The trade agreement negotiated by the European Union and Mercusor countries will soon be voted on by EU member states.
We have heard lots of opposition to it from farming groups.
But today we are going to hear from someone in favour of it, who says failure to ratify it would be a historic mistake for Ireland.
And he says alarming stories about hormone and antibiotic-laden beef are scaremongering.
Eoghan Murphy has been speaking to Peter Power, the head of European Commission Representation in Ireland.