Mega's back-door listing on the share market is an unusual move for the size of the deal.
At $210 million it will be one of the biggest if not the biggest to take place on the New Zealand share market.
Back door listings - where an already listed company buys the assets of another company are typically routes used by smaller companies to get on to the stock exchange.
They are seen as a cheaper way to get onto the market than a full initial public offer which can cost $5 million at the minimum once lawyers, investment bankers and advisor fees are paid.