Cut vent depths to 0.0007″–0.0015″ Draft Angle Maintain a minimum draft angle of 1° per side 4 Artisan Pre-Colored Thermoplastics Incomplete Fill Melt and/or mold too cold • Increase nozzle and barrel temperatures • Check thermocouples and heater bands Shot size • Increase shot size • Adjust transfer position to 98% full • Increase cushion Mold design • Enlarge or widen vents and increase number of vents • Check that vents are unplugged • Check that gates are unplugged • Enlarge gates and/or runners • Perform short shots to determine fill pattern and verify proper vent location • Increase wall thickness to move gas trap to parting line Brittleness Degraded/overheated material • Decrease melt temperature • Decrease back pressure • Use smaller barrel Gate location and/or size • Relocate gate to non-stress area • Increase gate size to allow higher flow rate and lower molded-in stress Wet material • Check moisture. Sink Marks Melt too hot • Decrease nozzle and barrel temperatures Insufficient material volume • Increase shot size • Increase packing pressure Part geometry too thick • Reduce wall thickness • Reduce rib thickness Processing Guide 5 Flash Injection pressure too high • Decrease injection pressure • Increase clamp pressure • Increase transfer position Excess material volume • Adjust transfer position • Decrease pack pressure • Decrease shot size Melt or mold too hot • Decrease nozzle and barrel temperatures • Decrease mold temperature Loose clamp • Reset mold height • Increase clamp tonnage Shrink Too much shrink • Increase cooling time Too little shrink • Decrease cooling time Burning • Reduce decompression Mold design • Clean, widen and increase number of vents • Increase gate size to reduce shear Wet material • Verify material is dried at proper condition Nozzle Drool Nozzle temperature too hot • Decrease nozzle temperature • Decrease back pressure • Increase screw decompression • Verify material has been dried at proper conditions Incorrect nozzle • Use reverse taper tip Weld Lines Melt front temperatures are too low • Increase pack and hold pressure Mold design • Increase gate size • Identify end of fill pattern and verify proper vent location • Add vents or increase vent width • Move gate location 6 Artisan Pre-Colored Thermoplastics Warp • Increase melt temp • Reduce injection speed • Increase pack pressure • Increase pack time • Decrease mold temperature • Increase cool time Mold design • Non-uniform mold cooling Part design • Non-uniform wall thickness Thermolator incorrect temperature • Check settings • Inspect thermocouple Sticking in Mold Overfilled cavity • Decrease injection rate and pressure • Decrease hold pressure • Decrease cooling time Part too hot • Decrease barrel temperature • Decrease mold temperature • Increase cooling time Mold design • Increase draft angle • Polish cores in direction of ejection Black Specks Contamination • Purge machine Degradation • Reduce melt temperature • Reduce screw speed • Reduce back pressure Machine related • Check for wear on screw, barrel or check ring Delamination • Increase melt temperature • Decrease injection speed • Purge barrel to eliminate material contamination Mold design • Reduce sharp corners in material flow path • Increase venting Processing Guide 7 Discoloration Oversheared material • Decrease melt temperature • Decrease injection speed • Reduce residence time Mold design • Increase gate sizing Dry material • Check moisture of material to ensure it is within the recommended moisture percentage for molding 1.844.4AVIENT www.avient.com Copyright © 2020, Avient Corporation.

