UMC posts record first-half revenue and plans selective price hikes in second half

UMC’s full utilization in Taiwan, China reflects a structural shortage in mature nodes that has shifted from cyclical to secular. Technically, sustained tightness in 8-inch and >28nm lines forces MCU, PMIC, and automotive IC designers to either migrate platforms or absorb higher costs—elevating BOMs across end markets. On compliance, tightening U.S. export controls on semiconductor equipment constrain UMC’s expansion to second-hand tool integration, weakening supply chain resilience. Competitively, SMIC and GlobalFoundries may seize non-U.S.-aligned customers, especially in industrial and automotive segments, opening a substitution window. Over the next 12–24 months, mature-node pricing will structurally reset higher, cementing a ‘high-utilization plus selective hikes’ norm—marginalizing second-tier foundries lacking proprietary IP or sticky client relationships.