【RITEK】Announcement: Company Acquires Securities

1. Securities name: Sendy Technology Ordinary Shares 2. Transaction dates: 2026/4/28~2026/4/29 3. Date of board of directors' approval: Not applicable 4. Other approval dates: Approval level: Chairman's approval April 29, 2026 (Republic of China calendar year 115) 5. Number of transactions, unit price, and total transaction amount: Number of transactions (thousand shares): 820 Unit price (NTD): 369.67 Total transaction amount (NTD): 303,130,405 6. Disposal profit (or loss) (not applicable to acquisition of securities): Not applicable 7. Relationship with the target company: None 8. As of now, the accumulated number, amount, shareholding ratio, and restricted rights (e.g., pledge status) of these securities (including this transaction): Remaining holdings: 1,094,000 shares, Amount: NT$411,268,601 Shareholding ratio: 0.71%, Restricted rights: None 9. As of now, the proportion of securities investments (including this transaction) listed in Article 3 of the "Regulations Governing the Acquisition and Disposal of Assets by Public Companies" to the total assets and owner's equity attributable to the parent company in the latest financial report, and the amount of working capital in the latest financial report: Proportion of total assets: 77.18% Proportion of owner's equity attributable to the parent company: 108.11% Working capital amount: NT$8,285,327 thousand 10. Specific purpose of acquisition or disposal: Investment portfolio 11. Opinions of dissenting directors on this transaction: None 12. Is this a related party transaction: No 13. Counterparty and its relationship with the company: Not applicable 14. Date of supervisors' approval or audit committee's consent: Not applicable 15. Date of previous material information announcement on the same event: Not applicable 16. Other matters to be specified: Authorization was granted on 2026/03/31 for authorized traders to conduct securities transactions in the centralized trading market during Q2 2026.