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Exhibit 21.1

SUBSIDIARIES OF THE REGISTRANT

Registrant – SunCoke Energy, Inc.

The Registrant owns, directly or indirectly, 100% of the stock of the following subsidiaries as of December 31, 2025 (all of which are included in the consolidated financial statements) except as noted in the footnotes below.

Name						Jurisdiction
Ceredo Liquid Terminal, LLC						USA (Delaware)
CMT Liquids Terminal, LLC						USA (Delaware)
Cool Springs LLC						USA (Delaware)
Dismal River Terminal, LLC						USA (Delaware)
Elk River Minerals Corporation						USA (Delaware)
FF Farm Holdings LLC						USA (Delaware)
Flame Aggregator, LLC						USA (Delaware)
Gateway Energy & Coke Company, LLC						USA (Delaware)
Haverhill Coke Company LLC						USA (Delaware)
Indiana Harbor Coke Company						USA (Delaware)
Indiana Harbor Coke Company L.P.						USA (Delaware)
Indiana Harbor Coke Corporation						USA (Indiana)
Jewell Coal and Coke Company, Inc.						USA (Virginia)
Jewell Coke Acquisition Company						USA (Virginia)
Jewell Coke Company, L.P.						USA (Delaware)
Jewell Resources Corporation						USA (Virginia)
Jewell Smokeless Coal Corporation						USA (Virginia)
Kanawha River Terminals, LLC						USA (Delaware)
LOCAL RECYCLING CENTER SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ						Poland
Marigold Dock, Inc.						USA (Delaware)
Metal Services Investment LLC						USA (Delaware)
Metal Services LLC						USA (Delaware)
Middletown Coke Company, LLC						USA (Delaware)
Oakwood Red Ash Coal Corporation						USA (Virginia)
PHOENIX BRAZIL HOLDCO I B.V.						Netherlands
PHOENIX BRAZIL HOLDCO II B.V.						Netherlands
PHOENIX DO BRASIL, SERVICOS INDUSTRIAIS E SERVICOS SIDERURGICOS LTDA						Brazil
PHOENIX DO PECEM INDUSTRIA E SERVICOS SIDERURGICOS LTDA						Brazil
Phoenix Global Burns Harbor, LLC						USA (Delaware)
Phoenix Global Ghent LLC						USA (Delaware)
Phoenix Global Indiana Harbor East, LLC						USA (Delaware)
Phoenix Global Indiana Harbor West, LLC						USA (Delaware)
PHOENIX GLOBAL LEASING B.V.						Netherlands
Phoenix Global Leasing, LLC						USA (Delaware)
Phoenix Global Marion, LLC						USA (Delaware)

1 14.8% of Common Class B Limited Partnership units held by outside investor

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Exhibit 21.1

Phoenix Global Riverdale, LLC						USA (Delaware)
PHOENIX METAL SERVICES LLC						United Arab Emirates
PHOENIX SERVICES EUROPE COÖPERATIEF U.A.						Netherlands
PHOENIX SERVICES FINLAND OY						Finland
PHOENIX SERVICES FRANCE						France
PHOENIX SERVICES FRANCE ACQUISITION CORP						France
PHOENIX SERVICES POLSKA SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ						Poland
PHOENIX SERVICES SLOVENSKO S.R.O.						Slovakia
PHOENIX SERVICIOS INDUSTRIALES Y MEDIOAMBIENTALES SL						Spain
PHOENIX SLAG SERVICES OF SOUTH AFRICA (PTY) LTD						South Africa
PHOENIX STEEL MILL SERVICES (INDIA) PRIVATE LIMITED						India
Raven Energy LLC						USA (Delaware)
SOCIETE EUROPEENNE DE PRESTATIONS INDUSTRIELLES S.E.P.I						France
SOTRASI LOGISTIQUE ET SERVICES						France
Sun Coal & Coke LLC						USA (Delaware)
SUN COKE EAST SERVICOS DE COQUEIFICACAO LTDA.						Brazil
Sun Coke International, Inc.						USA (Delaware)
SunCoke Energy South Shore LLC						USA (Delaware)
SunCoke Energy, Inc.						USA (Delaware)
SunCoke GPI LLC						USA (Delaware)
SunCoke Lake Terminal LLC						USA (Delaware)
SunCoke Logistics LLC						USA (Delaware)
SunCoke Technology and Development LLC						USA (Delaware)
SXC HOLDING B.V.						Netherlands
The Claymont Investment Company LLC						USA (Delaware)