UMC Reports Sales for June 2015

Taipei, Taiwan, July 9, 2015--United Microelectronics Corporation (NYSE: UMC; TWSE: 2303) (“UMC”), today reported unaudited net sales for the month of June 2015.

Revenues for June 2015

Period	2015	2014	Y/Y Change	Y/Y (%)
June	12,059,987	12,410,597	-350,610	-2.83%
Jan.-June	75,661,198	67,562,936	+8,098,262	+11.99%

(*) 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.