A prior arrangement to sell the winery to a syndicate of Chinese buyers for $4 million fell through last month after one syndicate member, a permanent resident who lived here from 2003 to 2010, had not lived in New Zealand in the last 12 months.
McKay said he could not comment on how much the new buyers would pay and would not say how it compared to the previous offer.
The deal is due to settle on December 20.
McKay said the new owners intended to rebrand Ascension's restaurant to serve Italian food. The purchasers would be honouring all function commitments.
Ascension was established by Darryl and Bridget Soljan in 1994.
It was placed into receivership and put up for sale in May.
The estate includes 4ha of vines, a winemaker's cottage, a restaurant licensed for 120 guests and a function venue for 300 people.