Government ministers have approved the purchase of the Crafar farms by the Chinese company Shanghai Pengxin, but the decision has been heavily criticised by a rival bidder.
In a statement, Land Information Minister Maurice Williamson said he and Associate Finance Minister Jonathan Coleman had approved the Overseas' Investment Office's (OIO) new recommendation to allow the purchase of the 16 farms.
He said the ministers were satisified that even on the most conservative approach, the application met the criteria set out in the Overseas Investment Act.
Mr Coleman said the approval was given with 27 conditions to ensure the investment by Milk New Zealand - Shanghai Penxin's subsidiary in New Zealand - would deliver substantial benefits to New Zealand.
The bid was initially approved in January but the High Court returned it to the OIO, saying there were matters it had not properly considered in its original recommendation.