UMC Reports Sales for October 2021

Taipei, Taiwan, November 4, 2021 -- United Microelectronics Corporation (NYSE: UMC; TWSE: 2303) (“UMC”) today reported unaudited net sales for the month of October 2021.

Revenues for October 2021

Period	2021	2020	Y/Y Change	Y/Y (%)
October	19,158,585	15,282,825	+3,875,760	+25.36%
Jan.-Oct.	173,070,015	146,807,386	+26,262,629	+17.89%

(*) 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 https://www.umc.com.