Product Name H15 H XF V2 70 MF5200-5004 NHFR V2 HS MF5200-5005 NHFR V2 RS H MF5200-5006 NHFR V2 RS HS H6 H XF V0 70 H20 H XF V0 T 70 H6 T/05 H XF V0 70 H6 T/10 H XF V0 70 H6 T/20 XF V0 T 70 H6 GF/10 XF V070 H8 GF/20 XF V0 70 H12 GF/25 H XF V0 70 H6 GF/30 XF V0 70 PE H XF V0 70 Polymer PP PE Flammability V2 V2 V2 V2 V0 V0 V0 V0 V0 V0 V0 V0 V0 V0 UL Listed No No No No No No No No No No No No No Yes Reinforcement Unfilled Unfilled Talc Talc Unfilled Unfilled Talc Talc Talc Glass Filled Glass Filled Glass Filled Glass Filled Unfilled Density (g/cm3) 1.03 0.9 0.98 1.05 1.07 1.06 1.08 1.15 1.16 1.11 1.25 1.32 1.35 1 MFI, 230°C/2.16 kg 13 20 23 20 5.5 20 6 6 6 6 7 12 5.5 E-Modulus (Tensile Modulus - Mpa) 1900 1500 2400 2600 2500 2500 2500 3000 3000 4300 6500 7500 8250 2000 Tensile Strength (Mpa) 25 30 32 30 26 20 26 25 23 55 70 75 78 20 Elongation (%) Product Name C10 XF V2 70 C10 H XF V0 70 C10 H XF V0 T C10 T/10 XF V0 70 C10 T/20 XF V0 70 C6 GF/30 H XF V0 70 C2 GF/20 XF V0 T 70 C6 GF30 H UV XF V0 70 GREY X2 70 GREY X3 70 Resin Chemistry COPO HOMO + COPO Polymer PP Flammability V2 V0 V0 V0 V0 V0 V0 V0 V0 V0 UL Listed No No No No No Yes No No No No Reinforcement Unfilled Unfilled Unfilled Talc Talc Glass Filled Glass Filled Glass Filled Glass Filled Glass Filled Density (g/cm3) 1.01 1.06 1.09 1.16 1.28 1.35 1.23 1.38 1.24 1.25 MFI, 230°C/2.16 kg 7 10 10 9 10 4.5 2.5 4.5 4 0 E-Modulus (Tensile Modulus - Mpa) 1800 1500 1300 1500 2400 8000 5000 8000 5250 6000 Tensile Strength (Mpa) 18 15 20 15 15 60 45 60 40 45 Tensile Strain at Break (ISO 527-2) (%) 63

Cotrep AT 20-21_AVIENT CORPORATION_CESA® IR PE 94000828 AT 20-21 1 Avis Technique – Tri Détectabilité et tri de la solution colorante AVIENT CORPORATION / CESA® IR PE 94000828 dans les centres de tri D ES C R IP TI O N D E LA D EM A N D E GENERALITES Demandeur Avient Corporation Date de la demande 2020 Référence de la solution colorante CESA® IR PE 94000828 Limite max de concentration de la solution colorante 4% DESCRIPTION DE LA SOLUTION COLORANTE Couleur Noire Solution colorante adaptée pour : Emballages rigides en PP OBJET DE LA DEMANDE Etude de la détectabilité dans les centres de tri français de la solution colorante noire CESA® IR PE 94000828 proposée par Avient Corporation et utilisée pour colorer des emballages rigides en PP.

AJUSTAR LA ADHERENCIA MEZCLANDO VERSAFLEX PF Grosor de la película: LDPE de 39 micras/Versaflex PF de 13 micras F = �Adherencia final después de 7 días a 25° C i = �Adherencia inicial después de 20 minutos a 25° C Re si st en ci a al d es pr en di m ie nt o so br e ac er o, N /2 5 m m . Re si st en ci a al d es pr en di m ie nt o so br e ac er o, N /2 5 m m .

