The cooperative this month cut its payout to farmers for this season to $3.90 per kilogram of milk solids, below industry body Dairy NZ's estimate of the $5.25/kgMS needed by the average farmer to break even.
"While it is difficult for the people involved, we have a responsibility to our farmer shareholders and unit holders, and our customers to be as efficient as possible across our business, especially given the low milk price," said Mark Leslie, Fonterra's director of New Zealand manufacturing.
The final day for processing at the site is expected in mid to late April.
Units in the Fonterra Shareholder's Fund, which gives investors access to the cooperative's earnings stream, gained 0.2 per cent at $5.85. They've fallen by 2.5 per cent since the start of the year, outperforming the broader S&P/NZX50 Index's 4 per cent decline.