UMC Reports Sales for March 2019

Taipei, Taiwan, April 9, 2019--United Microelectronics Corporation (NYSE: UMC; TWSE: 2303) (“UMC”), today reported unaudited net sales for the month of March 2019.

Revenues for March 2019

Period	2019	2018	Y/Y Change	Y/Y (%)
March	10,325,739	12,412,192	-2,086,453	-16.81%
Jan.-Mar.	32,582,959	37,497,137	-4,914,178	-13.11%

(*) 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.