Exhibit 21.1

List of Subsidiaries of Celanese Corporation

(As of December 31, 2017)

Name of Company	Jurisdiction
Aggregate Ownership of more than 50% (100% aggregate ownership unless otherwise indicated)
Acetate C.V.	Netherlands
Acetate Europe Coöperatief U.A.	Netherlands
Acetate Holdings LLC	Delaware
Acetate Holdings Luxembourg S.à r.l.	Luxembourg
Acetate Intermediate Holdings LLC	Delaware
Acetate International LLC	Delaware
Acetate LTP GP Netherlands LLC	Delaware
Acetate LTP LiabilityCo LLC	Delaware
Acetate LTP Limited Partner Netherlands LLC	Delaware
Acetate Luxembourg S.à r.l.	Luxembourg
Acetate Netherlands Holdings LLC	Delaware
Acetate PledgeCo LLC	Delaware
Acetate Sales U.S. Ltd.	Texas
Acetate US Holdings LLC	Delaware
Acetate UTP Holdings LLC	Delaware
Acetex Chimie S.A.S.	France
Acetex (Cyprus) Ltd.	Cyprus
Alberta Ag - Industries Ltd.	Canada
Cadwell Limited	Cayman Islands
CCC Environmental Management and Solutions GmbH & Co. KG	Germany
CCC Environmental Management and Solutions Verwaltungs-GmbH	Germany
CE Europe Holdings LLC	Delaware
CE Mexico Holdings LLC	Delaware
CE Receivables LLC	Delaware
Celanese (China) Holding Co., Ltd.	China
Celanese (Nanjing) Acetyl Derivatives Co., Ltd.	China
Celanese (Nanjing) Acetyl Intermediates Co., Ltd.	China
Celanese (Nanjing) Chemical Co., Ltd.	China
Celanese (Nanjing) Diversified Chemical Co., Ltd.	China
Celanese (Shanghai) International Trading Co., Ltd.	China
Celanese (Suzhou) Engineering Plastics Co., Ltd.	China
Celanese Acetate C.V.	Netherlands
Celanese Acetate LLC	Delaware
Celanese Alpine S.à r.l. & Co. KG	Germany
Celanese Americas LLC	Delaware
Celanese BVBA	Belgium
Celanese Canada ULC	Canada
Celanese Chemicals, Inc.	Delaware
Celanese Chemicals India Private Limited	India
Celanese Chemicals S.A. (Pty) Ltd.	South Africa
Celanese Comercial S. de R.L. de C.V.	Mexico
Celanese C.V.	Netherlands
Celanese Deutschland Holding GmbH	Germany
Celanese do Brasil Ltda.	Brazil

Celanese Emulsions Ltd.	United Kingdom
Celanese Emulsions Pension Plan Trustees Limited	United Kingdom
Celanese Europe B.V.	Netherlands
Celanese EVA Performance Polymers LLC	Delaware
Celanese EVA Performance Polymers Partnership	Canada
Celanese Far East Limited	Hong Kong
Celanese France Holdings S.à r.l.	Luxembourg
Celanese Global Relocation LLC	Delaware
Celanese Holdings B.V.	Netherlands
Celanese Holdings Luxembourg S.à r.l.	Luxembourg
Celanese Hungary Kft.	Hungary
Celanese Iberica Holdings S.à r.l.	Luxembourg
Celanese International Corporation	Delaware
Celanese International Holdings Luxembourg S.à r.l.	Luxembourg
Celanese IP Germany GmbH	Germany
Celanese IP Hungary Bt.	Hungary
Celanese Japan Limited	Japan
Celanese Korea Ltd.	Korea
Celanese Ltd.	Texas
Celanese Materials Mexico S. de R.L. de C.V.	Mexico
Celanese Mexico Holdings LLC	Delaware
Celanese Operations Mexico S. de R.L. de C.V.	Mexico
Celanese Netherlands Holdings C.V.	Netherlands
Celanese Production Belgium BVBA	Belgium
Celanese Production Germany GmbH & Co. KG	Germany
Celanese Production Netherlands B.V.	Netherlands
Celanese Production Sweden AB	Sweden
Celanese Production UK Limited	United Kingdom
Celanese Property Germany GmbH & Co. KG	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.	Spain
Celanese Sales Italy S.r.l.	Italy
Celanese Sales Netherlands B.V.	Netherlands
Celanese Sales Rus gAG	Russia
Celanese Sales UK Limited	United Kingdom
Celanese Sales U.S. Ltd.	Texas
Celanese Services Germany GmbH	Germany
Celanese Services UK Limited	United Kingdom
Celanese Singapore Acetyls Holding PTE. LTD.	Singapore
Celanese Singapore Acetyls Investment PTE. LTD.	Singapore
Celanese Singapore Chemical Holding PTE. LTD.	Singapore
Celanese Singapore Holdings S.à r.l.	Luxembourg
Celanese Singapore Investment PTE. LTD.	Singapore
Celanese Singapore PTE. LTD.	Singapore
Celanese Singapore VAM PTE. LTD.	Singapore

