He took over the project of planting a forest of Besshi originally launched by Teigo IBA, and in 1917 started afforestation business from Kitami in Hokkaido down to Shiiba Village of Miyazaki Prefecture in Kyushu, and further extended afforestation business to the national forest in Korea.
伊庭貞剛の別子大造林計画を継承し大正6年（1917年）から北海道北見から、九州宮崎県の椎葉村まで山林事業を起こし、また朝鮮の国有林にまで植林を敢行した。