Altek Announces Full Receipt of Proceeds from First Private Placement of Common Shares in 2025 and Capital Increase Benchmark Date

1. Date of Event: June 25, 2026 2. Company Name: Altek Corporation 3. Relationship with Company (Please enter '本公司' or 'Subsidiary'):本公司 (本公司) 4. Cross-shareholding Ratio: Not applicable 5. Reason for Occurrence: (1) Approved by the ordinary general meeting of shareholders held on June 30, 2025, authorizing a private placement of up to NT$1 billion. (2) This private placement involved 1,873,000 common shares issued at NT$24.03 per share, raising a total of NT$45,008,190, with full payment received on June 25, 2026. (3) Benchmark date for this private placement capital increase: June 25, 2026. 6. Countermeasures: None 7. Other Matters to be Disclosed (If the subject is a publicly issued company or above, this significant information also qualifies as a matter under Article 7, Paragraph 9, Item 9 of the Enforcement Rules of the Securities and Exchange Act, significantly affecting shareholder rights or securities prices): For details regarding this private placement of common shares, please visit the private placement section of the Public Information Observation Station.