ANNOUNCEMENT UPDATE -   12:00pm 10/01 (Taiwan time)

UMC Group would like to report the following news regarding our earthquake recovery status:

1. As of today, UMC Group has returned to 100% pre-earthquake production levels in all of our facilities in Hsinchu. Furthermore, our power supply needs are being fully met and we foresee no further interruption of production.
    
2. There is no change in our earlier estimates for revenue losses resulting from interruption of production at UMC Group.
    
3. In addition to the NT$300 million (US$ 9.5 million) pledge from UMC Group, our employees continue to make individual donations towards disaster relief. Employees in our USA office have also donated about US$20,000 dollars to Taiwanese charitable institutes, and UMC Group (USA) has committed to match all employee donations with equal contributions.

Finally, we would like to thank our equipment and material suppliers for their tremendous support and responsiveness during this crisis. Without their efforts, it would have been difficult for us to return to full production in such a short time frame. We would also like to thank all UMC Group customers and shareholders for their patience and understanding over the last ten days.