UPDATE 1-Tentative deal reached for U.S. West Coast ports; relief for trans-Pacific trade
February 21, 2015 at 14:37 PM EST
LOS ANGELES, Feb 21 (Reuters) - A group of shipping companies and a powerful dockworkers union reached a tentative labor deal after nine months of negotiations, settling a dispute that disrupted the flow of cargo through 29 U.S. West Coast ports and snarled trans-Pacific maritime trade with Asia.