TAIPEI, Taiwan — (BUSINESS WIRE) — January 8, 2019 — United Microelectronics Corporation (NYSE: UMC; TWSE: 2303) (“UMC”), today reported unaudited net sales for the month of December 2018.

Revenues for December 2018

Period			2018			2017			Y/Y Change			Y/Y (%)
December			11,385,275			10,667,683			+717,592			+6.73%
Jan.-Dec.			151,252,571			149,284,706			+1,967,865			+1.32 %

(*) 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/20190108006194/en/

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Contact:

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