Chinese SiC substrate maker SICC hits record Q2; 8-inch wafers top 50% of core revenue

SICC’s strong Q2 performance, with 8-inch SiC substrates contributing over half of core revenue, signals a clear shift toward larger wafers in the industry. This trend is driving upstream advancements in silicon feedstock and epitaxial equipment, while boosting demand for high-efficiency power devices and AI chips downstream. From a compliance standpoint, tightening U.S. export controls may force SICC to accelerate localization of its supply chain, enhancing self-reliance. Competitors like Siltronic and Wacker may ramp up capacity to counter Chinese cost and scale advantages. Over the next 12–24 months, SiC substrates are expected to penetrate more EV and data center applications, creating new technical moats. If SICC sustains its lead in both technology and cost, it could solidify its position in global competition.