WARRIOR MET COAL INC

Rule 10b5-1 Trading Plans

From time to time, members of the Company's Board of Directors and officers of the Company may enter into Rule 10b5-1 trading plans, which allow for the purchase or sale of common stock under pre-established terms at times when directors and officers might otherwise be prevented from trading under insider trading laws or because of self-imposed blackout periods. Such trading plans are intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) under the Exchange Act and comply with the Company's insider trading policy. Other than as described below, during the three months ended March 31, 2024, none of the Company’s directors or officers adopted or terminated a “Rule 10b5-1 trading arrangement” or a “non-Rule 10b5-1 trading arrangement,” as each term is defined in Item 408 of Regulation S-K.

On February 26, 2024, Jack K. Richardson, Chief Operating Officer of the Company, adopted a Rule 10b5-1 trading plan intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) under the Exchange Act (a "Rule 10b5-1 Plan"). Mr. Richardson's plan, which provides for the potential sale of up to 117,005 shares of the Company's common stock, terminates upon the earlier of December 31, 2025 or the date all shares subject to the plan have been sold. In addition, on February 27, 2024, Mr. Richardson terminated the previous Rule 10b5-1 Plan entered into on November 7, 2023, which provided for the potential sale of up to 88,000 shares of the Company's common stock.