The decision to extradite Kim Dotcom has been ruled legal by the High Court

The Megaupload millionaire had challenged the Justice Minister's decision to surrender him to the US earlier this year, arguing the charges against him are politically motivated.

In 2012, the US requested Dotcom be extradited on charges of copyright infringement, money laundering and wire fraud.

Dotcom fought the extradition process all the the way to the Supreme Court and his latest effort was a judicial review.

Dotcom's lawyer Ron Mansfield told RNZ there is more to come.