Atlas Sunlight Power Group Co., Ltd. Progress Announcement on Providing Credit Guarantee for Subsidiaries

Stock Code: 688472 Stock Short Name: JA SOLAR Announcement No.: 2026-011

JA Solar Power Group Co., Ltd. Announcement on the Progress of Providing Credit Line Guarantee to a Controlling Subsidiary

The board of directors of the Company and all directors warrant that the contents of this announcement contain no false records, misleading statements, or material omissions, and assume legal responsibility for the truthfulness, accuracy, and completeness of the contents.

Key Matters to Note:

● Guaranteed Party and Basic Information

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Note: The above guarantee balance is the amount under the maximum-amount guarantee contract separately signed for the particular guaranteed party only; it does not include the amount under the guarantee contracts that provide shared quotas signed for multiple guaranteed parties.

● Cumulative Credit Line Guarantee Information

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I. Overview of the Guarantee

(I) Basic Information of the Guarantee

From February 28, 2026 to March 27, 2026, due to matters such as the application by JA Solar Power Group Co., Ltd. (the “Company”) subsidiaries for comprehensive bank credit lines, the Company has, in total, newly added RMB 251,440 million of joint-and-several liability guarantees without counter-guarantees, as detailed in the table below.

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Note: The above guarantee amounts mainly represent the Company’s maximum guarantee额度 provided to its subsidiaries. The actual guarantee amount incurred will not exceed these quotas. The scope of guarantee obligations shall be determined by the guarantees arising from the financing credit line applications by subsidiaries to banks and other financial institutions, as well as other businesses.

Because the internal approval timelines for the credit lines of financial institutions differ from the signing timelines of the credit line guarantee agreements, upon the requirements of financial institutions, the guarantee commencement date is aligned with the internal approved credit line quota timeline, which results in the guarantee commencement date being different from the signing date of the credit line guarantee agreement.

(II) Internal Decision-Making Procedure

On November 28, 2025, the Company convened the 12th meeting of the second session of the board of directors and the 10th meeting of the second session of the board of supervisors, and on December 16, 2025, the Company convened its 2025 first extraordinary general meeting of shareholders, at which the proposed “2026 Annual Credit Line and Guarantee Quota Forecast” was deliberated and approved, respectively. It was agreed that, within 2026, guarantees would be provided for credit lines and funding-related business to controlling subsidiaries. The guarantee quotas involved shall not exceed RMB 55.265 billion (or the equivalent in foreign currency). The board of directors proposes that the shareholders’ meeting authorize the chairman of the Company or the general manager to determine specific guarantee matters within the above quotas and to sign agreements and other documents related to the guarantees.

Within the guarantee quota approved by the above-mentioned shareholders’ meeting, this guarantee does not require a further fulfillment of deliberation procedures by the board of directors or the shareholders’ meeting.

II. Basic Information of the Guaranteed Party

(I) Basic Information

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Note: The above financial data is based on the standalone basis

(II) Information on Dishonesty of the Guaranteed Party

As of the date of disclosure of this announcement, the guaranteed party is not a dishonest party subject to enforcement.

III. Necessity and Reasonableness of the Guarantees

This guarantee matter is mainly to ensure that the Company and its controlling subsidiaries’ needs for production and business operations and business development are met, and also to align with the current business situation. It complies with the Company’s overall production and operating plans, and will help meet the Company’s needs for daily capital use and business development. The guaranteed parties are subsidiaries under the scope of the Company’s consolidated financial statements. Overall, the guarantee risks are controllable, will not affect the interests of the Company’s shareholders, and are necessary and reasonable.

IV. Opinions of the Board of Directors

The board of directors believes that the Company’s external guarantees are all to meet the Company and its subsidiaries’ operating needs, which are beneficial for promoting the development of business operations of the Company and its subsidiaries. The guaranteed parties are all controlling subsidiaries or wholly-owned subsidiaries of the Company. Their asset and credit conditions are good, and they have the capacity to repay debts. Overall, the guarantee risks are controllable. The board of directors believes that the above guarantees have not harmed the interests of the Company and all its shareholders and comply with relevant provisions of laws and regulations, normative documents, and the “Articles of Association of the Company.” There is no circumstance where the interests of the Company and the Company’s shareholders, particularly the interests of minority shareholders, are harmed.

V. Total Amount of External Guarantees and Number of Overdue Guarantees

As of the date of disclosure of this announcement, the Company’s guarantee balance provided for subsidiaries within the scope of consolidated statements for credit line business is RMB 4,089,783 million, accounting for 178.58% of the Company’s audited net assets in the latest period. As of the date of disclosure of this announcement, other than counter-guarantees provided on the basis of the Company’s and controlling subsidiaries’ own debts, the Company has not provided guarantees to other external third parties, and there are also no overdue guarantees.

This announcement is hereby given.

Board of Directors of JA Solar Power Group Co., Ltd.

March 28, 2026

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