UMC Announces Completion of Cancellation of Restricted Employee Share Rights and Capital Change Registration

1. Date of regulatory authority approval for capital reduction: 115/08/10 2. Date of completion of capital change registration: 115/08/10 3. Impact on financial statements (including differences in paid-in capital and outstanding shares, and impact on book value per share): (1) Before cancellation of issued restricted employee share rights: The Company's paid-in capital was NT$125,769,848,700, with 12,546,433,870 shares outstanding, and book value per share was NT$35.38. (2) After cancellation of issued restricted employee share rights: The Company's paid-in capital was NT$125,700,938,990, with 12,539,542,899 shares outstanding, and book value per share was NT$35.40. (Note: Book value per share is calculated based on the audited consolidated financial statements for the second quarter of year 115.) 4. Planned share exchange program: Not applicable 5. Number of listed common shares after capital reduction: Not applicable 6. Ratio of listed common shares to total issued common shares after capital reduction (post-reduction listed shares / post-reduction issued shares): Not applicable 7. Measures for low share liquidity if post-reduction listed shares are less than 60 million and less than 25%: Not applicable 8. Other matters to be disclosed: None.