SELF-INSURANCE

9 Months Ended

Sep. 30, 2024

SELF-INSURANCE

SELF-INSURANCE

(11) SELF-INSURANCE

We self-insure our non-leased underground mining equipment. Such equipment was allocated among four mining units dispersed over seven miles and seven mining units dispersed over eleven miles, at September 30, 2024 and December 31, 2023, respectively. The historical cost of such equipment was approximately $247.3 million and $262.0 million as of September 30, 2024, and December 31, 2023.

We also self-insure for workers’ compensation claims. Restricted cash of $5.8 million and $4.3 million as of September 30, 2024, and December 31, 2023, represents cash held and controlled by a third party and is restricted primarily for future workers’ compensation claim payments.