TOKYO -- Much-awaited shipments of wheat, maize and soybeans left Ukraine early this month, starting a chain reaction that has at least temporarily toppled high commodity prices.

Some commodity prices have returned to their prewar levels, partly thanks to an agreement allowing grain carriers to leave Ukrainian ports, but Asian consumers are not benefiting. (Nikkei montage/Reuters)
Expert warns of possible 'second wave' as fertilizer costs remain a problem