Interview with Gil, the founder of MacroSun International, by the downtown newsmagazine St. Louis Core. MacroSun International is one of the most unique international markets in St. Louis. Bringing the works of artisans and craftspeoples together from Southeast Asia is an arduous task, but MacroSun International has succeeded in their goal. Serving as Washington Avenueâs âGateway to the Eastâ, Macrosun imports cultural artifacts from places such as India, Nepal, Vietnam, and Sri Lanka.