A Design Forum on April 19 from 10:35 to 11:00 hours at Hall 18, Room CC201A, 2/F, on ColorForward™ Color Forecasting and GraviTech™ Density-Modified Formulations

Addressing Circular Economy Challenges with Innovative Color and Additive Solutions: presented by Derek Lua from Color & Additives Asia, April 23 at 1:10 pm

Avient invites visitors to explore its sustainability initiatives and innovations at NPE 2024 May 6-10 at the company's customer center in Room S210, Level II, South Hall of the Orange County Convention Center in Orlando, Florida.  

Elect 10 nominees to our Board; 2. ELECTION OF BOARD OF DIRECTORS 10 William H. 10) Represents a grant of performance shares on 2014年5月15日.

Director since: 2018 Age: 69 Current Public Company Directorships: • Haemonetics Corporation Former Directorships: • Halyard Health, Inc. • RadioShack Corp. • Lubrizol Corp. • Kimberly-Clark de Mexico Richard H. Beggs, the stock awards include RSUs that were granted on February 10, 2020 and vested on February 10, 2023. Proposal 3 - Ratification of EY Report of Audit Committee 10.

AQUARIUS™ SB - MAGENTA CONCENTRATE 10.

Page 102 Critical Imperatives – Medium to Long Term • Continue cultural and paradigm shift from commodity compounder to collaborative formulator as One PolyOne • Accelerate innovation and leverage megatrends to improve our mix of business with higher-margin improve our mix of business with higher-margin specialty products • Increase specialty contribution and advance globalization via acquisitions • Drive relentless execution and creative innovation as key competitive differentiators Page 103 2011 Proforma ColorMatrix 2015 Target “Where we are” “Where we expect to be” 1) Operating Income % Specialty 8.9% PP&S 7.2% 12 – 16% 9 – 12% Elevating our Expectations and Yours PP&S 7.2% Distribution 5.6% 2) Specialty Platform % of Operating Income 50% 3) ROIC* (after-tax) 10% 4) Adjusted Annual EPS Growth 3 yr CAGR = 71% 9 – 12% 6 – 7.5% 65 – 75% 15% Double Digit Expansion *ROIC is defined as TTM adjusted OI divided by the sum of average debt and equity over a 5 quarter period Page 104

Nutritional components in dairy products are photosensitive, making them susceptible to light degradation • Light protection in dairy packaging helps maintain product integrity and extend shelf life A LIGHT BLOCKING SOLUTION THAT PROVIDES: • Light blocking and whiteness in PET dairy packaging • Protection from 2 weeks up to 12 months shelf life • Compatibility with monolayer and multilayer PET preforms • Full compatibility with rPET • Food contact approved (region dependent) • Low TiO₂ levels to increase recyclability, aligning with the emergence of white recycle streams PASTEURIZED MILK Typical shelf life 5–10 days WHITE COLOR LACTRA ESL LACTRA SX or LACTRA 4 EXTENDED SHELF LIFE MILK Typical shelf life 2 weeks–3 months UHT MILK & PRODUCTS Typical shelf life 4–12 months Lightweighting/CO2 reduction Reduced LDR – material & cost savings Improved processing performance BENEFITS OF COLORMATRIX™ LACTRA™ Improved bottle performance Compatibility with rPET Helps to Protect Performance Energy efficiency Whiteness 85–92 L* 30% less life cycle emissions Increased machinery life cycle due to reduced wear & tear 80–100% light blocking performance © 2024, All Rights Reserved Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012

If Buyer has a dispute with respect to an invoice, Buyer must notify Seller within ten (10) business days after the date of invoice. Buyer must notify Seller of such acquisition within ten (10) days thereof. Within ten (10) days after receipt of such notice, Seller may exercise its right to terminate the order confirmation by giving Buyer written notice. 21.

The Edgetek REC PC portfolio includes six PCR and six PIR grades with glass filler levels from 10–30%.