Cargo & Commodities

Each year, millions of tons of materials are shipped efficiently through the Great Lakes/St. Lawrence Seaway System. This section covers the various bulk cargo, from iron ore and petroleum to stone and cement, being transported along the system.

Montreal Port Authority Receives Federal Authorization to Advance Contrecœur Expansion

The Montreal Port Authority (MPA) has received authorization from Fisheries and Oceans Canada to expand its port facilities in Contrecœur and continue construction of the new container terminal. Issued under the Fisheries Act and... Read More

General Cargo Down, Grain Trade Up on the Great Lakes in 2025

Preliminary traffic results released by the St. Lawrence Seaway Management Corporation (SLSMC) show 37 million metric tons of cargo transited the Great Lakes-St. Lawrence Seaway system during the 2025 navigation... Read More

Unlocking the Seaway’s Potential

Stakeholders have long said that the Great Lakes-St. Lawrence Seaway has the potential to increase service and contribute even more to North American trade and the international maritime industry. From efforts to expand container service to... Read More

Winding Down

As the Great Lakes-St. Lawrence Seaway System approaches its seasonal closure, the rhythm of maritime commerce slows. The Montreal–Lake Ontario section will cease transits after December 24, with all ships required to clear... Read More

Algoma Steel to Lay Off 1,000 Workers, Close Blast Furnace

Algoma Steel plans to lay off about 1,000 workers and close its blast furnace and coke making operations in early 2026. Algoma cites the high tariffs imposed by U.S. President... Read More

Limestone and Iron Ore Trade Down on the Great Lakes in November

The Lake Carriers’ Association reports that shipments of limestone on the Great Lakes totaled 2.4 million tons in November, a decrease of 18.1% compared to 2024. Limestone cargos were also... Read More

Great Lakes Iron Ore and Limestone Trade Down in October

The Lake Carriers’ Association reports shipments of iron ore on the Great Lakes totaled 4.4 million tons in October, a decrease of 1.3% compared to 2024. Shipments were 8% below... Read More

Great Lakes Limestone and Iron Ore Trade Down in September

Shipments of limestone on the Great Lakes totaled 3.3 million tons in September, a decrease of 11.5% compared to 2024, according to the Lake Carriers’ Association. Limestone cargos were also... Read More

Great Lakes Limestone and Iron Ore Trade Down in August

Shipments of limestone on the Great Lakes totaled 3.6 million tons in August, a decrease of 3% from 2024. Limestone cargos were also below the month’s 5-year average by 4.4%.... Read More

Great Lakes Iron Ore and Limestone Trade Down in July

Shipments of iron ore on the Great Lakes totaled 5.1 million tons in July, a decrease of 10.9% compared to 2024, according to the Lake Carriers’ Association. Shipments were below... Read More

Two Decades of Wind Energy Cargo at Duluth’s Clure Terminal

In August 2025, the Asian Spirit arrived at Duluth’s Clure Public Marine Terminal, delivering 39 wind turbine blades destined for North Dakota. This shipment marked the culmination of a six-voyage... Read More