JSC "Khartron" (Hartron) (Ukrainian: Хартрон, formerly NPO "Electropribor", Russian: НПО "Электроприбор", meaning Scientific Production Association "Electrical device"; originally known as NII-692 or OKB-692 design bureau; afterwards known as KB electropriborostroeniya before being named NPO Electropribor) is one of the leading design engineering bureaus in former Soviet states (and the only in Ukraine), which develops and produces spacecraft and missile control systems.

The main trend of its activity was development and implementation of control systems for ballistic missiles, carrier-boosters and space vehicles.

Khartron boasts several joint ventures and projects with companies in the USA, Germany, Italy, Russia, providing successful launches of commercial satellites.

[citation needed] Khartron is one of Ukraine's enterprises for reconstruction of Instrumentation and Control (I&C) systems for Ukrainian nuclear power plants.

Over ten years, Khartron has moved from an exclusively state-owned enterprise, to a joint stock company, whose products among others include commercial industrial control systems for fossil-fuel and nuclear power plants, transport, gas and oil pipelines.