Any colonist working as a distiller can convert sugar into rum.
Rum sells for more than sugar.
Rum, an alcoholic beverage made from sugar, was thought to be invented in Southeast Asia, but only became one of the world's favorite libations upon its arrival in the New World. Molasses, a sickly-sweet syrup left over when refining sugar, became the key ingredient for the creation of rum and by the 17th century, rum had grown into a profitable business of the Caribbean and New England. Over the next three hundred years, rum production grew into a massive industry -- in fact, rum companies were some of the world's first multi-national corporations.