Document

Exhibit 21.1

List of Subsidiaries of Celanese Corporation

(As of December 31, 2024)


Name of Company						Jurisdiction
Aggregate Ownership of more than 70% (100% aggregate ownership unless otherwise indicated)
Acetate (Malta) Company Limited						Malta
Acetate Belgium Holdings B.V.						Netherlands
Acetate Belgium Holdings LLC						Delaware
Acetate Europe Coöperatief U.A.						Netherlands
Acetate Holdings LLC						Delaware
Acetate Intermediate Holdings LLC						Delaware
Acetate International LLC						Delaware
Acetate Hong Kong Holdings LLC						Delaware
Acetate Luxembourg S.à r.l.						Luxembourg
Acetate Sales U.S. Ltd.						Texas
Acetate UTP Holdings LLC						Delaware
Acetex Chimie S.A.S.						France
Advanced Elastomer Systems Limited						United Kingdom
CdwllMex S. de R.L. de C.V.						Mexico
CE Mexico Holdings LLC						Delaware
CE Receivables LLC						Delaware
Celanese (Bermuda) EM/AC GP Limited						Bermuda
Celanese (Bermuda) Holdings 2 LP						Bermuda
Celanese (Bermuda) Holdings GP Limited						Bermuda
Celanese (Bermuda) JV Holdings II GP Limited						Bermuda
Celanese (Bermuda) JV Holdings II L.P.						Bermuda
Celanese (Bermuda) Manufacturing Holdings Limited						Bermuda
Celanese (Bermuda) Mercury GP Limited						Bermuda
Celanese (China) Holding Co., Ltd.						China
Celanese (Germany) Infraserv Holdings I GmbH						Germany
Celanese (Germany) Infraserv Holdings 2 GmbH						Germany
Celanese (Malta) 2 Partnership						Germany
Celanese (Malta) Acetyls Holding Limited						Germany
Celanese (Malta) Company Limited						Malta
Celanese (Malta) EM Holdings Limited						Malta
Celanese (Malta) EUR FinCo Limited						Malta
Celanese (Malta) Finance Holdings Limited						Malta
Celanese (Malta) Finance Holdings 2 Limited						Malta
Celanese (Malta) JPY FinCo Limited						Malta
Celanese (Malta) Partnership						Malta
Celanese (Nanjing) Business Management Co. Ltd.						China
Celanese (Nanjing) Chemical Co., Ltd.						China
Celanese (Shanghai) Chemical Trading Co., Ltd.						China
Celanese (Shanghai) Electronic Materials Co., Ltd.						China
Celanese (Shanghai) International Trading Co., Ltd.						China
Celanese (Shanghai) Polymers Co., Ltd.						China
Celanese (Shenzhen) Engineered Materials Co., Ltd.						China
Celanese (Shenzhen) New Materials Co., Ltd.						China
Celanese (Shenzhen) Performance Materials Co., Ltd.						China
Celanese (Suzhou) Engineering Plastics Co., Ltd.						China


Celanese (Switzerland) Acetyls Holdings Sàrl						Switzerland
Celanese (Switzerland) AT Holdings Sàrl						Switzerland
Celanese (Switzerland) Holdings Sàrl						Switzerland
Celanese (Switzerland) IP Holdings 2 Sàrl						Switzerland
Celanese (Switzerland) IP Holdings Sàrl						Switzerland
Celanese (Switzerland) IPCo Sàrl						Switzerland
Celanese (Thailand) Limited						Thailand
Celanese Acetate C.V.						Netherlands
Celanese Acetate LLC						Delaware
Celanese Acetate Holdings LLC						Delaware
Celanese Acetyls IP Germany GmbH						Germany
Celanese Americas LLC						Delaware
Celanese Beteiligungs GmbH						Germany
Celanese BV						Belgium
Celanese Canada Holdings Limited						United Kingdom
Celanese Canada ULC						Canada
Celanese Chemicals, Inc.						Delaware
Celanese Chemicals India Private Limited						India
Celanese Chemicals S.A. (Pty) Ltd.						South Africa
Celanese China Holdings LLC						Delaware
Celanese Comercial S. de R.L. de C.V.						Mexico
Celanese Deutschland Holding GmbH						Germany
Celanese Electronic Materials Hong Kong Limited						Hong Kong
Celanese Electronic Materials Kabushiki Kaisha						Japan
Celanese Electronic Materials UK Limited						United Kingdom
Celanese Emulsions Limited						United Kingdom
Celanese Emulsions Pension Plan Trustees Limited						United Kingdom
Celanese Europe B.V.						Netherlands
Celanese EVA Performance Polymers LLC						Delaware
Celanese Europe Holdings LLC						Delaware
Celanese Far East Limited						Hong Kong
Celanese Finance Company Limited						Hong Kong
Celanese Finance Holdings 2 Limited						Jersey
Celanese Foreign Holdings UK Limited						United Kingdom
Celanese France Holdings S.à r.l.						Luxembourg
Celanese Global Relocation LLC						Delaware
Celanese Holding 1, S. de R.L. de C.V.						Mexico
Celanese Holding Company Limited						Hong Kong
Celanese Holdings (Malta) Limited						Malta
Celanese Holdings Germany One GmbH						Germany
Celanese Holdings Germany Two GmbH						Germany
Celanese Holdings UK 1 Limited						United Kingdom
Celanese Holdings UK 2 Limited						United Kingdom
Celanese Holdings UK 3 Limited						United Kingdom
Celanese Hong Kong Holdings 1 LLC						Delaware
Celanese Hong Kong Holdings LLC						Delaware
Celanese Hungary Kft.						Hungary
Celanese India Holdings B.V.						Netherlands


