The North American freight scene is being revolutionized, courtesy of an invigorating partnership between Canadian Pacific Kansas City (CPKC) and CSX Corporation. The two behemoths, together, have launched the Southeast Mexico Express (SMX) — a groundbreaking new rail corridor linking Mexico, Texas, and the U.S. Southeast with greater speed and efficiency than ever before.

Launched in December 2024, the SMX corridor is already making waves across the logistics and transportation industries. Designed to move everything from automotive goods to intermodal and carload freight, this direct Class I connection is unlocking faster transit times, greater shipping capacity, and a more sustainable way to move goods across the continent.

For customers, this isn’t just a new route — it’s a strategic advantage. SMX seamlessly links major markets and expands access in all directions, offering a robust and reliable alternative to traditional freight routes. It also reflects a growing demand for streamlined cross-border shipping, particularly as supply chains continue to evolve post-pandemic.

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CPKC CEO Keith Creel emphasized that this corridor is the result of both innovation and synergy: “The SMX is already proving its value, allowing us to combine the strengths of CPKC and CSX to offer shippers faster, more efficient, and more reliable service.”

Echoing that, CSX President Joe Hinrichs described the launch as a milestone that pushes the boundaries of connectivity and long-term network growth. “It’s about more than expanding service,” he said. “It’s about helping our customers grow, adapt, and thrive in a changing world.”

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Multimodal logistics leader Schneider National is already capitalizing on the SMX, citing major gains in both reliability and efficiency for their clients. As CEO Mark Rourke put it, “This corridor represents a significant improvement in cross-border logistics, and it’s reinforcing our ability to meet the evolving needs of shippers.”

Beyond business performance, the SMX also brings a compelling sustainability angle. By moving freight via rail instead of road, the corridor helps reduce emissions and road congestion—replacing the equivalent of 300 trucks per train. Combined with secure border crossing tech and infrastructure upgrades, the service is positioning itself as the future of green logistics.

In a world where every day—and every mile—counts, the Southeast Mexico Express is more than a new route. It’s a bold reimagining of what cross-border rail can be.

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