Here is the sourcing map for a large Japanese Trading company called Wismettac. Note that they have global sourcing activity. Several of these companies including Inabata, Vox Trading, Shoei Foods and many others service the food industries large and small.
While working the Japan Bakery Expo last week, I met dozens of bakery and confectionery companies who currently use or want to use blueberries. They need less than full-container loads (40-foot). The trading companies serve a very important role in serving the food industry.