WHAT WE DO: MATERIAL SCIENCE CUSTOM FORMULATION We sell solutions not commodities. Our exceptional polymer scientists and design engineers are integral to their product development process. 34 We are a specialty formulator that enables many of the world’s products through innovation and custom solutions.

WHAT WE DO: MATERIAL SCIENCE 4 CUSTOM FORMULATION We sell solutions not commodities. Our exceptional polymer scientists and design engineers are integral to their product development process. 29 We are a specialty formulator that enables many of the world’s products through innovation and custom solutions.

Our purpose at Avient is to be an innovator of materials solutions that help our customers succeed, while enabling a sustainable world. Jellison Retired Vice President, Chief Financial Officer of Stryker Corporation (“Stryker”), one of the world’s leading medical technology (“Medtech”) companies. Former Directorships: • Univar Solutions Inc.

Added to the feed throat and designed to increase the polymer chain length via reactive extrusion, rePrize enables an increase in both the polymer intrinsic and melt viscosity. FEATURE BENEFIT • Liquid technology • More accurate dose control • Less variation in melt flow and product IV • Can be coupled to an on-line rheometer • Shorter transition times • Does not require pre-drying • Less dust • Higher IV in melt phase • Improved uniformity when replacing virgin PET in PCR sheet • Eliminate/reduce solid phase polymerization (rPET) • Increased use of post consumer flake or re-grind (Sheet) • Reduced brittleness, less breakages and scrap • More consistent melt flow • Reduced cost • Higher productivity • Cleaner working environment PROCESS HIGHLIGHTS • Higher productivity • Cleaner working environment • New product designs and applications • Improved shelf appeal PET SHEET • Increases final IV • Less variation in product IV • More consistent melt flow • Increased use of flake or regrind • Shorter transition times • Reduced scrap • Reduced dust • Improved impact strength • Improved low temperature performance • Improved aesthetics Information and photographs supplied by Sunwell Global Ltd • Higher productivity • Improved sustainability • Lighter weight, higher strength • Properties comparable to PS packaging • Recyclable PET MONO/MULTI LAYERED SHEET XPET FOAM SHEET ROUND DIE • Improved melt flow consistency • Improved IV consistency • Increased recycle content • Reduced rejects and scrap • Increased product strength • Improved low temperature performance • Increase final IV • Increased use of regrind • Impossible to start up without it • Faster product changeover • Easier to cut • Increased strength • Lighter weight • Good sealing ColorMatrix™ rePrize is a PET compatible formulated liquid dispersion, designed to increase the polymer chain length via reactive extrusion. This results in an increase in both the polymer intrinsic and melt viscosity. rePrize is suited to applications in: • PET monolayer sheet • PET multilayered sheet • PET foamed sheet rePrize can be used to optimise sheet manufacturing processes and product quality, whilst allowing for increased levels of recycle, contributing towards improved sustainability and reduced costs PRODUCT DESCRIPTION GLOBAL REGULATORY APPROVALS PRODUCT FDA EU GB MERCOSUR rePrize • • • • 1.844.4AVIENT www.avient.com Copyright © 2020, Avient Corporation.

CLEVELAND, July 22, 2020 /PRNewswire/ -- Avient Corporation (NYSE: AVNT), a leading provider of specialized and sustainable material solutions, today reported its second quarter results for 2020.  Avient Corporation (NYSE: AVNT), with 2019 pro forma revenues of $4.0 billion, provides specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world. Light-weighting solutions that replace heavier traditional materials like metal, glass and wood, which can improve fuel efficiency in all modes of transportation

