The Financial Markets Authority intends to file civil proceedings against directors and promoters of Hanover Finance Ltd, Hanover Capital Ltd, and United Finance Ltd.
Proceedings will relate to statements made in the December 2007 prospectuses and subsequent advertisements of the companies.
The FMA said that it anticipated that a claim will be filed in 2012, against the signatories to the prospectuses, seeking pecuniary penalty orders and compensation for investors.
About 16,000 investors lost more than $500 million following the collapse of the companies and the sale of Hanover's assets to Allied Farmers.
Former Hanover Finance chairman Greg Muir said today's announcement by the FMA was "disappointing."