Celanese Singapore Emulsions PTE. LTD.	Singapore
Celanese (Thailand) Limited	Thailand
Celanese US Holdings LLC	Delaware
Celanese Ventas Mexico S. de R.L. de C.V.	Mexico
Celtran, Inc.	Delaware
Celwood Insurance Company	Vermont
CELX Investments S.à r.l.	Luxembourg
CEMX Holdings LLC	Delaware
CNA Holdings LLC	Delaware
Elwood C.V.	Netherlands
Elwood Limited	Bermuda
FKAT LLC	Delaware
Grupo Celanese, S. de R.L. de C.V.	Mexico
Holding Softer America S.A. de C.V	Mexico
HNA Acquisition ULC	Canada
Infraserv Verwaltungs GmbH	Germany
KEP Americas Engineering Plastics, LLC	Delaware
KEP Europe GmbH	Germany
Lower Tier Partnership Netherlands C.V.	Netherlands
Nutrinova France S.à r.l†	France
Polymia S.r.l.	Italy
Pozzi Plast S.r.l.	Italy
PT Celanese Indonesia Operations	Indonesia
Results Based Sustainability, LLC	Georgia
RIOMAVA GmbH	Germany
Servicios Acetato Mexico S. de R.L. de C.V.	Mexico
Servicios Corporativos Celanese S. de R.L. de C.V.	Mexico
So.F.teR Brasil Compostos Termoplasticos Ltda.	Brazil
So.F.teR Deutschland GmbH	Germany
So.F.teR. Holding USA, Inc.	Delaware
So.F.teR. S.r.l.	Italy
So.F.teR. US, Inc.	Delaware
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
Aggregate Ownership of 50% or less
CTE Petrochemicals Co.1	Cayman Islands
Fairway Methanol LLC1	Delaware
Fortron Industries, LLC1	North Carolina
InfraServ GmbH & Co. Gendorf KG2	Germany
Infraserv GmbH & Co. Hoechst KG3	Germany
InfraServ GmbH & Co. Knapsack KG4	Germany
InfraServ GmbH & Co. Wiesbaden KG5	Germany
Korea Engineering Plastics Co., Ltd.1	Korea
Kunming Cellulose Fibers Company, Limited6	China
National Methanol Company7	Saudi Arabia
Nantong Cellulose Fibers Company, Limited8	China

Polyplastics Company, Ltd.9	Japan
Zhuhai Cellulose Fibers Company, Limited6	China

1	Aggregate ownership is 50.00%
2	Aggregate ownership is 39.00%
3	Aggregate ownership is 32.43%
4	Aggregate ownership is 27.00%
5	Aggregate ownership is 7.90%
6	Aggregate ownership is 30.00%
7	Aggregate ownership is 25.00%
8	Aggregate ownership is 30.68%
9	Aggregate ownership is 45.00%
†	In liquidation