UMC Reports Sales for November 2012

Taipei, Taiwan, December 7, 2012--United Microelectronics Corporation (NYSE: UMC; TWSE: 2303) (“UMC”), today reported unaudited net sales for the month of November 2012.

Revenues for November 2012

Period	2012	2011	Y/Y Change	Y/Y (%)	M/M (%)
November	9,010,065	8,065,077	+944,988	+11.72%	-2.92%
Jan.-Nov.	98,201,338	97,774,822	+426,516	+0.44%	N/A

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

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