ASE Technology Holding Announces Disposal of MediaTek Ordinary Shares by Subsidiary Etron Technology

1. Securities Name: MediaTek Inc. Ordinary Shares 2. Transaction Date: 115/4/22~115/5/6 3. Date of Board Resolution Approval: May 6, 115 (R.O.C.) 4. Other Approval Dates: Not applicable 5. Transaction Quantity, Unit Price, and Total Transaction Amount: Transaction Quantity: 135,000 ordinary shares of MediaTek Inc. Average Price Per Share: NT$2,599.63 Total Transaction Amount: NT$350,950,000 6. Disposal Profit (or Loss) (Not applicable for acquired securities): Disposal Profit is NT$151,444,231 7. Relationship with the Transacted Company: None 8. Cumulative Holdings of This Security (Including this transaction) to Date (Quantity, Amount, Shareholding Ratio, and Restriction Conditions (e.g., pledge status)): Cumulative Holdings Quantity: 60,000 ordinary shares Cumulative Holdings Amount: NT$88,669,231 Shareholding Ratio: 0.0037% Conditions of Restriction: None 9. To Date, the Proportion of Securities Investments (Including this transaction) listed in Article 3 of the "Regulations Governing the Acquisition or Disposal of Assets by Publicly Issued Companies" to the Total Assets and Equity Attributable to Owners of the Parent Company in the Latest Financial Report, and the Amount of Working Capital in the Latest Financial Report: Proportion to Total Assets: 19.62% Proportion to Shareholders' Equity: 23.79% Working Capital: NT$ -3,568,201 thousand 10. Specific Purpose of Acquisition or Disposal: Financial Investment 11. Dissenting Directors' Opinions on This Transaction: None 12. Is This Transaction a Related Party Transaction? No 13. Counterparty to the Transaction and Its Relationship with the Company: Not applicable 14. Date of Supervisor's Approval or Audit Committee's Consent: May 6, 115 (R.O.C.) 15. Date of Previous Material Information Announcement on the Same Matter: Not applicable 16. Other Matters to be Stated: None.