Degraded/ overheated material • Decrease melt temperature • Decrease back pressure • Use smaller barrel • Decrease injection speed Gate location and/or size • Relocate gate to nonstress area • Increase gate size to allow higher flow rate and lower molded in stress Fibers/Minerals on Surface or Uneven Surface Appearance Melt temperature too low • Increase injection speed Insufficient packing • Increase hold pressure and time Processing Guide 5 Sink Marks Part geometry too thick • Reduce wall thickness • Reduce rib thickness Melt too hot • Decrease nozzle and barrel temperatures Insufficient material volume • Increase packing pressure • Increase gate size Flash Injection pressure too high • Decrease injection pressure • Increase clamp pressure • Increase transfer position Excess material volume • Adjust transfer position • Decrease pack pressure • Decrease shot size Melt and/or mold too hot • Decrease screw speed Loose clamp • Reset mold height • Increase clamp tonnage Shrink Too much shrink Too little shrink • Decrease cooling time 6 Nymax Polymer Formulations Burning Process related Mold design • Clean, widen and increase number of vents • Increase gate size to reduce shear Wet material • Check moisture. Nozzle Drool Nozzle temperature too hot • Decrease nozzle temperature • Decrease back pressure • Increase screw decompression • Verify material has been dried at proper conditions Incorrect nozzle • Use reverse taper tip Weld Lines Melt front temperatures are too low • Increase pack and hold pressure Mold design • Increase gate size • Perform short shots to determine fill pattern and verify proper vent location • Add vents and/or false ejector pin • Move gate location Warp Process related • Increase pack pressure • Increase pack time Mold design • Non-uniform mold cooling Part design • Non-uniform wall thickness Thermolator incorrect temperature • Check settings • Inspect thermocouple Processing Guide 7 Sticking in Mold Overfilled cavity • Decrease injection rate and pressure • Decrease pack and hold pressure • Adjust transfer position • Decrease cooling time Mold design • Increase draft angle • Polish cores in direction of ejection Part is too hot 1.844.4AVIENT www.avient.com Copyright © 2024, Avient Corporation.

Rheology The viscosities of both TPE-1 and TPE-2 at different shear rates were measured using a capillary rheometer at 200oC by a method prescribed in ASTM D3835. 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.

Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: • The impact of the COVID-19 pandemic has on our business, results from operations, financial condition and liquidity; • Our ability to achieve the strategic and other objectives relating to the acquisition of Clariant’s Masterbatch business, including any expected synergies; • Disruptions, uncertainty or volatility in the credit markets that could adversely impact the availability of credit already arranged and the availability and cost of credit in the future; • The effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks; • Changes in polymer consumption growth rates and laws and regulations regarding the disposal of plastic in jurisdictions where we conduct business; • Changes in global industry capacity or in the rate at which anticipated changes in industry capacity come online; • Fluctuations in raw material prices, quality and supply and in energy prices and supply; • Production outages or material costs associated with scheduled or unscheduled maintenance programs; • Unanticipated developments that could occur with respect to contingencies such as litigation and environmental matters; • An inability to raise or sustain prices for products or services; • An ability to achieve or delays in achieving or achievement of less than the anticipated financial benefit from initiatives related to acquisitions and integration, working capital reductions, cost reductions, and employee productivity goals; • Information systems failures and cyber attacks; and • Other factors affecting our business beyond our control, including, without limitation, changes in the general economy, changes in interest rates and changes in the rate of inflation. That’s Avient. 21,000+ CUSTOMERS >75% ARE CUSTOMIZED SOLUTIONS TO UNIQUE SPECIFICATIONS of sales AVIENT’S VALUE CREATION LEVERS 7 Exposure to high growth end markets Investment in commercial resources and innovation Strong free cash flow generation / capital deployment Clariant Masterbatch synergies COVID recovery Re-Rating: Current share price valuation Avient is poised for near-term and long-term shareholder value creation. 16 2021 O U TLO O K Synergies ($ millions) Initial Three-Year Estimate Revised Three-Year Estimate 2021 Expected Realization Administrative $ 18 $ 20 $ 15 Sourcing 24 30 15 Operational 18 25 5 Total Synergies $ 60 $ 75 $ 35 CLARIANT INTEGRATION & COST SYNERGIES UPDATE 18 • Integration going extremely well: synergy target increased from $60 million to $75 million • $5 million of synergies in 2020 and expect to realize $35 million in 2021 • Relentless focus on guiding principles of safety first, employee collaboration and exceeding customer expectations • Future revenue synergies are not part of these estimates and represent additional growth over the long term $86 $103 $0.53 $0.70 ORGANIC GROWTH PROJECTIONS – Q1 19 Sales Adjusted Operating Income $991 $1,090 + 10% Adjusted EPS + 20% + 32% (in millions) (in millions) (1) (1) (1) (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition $308 $360 $1.93 $2.40 ORGANIC GROWTH PROJECTIONS – FULL YEAR 20 Sales Adjusted Operating Income $3,783 $4,100 + 8% Adjusted EPS + 17% + 24% (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition (in millions) (in millions) 2020 Pro forma $3,783 $308 Sustainable Solutions 60 11% 24 Healthcare 60 11% 18 Composites 20 10% 10 Growth in Emerging Regions 50 7% 11 Other (GDP growth) 82 5% 11 Sub-total $4,055 7% $382 COVID Response Applications (25) - (11) Outdoor High Performance Applications (15) - (7) Asia Payroll Tax Subsidy (COVID) - - (4) FX Impact 85 - 7 Synergies - - 30 Incentives, Travel, Other Employee Costs - - (37) 2021 Estimated $4,100 8% $360 2021 ORGANIC SALES AND OPERATING INCOME 21 (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition (2) COVID Response Applications: facemasks, personal protective equipment Sales Growth Rate Operating Income$ millions (2) CASH FLOW AND LEVERAGE 22 • Asset light business generates significant free cash flow • Cash generation in 2021 partially offset by restructuring activities to capture synergies associated with the Clariant Masterbatch acquisition • Cash flow deployed to M&A, opportunistic share repurchases and balance sheet / leverage reduction 3.5x 2.7x 2.1x 2019PF 2020PF 2021E Net Debt / Adjusted EBITDA (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition ($ millions) 2020 2021E Adjusted EBITDA 382 510 Working Capital: Source / (Use) 116 (30) Cash Taxes (40) (53) Interest Paid (67) (76) CapEx (62) (75) CapEx for Synergy Capture (2) (20) Restructuring for Synergy Capture (11) (25) Other 22 19 Free Cash Flow 338 250 23 • 8% increase in sales drives 24% increase in adjusted EPS to $2.40 ($2.70 excluding step-up depreciation and amortization) as a result of continued growth in sustainable solutions and synergy capture • Clariant synergy capture ahead of schedule: $35M of savings planned from Clariant Masterbatch acquisition • Adjusted EBITDA of $510M – highest level in company history • Deleveraging ahead of schedule – 2.1x net debt to adjusted EBITDA by the end of 2021 2021 PROJECTIONS PEER COMPARISONS 24 As a specialty formulator, we don’t require significant capital investment, as compared to the base resin raw material suppliers we purchase from.

