United Microelectronics Corporation $(UMC)$ reported its unaudited net sales for December 2025. The company recorded revenues of NT$19,280,724 thousand for December 2025, representing a 1.66% year-over-year increase compared to NT$18,965,818 thousand in December 2024. Shares of UMC jumped 9% in premarket trading.
For the full year from January to December 2025, UMC's consolidated revenues reached NT$237,553,199 thousand, up 2.26% from NT$232,302,584 thousand in the same period in 2024. All figures are presented in thousands of New Taiwan Dollars.