Notice of the First Extraordinary General Meeting of Shareholders in 2026

Securities Code: 300789 Securities Abbreviation: Tangyuan Electric Announcement Number: 2026-022

Chengdu Tangyuan Electric Power Co., Ltd.

Notice of the First Extraordinary General Meeting of Shareholders in 2026

The Company and the Board of Directors guarantee that the information disclosed is true, accurate, and complete, and contains no false records, misleading statements, or significant omissions.

In accordance with the relevant provisions of the "Company Law" and the "Articles of Association," and after deliberation and approval by the Ninth Meeting of the Fourth Board of Directors of Chengdu Tangyuan Electric Power Co., Ltd. (hereinafter referred to as the "Company" or "this Company"), the Board of Directors has decided to convene the First Extraordinary General Meeting of Shareholders of the Company in 2026 on June 29, 2026. The relevant matters of this meeting are hereby notified as follows:

I. Basic Information of the Meeting

1. Session of the Shareholders' Meeting: First Extraordinary General Meeting of Shareholders in 2026

2. Convener of the Shareholders' Meeting: Board of Directors

3. The convening and holding of this meeting comply with the relevant provisions of the "Company Law of the People's Republic of China," the "Shenzhen Stock Exchange GEM Stock Listing Rules," the "Shenzhen Stock Exchange Listed Company Self-Regulatory Management Guidelines No. 2 - Standardized Operation of GEM Listed Companies," and other laws, administrative regulations, departmental rules, normative documents, and the "Articles of Association."

4. Meeting Time:

(1) On-site Meeting Time: 15:00 on June 29, 2026

(2) Online Voting Time: The specific time for online voting through the Shenzhen Stock Exchange trading system is June 29, 2026, from 9:15-9:25, 9:30-11:30, and 13:00-15:00; the specific time for voting through the Shenzhen Stock Exchange internet voting system is any time from 9:15 to 15:00 on June 29, 2026.

1. Method of Convening the Meeting: Combination of on-site voting and online voting.

2. Equity Registration Date of the Meeting: June 23, 2026

3. Attendees:

(1) All shareholders of the Company holding voting shares that are registered with the Shenzhen Branch of China Securities Depository and Clearing Corporation Limited as of the close of business on June 23, 2026, are entitled to attend this shareholders' meeting and may entrust an agent to attend the meeting and vote in writing. The agent of the shareholder does not need to be a shareholder of the Company.

(2) Directors and senior management of the Company;

(3) Lawyers hired by the Company;

(4) Other personnel who are required to attend the shareholders' meeting according to relevant regulations.

1. Meeting Location: Conference Room 8, Company Building, No. 9, Wuke West 1st Road, Wuhou District, Chengdu, Sichuan Province

II. Matters to be Reviewed at the Meeting

1. Proposal List for this Shareholders' Meeting