TAIPEI, Taiwan, Dec. 8 /PRNewswire-Asia-FirstCall/ -- United Microelectronics Corporation (NYSE: UMC), (UMC) today reported unaudited net sales for the month of November 2009.

    Revenues for November 2009

    Period          2009          2008     Y/Y Change     Y/Y(%)     M/M(%)
    November    9,156,066     6,024,577    +3,131,489    +51.98%     -1.51%
    Jan.-Nov.  79,324,840    87,920,369    -8,595,529     -9.78%        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:

     Phil Lee / Tien Yu Tseng
     UMC, Investor Relations
     Tel:    +886-2-2700-6999, ext. 6957
     Email:  phil_lee@umc.com
             tien_yu_tseng@umc.com

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