Ningbo Tianan Electric Group Co., Ltd. has evolved in 1994 from Xiangshan HV electric apparatus factory, a state-owned and local-run enterprise founded in 1969.  Under the company there are 1 R&D center, 10 specialized subsidiary companies, and more than 70 marketing offices. There are more than 2000 employee working in the headquarter (Technical staff makes up 35%) and the land covers more than 600,000 square meters. Total asset is RMB 2 billion.

Now the products include 220KV GIS, 110KV SF6 Circuit breaker, dry-type &oil-immersed transformers, outdoor HV disconnecting switch below 220kv, pad mounted substation below 35KV, ring main unit switchgear, HV and L.V. switchgear, frequency conversion switchgear, H.V. load switch, H.V. &L.V. circuit breaker, cable (RMU)branch box, fuse, current transformer (CT), intelligent electric equipments,etc.