TSMC, or Taiwan Semiconductor Manufacturing Company, makes chips designed by other companies. Taiwan matters because it is home to much of TSMC’s manufacturing and a concentrated share of advanced chipmaking capacity—so disruption there could ripple through technology supply chains worldwide. TSMC is adding production abroad, but its overseas expansion does not erase that concentration overnight.
What is TSMC?
TSMC is a semiconductor foundry: it manufactures chips to customers’ designs. This makes it different from a company that sells its own branded processors or other consumer chips. TSMC describes its model as “pure-play”: it says it does not design, manufacture, or market semiconductor products under its own name. Customers can concentrate on chip design while TSMC provides manufacturing capacity.
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Those customers serve markets including high-performance computing, smartphones, the Internet of Things (IoT), automotive, and digital consumer electronics. TSMC’s 2024 Annual Report describes foundries as upstream suppliers whose business is closely tied to demand across those platforms. That is the company’s description of its role, not an independent forecast of future demand.
Why does Taiwan matter to the global chip supply?
Much of TSMC’s manufacturing footprint is there
TSMC’s manufacturing remains strongly rooted in Taiwan, where it operates several large fabrication facilities. Its footprint also includes facilities or subsidiaries in Arizona, Nanjing, and Japan, according to the company’s 2025 report. Across facilities managed by TSMC and its subsidiaries, the company reported more than 17 million 12-inch-equivalent wafers of annual capacity in 2025. That is company-reported capacity, not a count of chips shipped or a measure of TSMC’s share of worldwide production.
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Taiwan has a particularly large role in advanced fabrication
Different statistics describe different parts of Taiwan’s position, and they should not be treated as interchangeable. The U.S.-China Economic and Security Review Commission’s 2025 report says that, in 2022, Taiwan held 69% of global fabrication capacity capable of producing chips below 10 nanometers, while South Korea held 31%. This is a dated measure of capacity for a specific advanced-chip category—not Taiwan’s share of all chips, output, or sales, and not a TSMC-only figure.
A separate estimate in the International Trade Administration’s 2025 Taiwan country guide puts Taiwan at over 60% of global foundry revenue and more than 90% of leading-edge chip manufacturing. These guide-level estimates use different measures and definitions from the Commission’s sub-10nm capacity figures. Neither should be read as TSMC’s individual market share.
The ecosystem extends beyond wafer fabrication
Taiwan’s semiconductor role is not limited to TSMC or to making silicon wafers. The Congressional Research Service describes Taiwan’s participation across chip design, fabrication, materials, and assembly, packaging, and testing. A disruption to the broader ecosystem could therefore affect more than a single company or factory.
How could Taiwan-related disruption affect businesses and consumers?
Companies that rely on chips made in or supplied through Taiwan could face delays or difficulty securing components if the manufacturing ecosystem were disrupted. Because chips are used in computing, phones, vehicles, and other electronics, supply constraints could reach businesses and customers in many sectors. The extent of any effects would depend on the disruption, the chips involved, and the alternatives available; the cited sources do not establish a specific price rise or consumer outcome.
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The Congressional Research Service discusses possible supply interruptions associated with trade, geopolitical, and other risks. That is a vulnerability assessment, not a prediction that a conflict, blockade, shutdown, or particular interruption will occur. For personal-finance readers, the practical point is that concentrated production can expose companies—and, indirectly, their customers—to supply risk. It does not by itself tell an individual how to invest or forecast the price of a particular device or stock.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Is TSMC moving production outside Taiwan?
Yes. The company reports that production has begun at facilities in Arizona and Japan, while its footprint also includes Nanjing. The reported milestones show diversification is underway, but facilities that are planned or under construction should not be counted as current production.
| Location | Reported status | What the milestone establishes |
|---|---|---|
| Arizona, United States | TSMC says its first Arizona facility began 4nm volume production in the fourth quarter of 2024. | Volume production has begun at that facility; it does not mean all announced Arizona capacity is operating. |
| Kumamoto, Japan | TSMC says its first Kumamoto fab began volume production at the end of 2024. | The first fab has reached volume production; this is distinct from later projects or planned capacity. |
| Nanjing, China | Listed among facilities or subsidiaries in TSMC’s 2025 report. | The report’s listing establishes a presence, but the cited material does not specify a production milestone here. |
TSMC also describes additional projects in Taiwan and abroad. Announcements, construction, installed capacity, and volume production are different stages; only facilities reported as producing chips should be described as current output.
Quick Recap
What to keep in mind when comparing chip-supply claims
- Check the segment: advanced logic, mature-node chips, and all semiconductors are not the same market.
- Check the measure: foundry revenue, fabrication capacity, and actual output answer different questions.
- Check the geography: a fab’s location is not necessarily the same as the nationality of its operator.
- Check the date and status: dated estimates and announced projects should not be presented as current operating capacity.
- Check the scope: TSMC’s footprint, Taiwan’s broader ecosystem, and global supply are related but distinct.
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