68/100BUnited Microelectronic company profile
- CEO
- Jason S. Wang
- Employees
- 20,000
- Headquarters
- Hsinchu Science Park, Hsinchu City, TP 30078, TW
- Sector
- Technology
- Industry
- Semiconductors
- IPO date
- 19 Sept 2000
- Stock exchange
- NYSE
- ISIN
- US9108734057
Website:umc.com
About the company
United Microelectronics Corporation (UMC) operates as a specialized semiconductor wafer foundry, extending its services globally with operations across Taiwan, Singapore, China, Hong Kong, Japan, the United States, and Europe. The company offers a comprehensive range of solutions, from initial circuit blueprinting and mask generation to wafer manufacturing, final assembly, and rigorous testing. UMC's customer base consists of both integrated device manufacturers and companies focused solely on chip design. This corporation, founded in 1980, has its primary headquarters situated in Hsinchu City, Taiwan.
Employees
United Microelectronic had about 19,097 employees at the end of fiscal year 2025 (31 December 2025), by its annual report. That is 0.4% more than a year before.
Employees at each fiscal year end, as the company reports them in its annual report (10-K); revenue and net income per employee are the fiscal year's over that count.
Who owns United Microelectronic
Institutions such as funds, banks and insurers held 7.2% of United Microelectronic's shares on 30 June 2026, 392 of them reporting holdings to the SEC; the rest is held by individual investors and other shareholders.
Shares free to trade
Closely held shares belong to insiders, founders and owners of more than 5%, and seldom change hands. The free float is the rest: the shares anyone can buy and sell.
Common questions about United Microelectronic
Source: Financial Modeling Prep