Material Agreement, Financial Obligation (Form 8-K)

Amendment to Revolving Credit Facility

On July 25, 2025, SunCoke Energy, Inc. (the "Company") amended its existing revolving credit facility, which is agented by Bank of America, N.A. (as so amended, the "new revolving credit facility"). The new revolving credit facility, among other things: (i) extends the maturity of the revolving credit facility to July 2030 (subject to a springing maturity tied to the Company's 2021 senior notes) and (ii) decreases the revolving credit commitments thereunder to $325 million. The new revolving credit facility is secured by liens on substantially all of the assets of the Company and the subsidiary guarantors.

The covenants in the new revolving credit facility, among other things, limit the ability of the Company and its restricted subsidiaries to: (i) incur indebtedness, (ii) pay dividends or make other distributions, (iii) prepay, redeem or repurchase certain debt, (iv) make loans and investments, (v) sell assets, (vi) incur liens, (vii) enter into transactions with affiliates and (viii) consolidate or merge.

The foregoing description of the new revolving credit facility does not purport to be complete and is qualified in its entirety by the full text of the fourth amendment, a copy of which is filed as Exhibit 4.1 to this Current Report on Form 8-Kand incorporated herein by reference.

The information set forth in Item 1.01 of this Current Report on Form 8-Kis incorporated by reference in this Item 2.03.