In 2002, the railroad began serving a new customer, Ciment Quebec, in Bow. This extremely profitable business caught the eye of Guilford, which had been watching New England Southern build up business in the area. Guilford, which had inherited ownership of the tracks from the B&M in 1983, rebranded itself Pan Am Railways in 2006 and announced its intention to discontinue the New England Southern's lease, so that they might assume operations themselves. Pan Am filed with the Surface Transportation Board for adverse discontinuance of the lease in 2008, and despite a lengthy legal battle and the protests of every freight customer, the filing was approved on April 29, 2010. Pan Am was to assume control of the Manchester to Concord trackage.