Reef authority watching QLD Nickel closely

AAP

The Great Barrier Reef Marine Park Authority is watching Queensland Nickel "very closely" after Clive Palmer's besieged company was placed in administration.

Amid concerns a major clean-up could be needed if the Queensland refinery closes, authority chairman Russell Reichelt is consulting with the state government and met with officials last Friday.

However, the authority told a Senate committee on Monday it did not know what the cost of rehabilitation would be but understood the company had to retain a certain amount on its books for a clean-up.