West Coast ports are shutting down as union workers "no show" after a breakdown in negotiations with port management. A source close to the situation told CNBC the port shutdowns are expected to spread across the West Coast as a result of lack of sufficient labor as workers protest over wage negotiations in contract talks with port management. Two of the Oakland port marine terminals — SSA, its largest, and TraPac — were closed as of the morning shift on Friday, said Robert Bernardo, spokesman for the Port of Oakland. The stoppages come at a time when activity at West Coast ports had picked up again after losing volume to the East Coast ports due to concerns about the volatile labor situation. At the Port of Oakland, total container volume increased for two consecutive months, with port officials optimistic about the upswing.

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Persons: TraPac, Robert Bernardo, Bryan Brandes, Peter Friedmann Organizations: CNBC, SSA, Port, Fenix Marine, Oakland Maritime, Agriculture Transportation Coalition Locations: Coast, Port, Oakland, West, Port of Oakland, Los Angeles, Port of Hueneme, West Coast, East, South Korea, China