Carbery has announced that it will be holding its milk price at 31.8c/l excluding VAT for February.
The dairy processor produces a large amount of cheddar for the UK market and is uniquely vulnerable to a hard Brexit, with tariffs on cheddar expected to hit €55m per year.
In response, the west Cork dairy processor has announced its intention to diversify its interests and invest €78m in a new processing facility which will create mozzarella.
Other processors
Three out of six processors have cut milk prices for February supplies so far.
Aurivo held its price at 28.93c/l excluding VAT for February supplies, it announced on Friday.
Kerry cut its price by 1c/l and Glanbia suppliers will receive 0.5c/l less than they did in January.
Lakeland held its price at 30.4c/l excluding VAT, but cut by 0.75p/l in Northern Ireland.
Additional reporting by Odile Evans.