Хронология: Синхын

Approximately 5-6 years after the old Sinhungho trolleybuses were withdrawn and service suspended, the Sinhung commuting trolleybus line resumes service with a new Chollima-321 or Sinhungho (2019) type trolleybus.

Система, вероятнее всего, законсервирована с 2017 г.