The union representing more than 700 Spirit AeroSystems engineers presented the company with a counterproposal on wage and benefit issues today.
The engineers are represented by the Society of Professional Engineering Employees in Aerospace. The current contract expires July 11.
Significant differences still exist between the parties, the union told workers in a memo.
But “SPEEA is working diligently to arrive at an agreement that is of mutual benefit and our team is able to recommend to members,” it said.
Talks on Wednesday will focus around the final major issues.