ST Untitled: Abnormal fluctuations in stock trading do not exist in undisclosed major events that should be disclosed.

ST Ming announcement said that the company's stock had a cumulative deviation of 12.40% in the closing prices for three consecutive trading days on May 18, 19, and 20, 2026, which was considered abnormal volatility. After self-inspection, the company did not find any undisclosed significant information that could affect stock prices through public media reports, and there have been no recent changes in the company's operations and internal/external environments. The company and its controlling shareholders have not withheld any material information that should have been disclosed, and the controlling shareholders have not engaged in buying or selling company stocks during the abnormal volatility period. Furthermore, the company's stock has been subject to "delisting risk warning" since April 30.