The federal government has signed a $1.2 billion contract extension with a group of defence contractors for maintenance work on eight Anzac-class frigates for the next five years, with BAE Systems and CIMIC's UGL among the major beneficiaries.

The federal government has signed a $1.2 billion contract extension with a group of defence contractors for maintenance work on eight Anzac-class frigates for the next five years, with BAE Systems and CIMIC's UGL among the major beneficiaries.