The three companies agreed to make use of fruit that would otherwise be discarded or returned to producers due to the removal of products from their packaging during import inspections or not meeting size standards. As part of their food waste reduction efforts, they decided to support the zoo. According to the companies, ANA Foods now provides 250 kg of Vietnamese bananas per month, while Sunoupuru Sapporo supplies 150 kg of Aomori apples, 200 kg of Mikkabi mandarins from Shizuoka Prefecture, and sweet potatoes from Oita Prefecture (with quantities still being adjusted). The fruit is mainly fed to elephants, monkeys and brown bears. All the bananas and two-thirds of the mandarins eaten by the zoo's animals now come from donations.