CSX Corporation and Canadian Pacific Kansas City (CPKC) have launched the Southeast Mexico Express (SMX), a new east-west rail corridor connecting Mexico, Texas, and the southeastern U.S. This service, operational since December 1, 2024, enhances transit times, capacity, and sustainability for automotive and intermodal customers. Leaders from both companies emphasize the collaboration’s role in improving cross-border logistics and meeting evolving customer needs. Key benefits include direct connectivity, faster transit, secure transportation, and reduced emissions by substituting trucks with trains.