0001710366-25-000014 Sample Contracts

CORE NATURAL RESOURCES, INC. (the “Company”) RESTRICTED STOCK UNIT AWARD AGREEMENT
Restricted Stock Unit Award Agreement • May 8th, 2025 • Core Natural Resources, Inc. • Bituminous coal & lignite mining

Effective as of the Award Date, Core Natural Resources, Inc. (the “Company”) has awarded the Grantee the number of restricted stock units (the “RSUs”) set forth above pursuant and subject to the provisions of the Core Natural Resources, Inc. 2020 Amended and Restated Omnibus Performance Incentive Plan (as may be amended from time to time, the “Plan”) and the terms and conditions set forth in this Restricted Stock Unit Award Agreement (the “Agreement”), which Agreement includes the “Terms and Conditions of RSU Agreement” attached hereto as Schedule A.

CORE NATURAL RESOURCES, INC. (the “Company”) PERFORMANCE RESTRICTED STOCK UNIT AWARD AGREEMENT
Performance Restricted Stock Unit Award Agreement • May 8th, 2025 • Core Natural Resources, Inc. • Bituminous coal & lignite mining

Effective as of the Award Date, Core Natural Resources, Inc. (the “Company”) has awarded the Grantee the number of performance-based restricted stock units (the “PSUs”) set forth above pursuant and subject to the provisions of the Core Natural Resources, Inc. 2020 Amended and Restated Omnibus Performance Incentive Plan (as may be amended from time to time, the “Plan”) and the terms and conditions set forth in this Performance Restricted Stock Unit Award Agreement (the “Agreement”), which Agreement includes the “Terms and Conditions of PSU Agreement” attached hereto as Schedule A (including the attached exhibit).

CORE NATURAL RESOURCES, INC. (the “Company”) RESTRICTED STOCK UNIT AWARD AGREEMENT
Restricted Stock Unit Award Agreement • May 8th, 2025 • Core Natural Resources, Inc. • Bituminous coal & lignite mining

Effective as of the Award Date, Core Natural Resources, Inc. (the “Company”) has awarded the Grantee the number of restricted stock units (the “RSUs”) set forth above pursuant and subject to the provisions of the Core Natural Resources, Inc. 2020 Amended and Restated Omnibus Performance Incentive Plan (as may be amended from time to time, the “Plan”) and the terms and conditions set forth in this Restricted Stock Unit Award Agreement (the “Agreement”), which Agreement includes the “Terms and Conditions of RSU Agreement” attached hereto as Schedule A.

CORE NATURAL RESOURCES, INC. (the “Company”) PERFORMANCE RESTRICTED STOCK UNIT AWARD AGREEMENT
Performance Restricted Stock Unit Award Agreement • May 8th, 2025 • Core Natural Resources, Inc. • Bituminous coal & lignite mining

Effective as of the Award Date, Core Natural Resources, Inc. (the “Company”) has awarded the Grantee the number of performance-based restricted stock units (the “PSUs”) set forth above pursuant and subject to the provisions of the Core Natural Resources, Inc. 2020 Amended and Restated Omnibus Performance Incentive Plan (as may be amended from time to time, the “Plan”) and the terms and conditions set forth in this Performance Restricted Stock Unit Award Agreement (the “Agreement”), which Agreement includes the “Terms and Conditions of PSU Agreement” attached hereto as Schedule A (including the attached exhibit).