TSMC Wins Approval for $20 Billion US Expansion in Arizona

Taiwan's government has approved a $20 billion capital injection by Taiwan Semiconductor Manufacturing Company into its wholly owned US subsidiary, clearing the way for a major expansion of the chipmaker's manufacturing footprint in Arizona.

Terms of the approval

Taiwan's Ministry of Economic Affairs granted the approval through its Department of Investment Review, earmarking the funds for building 12-inch wafer fabrication plants and advanced packaging facilities in Arizona. It marked the sixth time the ministry has approved TSMC investments in the United States, bringing the total cleared for the company's US operations to roughly $44 billion.

The TSMC injection was the largest of nine domestic and overseas investment projects approved at the same review meeting. In total, the department cleared seven outbound projects worth about $23 billion, with the Arizona expansion accounting for the bulk of that figure.

Building out Arizona

TSMC has steadily enlarged its Arizona presence, moving from an initial single-fab commitment to a multi-fab campus that now includes advanced logic and packaging capacity. Adding advanced packaging in the United States is significant because that back-end step, which stitches chips and memory together, has long been concentrated in Asia. Bringing it onshore addresses a persistent gap in efforts to build a more complete domestic chip supply chain.

Balancing home and abroad

For Taiwan, approving large outbound investments involves a delicate balance. The island's dominance in advanced chipmaking is a strategic asset, and officials weigh the benefits of overseas expansion against concerns about hollowing out capacity at home. TSMC has repeatedly said its most advanced production and research will remain anchored in Taiwan.

The expansion aligns with US efforts to reshore semiconductor manufacturing and reduce reliance on a geographically concentrated supply chain. For TSMC, deeper US investment helps serve American customers closer to home and hedges against geopolitical risk, even as the company continues to expand its leading-edge production on the island.