UMC Reports Sales for May 2018

Taipei, Taiwan, June 8, 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.

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聯華電子股份有限公司本（八）日公佈內部自行結算之2018年度五月份合併營收為新台幣130.75億元，較去年同期增加4.50%。

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