south american supermarket south american supermarket is a business based in the uk supplying many products from south american such as yerba mate alfajores ducle de leche and guarana antarctica the business began from a love for yerba mate after the owner david henry spent a year living in buenos aires on his return to the uk he began putting together the pieces for his own business offering the people of the uk the same experience and enjoyment from the products that are part of life in south america south american supermarket trade online through and in the first few months have seen the busines grow and have received some high profile orders from the likes of hbo who approached south american supermarket to source mate gourds which will later be used as props in the upcoming drama series game of thrones