United Microelectronics Corporation (UMC)
2303 · TWSE · Semiconductors (Foundry) · US listing: UMC
About the company
UMC is Taiwan's second-largest semiconductor foundry, providing wafer fabrication services for logic, mixed-signal, and embedded memory chips used in consumer electronics, communications, and automotive sectors. The company operates fabs in Taiwan, Singapore, and Japan. UMC focuses primarily on mature and specialty nodes from 14nm and above.
| Exchange | TWSE |
| Ticker | 2303 |
| Sector | Semiconductors (Foundry) |
| US listing | UMC |
| Indicative market cap USD | $21.00B |
| Website | Visit website |
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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 Corporation — official exchange listing
Availability information only — not a recommendation or an offer to buy. Confirm eligibility, fees and current availability with your broker.
Other companies in Taiwan
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.