Changchun High-tech: The closing price deviation value of two consecutive trading days has accumulated to 20.00%.

Changchun High-tech Announcement: In the first half of 2025, the company achieved operating income of 6.603 billion yuan, a decrease of 0.54% compared to the same period of the previous year; achieved a net profit attributable to shareholders of the listed company of 983 million yuan, a decrease of 42.85% compared to the same period of the previous year. The company's stock trading price deviated by 20.00% on September 1 and September 2, 2025, which constitutes abnormal fluctuations in stock trading. There are no major matters related to the company that have not been disclosed but should have been disclosed.