2498 HTC: Subsidiary Announces Investment in BlackRock Fund

Release Date: June 27, 2026 Statement Date: June 26, 2026 Statement Time: 17:42:14 Company Code: 2498 Company Name: HTC Corporation Subject: Announcement on behalf of key subsidiary H.T.C. (B.V.I.) Corp. regarding investment in BlackRock fund Compliance Clause: Item 24 Event Date: June 26, 2026

1. Name and nature of the subject asset (if preferred shares, specify terms such as dividend rate): BlackRock Systematic Total Alpha Fund Ltd. – Class A

2. Event Date: 06/26/2026

3. Number of units, unit price, and total transaction amount: Number of units: up to 18,000 shares Unit price: USD 1,000 Total transaction amount: up to USD 18,000,000

4. Counterparty and its relationship with the company (if individual and not a related party, name may be omitted): BlackRock Asset Management; unrelated party

5. If counterparty is a related party, state reason for selection, prior owner, relationship among prior owner, company and counterparty, transfer date and amount: Not applicable

6. If the asset’s owner within the past five years was a related party of the company, disclose the related party’s acquisition and disposal date, price, and relationship with the company at the time: Not applicable

7. Matters related to disposal of receivables (including types of collateral, and if receivables from related parties, disclose names and book value): Not applicable

8. Gain (or loss) from disposal (not applicable for acquisition of securities) (if deferred, provide table of recognition): Not applicable

9. Delivery or payment terms (including payment schedule and amounts), contractual restrictions, and other important agreements: As per contract terms

10. Decision-making process for the transaction, reference basis for pricing, and approving authority: As per contract; approved according to the company's 'Procedures for Acquisition or Disposal of Assets'

11. Net asset value per share of the securities-issuing company: USD 31,575.50

12. Is the private placement reference price more than 20% different from the per-share transaction price?: No

13. Cumulative holdings (including this transaction) of the securities: quantity, amount, ownership percentage, and restrictions (e.g., pledge status): Cumulative quantity: up to 18,000 shares Cumulative amount: up to USD 18,000,000 Ownership percentage: 0.2% Restrictions: None

14. Proportion of cumulative private placement securities investments (including this transaction) to total assets and equity attributable to owners of parent in the latest financial statements, and amount of working capital: Percentage of total assets: 34.52% Percentage of equity attributable to owners of parent: 48.34% Working capital: TWD -7,051,317 thousand

15. Manager and brokerage fees: None

16. Specific purpose or use of the acquisition or disposal: Capital deployment

17. Dissenting opinions from directors regarding this transaction: None

18. Is this a related-party transaction?: No

19. Board approval date: Not applicable

20. Date of supervisor approval or audit committee consent: Not applicable

21. Did the accountant issue a non-reasonable opinion?: No

22. Name of accounting firm: Yuan Ho United Certified Public Accountants

23. Name of accountant: Juan-Chiung Hua

24. Accountant license number: Ministry of Finance Certificate Registration (VI) No. 2719

25. Other explanatory matters: The above TWD amounts are calculated at an exchange rate of USD 1 to TWD 31.5755. Actual values will be based on the exchange rate on the transaction date.