Since 2010, Tsuyoshi Kato has been managing two forest plantations on peatland in West Kalimantan, Indonesia. His companies are the group member of Sumitomo Forestry Co., Ltd. in Japan. He has spent most of his time thinking about the balance between wood productivity and biodiversity in tropical forestry, and he has spent more than ten years conducting field research in Sumatra and West Kalimantan. He and his colleagues have been developing a peatland management system with integrated technologies to enhance wood productivity while reducing ecological impacts on peatland based on a scientific basis.