Wikipedia
S.A. Mirat, also known as Grupo Mirat (Mirat Group), or just as Mirat, is a Spanish company founded in 1812 in Salamanca, dedicated mainly to production of manures and fertilizers. Nowadays it is one of the 100 biggest companies in Castile and León and the biggest one in the agricultural sector in the province of Salamanca. Its commercial activity is focused on Spain and Portugal.
Its trademark Vitaterra is the largest Spanish manufacturer of garden manures and fertilizers.
The factories and structures of Mirat is the only well conserved prototype of the industry of Salamanca from the 19th century. The interior of the factory contains the remains of the Convent of Nuestra Señora de la Victoria (Our Lady of the Victory) of the 15th century, which belonged to the Order of Hieronymites.