Stock code: 688521 Stock abbreviation: VeriSilicon Announcement No.: 2025-009

VeriSilicon Microelectronics (Shanghai) Co., Ltd

Announcement of abnormal fluctuations in stock trading

The board of directors and all directors of the company guarantee that there are no false records, misleading statements or material omissions in the content of this announcement, and assume legal responsibility for the authenticity, accuracy and completeness of its content in accordance with the law.

Important Content Notes:

VeriSilicon Microelectronics (Shanghai) Co., Ltd. (hereinafter referred to as "VeriSilicon" or the "Company") stock

The closing price increase for three consecutive trading days (March 3, March 4, and March 5, 2025).

If the deviation exceeds 30% cumulatively, according to the relevant provisions of the "Shanghai Stock Exchange Trading Rules" and the "Rules for Real-time Monitoring of Abnormal Trading of Stocks on the Science and Technology Innovation Board of the Shanghai Stock Exchange", it is a situation of abnormal stock trading.

After the company's self-inspection and sent a letter to VeriSilicon Limited, the company's largest shareholder, to confirm, as of this company

As of the disclosure date, the Company and its largest shareholder did not have any material matters affecting the abnormal fluctuations of the Company's stock trading, nor did they have other material information that should be disclosed but was not disclosed, including but not limited to major matters such as mergers and acquisitions, share issuance, debt restructuring, business restructuring, asset divestitures and asset injections involving the Company. The company's current daily operations are normal and have not undergone major changes.

The company's relevant results are detailed in the "2024 Annual Results Express" disclosed on February 28, 2025

Announcement (Announcement No. 2025-008).

1. The specific situation of abnormal fluctuations in stock trading

Trading of the company's shares for three consecutive trading days (March 3, March 4 and March 5, 2025)

The deviation of the closing price increase exceeds 30%, which is an abnormal fluctuation in stock trading according to the relevant provisions of the "Shanghai Stock Exchange Trading Rules" and the "Detailed Rules for Real-time Monitoring of Abnormal Trading of Stocks on the Science and Technology Innovation Board of the Shanghai Stock Exchange".

2. The relevant situation that the company pays attention to and verifies

In view of the abnormal fluctuation of the company's stock trading, after the company's self-examination and the company's largest shareholder VeriSilicon Limited sent a letter to confirm, the relevant situation is hereby explained as follows:

(1) Daily operations

According to the company's self-inspection, the company's current production and operation activities are normal and no major changes have occurred. There has been no major adjustment in the market environment or industry policies, and the internal production and operation order is normal.

(2) Major matters

After the company's self-inspection, it sent a letter to VeriSilicon Limited, the largest shareholder of the company, to confirm that, as of the disclosure date of this announcement, the company and the largest shareholder have no material information that should be disclosed but has not been disclosed; There are no major matters involving the company in the planning stage, including but not limited to mergers and acquisitions, share issuance, debt restructuring, business restructuring, asset divestitures and asset injections.

(3) Circumstances such as media reports and market rumors

After the company's self-inspection, the company did not find that there were media reports and market rumors that may have a significant impact on the company's stock trading price. The relevant information is subject to the announcements published on the website of the Shanghai Stock Exchange (www.sse.com.cn) and designated media.

(4) Other price-sensitive information

After verification, the company did not find other major events that may have a greater impact on the company's stock price, and the company's largest shareholder, VeriSilicon Limited, and its concerted actors, directors, supervisors, and senior management did not buy and sell the company's shares during the abnormal fluctuation of the company's stock trading.

3. Statement of the Board of Directors

The Board of Directors of the Company confirms that, in addition to the matters that have been disclosed in accordance with the regulations, the Company has no matters that should be disclosed but have not been disclosed in accordance with the Rules for the Listing of Stocks on the Science and Technology Innovation Board of the Shanghai Stock Exchange and other relevant provisions or plans and intentions related to such matters, and the Board of Directors has not been informed of the information that the Company should disclose but has not disclosed in accordance with the Rules for the Listing of Stocks on the Science and Technology Innovation Board of the Shanghai Stock Exchange and other relevant provisions that may have a greater impact on the trading price of the Company's shares and its derivatives.

Fourth, relevant risk warning

The company solemnly reminds investors that "Shanghai Securities News", "China Securities Journal", "Securities Times" and "Securities Daily" are the company's designated information disclosure newspapers, and the Shanghai Stock Exchange website (www.sse.com.cn) is the company's designated information disclosure website. All information of the company is subject to the information published in the above-mentioned designated media. Investors are advised to invest rationally and pay attention to investment risks.

5. Attachments to online announcements

Reply to the "Consultation Letter on Abnormal Fluctuations in Stock Trading of VeriSilicon Microelectronics (Shanghai) Co., Ltd."

The announcement is hereby made.

Board of Directors of VeriSilicon Microelectronics (Shanghai) Co., Ltd

March 6, 2025