TAIPEI, Taiwan — (BUSINESS WIRE) — June 7, 2018 — United Microelectronics Corporation (NYSE:UMC; TWSE:2303) (“UMC”), today reported unaudited net sales for the month of May 2018.

Revenues for May 2018

Period			2018			2017			Y/Y Change			Y/Y (%)
May			13,075,480			12,512,276			+563,204			+4.50%
Jan.-May			62,984,613			61,856,496			+1,128,117			+1.82%

(*) 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: https://www.businesswire.com/news/home/20180607006379/en/

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Contact:

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