EMS
full spelling ： Electronic Manufacturing Services
Electronic manufacturing services is a term that used for companies based on providing contract design, manufacturing, and related product support services on behalf of electronics OEMs (original equipment manufacturers).
Most of the electronic manufacturing services largely focused on printed circuit board fabrication, leaving system assembly to the OEMs. In recent years apart from information processing (computers) and communications fields, electronic manufacturing services embrace non-traditional industries such as consumer electronics, industrial, medical, and instrumentation.
Electronic manufacturing services (EMS) are located throughout the world. They vary in terms of production capabilities and comply with various quality standards and regulatory requirements.