UMC Reports Sales for February 2018

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

Revenues for February 2018

Period	2018	2017	Y/Y Change	Y/Y (%)
February	11,909,283	12,014,861	-105,578	-0.88%
Jan.-Feb.	25,084,945	24,666,761	+418,184	+1.70%

(*) 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.