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Union Contracts (Notes)
3 Months Ended
Mar. 31, 2018
Union Contracts [Abstract]  
Union Contracts Union Contracts
 

In March 2018, members of the International Association of Machinists and Aerospace Workers, Local 1943, ratified a labor agreement covering approximately 1,730 production employees at Middletown Works. The new agreement expires March 15, 2020.

An agreement with the United Steelworkers, Local 1865, that governs approximately 280 production employees at Ashland Works is scheduled to expire on September 1, 2018. An agreement with the United Steelworkers, Local 1190, that governs approximately 200 production employees at Mountain State Carbon LLC is scheduled to expire on March 1, 2019. An agreement with the United Auto Workers, Local 3303, that governs approximately 1,160 production employees at Butler Works is scheduled to expire on April 1, 2019.