UMC Reports Sales for February 2014

Taipei, Taiwan, March 10, 2014--United Microelectronics Corporation (NYSE: UMC; TWSE: 2303) (“UMC”), today reported unaudited net sales for the month of February 2014.

Revenues for February 2014

Period	2014	2013	Y/Y Change	Y/Y (%)
February	10,341,536	8,730,655	+1,610,881	+18.45%
Jan.-Feb.	20,404,154	18,182,771	+2,221,383	+12.22%

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

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