Taiwan's semiconductor dominance deepens: TSMC controls 72% of foundry market amid AI spending surge

Taiwan now controls 72% of global pure-foundry market share (TSMC) and accounts for 60% of all global semiconductor production and 90% of advanced chips. In Q1 2026, TSMC reported $35.9 billion revenue, up 40.6% year-over-year, with net profit margin of 50.5%—extraordinary for capital-intensive manufacturing. Q2 targets $39–40.2 billion revenue (implying 30% full-year growth).

TSMC's dominance stems from Morris Chang's foundry-first model (never compete with customers like Nvidia, Broadcom, Apple) and a vertically integrated ecosystem spanning design, packaging (CoWoS), materials, and tooling suppliers. Over three decades, southern Taiwan's output surged from NT$800 billion (2020) to NT$3 trillion (2025), surpassing historic Hsinchu. TSMC's 2nm process began mass production Q4 2025; 2nm nanosheet transistors deliver 10–15% performance gain or 30% power cut versus FinFET.

For architects sourcing AI silicon: TSMC's capex ($52–56 billion in 2026) targets AI chip manufacturing across Taiwan, Japan, and US. Tight 3nm/5nm capacity persists through 2027. Geopolitical risk is real—Taiwan produces 90% of the world's advanced chips from one island—but co-location investments (Arizona, Japan) and tariff agreements signal intent to stabilize supply chains for the decade. Watch TSMC margins and 2nm yield as signals of AI demand elasticity.