UMC Reports Sales for August 2013

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

Revenues for August 2013

Period	2013	2012	Y/Y Change	Y/Y (%)
August	10,998,405	10,354,681	+643,724	+6.22%
Jan.-Aug.	82,242,377	77,358,981	+4,883,396	+6.31%

(*) 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.