Announcement on Abnormal Stock Trading Fluctuations and Risk Warning

Stock Code: 300862 Stock Abbreviation: Blue Shield Optoelectronics Announcement Number: 2026-048

Anhui Blue Shield Optoelectronics Co., Ltd.

Announcement on Abnormal Stock Trading Fluctuations and Risk Warning

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.

Key Content Highlights:

1. Anhui Blue Shield Optoelectronics Co., Ltd. (hereinafter referred to as the "Company" or "this Company") experienced a cumulative increase in closing price deviation of over 30% for its stock over two consecutive trading days (August 14, 2026, and August 17, 2026). This constitutes an abnormal stock trading fluctuation in accordance with the "Trading Rules of Shenzhen Stock Exchange" and other relevant regulations.

2. Upon self-inspection and inquiry of the Company's controlling shareholder, actual controller, and their concerted parties, it is confirmed that as of the disclosure date of this announcement, there are no major undisclosed matters.

3. Risk of declining company operating performance. The Company's operating revenue in 2025 was 39,897.11 million yuan, a year-on-year decrease of 34.53%; net profit attributable to shareholders of the listed company was -8,876.65 million yuan, a year-on-year decrease of 1,468.72%. In the first quarter of 2026, the Company's operating revenue was 8,811.63 million yuan, a year-on-year decrease of 13.20%; net profit attributable to shareholders of the listed company was -866.43 million yuan, a year-on-year decrease of 271.99%. Overall, the Company's overall operating performance still faces significant challenges. Investors are urged to invest rationally and be aware of the risks.

4. The Company's trailing P/E ratio is negative. According to industry data released by China Securities Index Co., Ltd., as of August 14, 2026, the trailing P/E ratio for the "Instrument Manufacturing" industry in which the Company is located was 69.90, and the price-to-book ratio was 5.50. The Company's trailing P/E ratio is negative, and its price-to-book ratio is 4.45. The Company's stock price has experienced significant short-term fluctuations, with a risk of rapid rise followed by a sharp decline. Investors are urged to invest rationally and be aware of the risks.

5. Risk of the transaction being suspended, halted, or cancelled. The Company plans to acquire the controlling stake in Suzhou Lancuang Technology Co., Ltd. and raise supporting funds (hereinafter referred to as the "Transaction") by issuing shares and paying cash to seven counterparties including Ms. Li Xia. The Transaction requires multiple approval procedures before it can be implemented, including but not limited to the Company's board of directors reviewing the Transaction plan again, the Company's shareholders' meeting approving the Transaction plan, the counterparties completing all necessary internal decision-making procedures, and obtaining approval from the Shenzhen Stock Exchange and registration from the China Securities Regulatory Commission. The Transaction is subject to approval risks, and may be suspended, halted, or cancelled, posing significant uncertainty for its future progress. Investors are urged to invest rationally and be aware of the risks.

I. Introduction to Abnormal Stock Trading Fluctuations

The Company's stock price has experienced a cumulative increase in closing price deviation of over 30% for two consecutive trading days (August 14, 2026, and August 17, 2026), which constitutes an abnormal stock trading fluctuation in accordance with the "Trading Rules of Shenzhen Stock Exchange" and other relevant regulations.