[Temporary Announcement] Huaneng Rubber: Announcement of Resolutions of the Seventh Meeting of the Fourth Board of Directors

Announcement number: 2025-027

Securities code: 832037 Securities abbreviation: Huaneng Rubber Sponsoring broker: Shenwan Hongyuan underwriting and sponsoring

Anhui Huaneng Medical Rubber Products Co., Ltd.

Announcement of Resolutions of the Seventh Meeting of the Fourth Board of Directors

The company and all members of the board of directors guarantee that the contents of the announcement are true, accurate and complete, and that there are no false records, misleading statements or major omissions, and bear individual and joint legal liability for the authenticity, accuracy and completeness of the contents.

1. Meeting convening and attendance

(1) Meeting status

1. Meeting time: December 29, 2025

2. Meeting method: √On-site meeting □Electronic communication meeting

3. Meeting place: company conference room

4. Time and method of issuing board meeting notice: by communication on December 18, 2025 5. Meeting host: Chairman Mr. Sheng Rui

5. Personnel attending the meeting: members of the Board of Supervisors, persons in charge of information disclosure and senior management personnel of the company 7. Legal and compliance instructions for the convening:

The meeting was held in compliance with the relevant provisions of the Company Law of the People's Republic of China and the Articles of Association.

(2) Meeting attendance

The meeting should be attended by 5 directors, and 5 directors should be present and authorized to attend.

2. Proposal review status

(1) Consideration and approval of the “Proposal on Changing the Accounting Firm for 2025”

1. Contents of the motion:

After comprehensive consideration of the company's future development and the needs of audit work, the company has reached an agreement with Anhui Huaming Accounting Firm (General Partnership) and plans to appoint Daxin Accounting Firm (Special General Partnership) as the company's auditor.

Announcement number: 2025-027

The audit agency will provide audit services to the company in 2025, with a term of one year. For details, please refer to the "Announcement on Changes to the Accounting Firm for 2025" (2025-028) disclosed by the company on the official website of the National Equities Exchange and Quotations (www.neeq.com.cn) on December 30, 2025.

2. Avoidance of voting:

This proposal does not involve related transactions and there is no need to avoid voting.

3. Voting results of the motion: 5 votes in favor; 0 votes against; 0 abstentions.

4. Submit the voting status of the shareholders’ meeting:

This proposal still needs to be submitted to the shareholders' meeting for review.

(2) Consideration and approval of the “Proposal on Proposing to Convene the Company’s First Extraordinary Shareholders’ Meeting in 2026”

1. Contents of the motion:

The company plans to hold the first extraordinary shareholders' meeting of 2026 on January 15, 2026 and review relevant proposals. 2. Avoidance of voting:

This proposal does not involve related transactions and there is no need to avoid voting.

3. Voting results of the motion: 5 votes in favor; 0 votes against; 0 abstentions.

4. Submit the voting status of the shareholders’ meeting:

This proposal does not need to be submitted to the shareholders' meeting for review.

3. Documents for reference

1. The "Resolution of the Seventh Meeting of the Fourth Board of Directors of Anhui Huaneng Medical Rubber Products Co., Ltd." signed and confirmed by the directors attending the meeting.

Anhui Huaneng Medical Rubber Products Co., Ltd. Board of Directors

December 30, 2025