Born in Lomaso in 1958 and a graduate of the Istituto Agrario di San Michele all'Adige, Mario worked for the Trento Provincial Federation of Breeders, becoming its commercial director. A district councillor for agriculture in Giudicarie and private secretary to provincial councillor L. Carli, he was councillor and deputy mayor of the municipality of Lomaso. He was a Councillor of the Municipality of Comano Terme, on the Board and Council of the Consortium of Trentino Municipalities, and also Chairman of the Stenico Industrial Electricity Consortium and Terme di Comano Consortium Company, as well as Provincial Councillor during the 15th legislature. He is a Councillor for Urban Planning, Environment and Cooperation, and Vice-President of the Autonomous Province of Trento. He was previously President of the UNESCO Dolomites Foundation.