Aquaculture waste proves profitable for seafood producers stockbot 0 312 2022.11.08 11:12 https://vietnamnews.vn/economy/1352578/aquaculture-waste-proves-profit… + 29 https://vietnamnews.vn/rss/economy.rss + 12 In 2021, Vĩnh Hoàn Corporation's aquacultural byproducts and collagen/gelatin products raked in over VNĐ2.2 trillion, of which the latter contributed VNĐ642 billion.