En América Latina, nuestras plantas de producción de colorantes y aditivos han obtenido con gran satisfacción las certificaciones ISO 9001:2015, ISO 22000:2018, ISO 14001:2015, RC 14001®:2015 e IATF 16949:2016. ISO 9001:2015 No. de certificado: 65799 ISO 9001:2015 No. de certificado: 49862 ISO 9001:2015 No. de certificado: 31307 ISO 14001:2015 No. de certificado: 65537 RC 14001®:2015 No. de certificado: 65536 ISO 22000:2018 No de regulacion: 46389 IATF 16949:2016 No. de certificado: 63431 Toluca, Mexico ✓ ✓ ✓ ✓ Santa Clara, Mexico ✓ ✓ ✓ ✓ Guatemala City Guatemala ✓ ✓ ✓ Cota, Columbia ✓ ✓ ✓ Suzano, Brazil ✓ ✓ ✓ Itupeva, Brazil ✓ Buenos Aires, Argentina ✓ ✓ ✓ Santiago, Chile ✓ ✓ ✓ Puede encontrar certificados e información adicional en la biblioteca de certificados ISO globales de Avient ISO 9001:2015 ISO 14001:2015 es la norma internacional para la mejora ambiental continua y el cumplimiento normativo de los Sistemas de Gestión Ambiental (SGA).

Thereforff e, our Board recommends that you vote forff an annual Say on Pay vote, for the reasons stated below. Garratt have been with PolyOne less than fivff e years. Estimated Future Payouts Under Non-Equity Incentive Plan Awards (columns (c), (d) and (e)) (2) 2016 Annual InceII ntivtt e Prograo m Paymentstt .

Copia Escritura - ACTA SANTIAGO Certifico que el presente documento electrónico es copia fiel e íntegra de ACTA otorgado el 31 de Mayo de 2021 reproducido en las siguientes páginas.

ABS Quality Evaluations This is to certify that the Quality Management System of: PolyOne Corporation 733 E.

Microsoft Word - IATF 16949 North Baltimore[80].doc ABS Quality Evaluations Certificate Of Conformance This is to certify that the Quality Management System of: Avient Corporation Engineered Materials Division Avient Corporation 733 E.

PROFILE/SHEET EXTRUDER R A I L S A N D K I C K P L A T E S • Convert existing PVC profile and sheet rails and kick plates to polyethylene resin to meet Class A fire safety (ASTM E84) • Provide a system that meets healthy building certifications and approvals • Utilize a more sustainable flame retardant technology, removing brominated or halogenated flame retardants from the environment • Achieve non-compromising performance in aesthetics, impact, dimensional stability, CLTE, and E84 testing • Provided non-halogenated flame retardant platform, backed by extensive application and industry expertise, to meet global flammability standards • Has largest UL94 recognized Prospector membership with HB, V-0, V-1, V-2 and 5VA/5VB ratings, and broad glow wire performance products • Included in-house UL certified labs and manufacturing locations to perform UL94 material sampling and testing • Supported application development to meet fire safety standards, address current or emerging healthy building codes, smart home requirements, and LEED credits • Offered custom formulations in small lot quantities Cesa MAX Flame Retardant Additives KEY REQUIREMENTS WHY AVIENT?

