Taiwan Semiconductor Manufacturing Co (TSMC) has committed an additional US$100 billion to expand its manufacturing operations in Arizona, bringing its total US investment pledge to US$265 billion.

The move underscores the foundry’s aggressive push to scale capacity in the United States, driven by sustained demand for advanced chips powering artificial intelligence applications.

The announcement coincides with TSMC’s second-quarter results, which showed net income surging 77% year-on-year to NT$706.

The announcement coincides with TSMC’s second-quarter results, which showed net income surging 77% year-on-year to NT$706.6 billion (US$22 billion).

The financial performance highlights the profitability of the company’s advanced-node portfolio, reinforcing the economic rationale for massive capital expenditures in new geographic hubs.

This expansion deepens TSMC’s strategic footprint in the US, aligning with broader industry trends of supply-chain diversification and onshoring.

The Arizona facilities are critical to meeting the growing appetite for high-performance computing and AI accelerators from major technology clients.