Announcement on Participating in the 2026 Zhejiang Regulatory Area Listed Companies Online Investor Reception Day and 2025 Annual Performance Briefing

Stock Code: 002403 Stock Abbreviation: Aishida Announcement No.: 2026-023 Aishida Co., Ltd. Announcement on Participating in the 2026 Zhejiang Regulatory Area Listed Companies Online Investor Reception Day and 2025 Annual Performance Briefing The Company and all members of the Board of Directors guarantee the truthfulness, accuracy, and completeness of the information disclosed, and are free from any false records, misleading statements, or material omissions. To further strengthen interaction with investors, Aishida Co., Ltd. (hereinafter referred to as the "Company") will participate in the "2026 Zhejiang Regulatory Area Listed Companies Online Investor Reception Day and 2025 Annual Performance Briefing" organized by the Zhejiang Securities Regulatory Bureau, hosted by the Zhejiang Listed Companies Association, and undertaken by Shenzhen All-China-Web Network Co., Ltd. The relevant matters are hereby announced as follows: This event will be held remotely online. Investors can log in to the "All-China-Web Roadshow" website (https://rs.p5w.net), follow the WeChat official account "All-China-Web Finance," or download the All-China-Web Roadshow APP to participate in this interactive exchange. The event will be held on May 13, 2026 (Wednesday) from 15:00 to 17:00. At that time, Mr. Chen Helin, Chairman of the Company, Ms. Lan Faqin, Independent Director, and Ms. Zhu Yuchen, Secretary of the Board, will be online to communicate and interact with investors on issues of concern regarding the Company's 2025 annual performance, corporate governance, development strategy, and operating conditions. All investors are welcome to participate enthusiastically. To improve the efficiency of interactive communication, we are soliciting questions from all investors who care about the Company in advance to widely gather investors' opinions and suggestions. Investors can visit http://ir.p5w.net/zj/ or scan the QR code below before 17:00 on May 12, 2026 (Tuesday) to enter the special page for question collection and submit your questions. The Company will answer the questions of concern to investors during the event. [Image: QR code for question submission] Special Announcement. Board of Directors of Aishida Co., Ltd. May 9, 2026