TAIPEI, Taiwan — (BUSINESS WIRE) — January 8, 2018 — United Microelectronics Corporation (NYSE: UMC; TWSE: 2303) (“UMC”), today reported unaudited net sales for the month of December 2017.

Revenues for December 2017

Period				2017				2016				Y/Y Change				Y/Y (%)
December				10,667,683				12,557,760				-1,890,077				-15.05%
Jan.-Dec.				149,284,706				147,870,124				+1,414,582				+0.96%

(*) 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.

View source version on businesswire.com: http://www.businesswire.com/news/home/20180108006993/en/

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Contact:

Investor Relations
UMC
Michael Lin / David Wong, + 886-2-2658-9168, ext. 16900
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