All Rights Reserved 2025 Full-year 2024 highlights ► 4% organic revenue growth for Avient; 3% for CAI and 6% for SEM ► Adjusted EBITDA margin expanded 20 bps for Avient; 90 bps for CAI and 110 bps for SEM ► New strategy in execution Leadership team strengthened with a new CTO, CIO, General Counsel, SVP (New business development & marketing) in place ► New compensation plan rolled out in January 2025, in direct alignment with the strategy ► 2024 was our safest year on record ► Increased dividend 5% to $1.08 on an annualized basis; 14th consecutive increase FY 2024 results FULL YEAR 2024 VS.

The Board will act on each tendered resignation, taking into account the Governance and Corporate Responsibility Committee’s recommendation, within 90 days following the certification of the election results.

Shore A instruments are not as accurate when readings are above 90.

This year we were proud to achieve an important milestone in this regard: receiving an impressive score of 90/100 on the 2019 Corporate Equality Index (CEI)—in just our first year participating. We are very pleased with our CEI score of 90 in our first year participating in the study, and I am extremely thankful to be part of a company that truly invests in Diversity & Inclusion.” $12M+ For United Way Since 2006 2.0 1.5 1.0 .5 09+22+36+55+83+90+94 2006 2008 2010 2012 2014 2016 2018 $ M il li o n s U .S . d o ll a rs Sustainability Report | 2018 69 Global Vision 2020 PolyOne collaborates with Global Vision 2020, a non-profit organization that provides a system for diagnosing and creating eyeglasses onsite for people in low resource countries with no access to eye care.

After incubation for 24 h at 35�C/90% rel- ative humidity, samples were plate counted, and the average number of CFU/sample was determined. J. 2019, 90, 1157. [22] W.

Assess top 90% of supplier spend for alignment with Avient Sustainability objectives. This innovation drives performance and is reflective of consistent, strategic investments in our portfolio…and people. 2020 Pro forma $991 $86 Sustainable Solutions 15 11% 6 Healthcare 28 22% 6 Composites 6 10% 3 Growth in Emerging Regions 44 30% 10 Other 53 10% 7 Sub-total $1,137 15% $118 FX Impact 25 - 2 Synergies - - 11 Incentives, Travel, Other Employee Costs - - (8) 2021 Actual $1,162 17% $123 Q1 2021 ORGANIC SALES AND OPERATING INCOME ( T O TA L C O M PA N Y ) 18 (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition Sales Growth Rate Adjusted Operating Income$ millions (1) 19 Electrical & Electronics Building & Construction Wire & Cable Transportation Industrial Healthcare Packaging Consumer Q1 2020PF Q1 2021 (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition (2) Financial information is presented on a constant currency basis (1,2) (42% of total revenue) (58% of total revenue) Q1 END MARKET SALES PERFORMANCE +17% +14% +8% +10% +8% +22% +5% +24% Q 2 A N D F U L L Y E A R 2 0 2 1 O U T L O O K A S O F A P R I L 3 0 , 2 0 2 1 W E B C A S T $69 $112 2020PF 2021E $0.42 $0.80 2020PF 2021E ORGANIC GROWTH PROJECTIONS – Q2 ( T O TA L C O M PA N Y ) 21 Sales Adjusted Operating Income $870 $1,100 2020PF 2021E + 26% Adjusted EPS + 62% + 90% (in millions) (in millions) (1) (1) (1) (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition FULL YEAR GUIDANCE INCREASED 22 Sales Adj.

10/01/2024, 04:45 pm Avient 2024 CDP Corporate Questionnaire 2024 Word version Important: this export excludes unanswered questions This document is an export of your organization’s CDP questionnaire response. Through this program, we have mapped 90% of direct suppliers (tier 1) by spend. We are targeting 75% of our total direct spend in 2024 towards our 2030 Sustainability Goal of 90%.

This organization is a CEO-led, cross-sector, not-for-profit made up of approximately 90 companies. Garratt 2/08/2021 — — — — — 5,417 225,185 2/14/2022 — — — — — 4,794 199,287 2/17/2023 — — — — — 5,701 236,991 2/04/2015 9,200 — — 38.27 2/04/2025 — — 2/15/2017 13,250 — — 34.10 2/15/2027 — — 2/14/2018 11,050 — — 41.89 2/14/2028 — — 2/11/2019 18,200 — — 31.54 2/11/2029 — — 2/10/2020 19,650 — — 31.48 2/10/2030 — — 2/08/2021 13,433 6,717 — 42.27 2/08/2031 — — 2/14/2022 — — 16,000 52.64 2/14/2032 — — 2/17/2023 — — 18,800 42.93 2/17/2033 — — J.R. The Named Executive Officers are permitted to elect to defer up to 90% of their salary and annual bonus between the Qualified Savings Plan and the Supplemental Plan.

Product Family and Temperatures Product Family Mold Melt Nozzle Zone 3 Zone 2 Zone 1 Feed SBS Formulations 75-90ºF (25-32ºC) 370-390ºF (190- 200ºC) 370-390ºF (190- 200ºC) 360-380ºF (185- 195ºC) 340-360ºF (170- 182ºC) 300-330ºF (150- 165ºC) 100-150ºF (40-65ºC) SEBS Formulations 110-130ºF (43-55ºC) 370-430ºF (190- 220ºC) 390-430ºF (200- 220ºC) 390-430ºF (200- 220ºC) 370-390ºF (190- 200ºC) 350-370ºF (175- 190ºC) 100-170ºF (40-75ºC) Supersoft Formulations 110-130ºF (43-55ºC) 340-390ºF (170- 200ºC) 360-390ºF (180- 200ºC) 360-390ºF (180- 200ºC) 335-375ºF (170- 190ºC) 300-330ºF (150- 165ºC) 100-120ºF (40-50ºC) Setting Shot Size When starting up a new mold, begin with short-shots, then gradually increase the shot size until all part cavities are 80-90% filled. Maintain this speed until the part is 90% full and then reduce it further to completely fill the cavity without flashing the part.

The Board will act on each tendered resignation, taking into account the Governance and Corporate Responsibility Committee’s recommendation, within 90 days following the certification of the election results.