TAIPEI, Taiwan, Sept. 9 /Xinhua-PRNewswire-FirstCall/ -- United Microelectronics Corporation (NYSE: UMC), (UMC) today reported unaudited net sales for the month of August 2008.

    Revenues for August 2008

      Period          2008         2007    Y/Y Change      Y/Y(%)   M/M(%)
      August     8,165,231   10,433,413    -2,268,182    -21.74%   -4.35%
    Jan.-Aug.   65,937,194   68,608,201    -2,671,007     -3.89%      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 .

    Contacts:

     Bowen Huang or I Cheng Lu
     UMC, Investor Relations
     Tel:   +886-2-2700-6999, ext. 6957
     Email: bowen_huang@umc.com or i_cheng_lu@umc.com

Web site: http://www.umc.com/