SunCoke Energy Inc. Watch

from 8-K 99 pages Agreement and Plan of Merger Among Sun Coal & Coke LLC, Metal Services Acquisition, LLC Flame Aggregator, LLC and Shareholder Representative Services LLC, as the Unitholder Representative Dated as of May 27, 2025

from 10-K 2 pages Sun Coal & Coke LLC Delaware •indiana Harbor Coke Corporation Indiana § Indiana Harbor Coke Company L.P. 84.2 % Delaware •indiana Harbor Coke Company Delaware § Indiana Harbor Coke Company L.P. 1.0 % Jewell Resources Corporation Virginia • Jewell Coke Company, L.P. 98 % Virginia • Jewell Smokeless Coal Corporation Virginia • Jewell Coal & Coke Company, Inc. Virginia • Dismal River Terminal, LLC Virginia • Oakwood Red Ash Coal Corporation Virginia Note: First-Tier Subsidiaries of SunCoke Energy, Inc. [NYSE: SXC] Appear in Bolded Type. Page 2 of 2

from 8-K 58 pages Agreement and Plan of Merger Dated as of February 4, 2019 by and Among Suncoke Energy, Inc., Sc Energy Acquisition LLC, SunCoke Energy Partners, L.P., and SunCoke Energy Partners GP LLC

from 425 58 pages Agreement and Plan of Merger Dated as of February 4, 2019 by and Among Suncoke Energy, Inc., Sc Energy Acquisition LLC, SunCoke Energy Partners, L.P., and SunCoke Energy Partners GP LLC

from 8-K 70 pages Contribution Agreement by and Among Raven Energy Holdings LLC, and SunCoke Energy Partners, L.P. Dated July 20, 2015

from 8-K 42 pages Contribution Agreement by and Among Sun Coal & Coke LLC SunCoke Energy Partners, L.P. and SunCoke Energy Inc. and Agreed to for Purposes of Section 2.9 Hereof by Gateway Energy & Coke Company, LLC Dated January 12, 2015