Design & Reuse

UMC Reports Sales for February 2012

Taipei, Taiwan, March 8, 2012--United Microelectronics Corporation (NYSE: UMC; TWSE: 2303) (“UMC”), today reported unaudited net sales for the month of February 2012.

Revenues for February 2012
                                                                                      

Period 2012 2011 Y/Y Change Y/Y (%) M/M (%)
February 7,523,441 9,007,512 -1,484,071 -16.48% -6.55%
Jan.-Feb. 15,574,363 18,532,567 -2,958,204 -15.96% 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.