CSX, CPKC upgrade Southeast Mexico Express with dedicated train, faster transit times

JACKSONVILLE, Fla., May 06, 2026 (GLOBE NEWSWIRE) -- CSX Corp. (NASDAQ: CSX) and Canadian Pacific Kansas City (TSX:CP) (NYSE:CP) (CPKC) today announced upgrades to the Southeast Mexico Express (SMX) premium service featuring faster transit times with more origin and destination options for customers looking to reach new markets.