0001558370-22-001688 Sample Contracts

Trinseo PLC Amended & Restated 2014 Omnibus Incentive Plan Restricted Stock Unit Agreement

Restricted Stock Unit Agreement • February 23rd, 2022 • Trinseo PLC • Plastic materials, synth resins & nonvulcan elastomers

• Contract Type
  Restricted Stock Unit Agreement
• Filed
  February 23rd, 2022
• Company
  Trinseo PLC
• Industry
  Plastic materials, synth resins & nonvulcan elastomers

This agreement (this “Agreement”) evidences an award (the “Award”) of restricted stock units (the “Restricted Stock Units”) granted by Trinseo PLC (the “Company”) to the undersigned (the “Grantee”) pursuant to the Trinseo PLC Amended and Restated 2014 Omnibus Incentive Plan (as amended from time to time, the “Plan”), which is incorporated herein by reference.

TRINSEO S.A. Amended & Restated 2014 Omnibus Incentive Plan Performance Award Stock Unit Agreement

Performance Award Stock Unit Agreement • February 23rd, 2022 • Trinseo PLC • Plastic materials, synth resins & nonvulcan elastomers

• Contract Type
  Performance Award Stock Unit Agreement
• Filed
  February 23rd, 2022
• Company
  Trinseo PLC
• Industry
  Plastic materials, synth resins & nonvulcan elastomers

This agreement (this “Agreement”) evidences an award (the “Award”) of restricted stock units subject to performance conditions (hereinafter referred to as Performance Award Stock Units or “PSUs”) granted by Trinseo S.A. (the “Company”) to the undersigned (the “Grantee”) pursuant to the Trinseo S.A. Amended & Restated 2014 Omnibus Incentive Plan (as amended from time to time, the “Plan”), which is incorporated herein by reference.

TRINSEO PLC Amended & Restated 2014 Omnibus Incentive Plan Non-Statutory Stock Option Agreement

Non-Statutory Stock Option Agreement • February 23rd, 2022 • Trinseo PLC • Plastic materials, synth resins & nonvulcan elastomers

• Contract Type
  Non-Statutory Stock Option Agreement
• Filed
  February 23rd, 2022
• Company
  Trinseo PLC
• Industry
  Plastic materials, synth resins & nonvulcan elastomers

This agreement (this “Agreement”) evidences an award (the “Award”) of a stock option (the “Stock Option”) granted by Trinseo PLC (the “Company”) to the undersigned (the “Optionee”) pursuant to and subject to the terms of the Trinseo PLC Amended and Restated 2014 Omnibus Incentive Plan (as amended from time to time, the “Plan”).