Sigma Alimentos, Mexico’s largest producer and distributor of regrigerated and frozen food, signed an agreement to acquire Peruvian cold meats manufacturer and distributor Braedt, S.A., according to a report in today’s El Economista.  Sigma is a wholly-owned subsidiary of Mexican conglomerate Grupo Industrial Alfa, S.A., whose three other prinipal business groups are Alpek (petrochemicals), Nemak (aluminum auto components), and Alestra (telecommunications).