The settlement of strikes or lockouts involving the parties hereto shall lie entirely within the discretion of the party having the difficulty, and the above requirements for remedy of any force majeure with all reasonable dispatch shall not require the settlement of strikes or lockouts by acceding to the demands of the employees involved, when deemed inadvisable by the party having the labor difficulty. 11.

PP OVERMOLDING HARDNESS REGULATORY STERILIZATION CHARACTERISTICS Dynaflex™ G2706 28A USP Class VI, ISO 10993, Food contact EtO Soft translucent grade, grippy feel Dynaflex™ G2711 43A USP Class VI, ISO 10993, Food contact EtO Highly colorable solution, grippy feel, low compression set Versaflex™ CL2242 & CL2250 42A/ 50A USP Class VI, ISO 10993, US Food contact EtO Clear boilable grades; ABS, PC bondable Versaflex™ G2705 N 60A USP Class VI, ISO 10993, Food contact EtO/Steam High resilience, low compression set Versaflex™ HC3810 20A-90A USP Class VI, ISO 10993 EtO General purpose, unfilled ABS, PC OVERMOLDING HARDNESS REGULATORY STERILIZATION CHARACTERISTICS Versaflex™ OM1040 40A USP Class VI, ISO 10993 EtO Translucent Versaflex™ OM3060 60A USP Class VI, ISO 10993 EtO Clear VERSAFLEX™ CL AND DYNAFLEX™ TPEs OVERMOLDING FOR ERGONOMICS • Adds good tactile surface with soft-touch feel • Available in a variety of color effects and textures • Improves grip, cushion, and comfort • Enhances functional performance like sealing properties, vibration damping, oxygen barrier, and scratch and abrasion resistance • Reduces assembly costs, good processability • Offers excellent adhesion to a wide range of substrates • Glucometers • Medical tools overmolds • Injector pens • Analysis devices VERSALLOY™ HC & VERSAFLEX™ HC TPEs SEALING & RESEALING • Rubbery feel and soft touch • No coring, good puncture, and resealability in static stoppers • Meets low coefficient of friction requirements in dynamic seals • Low extractables • Suitable to overmold onto polyolefins • Sealing and resealing septum • Seals and sanitary gaskets • Syringe plungers and tips MATERIAL DESCRIPTION HARDNESS REGULATORY STERILIZATION CHARACTERISTICS Versalloy™ HC 9210-45N 45A USP Class VI EtO Good processability, HC 9210-55N 55A USP Class VI EtO Good processability, HC 9210-70N 70A USP Class VI EtO Good processability, HC 9220-43N 43A USP Class VI, ISO 10993-4/5 EtO Extrusion grade, high temperature resistance Versaflex™ HC 2110-35N 34A FDA, USP Class VI, ISO 10993 Autoclave EtO radiation Resealing, elevated comp set Versaflex™ HC 2110-57B 57A FDA, USP Class VI, ISO 10993 Autoclave EtO radiation Low stiction VERSAFLEX™ CL AND DYNAFLEX™ TPEs HIGH CLARITY GRADES WITHOUT PLASTICIZERS • Water clear grades formulated without phthalate plasticizers • Meets medical regulatory USP Class VI and ISO 10993-4,5 • Food contact and FDA compliant • Autoclave and radiation stable • Low extractable • High clarity (Haze 50 4.1, 100 4.5, 100 4, 70 6, 70 Tensile Modulus (MPa) 2200 2700 2600 2350 1820 1820 Flexural Strength (MPa) 80 90 104 86 68 68 Flexural Modulus (MPa) 2500 2700 2500 2300 1980 1590 HDT: 0.45, 1.8 (MPa) 110, 80 90, 80 100, 89 123, 100 123, 64 100, 70 UL-94 Rating @ 3.0 mm 5VA V-0 5VA V-0 HB V-0 UL-94 Rating @ 1.5 mm V-0 V-0 5VB V-0 HB V-0 UL-94 Rating @ 0.75 mm V-1 V-2 V-0 None None V-2 COMPETITIVE MATERIAL COMPARISON ENGINEERED POLYMER FORMULATIONS FOR HEALTHCARE TRILLIANT™ HC THERMOPLASTICS The family of Trilliant™ HC high-performance thermoplastics is formulated to meet the growing challenges of medical devices and equipment.

Obtain material written communications between the independent auditor and management, including, but not limited to, the management letter and schedule of unadjusted differences. 11.

Suzhou New District (SND) Building No. 13, 855 Zhujiang Road Suzhou, China, 215129 Phone: +51 266 900 333 Sales Office & Manufacturing Plant 79 Moo 11, Soi Kingthong, Kingkaew Rd.

Sustainability Report | 2021 10 Sustainability Report | 2021 11 Personal Values Integrity. Hatfield, Pennsylvania 11. Malmoe, Sweden 11.

In the building and construction industry, plastic provides an economical and energy efficient replacement for other traditional materials in piping applications, siding, flooring, insulation, windows and doors, as well as structural and interior or decorative uses. On October 11, 2011 and October 23, 2012, PolyOne’s Board of Directors increased the common shares repurchase authorization by an additional 5.3 million and 13.2 million, respectively. ITEM 11.