Celanese International Corporation						Delaware
Celanese IP Germany GmbH						Germany
Celanese IP Hungary Bt.						Hungary
Celanese ISH Holdings LLC						Delaware
Celanese Japan Limited						Japan
Celanese Kabushiki Kaisha						Japan/Delaware
Celanese Korea Ltd.						Korea
Celanese Ltd.						Texas
Celanese Materials India Limited						India
Celanese Materials Korea Inc.						Korea
Celanese Materials México S. de R.L. de C.V.						Mexico
Celanese Mediterranean Holdings LLC						Delaware
Celanese Mercury Holdings Inc.						Delaware
Celanese Mercury Holdings UK Limited						United Kingdom
Celanese Mercury Property Germany GmbH						Germany
Celanese Mexico Holdings LLC						Delaware
Celanese Microcircuits Industries, Ltd.						Bermuda
Celanese Operations México S. de R.L. de C.V.						Mexico
Celanese Performance Solutions Belgium BV						Belgium
Celanese Performance Solutions Company Limited						Taiwan
Celanese Performance Solutions Germany GmbH						Germany
Celanese Performance Solutions Singapore Pte. Ltd.						Singapore
Celanese Performance Solutions Switzerland Sàrl						Switzerland
Celanese Polymer Products (Thailand) Company Limited						Thailand
Celanese Polymer Products Canada Company						Canada
Celanese Polymer Products Canada Holdings Inc.						Canada
Celanese Polymer Products Netherlands B.V.						Netherlands
Celanese Polymer Products UK Ltd.						United Kingdom
Celanese Polymer Products, LLC						Delaware
Celanese Polymers Holding, Inc.						Delaware
Celanese Production Belgium BV						Belgium
Celanese Production Germany GmbH & Co. KG						Germany
Celanese Production Italy S.r.l.						Italy
Celanese Production Netherlands B.V.						Netherlands
Celanese Production Sweden AB						Sweden
Celanese Production Switzerland AG						Switzerland
Celanese Production UK Limited						United Kingdom
Celanese Property Germany GmbH & Co. KG						Germany
Celanese Property Holding Germany GmbH						Germany
Celanese PTE. LTD.						Singapore
Celanese S.A.						Argentina
Celanese Sales Austria GmbH						Austria
Celanese Sales Czech Republic s.r.o.						Czech Republic
Celanese Sales France S.A.S.						France
Celanese Sales Germany GmbH						Germany
Celanese Sales Ibérica, S.L.U.						Spain
Celanese Sales Italy S.r.l.						Italy
Celanese Sales Netherlands B.V.						Netherlands


Celanese Sales UK Limited						United Kingdom
Celanese Sales U.S. Ltd.						Texas
Celanese Services Belgium BV						Belgium
Celanese Services Germany GmbH						Germany
Celanese Services Italy S.r.l.						Italy
Celanese Services Singapore Pte. Ltd.						Singapore
Celanese Services UK Limited						United Kingdom
Celanese Shanghai Holdings LLC						Delaware
Celanese Singapore Acetyls Holding PTE. LTD.						Singapore
Celanese Singapore Chemical Holding PTE. LTD.						Singapore
Celanese Singapore Emulsions PTE. LTD.						Singapore
Celanese Singapore PTE. LTD.						Singapore
Celanese Singapore VAM PTE. LTD.						Singapore
Celanese Specialty Products, Inc.						Delaware
Celanese Specialty Products Austria GmbH						Austria
Celanese Switzerland AG						Switzerland
Celanese Turkey Performans Çözümleri Limited Şirketi						Turkey
Celanese Uentrop GmbH						Germany
Celanese US Holdings LLC						Delaware
Celanese US IPCo, Inc.						Delaware
Celanese Ventas Mexico S. de R.L. de C.V.						Mexico
Celanese Worldwide Holdings 2 LLC						Delaware
Celanese Worldwide Holdings 3 Corporation						Delaware
Celanese Worldwide Holdings 4 LLC						Delaware
Celanese Worldwide Holdings 5 LLC						Delaware
Celanese Worldwide Holdings LLC						Delaware
Celtran, Inc.						Delaware
Celwood Insurance Company						Vermont
CELX Investments S.à r.l.						Luxembourg
CEMX Holdings LLC						Delaware
CNA Holdings LLC						Delaware
Elwood Limited						Bermuda
FKAT LLC						Delaware
Grupo Celanese, S. de R.L. de C.V.						Mexico
Holding Softer America S. de R.L. de C.V						Mexico
Infraserv Verwaltungs GmbH						Germany
KEP Americas Engineering Plastics, LLC						Delaware
Performance Solutions do Brasil Comércio de Polímeros Ltda						Brazil
Performance Solutions Holding, Inc.						Delaware
Performance Solutions Hong Kong Company Limited						Hong Kong
Performance Solutions Japan Kabushiki Kaisha						Japan
Performance Solutions Luxembourg S.à r.l.						Luxembourg
Performance Specialty Products (India) Private Limited						India
Performance Specialty Products Argentina S.A.U.						Argentina
Performance Specialty Products Sverige AB						Sweden
PM China, Inc.						Delaware
Polymer Products France SAS						France
Polymer Products Italy S.r.l.						Italy


Polymer Solutions Ibérica S.L.U.						Spain
Polymers & Resins de México S. de R.L. de C.V.						Mexico
PP EMEA Holding 1 B.V.						Netherlands
PT Celanese Indonesia Operations						Indonesia
PT Celanese Indonesia Services						Indonesia
RIOMAVA GmbH						Germany
Santoprene Production Pensacola LLC						Delaware
Servicios Corporativos Celanese S. de R.L. de C.V.						Mexico
SP Asia, LLC						Delaware
SP China, Inc.						Delaware
SP EMEA Holding 2 B.V.						Netherlands
SP India Holding 1 B.V.						Netherlands
SP International Holding 1 B.V.						Netherlands
Specialty Products Czech Republic s.r.o.						Czech Republic
Specialty Products Hungary Kft.						Hungary
Specialty Products Poland sp. z.o.o.						Poland
T&I NL Holding B.V.						Netherlands
Tenedora Tercera de Toluca S. de R.L. de C.V.						Mexico
Ticona Fortron Inc.						Delaware
Ticona LLC						Delaware
Ticona Polymers, Inc.						Delaware
Ticona Polymers Ltda.						Brazil
UM Umweltmanagement GmbH & Co. KG						Germany
UM Umweltmanagement Verwaltungs GMBH						Germany

Aggregate Ownership of 70% or less
Celanese Filaments-Americas, LLC1						Delaware
Celanese Filaments-Europe, B.V.1						Netherlands
Celanese Xingda Filaments Company Limited1						China
Ceramer GmbH2						Germany
CTE Petrochemicals Co.3						Cayman Islands
DuBay Polymer GmbH3						Germany
DuPont Teijin Hongji Films Ningbo Co. Ltd.4						China
Fairway Methanol LLC3						Delaware
Fortron (Shanghai) International Trading Co. Ltd.3						China
Fortron Industries, LLC3						North Carolina
Fortron China Holdings LLC3						Delaware
InfraServ GmbH & Co. Gendorf KG5						Germany
Infraserv GmbH & Co. Höchst KG6						Germany
InfraServ GmbH & Co. Wiesbaden KG7						Germany
Korea Engineering Plastics Co., Ltd.3						Korea
Kunming Cellulose Fibers Company, Limited8						China
Mylar Hongji Films Foshan Co. Ltd.4						China
Mylar Specialty Films China Limited9						China
Mylar Specialty Films Incorporated3						Delaware
Mylar Specialty Films Luxembourg S.A.3						Luxembourg
Mylar Specialty Films Netherlands B.V.3						Netherlands
Mylar Specialty Films UK Limited3						United Kingdom


Mylar Specialty Films U.S. Limited Partnership10						Delaware
National Methanol Company11						Saudi Arabia
Nantong Cellulose Fibers Company, Limited12						China
Nutrinova Germany GmbH8						Germany
Nutrinova Holdings GmbH8						Germany
Nutrinova Netherlands B.V.8						Netherlands
Nutrinova US LLC8						Delaware
Toray Celanese Co. Ltd.3						Japan
Yncoris GmbH & Co. KG13						Germany
Zhuhai Cellulose Fibers Company, Limited8						China


1			Aggregate ownership is 70.00%

2			Aggregate ownership is 40.00%

3			Aggregate ownership is 50.00%

4			Aggregate ownership is 26.01%

5			Aggregate ownership is 29.90%

6			Aggregate ownership is 31.20%

7			Aggregate ownership is 7.90%

8			Aggregate ownership is 30.00%

9			Aggregate ownership is 51.00%

10			Aggregate ownership is 49.93%

11			Aggregate ownership is 25.00%

12			Aggregate ownership is 30.68%

13			Aggregate ownership is 21.90%