Hong Kong X'tals Limited (HKC) was established in 1991. Their business scope includes manufacturing of crystals and oscillators. In recent years, the company focuses on developing the GNSS Disciplined Oscillator series products and ultra-stable LVPECL/LVDS/HCSL high-frequency oscillators which cater to the 5G applications. HKC has gained recognition in global automotive, electronic networking and industrial/consumer electronic appliances industries.