UMC Reports Sales for September 2015

Taipei, Taiwan --October 8, 2015--United Microelectronics Corporation (NYSE: UMC; TWSE: 2303) (“UMC”), today reported unaudited net sales for the month of September 2015.

Revenues for September 2015

Period	2015	2014	Y/Y Change	Y/Y (%)
September	10,425,056	12,256,438	-1,831,382	-14.94%
Jan.-Sep.	110,981,039	102,776,786	+8,204,253	+7.98%

(*) 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.