Exhibit 21.1
SUBSIDIARIES OF TRINSEO PLC
JANUARY 31, 2022
ENTITY NAME | JURISDICTION |
Trinseo Belgium B.V. | Belgium |
Trinseo Canada ULC | Canada |
Trinseo Polymers (Zhangjiagang) Company Limited | China |
Altuglas International Denmark A/S | Denmark |
Trinseo Suomi Oy | Finland |
Altuglas International S.A.S. | France |
Trinseo France S.A.S. | France |
Trinseo Deutschland Anlagengesellschaft MbH | Germany |
Trinseo Deutschland GmbH | Germany |
Styron Hellas M. EPE | Greece |
Trinseo (Hong Kong) Limited | Hong Kong |
Trinseo Materials (Hong Kong) Limited | Hong Kong |
Trinseo India Trading Private Limited | India |
PT Trinseo Materials Indonesia | Indonesia |
Trinseo Finance Ireland Unlimited Company | Ireland |
Trinseo Ireland Holdings Limited | Ireland |
Trinseo Services Ireland Limited Company | Ireland |
A.P.I. Applicazioni Plastiche Industriali S.p.A. | Italy |
Altuglas S.R.L. | Italy |
Trinseo Italia S.R.L. | Italy |
Trinseo Japan Y.K. | Japan |
Trinseo Korea Ltd. | Korea |
Trinseo Finance Luxembourg S.à r.l. | Luxembourg |
Trinseo Holding S.à r.l. | Luxembourg |
Trinseo Luxco S.à r.l. | Luxembourg |
Trinseo Materials Operating S.C.A. | Luxembourg |
Altuglas Mexico, S.A. de C.V. | Mexico |
Trinseo de Mexico, S. de R.L. de C.V. | Mexico |
Trinseo Holding Asia Pte. Ltd. | Singapore |
Trinseo Singapore Pte. Ltd. | Singapore |
Trinseo Spain S.L. | Spain |
Trinseo Sverige AB | Sweden |
Trinseo Europe GmbH | Switzerland |
Trinseo Export GmbH | Switzerland |
Taiwan Trinseo Limited | Taiwan |
Heathland B.V. | The Netherlands |
Trinseo Holding B.V. | The Netherlands |
Trinseo Netherlands B.V. | The Netherlands |
Trinseo Kimya Ticaret Limited Şirketi | Turkey |
Trinseo UK Limited | United Kingdom |
Altuglas LLC | United States – Delaware |
Americas Styrenics LLC | United States – Delaware |
Trinseo LLC | United States – Delaware |
Trinseo Materials Finance, Inc. | United States – Delaware |
Trinseo U.S. Holding, Inc. | United States – Delaware |
Trinseo U.S. Receivables Company SPV LLC | United States – Delaware |
Aristech Surfaces LLC | United States – Kentucky |
1 Represents a joint venture company of which the registrant indirectly owns 50% of the voting equity.