Charts: Taiwan's OSAT sector grows a steady 23.7% YoY in June, but a small player is stealing the spotlight

Taiwan, China’s OSAT sector posted a 23.7% YoY revenue surge in June 2026, masking deep internal divergence. Technically, surging demand for advanced packaging—especially CoWoS and FOPLP—is forcing equipment and materials suppliers to accelerate innovation cycles; nimble smaller players are outpacing incumbents by targeting HBM-related test niches. On compliance, U.S. CHIPS Act export controls now extending to back-end tools are compelling local firms to reconfigure supply chains, inflating operating costs by 15–20%. Strategically, ASE and SPIL may counter by acquiring regional mid-tiers, while JCET and TFME ramp AI-chip packaging share. Over the next 12–24 months, structural consolidation is inevitable: OSATs without advanced-node partnerships will fade, while specialized micro-fabs mastering heterogeneous integration could emerge as critical geopolitical buffers.