CHICAGO (Reuters) – Food and agriculture group Cargill Inc has appointed Joe Stone since it’s new head of agricultural supply chain, effective June 1, the U.S.-based company said on Thursday.

David Webster can take on the head of Cargill's feed making animal nutrition business, a part vacated by Stone, Cargill said inside of a statement.

Longtime Cargill executive GJ van den Akker will retire as enterprise lead for Cargill’s Agricultural Supply Chain in 2020, the corporation said. The provision chain business includes origination, trading, processing, and distribution of crops like corn, wheat and soybeans.

Cargill, the greatest privately-held U.S. company, has cut spending to cancel out the U.S.-China trade war, swine fever in Asian hogs and slumping U.S. ethanol prices.