Design & Reuse

UMC Reports Sales for February 2011

TAIPEI, Taiwan, March 8, 2011-- United Microelectronics Corporation (NYSE:  UMC; TWSE: 2303) ("UMC"), today reported unaudited net sales for the month of February 2011.

Revenues for February 2011

Period

2011

2010

Y/Y Change

Y/Y (%)

M/M (%)

February

9,007,512

8,634,850

+372,662

+4.32%

-5.43%

Jan.-Feb.

18,532,567

17,235,303

+1,297,264

+7.53%

N/A

(*) All figures in thousands of New Taiwan Dollars (NT$), except for percentages.

Additional information about UMC is available on the web at http://www.umc.com.