 It led to the construction of a new multi-purpose Avonmore dairy plant facility in Ballyragget, County Kilkenny, and a Plant they claimed was the biggest food processing facility in Europe at that time.Today that giant global entity is known as Glanbia.Glanbia has its origins in the Irish agricultural co-operative movement that evolved over the last century since first Irish Co-operative in 1889, founded by Horace Plunkett.