Low-activity amputees—level K2 as defined by the Medicare Functional Classification Level (MFCL) rating system—have the ability to traverse low- level environmental barriers such as curbs and stairs.

Resin impregnated, continuous glass fibers are drawn through a curing die of a specific cross section, yielding consistent quality, dimensions and mechanical properties to provide more consistent spring rates than alternate materials.

Resin impregnated, continuous glass fibers are drawn through a curing die of a specific cross section, yielding consistent quality, dimensions and mechanical properties to provide more consistent spring rates than alternate materials.

KEY CHARACTERISTICS • Bio-polymers that reduce the carbon footprint value significantly • Achieves equivalent performance as PA66 glass fiber-filled materials • Excellent surface appearance and colorability • Lower warpage compared with PA66 glass fiber-filled materials • Cost-effective alternative to PA66 glass fiber-filled materials • Excellent dimensional stability and property retention rate after water uptake • Commercially available in Asia APPLICATIONS Nymax BIO formulations can be applied to reach sustainability goals in demanding applications including: • Transportation • Consumer goods • Industrial • Building and construction PRODUCT BULLETIN 1.844.4AVIENT www.avient.com Copyright © 2022, Avient Corporation.

KEY CHARACTERISTICS • Resistant to heat, oil, creep and abrasion • Flame performance • Low temperature performance • Temperature ratings up to 125°C • High extrusion speeds, ambient curing properties and low capital investment • Conforms to UL-44, UL-4703 and CSA 22.2 requirements MARKETS AND APPLICATIONS Syncure XLPE formulations provide economical solutions for multiple end-use commercial and residential applications.

They are developed to achieve GWFI 960°C ratings with a maximum of 30 seconds post combustion time.