United Microelectronics Corporation (NYSE:UMC, TWSE: 2303)) ("UMC"), today reported unaudited net sales for the month of July 2026.

Revenues for July 2026

Period

2026

2025

Y/Y Change

Y/Y (%)

July

23,844,045

20,040,049

3,803,996

18.98%

Jan.-July

153,614,609

136,656,663

16,957,946

12.41%

(*) 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.

Michael Lin / David Wong

UMC, Investor Relations

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

Email:

david_wong@umc.com

jinhong_lin@umc.com