UMC Reports Sales for March 2018

TAIPEI, Taiwan–(BUSINESS WIRE)–United Microelectronics Corporation (NYSE: UMC; TWSE: 2303) (“UMC”),
today reported unaudited net sales for the month of March 2018.

Revenues for March 2018

Period 2018 2017 Y/Y Change Y/Y (%)
March 12,412,192 12,751,189 -338,997 -2.66%
Jan.-Mar. 37,497,137 37,417,950 +79,187 +0.21%

(*) All figures in thousands of New Taiwan Dollars (NT$), except for
percentages
(**) All figures are consolidated

Additional information about UMC is available on the web at http://www.umc.com.

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Contacts

UMC
Investor Relations
Michael Lin, +
886-2-2658-9168, ext. 16900
[email protected]
or
David
Wong, + 886-2-2658-9168, ext. 16900
[email protected]