Use of Non-GAAP Measures 4POLYONE CORPORATION INPUTS FORMULATION EXPERTISE SERVICE VALUE Base resins Additives Modifiers Pigments Expertise in Polymer Materials, Services and Solutions OEMs Brand Owners Processers Assemblers InVisiO SM Color Services IQ Design Labs LSS Customer First Specialty products & services What We Do Driving customer value 5POLYONE CORPORATION $0.13 $0.68 $0.82 $1.00 $1.31 $1.80 $1.96 $2.06 2009 2010 2011 2012 2013 2014 2015 2016* *Recast for DSS in discontinued operations PolyOne At a Glance Performance Products & Solutions 22% PolyOne Distribution 34% Specialty Engineered Materials 18% Color Additives and Inks 26% 2016 Revenue by Segment Adjusted Earnings per Share 2016 Revenue by Geography United States 60% Europe 15% Latin America 9% Canada 7% Asia 10% 6POLYONE CORPORATION 2% 43% 76% 0% 20% 40% 60% 80% 100% 2005 2010 3Q 2017 % o f O p e ra ti n g I n c o m e * *Operating Income excludes corporate charges and special items **LTM 3Q 2017 Specialty OI $5M $87M $275M** JV’s Performance Products & Solutions Specialty MixDistribution Mix Shift Highlights Specialty Transformation Distribution and Contract Manufacturing Businesses 7POLYONE CORPORATION 2014 2015 2016 2017 2014 2015 2016 2017 Driving Growth • Refreshed training curriculum for sales force • Upgraded capabilities to generate and capture new business leads • Expanded R&D resources to focus on key platforms 2014 2015 2016 2017 Investment in Commercial Resources Commercial Resource Additions* Total Sales CallsSales Opportunity Funnel (in billions) *Sales, Marketing & Technology headcount 8POLYONE CORPORATION *ROIC is defined as TTM adjusted OI after tax divided by the sum of average debt and equity less cash over a 5 quarter period Proof of Performance & 2020 Platinum Vision 20%+ 20%+ 12 - 14% 6.5 – 7.5% 15% Consistently Deliver Double Digit Annual EPS Growth 2006 YTD 2017 2020 “Where we were” “Where we are” Platinum Vision ROIC* 5.0% 13.8% Operating Income % of Sales Color, Additives & Inks 1.7% 16.4% Specialty Engineered Materials 1.1% 13.1% Performance Products & Solutions 5.5% 11.4% Distribution 2.6% 6.6% 9POLYONE CORPORATION $50 $116 $137 $0 $40 $80 $120 $160 $200 2012 2014 2016 2017 10.8% 11.3% 12.9% 13.8% 10.0% 11.0% 12.0% 13.0% 14.0% 15.0% 2012 2014 2016 3Q 2017 2020 Platinum Vision Free Cash Flow (in millions) ROIC* *ROIC is defined as TTM adjusted OI after tax divided by the sum of average debt and equity less cash over a 5 quarter period Free Cash Flow and Improving Returns 15.0% >$200 10POLYONE CORPORATION $0.16 $0.20 $0.24 $0.32 $0.40 $0.48 $0.54 $0.70 $- $0.10 $0.20 $0.30 $0.40 $0.50 $0.60 $0.70 $0.80 $0.90 $1.00 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 Annual Dividend 7 Consecutive Years of Increased Dividends 3-Year Dividend Plan  Announced 30% increase to dividend in October 2017, reflecting strong and sustainable cash flow as well as confidence in future earnings growth  Expect to increase annual dividend 60% or more cumulatively over next three years 11POLYONE CORPORATION $767M Returning Cash to Shareholders $0 $150 $300 $450 $600 $750 2011 2012 2013 2014 2015 2016 3Q 2017 Cumulative Share Repurchases (in millions)  Since 2011, we have returned over $950 million to shareholders  $192 million returned through dividends  $767 million returned through share repurchases  Have repurchased 20.8 million shares since early 2013 $767M 12POLYONE CORPORATION  Expanding our sales, marketing, and technical capabilities  Investing in operational and LSS initiatives  ~60 - 70% of capital expenditures fund growth initiatives Organic Growth Acquisitions Share Repurchases Dividends  Targets that expand our: • Specialty offerings • End market presence • Geographic breadth  Growth synergies  Adjacent material solutions  Repurchased 2.0 million shares YTD 2017  Repurchased 20.8 million shares since early 2013  6.5 million shares are available for repurchase under the current authorization  Increased annual dividend by 30% to $0.70 per share, representing the seventh consecutive year of dividend