Seaway Grain Shipments Fall as Overall Cargo Traffic Declines Through May

Traffic through the St. Lawrence Seaway continued to lag last year’s pace through May, with grain shipments showing one of the steepest declines among major commodities.Total cargo moving through the system reached 8.06 million tonnes year-to-date, down 3.3% from the same period in 2025. Grain volumes were particularly weak, falling 12.6% from a year earlier to 2.61 million tonnes, a decline of 377,000 tonnes.Other bulk commodities showed mixed results. Dry bulk shipments increased 8.7% to