United Microelectronics Corporation (UMC)
2303 · TWSE · Semiconductors · US listing: UMC
About the company
United Microelectronics Corporation is one of the world's largest semiconductor foundries, providing wafer fabrication services for logic and specialty ICs across nodes ranging from mature to advanced. UMC serves customers in the communications, consumer electronics, and computing sectors and operates fabs in Taiwan, Singapore, and Japan. It was formerly integrated with TSMC and became an independent foundry in 1980.
| Exchange | TWSE |
| Ticker | 2303 |
| Sector | Semiconductors |
| US listing | UMC |
| Indicative market cap USD | $19.00B |
| Website | Visit website |
Live quote
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Where to buy
Trades in the US as UMC — available through most US brokerage accounts.
On its home market (TWSE), it is accessible through global brokers that offer that exchange:
- Interactive Brokers — Direct access to 90+ markets worldwide, including many emerging exchanges.
- Saxo Bank — Multi-market access across Asia, Europe and the Middle East.
- Charles Schwab (Global) — Foreign ordinary shares on select markets; US-listed ADRs and ETFs.
- Fidelity International Trading — International stock trading on a number of developed and emerging markets.
- Taiwan Stock Exchange — official exchange listing
Availability information only — not a recommendation or an offer to buy. Confirm eligibility, fees and current availability with your broker.
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Company data and any live price are indicative, may be delayed or inaccurate, and are for research only — not investment advice. Verify with the exchange, the company's filings and your broker.