Leshan Electric Power Co., Ltd. Announcement on the Guarantee Provided by Its Subsidiary Mianyang Anhong Enterprise Management Co., Ltd.

Stock Code: 600644 Stock Abbreviation: Leshan Electric Power Announcement No.: 2026-011

Leshan Electric Power Co., Ltd.

Announcement on Providing Guarantees for Subsidiaries of the Controlling Subsidiary Mianyang Anhong Enterprise Management Co., Ltd.

The Board of Directors of the Company and all directors guarantee that there are no false records, misleading statements, or major omissions in the content of this announcement, and they bear legal responsibility for the authenticity, accuracy, and completeness of its content.

Important Content Reminder:

● Guaranteed Object and Basic Information

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● Cumulative Guarantee Situation

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I. Overview of the Guarantee Situation

(1) Basic Information of the Guarantee

Leshan Electric Power Co., Ltd. (hereinafter referred to as “the Company”) controlling subsidiary Mianyang Anhong Enterprise Management Co., Ltd. (hereinafter referred to as “Anhong Management,” holding 51.00% of the shares) has a wholly-owned subsidiary, Mianyang Anhong Construction Development Co., Ltd., which has a wholly-owned subsidiary Mianyang Anhong Cultural Media Co., Ltd. (hereinafter referred to as “Anhong Media”). Due to operational needs, on October 2025, Anhong Media applied for a working capital loan of 7 million yuan from the Sichuan Branch of Bank of China Co., Ltd. Anhong Management provided a joint liability guarantee (see the Company’s announcement 2025-069 for details). Recently, Anhong Management received a “Notice Letter” from the Sichuan Branch of Bank of China Co., Ltd., stating that due to adjustments in Anhong Media’s business arrangements, the loan was ultimately not disbursed. Therefore, the originally signed “Working Capital Loan Agreement” (2025 Year Operating Loan No. 149) and “Maximum Guarantee Contract” (2025 Year Operating High Guarantee No. 192) are terminated, and the parties do not bear any breach of contract liability or related responsibilities.

In order to meet production and operational needs, Anhong Media has again applied for a working capital loan of 7 million yuan from the Sichuan Branch of Bank of China Co., Ltd., with Anhong Management providing a joint liability guarantee.

(2) Decision-Making Procedure

According to the Shanghai Stock Exchange’s “Self-Regulatory Guidelines for Listed Companies No. 1 - Standardized Operations” 6.2.10, “If a controlling subsidiary of a listed company provides guarantees for a legal person or other organization within the consolidated financial statements of the listed company, the listed company should disclose it promptly after the controlling subsidiary has completed the review procedures, except for guarantee matters that should be submitted to the shareholders’ meeting of the listed company for review according to the ‘Rules for the Listing of Stocks’ of this Exchange,” only the review procedure of Anhong Management needs to be fulfilled. This guarantee matter has been approved at the 16th interim meeting of the first board of directors of Anhong Management and at the first interim shareholders’ meeting of 2026.

II. Basic Information of the Guaranteed Party

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III. Main Content of the Guarantee Agreement

Unit: Ten Thousand Yuan Currency: RMB

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IV. Necessity and Reasonableness of the Guarantee

This time, the Company’s controlling subsidiary provides a guarantee for its subordinate company to meet the actual operational development needs. The controlling subsidiary of the Company can maintain good control over the guaranteed party and grasp its credit status in a timely manner. The risks of this guarantee matter are controllable, and it is necessary and reasonable. There is no situation that harms the interests of the Company and all shareholders, especially minority shareholders.

V. Board of Directors’ Opinion

The Board of Directors believes that this guarantee provided by the controlling subsidiary for its subordinate company is to meet the actual operational development needs and ensure the stable and continuous operation of its business, which aligns with the overall development strategy of the Company. The guaranteed party is a subsidiary within the consolidated financial statements of the Company, and the Company can effectively grasp its operational status and credit situation. The guarantee risk is within a controllable range and will not adversely affect the normal operation and business development of the Company, nor harm the interests of the Company and its shareholders.

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

As of the date of this announcement, the total amount of guarantees provided by the Company is 93.3 million yuan, accounting for 5.07% of the Company’s most recent audited net assets. Among them: the Company has provided a guarantee of 56.3 million yuan for Leshan Qingyuan Environmental Protection Engineering Co., Ltd., accounting for 3.06% of the Company’s most recent audited net assets; the controlling subsidiary within the consolidated financial statements provided a guarantee of 37 million yuan for its subsidiary, accounting for 2.01% of the Company’s most recent audited net assets. There are no overdue guarantees. The Company has no overdue external guarantees.

This announcement is hereby made.

Board of Directors of Leshan Electric Power Co., Ltd.

March 18, 2026

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