Anonymous sources told Taipei Times that the military had to deploy a battery of PAC-3 air defense missile system to Taitung on the east coast of the island as the preferred Tien Kung III was not available for relocation.
By 玄史生 (Own work) [CC BY-SA 3.0], via Wikimedia Commons
The Ministry of National Defense (MND) had wanted to replace the HAWK missiles there with the Tien Kung but the production line of the indigenous air defense missile is facing a backlog.