Notice of the 2025 Annual Shareholders' Meeting

Shandong Tiansheng High-Performance Materials Co., Ltd. (hereinafter referred to as "the Company") convened the third meeting of the fifth board of directors on March 27, 2026, and approved the proposal regarding the 2025 Annual Shareholders' Meeting.

The meeting is scheduled for May 8, 2026 (Friday) at 14:30. The shareholders' meeting will be conducted in a hybrid format, allowing for both in-person attendance and online voting. The details are as follows:

Basic Information of the Shareholders' Meeting

1. Shareholders' Meeting: 2025 Annual Shareholders' Meeting

2. Shareholders' Meeting Type: General Meeting

3. This meeting complies with the Company Law of the People's Republic of China and the relevant regulations of the Shenzhen Stock Exchange.

4. Meeting Time: (1) In-person meeting time: May 8, 2026, at 14:30 (2) Online voting time: Through the Shenzhen Stock Exchange's voting system, the specific time is from May 8, 2026, 9:15-9:25, 9:30-11:30, 13:00-15:00.

5. Meeting Notice Date: April 28, 2026

6. Attendance Scope: (1) Shareholders holding ordinary shares of the Company or their proxies. (2) Company directors, senior management personnel. (3) Legal advisors and other relevant personnel.

7. Venue: Shandong Province, Linyi City, Economic Development Zone, Shandong Tiansheng High-Performance Materials Co., Ltd.

Meeting Agenda Items

1. This meeting will consider the following proposals: