About 33,000 Boeing factory workers represented by Districts 751 and W24 of the International Association of Machinists and Aerospace Workers union (IAM) announced on September 12 its members had voted 94.6% to reject a contract offer from the company and 96% for a strike.

Negotiators at Boeing and its largest union are due to resume talks over a labor contract on Tuesday, as the planemaker seeks to bring a swift end to a strike that is costing the indebted company an estimated $100 million a day.

Boeing (BA) and its largest union partner are resuming contract negotiations with federal mediators present Wednesday, the International Association of Machinists and Aerospace Workers (IAM) said in a social media post.