In an IPO, Hart would be expected to retain a cornerstone stake of around 30 per cent in the business, which is comprised of more than 50 Carters Building Supplies businesses in New Zealand, Woodproducts New Zealand and Woodproducts Australia. Brands include Pinex and Laserframe.
Last year it was reported CHH's building supplies business was for sale after taking combined charges in 2011 and 2012 of $393.8 million in impairments on its underperforming timber and plywood businesses across the Tasman on earnings of around $2.1 billion.
In 2006 Hart paid $3.6 billion for Carter Holt Harvey, which was then comprised of forests, farms and a pulp and paper division as well as the building supplies and timber products part of the business.
In 2013 Hart finished offloading all 30 Carter Holt Harvey farms that were converted from forests in Rotorua and South Waikato.
Bloomberg ranked Hart at 145 on its billionaires list last year with a fortune of US$8.4 billion ($11 billion), down US$342 million for the year.