New Zealand First says the Government must top up a likely shortfall in compensation for the families of those who died in the Pike River mine disaster.
Pike River Coal Ltd has insufficient funds to cover reparation of $3.41 million for their deaths on 19 November, 2010.
Judge Jane Farish also imposed a fine of $760,000 at Greymouth District Court on Friday.
New Zealand First leader Winston Peters said the change in the mining inspectorate's surveillance was a major contributor to the disaster.
He said the Government must now step in and ensure adequate compensation is provided.
Mr Peters said at least $250,000 should be given to each of the families and the two survivors.
The Prime Minister's office says it would be premature to speculate about compensation while some matters are still before the courts.