Business areas run the gamut, including industrial raw materials, agricultural products, and high technology.

By the 1980s it had expanded its business to include overseas production for the Toyota Group, and had established a second head office in Tokyo.

Kasho was a trading company focused on the Southeast Asia markets and dealt in rubber, paper, food, chemicals and general merchandise.

[2] Toyota Tsusho then acquired Tomen Corporation, another Japanese trading company, on April 1, 2006.

This acquisition expanded Toyota Tsusho's food, textiles, chemicals and energy business and caused it to leapfrog Sojitz to become the sixth-largest general trading company in Japan.