China Achieves Dual Tech Breakthroughs in Quantum Chips, 6G

Chinese research teams have announced two major technological breakthroughs on the same day, successfully developing key materials for silicon-based quantum chips and solving core challenges in high-end communication equipment manufacturing. The twin announcements, made on June 15-16, 2026, mark significant strides in China’s drive for technological self-sufficiency in critical frontier areas.

Quantum Chip Material Breakthrough

The China National Nuclear Corporation (CNNC) announced that it has achieved independent mass production of silicon-28 isotope with abundance exceeding 99.99%, up from its natural abundance of approximately 92%. According to Xinhua News, the product’s key indicators have reached internationally advanced levels, providing solid support for China’s independent development of core materials for silicon-based quantum computing.

Silicon-28 is a stable isotope of silicon with zero nuclear spin, which dramatically reduces environmental noise interference in quantum computing. This property has earned it the description of “the purest silicon in the world” and makes it an indispensable core material for silicon-based quantum chips, widely considered one of the most promising paths to scalable quantum computing. For a long time, the global technology barrier for stable isotope preparation has been extremely high, with only a very few countries capable of large-scale production of high-abundance silicon-28.

Academician Lei Zengguang of the Chinese Academy of Engineering stated that the achievement “not only represents a breakthrough in separation technology, filling a domestic gap, but also effectively completes a key link in the industrial chain,” emphasizing its significance for China’s quantum technology and high-end chip industry development.

The breakthrough was accomplished by the CNNC’s Institute of Physical and Chemical Engineering, a team that has previously produced 26 stable isotopes of 12 elements including molybdenum, tellurium, and nickel. As CCTV News reported, Cai Wei, Deputy General Manager of the Stable Isotope Technology R&D Center, explained that without domestic silicon-28 production, “building an autonomous and complete quantum computing industry would be almost impossible.” He noted that importing from overseas would mean “severe dependence on foreign control.”

Beyond quantum computing, ultra-high abundance silicon-28 has important application prospects in advanced semiconductor manufacturing at sub-3nm nodes, high-end navigation systems, and metrological benchmarks. Cai Wei highlighted that for AI large models requiring massive parallel computing, the integration of quantum computing could reach “an even higher level.”

Communication Equipment Breakthrough

Simultaneously, the China Aerospace Science and Technology Corporation (CASC) First Academy, in collaboration with Shanghai Aerospace Electronics Co., Ltd., announced a phased key breakthrough in metasurface electromagnetic regulation core technology. As reported by Sina News, the team successfully completed functional sample development, achieving full technological self-control and engineering implementation.

Metasurface electromagnetic regulation technology is recognized as a core frontier technology for future 6G communications and low-orbit satellite interconnection. Its applications span commercial satellite communications, 5G/6G millimeter-wave base stations, communication relays, and intelligent detection. The industry considers it an incremental “blue ocean” track with strong adaptability across diverse scenarios.

The new technology delivers substantial performance and cost improvements. Under the same communication coverage effect, it can reduce front-end communication equipment deployments while improving communication area coverage performance by more than 40%. Single-scenario equipment investment costs are reduced by 500,000 RMB (approximately $69,000), and terminal costs for high-end satellite and millimeter-wave communications have been reduced from tens of thousands of RMB to the thousand-yuan level, solving what had long been the core problem restricting large-scale popularization of high-end communication equipment.

Strategic Context and Implications

Both breakthroughs occur against the backdrop of ongoing US-China technology tensions, particularly semiconductor export controls. The silicon-28 breakthrough reduces China’s dependence on foreign suppliers for critical quantum computing materials, while the communication equipment breakthrough demonstrates indigenous innovation in next-generation infrastructure.

China’s 2026 Government Work Report, as covered by CCTV, explicitly identified quantum technology and 6G as priority future industries to cultivate. The silicon-28 achievement aligns with the “Nuclear Technology Application Industry High-Quality Development Three-Year Action Plan (2024-2026),” while the metasurface technology breakthrough supports China’s aggressive pursuit of 6G leadership. In May 2026, China became the first country globally to issue 6G test frequency licenses in the 6GHz band.

What’s Next

The CNNC’s Institute of Physical and Chemical Engineering plans to continue developing a series of stable isotope products for applications in nuclear energy, nuclear medicine, aerospace, quantum information, particle physics, and deep space exploration. The CASC communication team has established a complete chain from technical principle verification to engineering sample implementation, building a mature, efficient, and low-cost technology model for subsequent batch production and market promotion.

These dual breakthroughs position China to compete more effectively in the global race for quantum computing and 6G leadership, while reducing strategic dependencies on foreign technology suppliers in two of the most critical frontier technology domains.