 In 1916 de Cerralbo, in agreement with the regional jefé Junyent and the provincial one Duque de Solferino, nominated Mas the leader of the comarcal party structures in Vich.Following shakeup in the regional executive and resignation of Junyent, in 1917 Mas entered the Catalan Junta Regional, this time led by Solferino.The late 1910s was the period of Mas’ most active stand.