About
QuantumCTek (SSE STAR: 688027) is China's leading quantum communications company and the only organization delivering both QKD hardware and domestically produced post-quantum cryptography silicon. It is based in Hefei, China and listed on the SSE STAR Market. QuantumCTek built the 2,000km Beijing-Shanghai quantum backbone network and has deployed QKD infrastructure for China's banking, government, and military sectors. In November 2025, QuantumCTek released China's first high-performance post-quantum cryptography chip. In May 2025, QuantumCTek and China Telecom Quantum launched the first commercial QKD+PQC hybrid security system, combining quantum key distribution with PQC algorithms in a single deployed product that delivers quantum-encrypted keys via SIM cards to more than 5 million users, aimed at government and financial sector clients. QuantumCTek also demonstrated a 1,000km quantum-encrypted voice call over China's national quantum backbone network. In 2025 and 2026, QuantumCTek released the ez-Q Engine 2.0, a superconducting quantum measurement and control system supporting more than 1,000 qubits at less than half the cost of comparable foreign technology, with a 10x integration improvement over its predecessor. It was validated on both the 504-qubit Tianyan-504 and the 105-qubit Zuchongzhi 3.0, with plans to scale to more than 5,000 qubits and a next-generation system capable of 10,000 qubits with error correction. The company also commercialized its domestically developed EZ-Q Fridge dilution refrigerator for mass production, reducing reliance on imported cryogenic equipment. In H1 2025, QuantumCTek reported revenue of CNY 121M, up 75% year over year, with quantum computing revenue of CNY 56M, up 284%. In January 2025, the China Telecom Quantum Group assumed a controlling stake in QuantumCTek, consolidating Chinese quantum communications and computing into a single state-owned enterprise.
Quantum Specifications
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