UMC Reports Sales for October 2023

Taipei, Taiwan, November 6, 2023 -- United Microelectronics Corporation (NYSE: UMC; TWSE: 2303) (“UMC”) today reported unaudited net sales for the month of October 2023.

Revenues for October 2023

Period	2023	2022	Y/Y Change	Y/Y (%)
October	19,191,382	24,344,264	-5,152,882	-21.17%
Jan.-Oct.	186,766,104	235,213,813	-48,447,709	-20.60%

(*) 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.