UMC Reports Sales for December 2025

TAIPEI, Taiwan--(BUSINESS WIRE)-- United Microelectronics Corporation (NYSE: UMC; TWSE: 2303) (“UMC”), today reported unaudited net sales for the month of December 2025.

Revenues for December 2025
Period	2025	2024	Y/Y Change	Y/Y (%)
December	19,280,724	18,965,818	314,906	1.66%
Jan.-Dec.	237,553,199	232,302,584	5,250,615	2.26%
(*) 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.

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Michael Lin / David Wong

UMC, Investor Relations

Tel: + 886-2-2658-9168, ext. 16900

Email:

david_wong@umc.com

jinhong_lin@umc.com

Source: United Microelectronics Corporation