growth Free Cash Flow and Strong Balance Sheet Fund Investment / Shareholder Return 13POLYONE CORPORATION *Specialty Platform revenue from products introduced in last five years Vitality Index Progression* 12% 42% 2006 2016 Target ≥ 35% Innovation Drives Earnings Growth Innovation Pipeline Potential $20 $54 2006 2016 Research & Development Spending ($ millions) Phase 1 Frame Opportunity 12 Projects Phase 2 Build Business Case 10 Projects Phase 3 Prototype 21 Projects Phase 4 Scale-up & Test Market 19 Projects Phase 5 Commercial Launch 10 Projects $500 Million $1.4 Billion $700 Million Total Specialty Addressable Market of over $2.6 Billion 14POLYONE CORPORATION Key Innovation Growth Drivers Composites Barrier Additive Technology Fiber Colorants Flame Retardant Polymers  Increasing regulatory drive for halogen replacements  $400m addressable market  Drive to prevent oxygen, light and UV rays from affecting contents in PET packaging, extending shelf life  $200m addressable market  60% of world fiber consumption is synthetic, need to simplify manufacturing and eliminate waste  $300m addressable market  Polymer formulation and process engineering create a pipeline for next generation materials  Drive to replace aluminum and steel with plastics without compromising on strength 15POLYONE CORPORATION  Providing LSS services to small/medium sized customers  54% of associates trained in LSS, with over 125 active black belts  Have trained over 30 customers in LSS methodology  Providing training in Customer Centric Selling Skills with customers  Providing Industrial design and color services to small/medium sized customers  On time delivery above 95% Strengthening relationships: Customer First Through World-Class Service 16POLYONE CORPORATION  Addressable market exceeds $40 billion  Strong performance demonstrates that our strategy and execution are working  Megatrends and emerging opportunities align with strengths  Innovation and services provide differentiation, incremental pricing power and competitive advantage  Strategic reinvestment for growth while returning cash to shareholders  Strong and proven management team driving growth and performance Why Invest In PolyOne? The New PolyOne: A Specialty Growth Company 17POLYONE CORPORATION Segment Highlights 18POLYONE CORPORATION 1.7% 4.6% 5.1% 5.5% 7.2% 8.1% 9.7% 12.2% 14.7% 16.7% 16.0% 20%+ 16.4% 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 YTD 2017 2020 Operating Income % of Sales 2016 Revenue: $0.8 Billion Key End Markets (% of revenue) United States 45% Europe 33% Asia 15% Latin America 5% Canada 2% Platinum Vision At a Glance Color, Additives & Inks Packaging (30%) Industrial (15%) Wire & Cable (10%) Textiles (9%) Transportation (9%) 19POLYONE CORPORATION 1.1% 1.3% 3.4% 5.1% 9.6% 8.0% 8.6% 9.3% 12.1% 14.7% 14.3% 20%+ 13.1% 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 YTD 2017 2020 Operating Income % of Sales Platinum Vision At a Glance Specialty Engineered Materials 2016 Revenue: $0.6 Billion United States 51% Europe 27% Asia 20% Canada 2% Key End Markets (% of revenue) Consumer (19%) Transportation (19%) Electrical & Electronics (15%) Wire & Cable (15%) Healthcare (11%) 20POLYONE CORPORATION 5.5% 6.9% 3.8% 3.6% 5.5% 4.3% 6.3% 7.2% 7.7% 8.3% 12-14% 11.4% 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 YTD 2017 2020 Operating Income % of Sales 11.1% At a Glance Performance Products & Solutions 2016 Revenue: $0.7 Billion United States 78% Canada 16% Latin America 4% Asia 2% Platinum Vision Key End Markets (% of revenue) Building & Construction (30%) Transportation (18%) Wire & Cable (16%) Industrial (16%) 21POLYONE CORPORATION 4% 36% 2006 2016 At a Glance Distribution 2016 Revenue: $1.1 Billion Key Suppliers ROIC Transportation 24% Healthcare 22% Industrial 18% Consumer 15% Appliance 6% E & E 5% B & C 4% Packaging 4% W & C 2% 2.6% 3.0% 3.5% 4.0% 4.6% 5.6% 6.4% 5.9% 6.1% 6.6% 6.5 - 7.5% 6.4% 6.6% 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 YTD 2017 2020 Operating Income % of Sales *After-Tax ROIC