The Journal of Commerce points out that the 2 percent increase in St. Lawrence Seaway traffic is due in part to increased cargos originating at ports in Indiana, Wisconsin, and Ohio.

The port of Green Bay, Wis., tallied a 26 percent year-over-year increase in tonnage, and Toledo is 4 percent ahead of last year in most major categories. Steel manufacturer Arcelor-Mittal reported its first major export shipment since 2008, 18,000 metric tons from Burns Harbor, Ind., to Macedonia.

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