Kingboard Laminates raises thin-cloth laminates, prepreg prices 15% in eighth hike of 2026

Kingboard's eighth 2026 price action—targeting 2116 and thinner cloth systems at 15% per round—signals a structural bottleneck migration, not routine cost pass-through. The binding constraint has shifted decisively up the value chain: AI server architectures demanding low-Dk/Df substrates, combined with 5G-A and automotive mmWave radar volume, have made thin glass-fiber cloth a globally scarce input. Kingboard, holding the largest qualified capacity in this niche, is exercising oligopolistic pricing power. The upstream yarn-spinning yield ceiling versus downstream PCB makers' limited absorption capacity creates a widening profit pool toward the materials tier. Competitively, Shengyi and Panasonic will likely follow in Q1, but the 15% jump will push mid-tier customers toward 7628 standard-cloth alternatives, accelerating product stratification. Over the next 12–24 months, sustained AI capex keeps thin-cloth laminates in a volume-and-price expansion cycle; however, new spinning capacity coming online in 2027 poses a mean-reversion risk. PCB OEMs that have not secured multi-year offtake agreements with qualified laminate suppliers are now structurally exposed on cost.