Mastellone Hermanos S.A. (mostly known for its trade name: La Serenísima) is an Argentine dairy company headquartered in the city of General Rodríguez in Buenos Aires Province. The company, founded by Antonino Mastellone in 1929, is partially owned by Grupo Arcor and Bagley, which purchased 25% of the firm in 2015. Starting as a small firm to produce cheese, the company expanded until becoming the leader in the Argentine dairy market and one of the largest companies in the country. The name La Serenísima was taken from an Italian aviation squadron that fought in the World War I. More information...
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