TSMC adds $100 billion to Arizona investment as chip pressure mounts

Taiwan Semiconductor Manufacturing Company (TSMC) announced an additional $100 billion investment in Arizona, bringing its total committed spending in the US state to $265 billion, according to reporting from the G20 Innovation Ministerial in early September 2026. The move follows US pressure - including warnings of semiconductor tariffs for companies that do not manufacture chips domestically - and an agreement with Taiwan to expand investment in exchange for tariff relief. Taiwan is positioning its semiconductor capacity as both an industrial advantage and a diplomatic asset.