Ferrovial is set to take a commanding stake in Broadspectrum, formerly Transfield Services, after its board agreed to a buy-out this week.
Broadspectrum had resisted takeover attempts, but the company's board changed its mind following a PNG Supreme Court ruling that the detention of asylum seekers on Manus Island was unconstitutional.
The PNG Government has said it plans to close the centre on Manus Island following the court ruling, but Broadspectrum is contracted to run the centre on Nauru until 2017.
