UMC Reports Sales for May 2010

USA - English

• USA - English

    TAIPEI, Taiwan, June 8 /PRNewswire-Asia/ -- United Microelectronics
Corporation (NYSE: UMC; TAIEX: 2303), (UMC) today reported unaudited net sales
for the month of May 2010.



    Revenues for May 2010

    Period           2010          2009    Y/Y Change     Y/Y(%)    M/M(%)
    May        10,090,157     7,514,440    +2,575,717    +34.28%    +8.27%
    Jan.-May   46,124,675    25,229,948   +20,894,727    +82.82%      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:

     Richard Yu
     UMC, Investor Relations
     Tel:   +886-2-2700-6999, ext. 6951
     Email: [email protected]

SOURCE United Microelectronics Corporation