October 27, 2015 at 8:00 a.m. +1 440-930-1018 +1 440-930-3162

You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the Securities and Exchange Commission. EBITDA $130 million +6% (+7% ex FX)Net Sales $815 million +8% (+8.5% ex FX) Net Sales $815 million +8% (+8.5% ex FX) Q 3 2024 R ES U LT S TOTAL COMPANY $754 $815 $123 $130 (in millions) $0.57 (in millions) Adjusted EBITDA Adjusted EPS 5 + 8% (+8.5% excluding FX) + 6% (+7% excluding FX) + 14% (+16% excluding FX) Sales 6 Q3 2024 RESULTS – ORGANIC REVENUE GROWTH BY REGION VS PY 6 +9% +5% +11% +27% Avient ex. FX +8.5% FX -0.4% Total Avient +8.1% Note: Regional Sales Percentages exclude impact of foreign exchange COLOR, ADDITIVES & INKS SEGMENT $487 $522 $89 $97 (in millions) (in millions) 7 + 7% (+8% excluding FX) + 9% (+11% excluding FX) 18.3% +40 bps *18.7% * * Adjusted EBITDA Margin % • Sales growth driven by winning new product specifications in consumer & packaging, strong underlying demand in healthcare and improving demand in building & construction • Favorable mix and raw material deflation contributed to EBITDA margin expansion SPECIALTY ENGINEERED MATERIALS SEGMENT $268 $295 $51 $57 (in millions) (in millions) 8 • Sales growth driven by restocking in healthcare & consumer end markets and strong underlying demand for composite applications used in building & construction, energy and defense end markets • Favorable mix contributed to EBITDA margin expansion + 10% (+10% excluding FX) + 12% (+13% excluding FX) 19.0% +40 bps *19.4% * * Adjusted EBITDA Margin % 2024 G U IDA N CE FY 2024 GUIDANCE Previous (Aug 6) Current Adjusted EPS $2.55 to $2.70 $2.63 to $2.67 Adjusted EBITDA $515 to $540 million $525 to $530 million Interest Expense $105 million $104 million Adjusted Effective Tax Rate 23% to 25% 23% to 25% Capital Expenditures & Investment in S/4 Hana ~$140 million ~$140 million 10 11 • Investor Day to be held December 4, 2024 at the NYSE, beginning at 10AM • The focus will be to do a deep dive on the Company’s strategy • Registration and microsite will be available in early November 2024 AVIENT INVESTOR DAY AP P EN D IX 18 Performance Additives 15% Pigments TiO2 Dyestuffs Polyethylene 10%Nylon Polypropylene Styrenic Block Copolymer Other Raw Materials 38% ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials RAW MATERIAL BASKET SEGMENT DATA U.S. & Canada 41% 36% 2023 SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS 19% 23%Industrial Building and 7% END MARKET REVENUE $2,007M $358M $1,138M $224M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $502M$3,143M (1) 7% 20 (1) Total company sales and adjusted EBITDA of $3,143M and $502M, respectively, include intercompany sales eliminations and corporate costs 2023 REVENUE | $2 .0 B ILL ION 34% 37% 21% END MARKET REGION 21 34% 21% 15% Building & 1% Energy COLOR, ADDITIVES & INKS 2023 REVENUE | $1 .1 B ILL ION 52% 35% 22 6%Industrial 12% 10% Defense Building & END MARKET REGION SPECIALTY ENGINEERED MATERIALS 32% 26% Building & 6% 2% Defense 1% (18% of sales) 2023 AVIENT REGIONAL SALES 25% Building & (36% of sales)Transportation 22% Building & 12% 6% US & Canada (41% of sales) 59% 22% Building & LATAM (5% of sales) 23 BY END MARKET Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except for per share data) Senior management uses comparisons of adjusted net income from continuing operations attributable to Avient shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results.

July 1, 2014 The company will host a conference call at 8:00 a.m. Teleconference: July 22, 2014 at 8:00 a.m.

October 1, 2014 The company will host a conference call at 8:00 a.m. Teleconference: October 24, 2014 at 8:00 a.m.

The company will host a conference call at 8:00 a.m. Teleconference: January 29, 2014 at 8:00 a.m. Dial-in number: Domestic: 1-866-543-6403                          International: 1-617-213-8896

The company will host a conference call at 8:30 a.m. Teleconference: January 28, 2015 at 8:30 a.m. Dial-in number: Domestic: 1-844-835-7433                           International: 1-914-495-8589

The company will host a conference call at 8:00 a.m. Teleconference: May 1, 2014 at 8:00 a.m. ET, May 1, 2014

Oct. 1, 2018 8:00 a.m. October 24, 2018 at 8:00 a.m.

8:00 a.m. October 26, 2016 at 8:00 a.m. Domestic: 1-844-835-7433

8:00 a.m. April 17, 2019 at 8:00 a.m. Domestic: 1-844-835-7433