In addition, he independently traded with the Ming Dynasty in China and expanded his influence to Kitakyushu (northern Kyushu) and Chugoku regions and even to the central part of Japan after fighting with the Hosokawa clan in Seto Inland Sea.
また、中国の明王朝とも独自の貿易を行ない、瀬戸内海では細川氏と対立し、北九州から中国地方、さらに中央と勢力を大きく拡大していた。