Quantum computing stands as the linchpin of the forthcoming technological revolution, with silicon-based quantum chips emerging as the pivotal technology propelling its widespread adoption. Silicon-28, a stable isotope of silicon boasting a zero nuclear spin, plays a crucial role in substantially mitigating environmental noise interference in quantum computing. Revered as the "purest silicon on Earth," it constitutes an indispensable core material for the development of silicon-based quantum chips. On June 15, 2026, the China National Nuclear Corporation (CNNC) proclaimed that Chinese scientists had, for the first time, achieved independent mass production of silicon-28 isotopes with an abundance surpassing 99.99%. Moreover, key indicators of this achievement have reached internationally advanced standards. This breakthrough tackles the long-standing challenge of a "dearth of essential materials" for silicon-based quantum computing, clearing the path for large-scale qubit manipulation in this domain. Furthermore, it provides steadfast support for cutting-edge technological fields such as advanced semiconductor manufacturing processes, high-end navigation systems, and metrological standards.