Figure 1 Surface energy of various thermoplastic elastomers with rigid thermoplastics Engineering Plastics Polyamide 6,6 ABS Polycarbonate Acrylic Polystyrene Polypropylene Polyethylene Elastomers COPA TPU COPE S-TPE TPV mPE Surface Energy (mN/m) 46 43 40 37 34 31 28 Figure 2 Schematic diagram of the peel test Table I Physical property of TPE-1 Shore A Hardness (10 second delay) 44 Specific Gravity (g/cm3) 0.90 Color Natural 300 % Modulus (PSI) 348 Tensile Strength (PSI) 603 Elongation at Break (%) 598 Tear Strength (lbf/in) 110 Table II Adhesion value of TPE-1 on different substrates Substrate Average Peel Strength (lbf) Failure Type PP 17 Cohesive Copolyester 13 Adhesive PET 13 Adhesive PPE/HIPS 18 Adhesive PMMA 15 Adhesive PS 18 Adhesive PC 17 Adhesive PC/ABS 14 Adhesive HIPS 13 Adhesive ABS 13 Adhesive Table III Properties and peel strength of TPE-2 materials 15.37Nylon 11.16.5POM 227Polyester 22.619PC/ABS 24.5-ABS 20.828PP Peel Strength (PIL) 713721Tensile Elongation (%): 10811010Tensile Strength (psi): 5651Hardness: BA 15.37Nylon 11.16.5POM 227Polyester 22.619PC/ABS 24.5-ABS 20.828PP Peel Strength (PIL) 713721Tensile Elongation (%): 10811010Tensile Strength (psi): 5651Hardness: BA Figure 3 Capillary viscosity of TPE-1 and -2 at 200°C 1.00E+00 1.00E+01 1.00E+02 1.00E+03 1.00E+01 1.00E+02 1.00E+03 1.00E+04 1.00E+05 Shear rate (1/sec) Vi sc os ity (P a* se c) TPE-1 TPE-2A TPE-2B GLS Corporation Abstract Introduction Experimental Material Two classes of “universal overmolding TPEs” have been developed and used in this study.

I am pleased to report record adjusted earnings per share of $0.46 for the first quarter," said Robert M.

Robert M.

Robert M.

Robert M.

The boss should extend into the nominal wall of the part, to avoid a thick region and possible sink Figure 4 - Drafting Guidelines for Nominal Wall Thickness Cross section showing draft Figure 5 - Rib design guidelines 1/4˚—–1˚ 2.5W W 3W Min. .01" R Min. or .25W .75W for a low shrink material .50W for a high shrink material Figure 6 - Wall thickness changes due to rib placement 16.00 14.00 12.00 10.00 8.00 6.00 4.00 2.00 5.00 10.00 15.00 20.00 25.00 30.00 35.00 Rib-height (mm) M ax D is p la ce m en t M ag n it u d e (m m ) 0 FIGURE 4 - Drafing guidelines for nominal wall thickness FIGURE 5 - Rib design guidelines FIGURE 7 - Wall thickness changes due to rib placement FIGURE 6 - Rib height vs. stiffness 10 Gravi-Tech FIGURE 8 - Side Wall Boss Design Guidelines Sink Not Recommended Preferred Design A = Diameter = A = Primary Wall = A = 2A FIGURE 9 - Guidelines Design Guidelines 4W W 2W .75W For a Low Shrink Material .50W For a High Shrink Material FIGURE 9 - Side wall boss design guidelines FIGURE 10 - Gusset design guidelines FIGURE 11 - Structural hole design guidelines area.

Robert M. M. s/ ROBERT M.

Robert M. In this way, we also keep today’s waste from becoming tomorrow’s contamination. 52% Total Waste RECYCLED OR BENEFICIALLY REUSED IN 2019 0 ZERO Reportable Releases IN EXCESS OF PERMITTED LEVEL TO THE ENVIRONMENT SINCE 2013 0 3,000 6,000 9,000 12,000 15,000 2016 2017 2018 2019 Total Waste 0 5 10 15 20 25 Total Waste Intensity 2016 2017 2018 2019 K g W as te /M T P ro d u ct io n M e tr ic T o n s HOME | Contents | Message from the CEO | Who We Are | People | Products | Planet | Performance | Goals & Metrics | Indices Sustainability Report | 2019 67 Eliminating Plastic Waste Plastic is a miraculous, versatile material that positively impacts our world. We were very pleased to again be recognized for our Board diversity by 2020 Women on Boards, with 30% of our Board being women. 20202020 2 0 % B Y 2 0 2 0 W O M E N O N B O A R D S AVERAGE TENURE 6.5 years AVERAGE AGE 60 GENDER DIVERSITY 30% women “Avient fully understands and values the responsibility of creating a sustainable global business.

