UMC Reports Sales for September 2026

For best results when printing this announcement, please click on link below: UMC Reports Sales for September 2026 United Microelectronics Corporation (NYSE: UMC; TWSE: 2303) (“UMC”), today reported unaudited net sales for the month of September 2026. Revenues for September 2026 Period 2026 2025 Y/Y Change Y/Y (%) September 25,350,431 19,927,175 5,423,256 27.22% Jan.-Sep. 204,009,681 175,743,654 28,266,027 16.08% (*) 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 View source version on.com: Michael Lin / David Wong UMC, Investor Relations Tel: + 886-2-2658-9168, ext. 16900 Email: david_wong@umc.com (mailto:david_wong@umc.com).