The outlook for port and other logistics services providers in the U.K. post-Brexit still remains cloudy. While the latest Parliamentary challenge to the British government’s proposed plans has been overcome the negotiations on what sort of customs arrangements will apply are far from complete. That comes as port operators have begun to see a downturn in volumes. The number of shipments handled in the first quarter fell by 1% on a year earlier, the first decline since June 2013. That was led by a reversal in fortunes of Europe-centric Dover whose volumes fell 0.4% after a 2% rise the qua...