Topper's is a distillery. and the rhum is made right there in their facility. Below is a little piece about their facility. If you would like more information just let me know.
"A knowledgeable guide will give you a hands-on tour as you walk through the 6,000 sq. Ft. distillery. You will learn a little rum history and behind the scenes look at how they ferment, distill, and filter rum."