Itoh's company grew considerably in the wake of World War I, with offices in the United States, India, the Philippines and China, and the firm began to handle machinery, automobiles and metals in addition to its core business of textiles. However, a recession in 1920 left the company deeply in debt, and unlike the major zaibatsu firms of the time, it had no captive bank to finance its business. In 1921, the company split in half, with one half forming what is now known as Marubeni. The company's performance improved in the 1930s, but as World War II began in the latter half of the 1930s, all trading companies' business became increasingly war-oriented. In 1941, Itoh and Marubeni re-combined to form Sanko KK, which merged with two other companies to form Daiken Co., Ltd. in 1944.