Thursday’s deal came after Biden administration officials met with foreign-owned shipping companies before dawn on Zoom, according to a person briefed on the day’s events who asked not to be identified because the talks were private. The White House wanted to increase pressure to settle, emphasizing the responsibility to reopen the ports to help with recovery from Hurricane Helene, the person said.

Acting Labor Secretary Julie Su told them she could get the union to the bargaining table to extend the contract if the carriers made a higher wage offer. Chief of Staff Jeff Zients told the carriers they had to make an offer by the end of the day so a manmade strike wouldn’t worsen a natural disaster, the person said.

By midday the Maritime Alliance members agreed to a large increase, bringing about the agreement.