United Microelectronics Corp
Tainan Fab 12A P6 Expansion
Tainan, Taiwan
Investment
$3.6B
CHIPS Act Funding
None disclosed
Technology Node
22nm/28nm
Jobs Created
1,000
Project Type
Foundry
Planned HVM Start
Jan 1, 2023
Actual HVM Start
Jan 1, 2023
Last Updated
Sep 28, 2026
Schedule slippage
No verified schedule baseline yet for this project. We add baselines only once we can cite an official earlier target — nothing is estimated.
Timeline
No milestones recorded for this project yet.
History of Changes
Data correction: The record's investment (NT$100B) and 2023 production date match UMC's Fab 12A Phase 6 (P6) expansion, announced Apr 28, 2021. A separate, still-unbuilt Phase 7 (P7) only had its fab shell announced in Jul 2026 with no production date, and does not match this record. Renamed from P7 to P6 to reflect the sourced facts; the two phases were likely confused when the record was created.
Sep 28, 2026 · project_name changed from "Tainan Fab 12A P7 Expansion" to "Tainan Fab 12A P6 Expansion"
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View PricingEvidence
- InvestmentReported
- StatusReported
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General references
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