UMC Reports Sales for February 2017

Taipei, Taiwan, March 9, 2017--United Microelectronics Corporation (NYSE: UMC; TWSE: 2303) (“UMC”), today reported unaudited net sales for the month of February 2017.

Revenues for February 2017

Period	2017	2016	Y/Y Change	Y/Y (%)
February	12,014,861	9,478,048	+2,536,813	+26.77%
Jan.-Feb.	24,666,761	21,484,905	+3,181,856	+14.81%

(*) 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.