PROPOSAL 3 — RATIFICATION OF APPOINTMENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM Our Board recommends a vote FOR Proposal 3 to ratify the Audit Committee’s appointment of EY as our independent registered public accounting firm for 2019. Independent Registered Public Accountant Services and Related Fee Arrangements Report of the Audit Committee The Audit Committee of the Board of Directors Director Independence Lead Director Board Leadership Structure Board’s Oversight of Risk Code of Ethics, Code of Conduct and Corporate Governance Guidelines Communication with Board Board and Committees Board Attendance Board Committees AAudit Committee – Primary Responsibilities and Requirements MEETINGS IN 2018: 9 Compensation Committee – Primary Responsibilities and Requirements MEETINGS IN 2018: 5 MEMBERS: Nominating and Governance Committee – Primary Responsibilities and Requirements MEETINGS IN 2018: 4 Environmental, Health and Safety Committee – Primary Responsibilities and Requirements MEETINGS IN 2018: 3 Board Refreshment 0% 20% 40% 60% 80% 100% 5 or fewer 6 to 10 More than 10 Years of Service NON-EMPLOYEE DIRECTOR COMPENSATION 2018 NON-EMPLOYEE DIRECTOR COMPENSATION Role Annual Cash Retainers 2018 Director Compensation Table Fees Earned or Paid in Cash Stock Awards Total (1) NON-EMPLOYEE DIRECTOR COMPENSATION Fees Earned or Paid in Cash (column (a)) Stock Awards (column (b)) Option Awards Outstanding and Fully-Vested Deferred Shares Number of Deferred Shares(1) Beneficial Ownership of Our Common Shares Owned(1) Right to Acquire Shares Total Beneficial Ownership Name and Address Shares % of Shares Stock Ownership Guidelines for Non-Employee Directors Section 16(a) Beneficial Ownership Reporting Compliance Executive Summary Name Title How Pay is Tied to Company Performance. Accounting Considerations Stock Ownership and Retention Guidelines Stock Ownership (in shares) Total Share Ownership as of 2/28/19 Timing with Respect to Equity Award Grants.

RAISE is a platform that enables Avient parents and caregivers to expand their social circle and connect with others who are also trying to balance work and family life. The template also facilitates the identification of new smelters and refiners to potentially undergo an audit via the RMI Conflict–Free Smelter program. This tool encourages investments in low-carbon & carbon-free technologies while increasing the visibility of, and encouraging accountability for, the impact of carbon emissions on the business.

RAISE is a platform that enables Avient parents and caregivers to expand their social circle and connect with others who are also trying to balance work and family life. The template also facilitates the identification of new smelters and refiners to potentially undergo an audit via the RMI Conflict–Free Smelter program. This tool encourages investments in low-carbon & carbon-free technologies while increasing the visibility of, and encouraging accountability for, the impact of carbon emissions on the business.

Additionally, they can also create a Coupa Supplier Portal (CSP) account if they want to take advantage of the benefits of working with their customers through the CSP. These steps include the following: “Create an invoice”, “Add Comment”, “Acknowledge PO”, or “Create Account” to create a CSP profile.

At no time shall Buyer serve as an agent of PolyOne, and Buyer has no authorization to enter into any contract or commitment in the name of or on the behalf of PolyOne nor to incur any expense to or on behalf of PolyOne’s account. The relationship of the parties comprises that of seller and purchaser, and no more, with the Buyer purchasing from PolyOne and reselling for its own account and risk. 2.

