TSMC's Texas plan looks like tariff insurance with fabs attached
With three-quarters of sales in America and broader chip tariffs looming, a Dallas pledge may matter more than the plant
TSMC's reported plan for a second US manufacturing hub may be less about building chips in Texas than about keeping them out of Washington's tariff net.
The Taiwanese chipmaker is weighing a campus in Dallas that could hold up to six advanced fabs, the Economic Daily News reported.
Total investment could exceed the $265 billion reportedly earmarked for its Arizona complex, according to MacTech.
Yet suppliers have not been told to prepare, and the board has not made a decision, ChainCatcher reported, citing the Taiwanese paper.
The tariff arithmetic
The timing makes more sense when set against US trade policy.
In January, President Trump imposed a 25% tariff on a narrow group of advanced AI chips, including Nvidia's H200 and AMD's MI325X, GHY International noted.
That was only phase one.
Commerce officials recommended a broader, significant chip tariff once trade talks conclude, according to ASR.
Crucially, it is expected to come with a tariff offset programme giving preferential treatment to companies investing in US chip production.
A credible Texas pledge would put TSMC firmly on the right side of that line.
Why TSMC cannot ignore Washington
TSMC's exposure is stark.
US customers accounted for 75.64% of its revenue in the first half of the year, SBS News reported, citing Taiwanese media.
Nvidia, AMD, Apple and Intel have all pushed for more US-made chips, according to MacTech.
When most of your buyers are American, a tariff on imported chips is effectively a tariff on your own business.
The politics of the calendar
The US midterm elections are five weeks away.
One source told TechSoda it was hard to say where things stood before the vote, and noted Austin and Houston had also been floated.
A leaked shortlist lets TSMC signal intent without committing capital.
Investors may get more clarity at TSMC's investor conference on 15 October, where it is expected to set out spending plans, ad-hoc-news reported.
Why Dallas
North Texas, dubbed the "Silicon Prairie", already hosts Texas Instruments, Samsung and Tesla, according to SBS.
A cluster there would link to Arizona in what local media called a southern semiconductor corridor.
A Texas hub would also bring higher construction costs and labour shortages, TechSoda warned.
A long road
Analysts expect any new site to take years to develop, since Arizona is still mid-expansion.
They see an announcement as positive for TSMC and the wider chip sector because more US capacity could reduce the risk of future tariffs.
Those tariffs, they argued, could threaten AI development in the US by raising the cost of building data centres.
