Inner Mongolia First Machine: Short-term stock price increase of 139.64%

Announcement of Neimeng Aeronautics: Since June 6, 2025, the closing price of the company's stock has increased by 139.64%, while the industry of "manufacture of railway, ship and aerospace equipment and other transportation equipment" has increased by 19.27%, and the Shanghai Stock Exchange Composite Index has increased by 8.81%. The short-term increase in the company's stock price is significantly higher than that of the industry and the Shanghai Stock Exchange during the same period, but there have been no major changes in the company's fundamentals. As of the close on August 13, 2025, the company's stock price was 28.86 yuan/share, reaching a historical high; the turnover was 41.97 billion yuan, with a large trading volume. Investors are advised to pay attention to the risks of trading in the secondary market, make rational decisions, and invest with caution.