BASE RESIN PPA PC PSU PES PPS CO- POLYMER ACETAL PEEK PA Barrel Temperatures* °F (°C) Rear Zone 550–580 (288–305) 520–560 (271–293) 600–640 (316–338) 630–660 (332–338) 550–580 (288–304) 350–370 (177–188) 660–700 (349–371) 440–490 (227–254) Center Zone 560–600 (293–316) 530–570 (277–299) 620–670 (327–354) 650–680 (343–360) 560–615 (293–324) 380–390 (193–200) 700–730 (371–388) 470–510 (243–266) Front Zone 580–620 (304–327) 550–580 (288–305) 630–680 (332–360) 670–730 (354–388) 590–630 (310–332) 390–430 (200–221) 720–750 (382–400) 490–540 (254–282) Nozzle 575–615 (302–324) 550–600 (288–316) 630–680 (332–360) 680–700 (360–371) 600–625 (316–330) 380–415 (193–213) 720–750 (382–400) 520–570 (271–300) Melt Temperature 575–615 (302–324) 560–600 (293–316) 625–675 (330–358) 650–710 (343–377) 600–625 (316–330) 370–410 (188–210) 670–740 (354–393) 520–570 (271–300) Mold Temperature 250–300 (121–150) 175–240 (80–116) 190–300 (88–150) 225–325 (107–164) 250–325 (121–164) 150–225 (66–107) 290–375 (143–190) 150–200 (66–93) Pack & Hold Pressure 50%–75% of Injection Pressure Injection Velocity in/s 1.0–3.0 Back Pressure psi 50 Screw Speed rpm 50–90 Drying Parameters °F (°C) 6 hrs @ 175 (80) 4 hrs @ 250 (121) 4 hrs @ 275 (135) 4 hrs @ 300 (150) 4 hrs @ 250 (121) 2 hrs @ 200 (93) 3 hrs @ 300 (150) 4 hrs @ 180 (82) Allowable Moisture % < 0.05 < 0.02 < 0.02 < 0.04 < 0.02 0.15–0.20 < 0.02 0.10–0.20 Cushion in 0.125–0.250 Screw Compression Ratio 2.5:1–3.5:1 2.0:1–2.5:1 2.5:1–3.5:1 2.5:1–3.5:1 2.5:1–3.5:1 2.5:1–3.5:1 2.5:1–3.5:1 2.5:1–3.5:1 Nozzle Type General General General General General General General Reverse Taper Clamp Pressure 5–6 Tons/in2 of projected area of cavities and runner system * Barrel temperatures should be elevated for compounds designed for electrical insulative properties. PROBLEM CAUSE SOLUTION Incomplete Fill Melt and/or mold temperature too cold Shot Size • Increase nozzle and barrel temperatures • Increase mold temperature • Increase injection speed • Increase pack and hold pressure • Increase nozzle tip diameter • Check thermocouples and heater bands • 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 • Increase cushion Brittleness Melt temperature too low Degraded/Overheated material Gate location and/or size • Increase melt temperature • Increase injection speed • Measure melt temperature with pyrometer • Decrease melt temperature • Decrease back pressure • Use smaller barrel/excessive residence time • Relocate gate to nonstress area • Increase gate size to allow higher flow speed and lower molded-in stress Fibers on Surface (Splay) Melt temperature too low Insufficient packing • Increase melt temperature • Increase mold temperature • Increase injection speed • Increase pack and hold pressure, and time Sink Marks Part geometry too thick Melt temperature too hot Insufficient material volume • Reduce wall thickness • Reduce rib thickness • Decrease nozzle and barrel temperatures • Increase shot size • Increase injection rate • Increase packing pressure Flash Injection pressure too high Excess material volume Melt and/or mold temperature too hot • Decrease injection pressure • Increase clamp pressure • Decrease injection speed • Increase transfer position • Decrease pack pressure • Decrease shot size • Decrease injection speed • Decrease nozzle and barrel temperatures • Decrease mold temperature • Decrease screw speed TROUBLESHOOTING RECOMMENDATIONS PROBLEM CAUSE SOLUTION Excessive Shrink Too much orientation • Increase packing time and pressure • Increase hold pressure • Decrease melt temperature • Decrease mold temperature • Decrease injection speed • Decrease screw rpm • Increase venting • Increase cooling time Not Enough Shrink Too little orientation • Decrease packing pressure and time • Decrease hold pressure • Increase melt temperature • Increase mold temperature • Increase injection speed • Increase screw rpm • Decrease cooling time Burning Melt and/or mold temperature too hot Mold design Moisture • Decrease nozzle and barrel temperatures • Decrease mold temperature • Clean, widen and increase number of vents • Increase gate size or number of gates • Verify material is dried at proper conditions Nozzle Drool Nozzle temperature too hot • Decrease nozzle temperature • Decrease back pressure • Increase screw decompression • Verify material has been dried at proper conditions Weld Lines Melt front temperatures too low • Increase pack and hold pressure • Increase melt temperature • Increase vent width and locations • Increase injection speed • Decrease injection speed • 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 Excessive orientation • Increase cooling time • Increase melt temperature • Decrease injection pressure and injection speed • Increase number of gates Sticking in Mold Cavities are overpacked Part is too hot • Decrease injection speed and pressure • Decrease pack and hold pressure • Decrease nozzle and barrel temperatures • Decrease mold temperature • Increase cooling time • Increase draft angle • Decrease nozzle and barrel temperatures • Decrease mold temperature TROUBLESHOOTING RECOMMENDATIONS Note: These are general processing conditions.

