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Most businesses report minimal impact, despite claims from driver groups that the strike is causing "massive disruptions."
A strike could come as soon as Monday, according to a statement from Teamster affiliate Justice for Port Truck Drivers.
The third-party logistics provider also cut its first quarter loss in half.
Chicago-based SEKO has expanded in recent years into a full-service logistics provider with transportation, warehousing, supply chain, home delivery and e-commerce capabilities.
Announced on the heels of a port driver labor strike, Eco Flow will use "free-flow" to move containers out of terminals to off-dock yards.
Such an alliance could have a "competitive edge," according to industry consultant Drewry.