A Trump administration port fee proposal designed to boost the U.S. shipbuilding industry could scramble international intermodal traffic, shift some container business to ports in Canada and Mexico, and help Canadian National and Canadian Pacific Kansas City railroads in the process.
In February, the Office of the U.S. Trade Representative floated a plan to impose steep fees on Chinese vessels that call on U.S. ports. Vessels operated by Chinese companies would face a $1 million port call fee....