UMC Reports Sales for June 2012

TAIPEI, Taiwan, July 9, 2012 /PRNewswire-Asia/ — United Microelectronics Corporation (NYSE: UMC; TWSE: 2303) (“UMC”) today reported unaudited net sales for the month of June 2012.

    Revenues for June 2012
    ----------------------
            Period                   2012           2011            Y/Y Change           Y/Y (%)       M/M (%)
            ------                   ----           ----            ----------           -------        -------
             June               9,289,147      9,185,722                        +103,425         +1.13%         +0.9%
             ----               ---------      ---------                        --------         -----          ----
           Jan.-June           51,385,287     56,267,539                      -4,882,252         -8.68%          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
UMC, Investor Relations
Tel: + 886-2-2658-9168, ext. 16957
Email: bowen_huang@umc.com

SOURCE United Microelectronics Corporation