Robert M. In this way, we also keep today’s waste from becoming tomorrow’s contamination. 52% Total Waste RECYCLED OR BENEFICIALLY REUSED IN 2019 0 ZERO Reportable Releases IN EXCESS OF PERMITTED LEVEL TO THE ENVIRONMENT SINCE 2013 0 3,000 6,000 9,000 12,000 15,000 2016 2017 2018 2019 Total Waste 0 5 10 15 20 25 Total Waste Intensity 2016 2017 2018 2019 K g W as te /M T P ro d u ct io n M e tr ic T o n s HOME | Contents | Message from the CEO | Who We Are | People | Products | Planet | Performance | Goals & Metrics | Indices Sustainability Report | 2019 67 Eliminating Plastic Waste Plastic is a miraculous, versatile material that positively impacts our world. We were very pleased to again be recognized for our Board diversity by 2020 Women on Boards, with 30% of our Board being women. 20202020 2 0 % B Y 2 0 2 0 W O M E N O N B O A R D S AVERAGE TENURE 6.5 years AVERAGE AGE 60 GENDER DIVERSITY 30% women “Avient fully understands and values the responsibility of creating a sustainable global business.

Robert M. AVERAGE TENURE 8 years AVERAGE AGE 61 RACIAL DIVERSITY 17% Board of Directors Governance GENDER DIVERSITY 25% female TOTAL DIVERSITY 42% HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2022 80 https://www.avient.com/sites/default/files/2023-01/Corporate%20Governance%20Guidelines%20REV%202022.pdf Robert M. POTENTIAL IMPACT ON BUSINESS POTENTIAL FINANCIAL IMPACTS POTENTIAL OPPORTUNITIES CLIMATE-RELATED IMPACTS Time Horizon Inability to remain competitive Regulatory operations curtailment Reduced production capacity Increased operating costs Reputational damage Reduced demand for products Fines/other regulatory impacts Revenue Expenditures Assets Capital costs More efficient production processes Emergence of new technologies Increased market share TR AN SI TI ON POLICY AND LEGAL Risk of regulatory change (carbon pricing) S/M/L ✓ ✓ ✓ ✓ ✓ ✓ ENERGY TECHNOLOGY Risk of energy disruption M ✓ ✓ ✓ ✓ ✓ Opportunity to reduce resource consumption S/M/L ✓ ✓ ✓ ✓ Opportunity for new technology to enable use of sustainable feedstocks M ✓ ✓ ✓ ✓ ✓ MARKET Risk of decreased availability of raw materials M ✓ ✓ ✓ ✓ ✓ Risk of product alternatives M ✓ ✓ ✓ ✓ Opportunity for products with low environmental impact S/M/L ✓ ✓ ✓ ✓ ✓ REPUTATION Risk of perceived inadequacy of climate action M/L ✓ ✓ ✓ PH YS IC AL ACUTE Risk of extreme temperatures S/M/L ✓ ✓ ✓ ✓ ✓ Risk of hurricanes/wind S/M/L ✓ ✓ ✓ ✓ ✓ Risk of flooding S/M/L ✓ ✓ ✓ ✓ ✓ CHRONIC Risk of drought S/M/L ✓ ✓ S Short: 0–5 years M Medium: 5–15 years L Long: 15–30 years HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2022 102 https://www.avient.com/company/sustainability/sustainability-report/reporting/cdp-climate-change-report Year Ended December 31, Reconciliation to EBITDA and Adjusted EBITDA 2006 2018 2022 Sales $ 2,622.4 $ 3,533.4 $ 3,396.9 APM pro forma adjustments - 8 months 2022* 256.1 Pro forma sales $ 3,653.0 Net income from continuing operations – GAAP $ 133.5 $ 160.8 $ 83.1 Income tax expense (benefit) 29.7 36.4 (19.3) Interest expense 63.1 62.8 119.8 Depreciation and amortization 57.1 91.5 162.5 EBITDA $ 283.4 $ 351.5 $ 346.1 Special items, before income tax (34.0) 59.5 194.0 Interest expense included in special items — — (26.0) Depreciation and amortization included in special items — (3.0) (5.5) JV - equity income (107.0) — — APM pro forma adjustments - 8 months 2022* — — 83.1 Adjusted EBITDA $ 142.4 $ 408.0 $ 591.7 EBITDA as a % of sales 5.4 % 11.5 % 16.2 % Reconciliation of Pro Forma Adjusted EPS 2006 2018 2022 Net income from continuing operations attributable to Avient common shareholders $ 130.9 $ 161.1 $ 82.8 Joint venture equity earnings, after tax (68.5) — — Special items, after tax (21.2) 44.6 144.6 Special items, tax adjustments (30.0) (10.4) (28.4) Amortization expense, after tax 1.4 19.5 49.0 Adjusted net income from continuing operations attributable to Avient common shareholders $ 12.6 $ 214.8 $ 248.0 Pro forma adjustments* 13.6 APM pro forma amortization expense, after tax* 19.1 Pro forma adjusted net income from continuing operations attributable to Avient shareholders $ 280.7 Diluted shares 92.8 80.4 92.2 Adjusted EPS attributable to Avient common shareholders $ 0.14 $ 2.67 $ 3.04 * Pro forma adjustment to reflect APM results for the period before Avient ownership including the impacts of debt financing and paydown of debt with net proceeds from the Distribution sale.