UMC Reports Sales for June 2013

Taipei, Taiwan -- July 10, 2013--United Microelectronics Corporation (NYSE: UMC; TWSE: 2303) (“UMC”), today reported unaudited net sales for the month of June 2013.

Revenues for June 2013

Period	2013	2012	Y/Y Change	Y/Y (%)
June	10,760,866	9,680,992	+1,079,874	+11.15 %
Jan.-June	59,686,120	56,646,764	+3,039,356	+5.37 %

(*) 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.