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Management - Labor Relations
 12 Months Ended
Dec. 31, 2024
Risks and Uncertainties [Abstract]  
Management - Labor Relations Management — Labor Relations
On December 31, 2024, the Company had approximately 5,600 employees worldwide, including approximately 4,300 hourly employees; the employee amounts exclude employees that were employed at operations classified as discontinued operations. Approximately 40% of those hourly employees were represented by organized labor unions and were employed by mines that generated 21% of the Company’s 2024 coal production from continuing operations. In the U.S., the hourly employees of one active mine and one inactive mine are represented by an organized labor union. In Australia, the coal mining industry is unionized and the majority of hourly workers employed at the Company’s Australian mining operations are members of trade unions. The Mining and Energy Union (MEU) generally represents the Company’s Australian subsidiaries’ hourly production and engineering employees, including those employed through contract mining relationships.
The following table presents the Company’s active and inactive mining operations as of December 31, 2024 in which the employees are represented by organized labor unions:
MineApproximate Number of Active Employees RepresentedUnionCurrent Agreement Expiration Date or Date Amendable
U.S.
Kayenta (1)
30UMWANovember 2029
Shoal Creek (2)
310UMWADecember 2024
Australia
Wilpinjong (3)
460MEUJune 2024
Coppabella330MEUFebruary 2026
Moorvale (3)
165MEUJune 2023
Centurion130N/A January 2028
Metropolitan
Underground employees (3)
165MEUMay 2025
Handling and preparation plant employees15MEU January 2027
Wambo Underground
Underground employees90MEUNovember 2025
Handling and preparation plant employees20MEUAugust 2025
(1)    The Company and Western Surface mine employees agreed to a new five-year term labor agreement in November 2024.
(2)    The Company is currently negotiating a new labor agreement with the UMWA and employees.
(3)    The Company is currently negotiating a new labor agreement with the MEU and employees.