TSMC CEO C.C. Wei has confirmed that the world's largest chipmaker will invest an additional $100 billion in US semiconductor manufacturing, on top of eight plants already being built or planned across the United States. The announcement, corroborated by US Commerce Secretary Howard Lutnick and independently reported by AP News, adds three new fabrication plants and two advanced packaging facilities to TSMC's American footprint BBC News; AP News.

Wei did not provide a timeline for when the new plants would come online, telling reporters the schedule would depend on "market situation" BBC News. He framed the investment as a move to foster the US semiconductor ecosystem, strengthen supply chain resilience, and support high-tech, high-paying American jobs.

The $100 billion pledge was first announced jointly by President Trump and TSMC at the White House on March 3, 2025 Reuters. The plan's scope — three fabs plus two advanced packaging facilities — was detailed in TSMC's own press release the following day TSMC. TSMC's 2025 capital expenditure budget includes a small allocation tied to this expansion, according to the company's first-quarter investor call transcript TSMC Investor Relations.

Lutnick confirmed the figure and cast the investment in expansive terms, saying it would "create tens of thousands of American jobs and bring advanced semiconductor manufacturing back to America" BBC News. President Trump, who has made domestic chip production a priority since Covid-19 pandemic shortages exposed supply chain vulnerabilities, previously attributed TSMC's 2024 decision to expand US investments to his threats of tariffs on Taiwan and on the global semiconductor business BBC News.

Trump went further in April 2025, saying he had told TSMC it would face a 100% tax if it did not build in the United States Reuters. In January 2025, the US agreed to cut tariffs on Taiwanese goods to 15% in exchange for hundreds of billions of dollars in investment aimed at boosting domestic semiconductor production BBC News.

Taiwan's president and TSMC held a joint news conference in March 2025 to defend the $100 billion decision, an unusual coordinated response from both the company and its home government AP News. The joint appearance signaled the political sensitivity in Taipei of TSMC's deepening US commitments, particularly given the company's designation as the world's largest chipmaker and its central role in Taiwan's economy Reuters.

The broader context here is a deliberate US industrial policy push to reshore leading-edge semiconductor manufacturing, executed through a combination of tariff leverage and investment incentives. The January 2025 tariff reduction to 15% on Taiwanese goods, exchanged for investment commitments, and Trump's explicit threat of a 100% tax on TSMC if it declined to build domestically, together sketch a coercive-incentive structure distinct from the grant-based approach that preceded it. TSMC's willingness to commit an additional $100 billion beyond its existing eight-plant pipeline suggests the approach has been effective in extracting investment, though Wei's refusal to commit to a timeline introduces uncertainty about the pace of actual capacity deployment.

The advanced packaging facilities warrant particular attention. Advanced packaging — the process of integrating multiple chip dies into a single module to improve performance and power efficiency — is an area where TSMC holds a dominant technological position. Adding US-based advanced packaging capacity alongside new fabs would represent a deeper transfer of TSMC's value chain than fab-only investments, though the operational timeline for those facilities remains undefined pending Wei's "market situation" caveat.

Taiwan's joint news conference with TSMC leadership to defend the investment points to the domestic political pressure the deal has generated in Taipei. The concern is straightforward: TSMC's manufacturing base has historically been concentrated in Taiwan, and successive waves of US capacity expansion raise questions about whether the company's most advanced processes will remain anchored on the island or migrate stateside over time. Taiwan's president publicly backing the move suggests an attempt to frame the investment as compatible with Taiwan's interests rather than a concession extracted under tariff pressure.

The absence of a construction timeline is the key unresolved variable. Wei's deferral to "market situation" leaves open the possibility that build-out could be phased over an extended period, with capacity additions calibrated to demand signals rather than political calendars.