Rosamonte is one of the most popular Brands of yerba mate in Argentina. As the name suggests, Rosamonte Traditional Flavour is a traditional, full-bodied Argentine yerba with stems and allowed to mature for 12 months. Rosamonte is produced by HREÑUK S.A, a company founded in 1936 in Apóstoles in the Province of Misiones by Mr Demetrio Hreñuk, the son of Ukranian immigrants.