0001415889-24-006862.txt : 20240305 0001415889-24-006862.hdr.sgml : 20240305 20240305184014 ACCESSION NUMBER: 0001415889-24-006862 CONFORMED SUBMISSION TYPE: 3 PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20240301 FILED AS OF DATE: 20240305 DATE AS OF CHANGE: 20240305 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Yang Arthas Bing CENTRAL INDEX KEY: 0002011504 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 3 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36473 FILM NUMBER: 24723256 MAIL ADDRESS: STREET 1: C/O TRINSEO PLC STREET 2: 440 EAST SWEDESFORD ROAD, SUITE 301 CITY: WAYNE STATE: PA ZIP: 19087 ISSUER: 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 IRS NUMBER: 000000000 STATE OF INCORPORATION: L2 FISCAL YEAR END: 1231 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 3 1 form3-03052024_110303.xml X0206 3 2024-03-01 0 0001519061 Trinseo PLC TSE 0002011504 Yang Arthas Bing C/O TRINSEO PLC 440 EAST SWEDESFORD ROAD, SUITE 301 WAYNE PA 19087 false true false false SVP, Latex Binders Ordinary Shares 25752 D Options to Purchase Ordinary Shares 24.08 2032-02-22 Ordinary Shares 2142 D Represents 2,254 ordinary shares issuable pursuant to RSU awards which will vest on February 22, 2026 and 23,498 ordinary shares issuable pursuant to RSU awards which will vest in three equal annual installments beginning on February 21, 2025. The option vests in three equal annual installments beginning on February 22, 2024. /s/ Angelo Chaclas, Attorney-in-Fact 2024-03-01 EX-24 2 ex24-03052024_110303.htm

POWER OF ATTORNEY

The undersigned hereby constitutes and appoints Angelo Chaclas, Erik Johnson, Darren Davideit, June Sutton with full power of substitution, as the undersigned's true and lawful attorney-in fact to:

(1)

prepare, execute in the undersigned's name and on the undersigned's behalf, and submit to the U.S. Securities and Exchange Commission (the "SEC") the Uniform Application for Access Codes to File on EDGAR ("Form ID"), including amendments thereto, and any other documents necessary or appropriate to obtain codes and passwords enabling the undersigned to make electronic filings with the SEC of reports required by Section 16(a) of the Securities Exchange Act of 1934 or any rule or regulation of the SEC, to receive on behalf of the undersigned any notice given to the undersigned in connection with the Form ID, and to take all other actions necessary to successfully achieve the aforesaid purposes;

(2)

execute for and on behalf of the undersigned, in the undersigned's capacity as officer and/or director of Trinseo PLC (the "Company"), Forms 3, 4, and 5 in accordance with Section 16(a) of the Securities Exchange Act of 1934 and the rules thereunder;

(3)

do and perform any and all acts for and on behalf of the undersigned that may be necessary or desirable to complete and execute any such Form 3, 4, or 5, complete and execute any amendment or amendments thereto, and timely file such form with the SEC and any stock exchange or similar authority; and

(4)

take any other action of any type whatsoever in connection with the foregoing that, in the opinion of such attorney-in-fact, may be of benefit to, in the best interest of, or legally required by, the undersigned, it being understood that the documents executed by such attorney-in-fact on behalf of the undersigned pursuant to this Power of Attorney shall be in such form and shall contain such terms and conditions as such attorney-in fact may approve in such attorney-in-fact's discretion.

The undersigned hereby grants to such attorney-in-fact full power and authority to do and perform any and every act and thing whatsoever requisite, necessary, or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-fact's substitute or substitutes, shall lawfully do or cause to be done by virtue of this power of attorney and the rights and powers herein granted. The undersigned acknowledges that the foregoing attorneys-in-fact, in serving in such capacity at the request of the undersigned, are not assuming, nor is the Company assuming, any of the undersigned's responsibilities to comply with Section 16 of the Securities Exchange Act of 1934.

This Power of Attorney shall remain in full force and effect until the undersigned is no longer required to file Forms 3, 4, and 5 with respect to the undersigned's holdings of and transactions in securities issued by the Company, unless earlier revoked by the undersigned in a signed writing delivered to the foregoing attorney-in-fact.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of February 16, 2024.

/s/ Arthas Bing Yang
Name:	Arthas Bing Yang