http://www.polyone.com/Pages/VariationRoot.aspx http://www.polyone.com/Pages/VariationRoot.aspx 22POLYONE CORPORATION Target End Markets & Application Examples 23POLYONE CORPORATION Target End Markets… Healthcare Thermally Conductive Technologies Chemical Resistant Technologies Polymer Colorants Elastomeric Grips and Handles Structural Composites Antimicrobial Technologies Anti-Counterfeiting Technologies 24POLYONE CORPORATION Under-hood Components Target End Markets… Automotive Interior Structural Components Sound & Vibration Management Roof Systems Air Management Electronics and Cameras Lighting Fluid Handling Interior Trim Exterior Trim Braces & Brackets Fasteners Seals & Flaps 25POLYONE CORPORATION Target End Markets… Packaging Oxygen Scavenger Technologies Laser Marking Additives Antistatic Technologies UV Light Barrier Technologies Cap & Closure Colorants Process Optimization Technologies Antioxident Technologies Density Modified Technologies 26POLYONE CORPORATION Target End Markets… Consumer Thermally Conductive Components Polymer Colorants Elastomeric Grips and Handles Structural Composite Components 27POLYONE CORPORATION  Impart weight, sound and metallic finish to caps and closures for cosmetics and spirits applications  Elevate quality and prestige perceptions among high-end consumers  Eliminate time and cost associated with secondary operations and assembly Luxury Packaging GravitechTM Density Modified Polymers 28POLYONE CORPORATION Optimize Color Usage OnColorTM Super Concentrates  Eliminate costs by increasing pigment density  Enhance color performance without altering form and formulation  Increasing design capabilities by reducing weight and layer thickness 29POLYONE CORPORATION Combat Bacteria Formation WithStandTM Antimicrobial Technology  Inhibit microbial growth on polymer surfaces  Enhance value or products and devices  Highly versatile concentrate with the ability to be incorporated into a wide variety of products 30POLYONE CORPORATION Medical Device Housings Chemically Resistant Engineered Polymers  Durable, long-lasting products stand up to the most aggressive disinfectants  Minimize environmental stress cracking and discoloration  One of the broadest medically approved polymer and colorant portfolios 31POLYONE CORPORATION Color & Design Services  Greater control of color development and supply chain  Work across entire design process from concept to commercialization  Inspire creativity in the use of polymer materials, colors, and effects  Innovative brand differentiation  Faster development timelines 32POLYONE CORPORATION Outdoor Applications  Leading provider of high performance specialty materials for the recreational and sports & leisure industry  Well positioned across all segments to address market needs  Metal to Polymer Conversion  Lightweighting  Thermal Management  Impact Performance 33POLYONE CORPORATION  ColorMatrix Fiber Colorant Solutions  Proprietary advanced liquid color formulations and equipment enable greater efficiency and productivity  Eliminates aqueous dyeing and its associated wastewater treatment  Solid Color Concentrates  Extrusion-spun fibers colored via solid masterbatch Fiber Colorants 34POLYONE CORPORATION Smart Home Devices ResilienceTM Vinyl Solutions  High flame retardancy to meet strict UL standards  Greater processing and design flexibility  Specialized additives provide long term color stability  Diffusive lens materials improve light dispersion 1 Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except per share data) Senior management uses comparisons of adjusted net income from continuing operations attributable to PolyOne common shareholders, adjusted earnings per share (EPS) attributable to PolyOne common shareholders and adjusted earnings before interest, taxes, depreciation and amortization (EBITDA) to assess performance and allocate resources because senior management believes that these measures are useful in understanding current profitability levels and that current levels may serve as a base for future performance.