UMC Reports Sales for April 2018

Taipei, Taiwan, May 9, 2018--United Microelectronics Corporation (NYSE: UMC; TWSE: 2303) (“UMC”), today reported unaudited net sales for the month of April 2018.

Revenues for April 2018

Period	2018	2017	Y/Y Change	Y/Y (%)
April	12,411,996	11,926,270	+485,726	+4.07%
Jan.-Apr.	49,909,133	49,344,220	+564,913	+1.14%

(*) 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.