Jointly designed and developed by Eurocopter, China National Aero-Technology Import & Export Corporation (CATIC), Harbin Aviation Industries (Group) Ltd (HAIG) and Singapore Technologies Aerospace Ltd (STAero) at Eurocopter France's Marignane facility, the EC120B was assembled by Eurocopter in France and Australia.
Bersama-sama dirancang dan dikembangkan oleh Eurocopter, China National Aero-Technology Import & Export Corporation (CATIC), Harbin Aviation Industries (Group) Ltd (HAI) dan Singapore Technologies Aerospace Ltd (STAero) di fasilitas Eurocopter France's Marignane, B EC120 dirakit oleh Eurocopter di Prancis dan Australia.