Chung Hsing Announces Disposal of Securities

1. Security Name: MediaTek Common Stock

2. Transaction Date: 2026/6/23~2026/6/23

3. Board Approval Date: Not applicable

4. Other Approval Dates: Approval Level: Approved by Chairman June 23, 2026

5. Transaction Quantity, Unit Price, and Total Transaction Amount: Transaction Quantity (in thousands of shares): 85 Unit Price (NT$): 4,647.56 Total Transaction Amount (NT$): 395,042,354

6. Gain (or Loss) from Disposal (not applicable for acquisition of securities): Gain from disposal: NT$22,290,953

7. Relationship with the Target Company: None

8. Cumulative Holdings of the Subject Securities (including this transaction) to Date, including Quantity, Amount, Ownership Percentage, and Restricted Rights (e.g., Pledge): Remaining Holdings: 25,000 shares, Amount: NT$109,632,763 Ownership Percentage: 0.002%, Rights Restrictions: None

9. Proportion of Securities Investments (including this transaction) under Article 3 of the 'Asset Acquisition and Disposal Rules for Publicly Issued Companies' to Total Assets and Equity Attributable to Owners of the Parent in the Most Recent Financial Statements, and the Amount of Working Capital: Percentage of Total Assets: 82.92% Percentage of Equity Attributable to Owners of the Parent: 119.09% Working Capital Amount: NT$8,285,327,000

10. Specific Purpose of Acquisition or Disposal: Investment portfolio management

11. Dissenting Director's Opinion on this Transaction: None

12. Whether this Transaction is a Related-Party Transaction: No

13. Counterparty and its Relationship with the Company: Not applicable

14. Date of Supervisor's Approval or Audit Committee's Consent: Not applicable

15. Previous Date of Material Information Disclosure on the Same Event: Not applicable

16. Other Explanatory Matters: On March 31, 2026, authorized traders were permitted to conduct securities transactions in the centralized market during the second quarter of 2026.