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Management - Labor Relations | 12 Months Ended
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Dec. 31, 2022
Risks and Uncertainties [Abstract] |
Management - Labor Relations | Management — Labor Relations On December 31, 2022, the Company had approximately 5,500 employees worldwide, including approximately 4,300 hourly employees; the employee amounts exclude employees that were employed at operations classified as discontinued operations. Approximately 34% of those hourly employees were represented by organized labor unions and were employed by mines that generated 16% of the Company’s 2022 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 Construction, Forestry, Maritime, Mining and Energy Union (CFMMEU) 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, 2022 in which the employees are represented by organized labor unions:
Mine |  | Approximate Number of Active Employees Represented |  | Union |  | Current Agreement Expiration Date or Date Amendable
U.S. |  |  |  |  |  |
Kayenta |  | 20 |  | UMWA |  | November 2024
Shoal Creek |  | 330 |  | UMWA |  | December 2024
Australia |  |  |  |  |  |
Wilpinjong |  | 465 |  | CFMMEU |  | June 2024
Coppabella |  | 330 |  | CFMMEU |  | February 2026
Moorvale (1) |  | 225 |  | N/A |  | June 2023
Metropolitan |  |  |  |  |  |
Underground employees |  | 150 |  | CFMMEU |  | May 2025
Handling and preparation plant employees (2) |  | 20 |  | CFMMEU |  | May 2021
Wambo Underground |  |  |  |  |  |
Underground employees |  | 120 |  | CFMMEU |  | November 2025
Handling and preparation plant employees |  | 20 |  | CFMMEU |  | August 2025
(1) Employees of the Moorvale Mine operate on individual contracts under a direct engagement model. Such contracts are modeled after the Company’s former labor agreement with CFMMEU which ended in 2017. According to a memorandum of understanding between the Company and employees, individual contracts may be renegotiated in June 2023. (2) The Company, employees and the CFMMEU are currently negotiating a new labor agreement.

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