As part of an international corporation, at Colas we share experiences and create opportunities. Thus, at the end of last week, colleagues from Colas Mineral visited colleagues from Colas Északkő in the Tokaj region, Hungary. As part of the visit, they visited the Tallya quarry (of volcanic origin), Colas Északkő HO in Tarcal, exchanged experiences and held a monthly operational meeting of Colas Mineral.