China mass produces silicon-28 amid quantum computing race with US

China’s mass production of silicon-28 represents a strategic leap in quantum hardware sovereignty. This breakthrough slashes feedstock costs for domestic spin-qubit R&D and accelerates localization of upstream cryo-CMOS and dilution refrigeration technologies. Global equipment vendors face eroding relevance in China’s quantum ecosystem under U.S. export controls, likely forcing costly supply chain diversions to Southeast Asia or India. Washington is expected to tighten licensing on isotope-enrichment tools within 12 months and rally allies into a ‘quantum materials bloc.’ Over the next 24 months, China may leverage material-scale advantages to shape niche standards in silicon-based quantum computing—but without parallel advances in error correction and interconnect architecture, it won’t displace superconducting qubits’ lead.