UMC Reports Sales for April 2014

Taipei, Taiwan, May 9, 2014--United Microelectronics Corporation (NYSE: UMC; TWSE: 2303) (“UMC”), today reported unaudited net sales for the month of April 2014.

Revenues for April 2014

Period	2014	2013	Y/Y Change	Y/Y (%)
April	11,528,740	10,280,727	+1,248,013	+12.14%
Jan.-Apr.	43,222,325	38,062,143	+5,160,182	+13.56%

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