The Maori Council has filed an appeal against this week's High Court dismissal of its legal bid to delay the sale of Mighty River Power shares.
Maori Council lawyer Felix Geiringer last night confirmed on Twitter that court papers had been filed yesterday.
Mr Geiringer indicated that the council had filed papers with the Court of Appeal but the Crown had asked for the case to go directly to the Supreme Court.
If the Supreme Court refuses to hear the case it would go to the Court of Appeal on January 31, he said.
The Government intends selling up to 49 per cent of Mighty River some time between March and June in the opening move of its partial asset sales or "mixed ownership model" programme which it hopes will raise as much as $7 billion.