Base Resin PPA PC PSU PES PPS Co- polymer Acetal PEEK PA Barrel Temperatures* °F (°C) Rear Zone 550–580 (288–305) 550–590 (288–310) 600–640 (316–338) 630–660 (332–338) 550–580 (288–304) 350–370 (177–188) 660–700 (349–371) 440–490 (227–254) Center Zone 560–600 (293–316) 570–600 (300–316) 620–670 (327–354) 650–680 (343–360) 560–615 (293–324) 380–390 (193–200) 700–730 (371–388) 470–510 (243–266) Front Zone 580–620 (304–327) 580–630 (304–322) 630–680 (332–360) 670–730 (354–388) 590–630 (310–332) 390–430 (200–221) 720–750 (382–400) 490–540 (254–282) Nozzle 575–615 (302–324) 580–630 (304–322) 630–680 (332–360) 680–700 (360–371) 600–625 (316–330) 380–415 (193–213) 720–750 (382–400) 520–570 (271–300) Melt Temperature 575–615 (302–324) 580–625 (304–330) 625–675 (330–358) 650–710 (343–377) 600–625 (316–330) 370–410 (188–210) 670–740 (354–393) 520–570 (271–300) Mold Temperature 250–300 (121–150) 175–240 (80–116) 190–300 (88–150) 225–325 (107–164) 250–325 (121–164) 190–250 (88–121) 290–375 (143–190) 150–200 (66–93) Pack & Hold Pressure 50%–75% of Injection Pressure Injection Velocity in/s 1.0–3.0 Back Pressure psi 50 Screw Speed rpm 50–90 Drying Parameters °F (°C) 6 hrs @ 175 (80) 4 hrs @ 250 (121) 4 hrs @ 275 (135) 4 hrs @ 250 (121) 3 hrs @ 300 (150) 2 hrs @ 200 (93) 3 hrs @ 275 (135) 4 hrs @ 180 (82) Cushion in 0.125–0.250 Screw Compression Ratio 2.5:1–3.5:1 2.0:1–2.5:1 2.5:1–3.5:1 2.5:1–3.5:1 2.5:1–3.5:1 2.5:1–3.5:1 2.5:1–3.5:1 2.5:1–3.5:1 Nozzle Type General General General General General General General Reverse Taper Clamp Pressure 5–6 Tons/in2 of projected area of cavities and runner system * Barrel temperatures should be elevated for compounds designed for electrical insulative properties. PROBLEM CAUSE SOLUTION Excessive Shrink Too much orientation • Increase packing time and pressure • Increase hold pressure • Decrease melt temperature • Decrease mold temperature • Decrease injection speed • Decrease screw rpm • Increase venting • Increase cooling time Not Enough Shrink Too little orientation • Decrease packing pressure and time • Decrease hold pressure • Increase melt temperature • Increase mold temperature • Increase injection speed • Increase screw rpm • Decrease cooling time Burning Melt and/or mold temperature too hot Mold design Moisture • Decrease nozzle and barrel temperatures • Decrease mold temperature • Clean, widen and increase number of vents • Increase gate size or number of gates • Verify material is dried at proper conditions Nozzle Drool Nozzle temperature too hot • Decrease nozzle temperature • Decrease back pressure • Increase screw decompression • Verify material has been dried at proper conditions Weld Lines Melt front temperatures too low • Increase pack and hold pressure • Increase melt temperature • Increase vent width and locations • Increase injection speed • Decrease injection speed • 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 Excessive orientation • Increase cooling time • Increase melt temperature • Decrease injection pressure and injection speed • Increase number of gates Sticking in Mold Cavities are overpacked Part is too hot • Decrease injection speed and pressure • Decrease pack and hold pressure • Decrease nozzle and barrel temperatures • Decrease mold temperature • Increase cooling time • Increase draft angle • Decrease nozzle and barrel temperatures • Decrease mold temperature TROUBLESHOOTING RECOMMENDATIONS PROBLEM CAUSE SOLUTION Incomplete Fill Melt and/or mold temperature too cold Shot Size • Increase nozzle and barrel temperatures • Increase mold temperature • Increase injection speed • Increase pack and hold pressure • Increase nozzle tip diameter • Check thermocouples and heater bands • 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 • Increase cushion Brittleness Melt temperature too low Degraded/Overheated material Gate location and/or size • Increase melt temperature • Increase injection speed • Measure melt temperature with pyrometer • Decrease melt temperature • Decrease back pressure • Use smaller barrel/excessive residence time • Relocate gate to nonstress area • Increase gate size to allow higher flow speed and lower molded-in stress Fibers on Surface (Splay) Melt temperature too low Insufficient packing • Increase melt temperature • Increase mold temperature • Increase injection speed • Increase pack and hold pressure, and time Sink Marks Part geometry too thick Melt temperature too hot Insufficient material volume • Reduce wall thickness • Reduce rib thickness • Decrease nozzle and barrel temperatures • Increase shot size • Increase injection rate • Increase packing pressure Flash Injection pressure too high Excess material volume Melt and/or mold temperature too hot • Decrease injection pressure • Increase clamp pressure • Decrease injection speed • Increase transfer position • Decrease pack pressure • Decrease shot size • Decrease injection speed • Decrease nozzle and barrel temperatures • Decrease mold temperature • Decrease screw speed TROUBLESHOOTING RECOMMENDATIONS www.avient.com Copyright © 2020, Avient Corporation.

I’m very pleased with our results as second quarter sales and adjusted EPS reached all-time highs driven by our portfolio of sustainable solutions and continued strong demand conditions,” said Robert M. Magna represents another addition to our growing portfolio of sustainable solutions, as brand owners seek eco-conscious materials for their customers,” Mr. Sustainability Report and Upcoming Investor Day “We plan to host an investor day in New York City on December 9 to highlight our sustainable solutions portfolio, Clariant Masterbatch integration synergies and future growth plans.

ESC is defined as the premature embrittlement and crack propagation of a polymer part. Ideally, all polymer contacting edges should be round or radiused. Sharp edges on an insert can create sharp edges on the polymer that result in a stress riser.

PMMA Considering lens performance, Resilience™ LS Frost PVC offers properties and material performance similar to PMMA, often at a significantly lower cost. 1 ASTM D-1003 measured by Polymer Diagnostics, Inc. Find out more about the full line of Resilience LS family of rigid vinyl polymers for clear and diffuse lens materials.