TEMPERATURE Material Rear Center Front Nozzle Melt Mold Nylon 6,6 540–570 530–560 530–560 540–570 540–570 200–300 (90–150) Nylon 6,6 30% SS 540–570 530–560 530–560 540–570 540–570 200–300 (90–150) PBT 510–410 (265–280) 490–540 (255–280) 480–530 480–530 480–530 150–250 (65–120) PC 14% NiCF 540–570 540–570 530–560 530–560 530–560 150–250 (65–120) ABS 470–520 460–520 460–520 460–530 (240–275) 460–530 (240–275) 100–200 (40–90) PP 440–480 (225–250) 440–480 (225–250) 430–470 (220–245) 420–460 (215–240) 420–460 (215–240) 125–175 (50–80) DRYING Material Temperature °F (°C) Time Minimum Moisture Maximum Moisture Nylon 6,6 14% NiCF 180 (80) 4–5 hours 0.05% 0.20% Nylon 6,6 30% SS 180 (80) 4–5 hours 0.05% 0.20% PBT 14% NiCF 250 (120) 6-8 hours 0.02% 0.03% PC 14% NiCF 250 (120) 3–4 hours 0.02% 0.02% ABS 14% NiCF 200 (90) 2–4 hours 0.05% 0.10% PP 14% NiCF 180 (80) 2–4 hours 0.20% 0.30% Equipment • Feed throats smaller than 2.5" may cause bridging due to pellet size - Larger feed throats will be more advantageous with long fiber EMI shielding resins • General purpose metering screw is recommended - Mixing/barrier screws are not recommended • L/D ratio - 18:1–20:1 (40% feed, 40% transition, 20% metering) • Low compression ratio - 2:1–3:1 • Deep flights recommended - Metering zone 3.5 mm - Feed zone 7.5 mm • Check ring - Three-piece, free-flowing check ring • General purpose nozzle (large nozzle tips are recommended) - Minimum orifice diameter of 7/32" - Tapered nozzles are not recommended for long fiber EMI shielding resins • Clamp tonnage: - 2.5–5 tons/in2 Gates • Large, free-flow gating recommended - 0.25" x 0.125" land length - 0.5" gate depth Runners • Full round gate design • No sharp corners • Minimum of 0.25" diameter • Hot runners can be used PROCESSING Screw Speed Slower screw speeds are recommended to protect fiber length Back Pressure Lower back pressure is recommended to protect fiber length Pack Pressure 60–80% of max injection pressure Hold Pressure 40–60% of max injection pressure Cool Time 10–30 seconds (depends on part geometry and dimensional stability) PROCESS CONSIDERATIONS Recommended – retain fiber length (maximize conductivity) • Low shear process • Low screw speed and screw RPM • Slow Injection speed • Fill to 99–100% on first stage of injection - Reduces potential nesting of fibers at gate location - Improves mechanical performance near gate location - Promotes ideal fiber orientation Resin Rich Surface • Achieved when using a hot mold temperature and longer cure times ≥ Max mold temperature recommendation • Improved surface aesthetic • Reduced surface conductivity • Could reduce attenuation performance in an assembly Fiber Rich Surface • Achieved when using a cold mold temperature and shorter cure times ≤ Minimum mold temperature recommendation • Improved surface aesthetic • Reduced surface conductivity • Could improve attenuation performance in an assembly www.avient.com Copyright © 2020, Avient Corporation.

E-CIGARETTE MANUFACTURER H O U S I N G • Special effect finish • Halogen-free flame-retardant material • High production efficiency • Provided PC formulation with customized speckle effect to meet specific color and surface expectations • Passed UL 94 V-0 flame retardant test at 1.0 mm • Offered better impact strength than competitor‘s PC material, and passed the drop testing • Eased processing with high-flow material Edgetek Engineered Polymer Formulations KEY REQUIREMENTS WHY AVIENT?

U-PVC WALL CEILING PRODUCER C O R R U G A T E D S H E E T • Achieved the beige color target with a uniform coloring process, ensuring a high- quality sheet appearance • Adjusted color strength in sheet production using online controls at the pump controller • Maintained a clean operation by eliminating powdery pigments in the workplace ColorMatrix Liquid Color Concentrates WHY AVIENT AVIENT SOLUTION PRODUCTIVITY + SAFETY LIQUID COLOR CONCENTRATES AND DOSING | AVIENTLEARN MORE • Reduces particulates from TiO2 bulk pigment use in the workplace • Color consistency and good surface finish • Maintain good mechanical properties and shore hardness of the extruded sheet • Compliance with heavy metal-free and RoHS regulations KEY REQUIREMENTS Copyright © 2025, Avient Corporation.

to adjusted EPS, excluding the impact of step-up depreciation and amortization related to purchase accounting.

Accounting or Activity Metric