UMC Business Summary

United Microelectronics Corporation (UMC) operates as a leading global pure-play semiconductor foundry, generating revenue through contract wafer fabrication services for fabless chip designers and integrated device manufacturers (IDMs). The company specializes in mature and specialty process technologies, with its 22/28nm segment serving as a primary growth engine, accounting for approximately 36% of total revenue as of late 2025. UMC’s diversified portfolio includes high-margin specialty solutions such as Radio Frequency Silicon-on-Insulator (RFSOI), Bipolar-CMOS-DMOS (BCD), and embedded Non-Volatile Memory (eNVM), targeting high-growth sectors in automotive, 5G, and edge AI. Positioned as the world’s third-largest dedicated foundry by market share, UMC competes directly with industry leader TSMC, as well as GlobalFoundries and SMIC, distinguishing itself by prioritizing capital-efficient mature-node expansion and geographic diversification across its 12 global manufacturing facilities. Leadership is currently spearheaded by Chairman Stan Hung, who oversees the company’s strategic direction and sustainability initiatives. In a significant organizational restructuring effective February 25, 2026, UMC transitioned from its long-standing co-president model to a centralized executive structure, appointing Jason Wang as Chief Executive Officer. Wang, who previously served as Co-President since 2017, brings extensive experience in corporate strategy and market development. Concurrently, Ming Hsu, a 20-year veteran of the company with a background in global operations and customer engineering, was promoted to President and Chief Operating Officer and joined the Board of Directors. This leadership team is supported by a board that emphasizes ESG excellence, recently securing a top 1% ranking in the S&P Global Sustainability Yearbook, and maintains a disciplined capital expenditure strategy focused on high-demand specialty capacity in Singapore and Taiwan.