Possible labor strikes at U.S. East and Gulf coast ports and Canadian railways may lead to volatility in container freight rates by causing supply-chain disruptions for the container industry and cargo owners, according to an industry expert. “With the looming strikes at Canadian railways and U.S. ports, we may see an immediate uptick in freight rates as market participants brace for significant disruptions,” said Christian Roeloffs, CEO of German online container marketplace Container xChange. Read Also: Stock Of The Day: Reversal For SFL Corp? Why Investors Are Concerned “The possibility of …