UMC Reports Sales for September 2008

TAIPEI, Taiwan -- Oct 08, 2008 -- United Microelectronics Corporation (UMC) today reported unaudited net sales for the month of September 2008.

Revenues for September 2008

Period	2008	2007	Y/Y Change	Y/Y(%)	M/M(%)
September	8,051,904	10,542,277	-2,490,373	-23.62%	-1.39%
Jan.-Sep.	73,989,098	79,150,478	-5,161,380	-6.52%	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 .