Gavilon, a privately-held firm based in Omaha, Nebraska, operates grains, fertilizer and energy commodities distribution and storage network.
Marubeni noted that the acquisition will give it control over 140 loading sites, and provide access to a wide grains storage and distribution network in the US as well as sites in regions such as Brazil, Australia and the Ukraine.
Once the deal is complete, Marubeni expects to handle 55 million tons of grain annually, boosting its competitiveness in the global grains trade.
Gavilon was established in 2008 when Ospraie Special Opportunities fund acquired ConAgra Foods' commodity trading and grain storage operations. The private investors paid $1.6bn in cash and agreed to give ConAgra $525m in debt securities in the deal.
Following the acquisition, Gavilon's owners have expanded its grain storage network through acquisitions and construction. It currently has about 2,000 employees worldwide.