QuantumCTek Co., Ltd. manufactures quantum information technology enabled ICT technology security products and services in China. The company offers quantum key distribution terminals; channels and key network switching products; landline and mobile encryption application products; and teaching systems and scientific instruments. It also provides components, such as single-photon detectors; Quantum random number generators; and devices, including QCL-100 high-speed picosecond pulsed laser devices, periodically poled lithium niobate waveguides, geiger-mode InGaAs avalanche photodiodes, micro-processor compensated variable optical attenuators, QFPS fiber phase shifters, QMPC-100 manual polarization controllers, and QEPC-100 dynamic polarization controllers. In addition, the company offers network and element management and control software. It serves government, financial, and energy industries. The company was founded in 2009 and is based in Hefei, China.