name: Lie An Convertible Bonds

Hangzhou Liean Microelectronics Co., Ltd.

Progress Announcement on the Provision of Guarantees for a Wholly-Owned Subsidiary

The board of directors of this Company and all of its directors guarantee that there are no false records, misleading statements, or material omissions in the content of this announcement, and assume legal responsibility for the authenticity, accuracy, and completeness of the content.

Key Information Highlights:

● Guaranteed Party and Basic Information

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● Cumulative Guarantee Situation

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I. Overview of the Guarantee

(I) Basic Information of the Guarantee

To meet capital needs for production and business operations, Jinhuihong Technology (Quzhou) Co., Ltd. (hereinafter referred to as “Quzhou Jinhuihong”) has applied to the Zhejiang Branch of the Export-Import Bank of China (hereinafter referred to as “the Zhejiang Branch of the Export-Import Bank”) for a loan of RMB 30,000 million; Jinhuihong Microelectronics (Quzhou) Co., Ltd. (hereinafter referred to as “Jinhuihong Microelectronics”) has applied to the Quzhou Development Zone Sub-branch of China Construction Bank Co., Ltd. (hereinafter referred to as “the Construction Bank Quzhou Development Zone Sub-branch”) for a loan of RMB 10,000 million; Haining Liean Dongxin Microelectronics Co., Ltd. (hereinafter referred to as “Haining Dongxin”) has applied to the Hangzhou Branch of Hangzhou Bank Co., Ltd., Hangzhou Southern District Sub-branch (Zhejiang Pilot Free Trade Zone) (hereinafter referred to as “the Hangzhou Bank Jiangnan Sub-branch”) for a loan of RMB 10 million. The Company has recently, respectively, signed guarantee contracts with the Zhejiang Branch of the Export-Import Bank, the Construction Bank Quzhou Development Zone Sub-branch, and the Hangzhou Bank Jiangnan Sub-branch to provide joint and several liability guarantees for the above-mentioned loans, with guarantee amounts of RMB 30,000 million, RMB 10,000 million, and RMB 10 million respectively. The guarantee liability period is 3 years from the date the term for the performance of the relevant debt expires. The above-mentioned guarantees provide no counter-guarantee. Other shareholders of the guaranteed party have not provided any guarantee.

(II) Internal Decision-Making Procedures

The above-mentioned guarantee matters related to Quzhou Jinhuihong have been considered and approved at the 8th meeting of the fifth session of the board of directors of the Company and the 2024 annual general meeting of shareholders of the Company. The validity period of external guarantee matters is from the date the shareholders’ meeting approves the matter until the date of the shareholders’ meeting of the next year. For specific details, please refer to the Company’s announcement disclosed on April 29, 2025, titled “Liean Micro about the Provision of Guarantees for Holding Subsidiaries in 2025” (Announcement No. 2025-019).

The above-mentioned guarantee matters related to Jinhuihong Microelectronics and Haining Dongxin have been considered and approved at the 15th meeting of the fifth session of the board of directors of the Company and the first extraordinary general meeting of shareholders in 2026. For specific details, please refer to the Company’s announcement disclosed on January 10, 2026, titled “Liean Micro about the Provision of Guarantees for Holding Subsidiaries in 2026” (Announcement No. 2026-007).

II. Basic Information of the Guaranteed Parties

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III. Main Contents of the Guarantee Agreements

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The above-mentioned guarantees provide no counter-guarantee. Other shareholders of the guaranteed party have not provided any guarantee.

IV. Necessity and Reasonableness of the Guarantees

The guaranteed parties are holding subsidiaries within the scope of the consolidated financial statements of the Company. Their operating conditions are stable, their credit standing is good, and they have the ability to repay debts. Moreover, the Company has control over the subsidiaries and can effectively manage their operations, making the overall guarantee risk controllable. This will not have a significant impact on the Company’s day-to-day operations, and there is no situation that would harm the Company and the interests of small and medium shareholders. As the shareholding proportions of other minority shareholders are relatively small and they do not participate in the Company’s operation and management, guarantees were not provided in proportion to shareholding.

V. Board of Directors’ Opinions

This guarantee was carried out within the guarantee额度 approved by the Company’s 2024 annual general meeting of shareholders and the first extraordinary general meeting of shareholders in 2026. After the approved额度 was approved by the 8th and 15th meetings of the fifth session of the board of directors, it was submitted to the (general) meeting for consideration. When deliberating on this额度, the board of directors believes that the guaranteed parties are the Company and holding subsidiaries within the scope of the consolidated financial statements. This guarantee helps the subsidiaries address their capital needs for production and business operations and falls within the Company’s normal financing guarantee practices. The guaranteed parties are the Company’s holding subsidiaries, which can be effectively managed in terms of their operations. The overall guarantee risk is controllable, and there is no situation that would damage the interests of the Company and the vast number of investors.

VI. Total Number of External Guarantees and Number of Overdue Guarantees

As of the date of this announcement, the total outstanding guarantee balance for which the Company bears guarantee responsibility for holding subsidiaries is RMB 315,220.89 million; the outstanding guarantee balance for other entities other than holding subsidiaries is 0; and the Company’s total outstanding guarantee balance is RMB 315,220.89 million, accounting for 42.96% of the Company’s net assets audited for the most recent period. The Company has no overdue guarantees.

Announcement is hereby made.

Board of Directors of Hangzhou Liean Microelectronics Co., Ltd.

March 25, 2026

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