<SEC-DOCUMENT>0001104659-26-065729-index.html : 20260522
<SEC-HEADER>0001104659-26-065729.hdr.sgml : 20260522
<ACCEPTANCE-DATETIME>20260522161529
ACCESSION NUMBER:		0001104659-26-065729
CONFORMED SUBMISSION TYPE:	SD
PUBLIC DOCUMENT COUNT:		2
<RULE>
<RULE-NAME>13p-1
<ITEM>
<ITEM-NUMBER>1.01
<ITEM-PERIOD>20251231
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FILED AS OF DATE:		20260522
DATE AS OF CHANGE:		20260522

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Trinseo PLC
		CENTRAL INDEX KEY:			0001519061
		STANDARD INDUSTRIAL CLASSIFICATION:	PLASTICS, MATERIALS, SYNTH RESINS & NONVULCAN ELASTOMERS [2821]
		ORGANIZATION NAME:           	08 Industrial Applications and Services
		EIN:				000000000
		STATE OF INCORPORATION:			L2
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SD
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36473
		FILM NUMBER:		261014003

	BUSINESS ADDRESS:	
		STREET 1:		440 EAST SWEDESFORD ROAD
		STREET 2:		SUITE 301
		CITY:			WAYNE
		STATE:			PA
		ZIP:			19087
		BUSINESS PHONE:		610-240-3200

	MAIL ADDRESS:	
		STREET 1:		440 EAST SWEDESFORD ROAD
		STREET 2:		SUITE 301
		CITY:			WAYNE
		STATE:			PA
		ZIP:			19087

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Trinseo S.A.
		DATE OF NAME CHANGE:	20110429

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Bain Capital Everest (Luxco 2) S.a r.l.
		DATE OF NAME CHANGE:	20110426
</SEC-HEADER>
<DOCUMENT>
<TYPE>SD
<SEQUENCE>1
<FILENAME>tse-20260522xsd.htm
<DESCRIPTION>SD
<TEXT>
Document 1 - file: tse-20260522xsd.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-1
<SEQUENCE>2
<FILENAME>tse-20260522xex1.htm
<DESCRIPTION>EX-1
<TEXT>
Document 2 - file: tse-20260522xex1.htm

</DOCUMENT>
</SEC-DOCUMENT>