 He was granted the license for both construction and operation of the railway, but the project moved on grudgingly; in 1901 the license was renewed, but eventually the so-called Ferrocarril a la Selva failed to materialize.Another transport engineering discipline that Mas engaged in was road construction; in the mid-1880s he contributed to development of local network in the province of Albacete.Last but not least, he was engaged in construction of other industrial facilities; he is credited for design and construction of a La Fé ceramics factory in Buenos Aires.