Shipping and Ports: The Economic Landscape

Canada’s marine transportation network moves grain, potash, coal, petroleum, steel, automobiles, and manufactured goods alongside the containerized imports that fill store shelves. Container ships and cranes are its visible face, but bulk and breakbulk cargo make up most of the tonnage. In 2024, roughly 21 percent of Canada’s international merchandise trade by value moved by marine mode, against a total trade figure of about $1.55 trillion. The Port of Vancouver alone handled cargo valued at approximately $240 billion in 2024 and accounts for roughly one dollar in every three of Canada’s trade in goods beyond North America.

That dependence is easy to overlook. The grain that leaves Thunder Bay, the potash that loads at Vancouver, the petroleum products that move through Saint John, the consumer goods that arrive at Montreal: each of these flows connects the Canadian economy to global markets through a system that runs continuously and draws little public attention until something goes wrong.

The system is built around four distinct corridors, each with its own trade orientation, cargo mix, and strategic role. The Pacific corridor is led by Vancouver and Prince Rupert and is oriented strongly toward Asia-Pacific trade. Vancouver is Canada’s largest and most diversified port, handling containers, automobiles, grain, coal, potash, petroleum products, and cruise traffic. In 2024 it moved 158 million tonnes and 3.5 million TEUs. Prince Rupert is smaller but strategically positioned as the closest North American port to Asia, connected directly to CN’s transcontinental rail network. In 2024 it reported 23.1 million tonnes of port-wide volume and 739,315 TEUs at Fairview Terminal, with approximately $60 billion in annual trade moving through the gateway.

The Atlantic corridor includes Halifax and Saint John and supports trans-Atlantic trade with Europe, the Mediterranean, and beyond. Halifax is a full-service container gateway and major cruise port, reporting 509,273 TEUs in 2024. Saint John has been rebuilding its position through a $205 million modernization project that deepened channels, expanded berths, and improved intermodal capacity. By 2025 it had grown from under 80,000 TEUs in 2020 to nearly 240,000 TEUs, and was actively marketing itself as an alternative route for Ontario-origin cargo seeking non-US market access.

The St. Lawrence and Great Lakes system ties Montreal, Quebec City, Hamilton, Thunder Bay, and related facilities into a binational inland waterway network that matters especially for grain, steel, fuels, and manufacturing supply chains. Montreal handled 35.41 million tonnes and 1,464,320 TEUs in 2024 and is the main container gateway for Quebec and much of Central Canada, connected directly to both national railways. The St. Lawrence Seaway moved about 37 million tonnes in its 2024 navigation season, which ran 295 days, the longest planned season in its history, though it remains a seasonal system, not a year-round container gateway.

The Northern corridor is operationally vital but infrastructure-thin. Churchill, Iqaluit, and Tuktoyaktuk are the key northern ports, with Churchill and Iqaluit the only deep-water Arctic facilities. Much of the northern marine economy is about essential community supply, not discretionary commercial growth: fuel, food, building materials, and annual resupply for communities with no road connections to the south. The federal government has committed more than $150 million over ten years through the Oceans Protection Plan for safety equipment and basic marine infrastructure in northern communities, which signals both real policy priority and how foundational the underlying infrastructure challenge remains.

How ports actually function is worth understanding, because the institutional model is an unusual one. The 17 Canada Port Authorities are federally incorporated, arm’s-length, non-share corporations. They are expected to be financially self-sufficient, and they operate on a landlord model: managing federal port land, common-use infrastructure, land-use planning, and the commercial framework within which others operate. Specialized terminal operators, companies like DP World, PSA, and Trigon Pacific Terminals, run the container terminals, bulk terminals, and tank farms. The port authority is closer to a planner and systems coordinator than a cargo handler. That structure explains why port finance and terminal finance are distinct questions, and why major expansion projects involve multiple layers of public and private capital.

The cargo moving through this system spans several distinct markets. Containerized goods, dry bulk including grain, potash, coal, and ore, liquid bulk including petroleum and chemicals, and non-containerized cargo including steel and forest products each follow different commercial logics, infrastructure requirements, and financing structures. Algoma Central, one of Canada’s largest domestic marine operators, illustrates this in its publicly reported results: domestic dry-bulk revenue, product tanker revenue, and ocean self-unloader revenue each respond differently to market conditions, making marine transport look more like a portfolio of specialized businesses than a single industry.

What the system shares across all these segments is a deep dependence on rail. CN and CPKC handle most Canadian Class I rail traffic and are integral to how cargo reaches and leaves every major port. Vancouver connects to CN, CPKC, and BNSF. Montreal has dockside rail links to both national railways. Prince Rupert’s entire container strategy is built around CN’s transcontinental corridor. That rail dependence is a structural feature that affects capacity, reliability, and the financial risk profile of port-adjacent investments in ways that are not always visible in port-level analysis alone.