Pioneer Fine Chemicals: Shareholder Jingjiang Yuli Jia has reduced their holding by 2.53%.

Vanguard Precision Technology Announcement: Shareholder Jingjiang Youlijia Enterprise Management Limited Partnership originally planned to reduce its holdings by no more than 6,071,400 shares, accounting for 3.00% of the company's total share capital, within 3 months after the disclosure date of this announcement through centralized bidding and block trading. From January 27, 2026 to February 26, 2026, they have already reduced holdings by 5,122,000 shares, accounting for 2.53%, at a price range of 61.53 to 73.88 yuan per share, cashing out 330 million yuan, and decided to terminate the reduction plan in advance. They currently hold 20,571,100 shares, accounting for 10.16%.