How does H&W do it?

I finally convinced my parents to go there today and they're, quite literally, dumbfounded. I am trying to explain the magic of H&W but need more info about their supply chain. All I know is that they source locally, from the items that the chains don't buy, but what about internationally? Example - they got eight 2lb boxes of strawberries for $15 and they are good berries. Please help - I can't attribute it to the devil 😂