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Boeing and striking machinists in St. Louis will involve a federal mediator in their next round of contract negotiations, scheduled for September 30, 2025. The strike, which began on August 4, has lasted nearly nine weeks and involves about 3,200 employees at Boeing Defense sites in St. Louis and St. Charles, Missouri, as well as Mascoutah, Illinois.
The International Association of Machinists and Aerospace Workers District 832 represents the workers who maintain advanced fighter jets and other weapons systems important to U.S. and allied defense. The union is seeking higher wages and better working conditions.
Last week, workers voted in favor of a union-backed proposal after rejecting Boeing’s previous two offers. The four-year agreement proposed by the International Association of Machinists and Aerospace Workers District 837 includes a $10,000 ratification bonus—more than double Boeing’s earlier offer—and addresses concerns such as pay increases for top-scale members and improvements to 401(k) benefits. Boeing described the rejection as “disappointing,” stating that its revised agreement was the most competitive contract package it had ever offered to its St. Louis workforce.
