Announcement on Abnormal Stock Trading Fluctuations of Suzhou SEMIC Technology Co., Ltd.

Securities Code: 300522

Securities Abbreviation: SEMIC Technology

Announcement No.: 2026-049

Announcement on Abnormal Stock Trading Fluctuations of Suzhou SEMIC Technology Co., Ltd.

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

I. Description of Abnormal Stock Trading Fluctuations

The stock trading price of Suzhou SEMIC Technology Co., Ltd. (hereinafter referred to as the "Company" or "This Company") (Securities Code: 300522, Securities Abbreviation: SEMIC Technology) has deviated from the daily closing price by more than 30.00% cumulatively over three consecutive trading days (July 9, 2026, July 10, 2026, and July 13, 2026). In accordance with the relevant provisions of the "Trading Rules of Shenzhen Stock Exchange," this constitutes an abnormal stock trading fluctuation.

II. Company's Verification and Clarification

Regarding the abnormal stock trading fluctuations of the Company, the Board of Directors has conducted verifications with the Company, its controlling shareholder, and its actual controller on related matters. The relevant situation is hereby described as follows:

1. The information previously disclosed by the Company requires no correction or supplementation.

2. The Company has not found any undisclosed material information in recent public media reports that may have or has had a significant impact on the Company's stock trading price.

3. There have been no significant changes in the Company's current operating conditions or its internal and external operating environment. The Company's main business remains colorant products. For complete operating data, please refer to the "Suzhou SEMIC Technology Co., Ltd. 2025 Annual Report" (Announcement No.: 2026-011) disclosed on the Juchao Information Network (http://www.cninfo.com.cn). As of the disclosure date of this announcement, the Company's production and operating conditions have not undergone significant changes compared to the 2025 Annual Report. Investors are urged to invest rationally and be aware of risks.

4. Upon verification, the Company, its controlling shareholder, and its actual controller have no undisclosed material matters concerning the Company, nor are there any material matters under planning.

5. Upon verification, the Company's controlling shareholder and actual controller have not engaged in any transactions of the Company's stock during the period of abnormal stock trading fluctuations.

6. Upon self-inspection, the Company has not violated any regulations regarding fair information disclosure.

III. Statement on No Undisclosed Information Requiring Disclosure