Some HF-2 batteries are located on Taiwan's outlying islands, with others fitted on naval vessels. These missiles have had their radars and IR seekers replaced with GPS guidance units and TV/IR seekers for terminal guidance. This is designed to serve as a deterrent to mainland China and will continue to do so until CSIST completed development of the HF-2E. As with the above, however, the existence of a land-attack version of the HF-2 anti-ship missile is unconfirmed, and the Ministry of National Defense has dismissed media reports claiming the new weapons have a range of between 1000 and 2000 miles as "sheer fabrication.”