Superior Aviation Technology: Shareholders of Hangzheng Science and Technology plan to reduce their holdings of the company's shares by no more than 3%.

Announcement from Advanced Aviation Technology: Shareholder Aviation Certificate Technology Innovation Investment Co., Ltd. plans to reduce its holdings by no more than 896,000 shares, or 1% of the company's total share capital, through centralized bidding within 3 months after the disclosure date of this announcement. Additionally, they plan to reduce their holdings by no more than 1,792,100 shares, or 2% of the company's total share capital, through block trading. The selling price will be determined based on market prices. As of the disclosure date of this announcement, Aviation Certificate Technology Innovation holds 5.6742 million shares, accounting for 6.33% of the company's total share capital. This reduction plan will not have a significant impact on the company's governance structure or ongoing operations.