On the other hand, in alliance with Ryoma SAKAMOTO, the Kaientai (Japan's first modern corporation established by Ryoma SAKAMOTO) and the Rikuentai (military group organized by Shintaro NAKAOKA, he actively promoted the measures for the encouragement of new industry led by the former lord Toyonobu YAMAUCHI, through a clan-owned trading enterprise Kaiseikan.
他方で坂本龍馬や海援隊、陸援隊と提携するなど、元藩主山内豊信を中心に藩営商社・開成館を通じて殖産興業政策を推進した。