Figure 11 illustrates an example design of a runner keeper.

Investor Day POLYONE I N V E S T O R P R E S E N T A T I O N M A R C H 2 0 1 9 FORWARD LOOKING STATEMENTS PolyOne Corporation 2 USE OF NON-GAAP MEASURES PolyOne Corporation 3 V I S I O N PolyOne Corporation 4 To be the world’s premier provider of specialized polymer materials, services and solutions C O R E V A L U E S P E R S O N A L V A L U E S Honesty IntegrityRespect Operational Excellence Commercial Excellence Specialization Globalization Collaboration ExcellenceInnovation To be the world’s premier provider of specialized polymer materials, services and solutions S A F E T Y F I R S T PolyOne Corporation 5 Injuries per 100 Workers Spartech Acquisition 1.3 1.1 1.1 0.85 0.65 0.57 0.54 0.97 0.84 0.74 0.74 0.69 0.51 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 PolyOne Corporation 6 P O L Y O N E 2 0 1 8 R E V E N U E | $ 3 . 5 B I L L I O N United States 57% 16% Latin America Canada Distribution Performance Products & Solutions 19% Specialty Engineered Color Additives & Inks 29% Segment End Market Geography Building & Construction Electrical & Electronics 13% 2009 2010 2011 2012 2013 2014 2015 2016* 2017* 2018 $2.43 P R O O F O F P E R F O R M A N C E C O N S E C U T I V E Y E A R S PolyOne Corporation 7 9 $0.13 $0.68 $0.82 $1.00 $1.31 $1.80 $1.96 $2.06 $2.21 ROIC** 5.0% 14.1% Operating Income % of Sales Color, Additives & Inks 1.7% 15.1% Specialty Engineered Materials 1.1% 11.2% Performance Products & Solutions 4.3% 10.0% Distribution 2.6% 5.6% A D J U S T E D E P S E X P A N S I O N S U S T A I N A B L E P A T H T O D O U B L E - D I G I T E P S G R O W T H PolyOne Corporation 8 P E O P L E P R O D U C T S P L A N E T P E R F O R M A N C E Double digit annual EPS growth strategic acquisitions Innovate 600K-1M commercial resources 5-7% Double acquired Lean Six Sigma commercial excellence 531 710 130 164 504 663 R&D / Technical Marketing Sales PolyOne Corporation 9 Increased commercial headcount + 34% + 26% + 32% I N V E S T M E N T I N COMMERCIAL RESOURCES D R I V I N G G R O W T H Sustained revenue increases led by organic business $2.9 $2.9 $3.2 $3.5 2015 2016 2017 2018 Total + 9% Organic + 5% Revenue in billions of $ Total + 10% Organic + 7% Lead Specialists T H E E V O L V I N G C U S T O M E R R E L A T I O N S H I P PolyOne Corporation 10 Expanded Path Traditional Path Strategic Accounts/ Field Sales Business Development Customer Service Web and Social Media Inside Sales PolyOne Corporation 11 Investments in digital and dedicated inside sales to improve customer experience 110% increase in leads (from 6,000 to 12,700) driven by website, phone, and online chat EXPANDED PATH A DDI N G C U S T O M E R T O U C H P O I N T S 24 Inside sellers $11M $109M Inside sales/digital revenue A L I G N I N G W I T H T R E N D S F O R G R O W T H T R A N S P O R T A T I O N P A C K A G I N G H E A L T H C A R E C O N S U M E R PolyOne Corporation 12 Facilitate alternative energy solutions Light- weighting Reduce packaging materials Improve recyclability Reduce spread of infection I N N O V A T I O N PolyOne Corporation 13 Customization 55% M&A 30% Innovation Pipeline Innovation comes from Research & Development Spend Vitality Index $20 $56 Transformational Adjacent Core 3 H O R I Z O N S O F D E V E L O P M E N T PolyOne Corporation 14 Market Technical I N N O V A T I O N I N N O V A T I O N P I P E L I N E PolyOne Corporation 15 PrototypeFrame Opportunity Scale-up & Test Market Build Business Case Commercial Launch (since 2017) Phase 1 Phase 2 Phase 3 Phase 4 Phase 5 6 11 3 2 28 0 10 7 2 Breakthrough Platform Derivative F L A M E R E T A R D A N T P O L Y M E R S A D V A N C E D C O M P O S I T E S B A R R I E R M A T E R I A L S C O L O R A N T T E C H N O L O G I E S T H E R M O P L A S T I C E L A S T O M E R S I N N O V A T I O N S P O T L I G H T : C O M P O S I T E S PolyOne Corporation 16 C O M P O S I T E S R E F R E S H E R PolyOne Corporation 17 Fiber Polymer Composite S T R A T E G I C I N V E S T M E N T H I S T O R Y Thermoplastic Composites Long Fiber Reinforced Thermoplastics Continuous Fiber Thermosets Long Fiber Reinforced Thermoplastics Continuous Fiber Thermosets 2012 2015 20162009 2011 2018 PolyOne Corporation 2019 18 C O M P O S I T E S I N T R A N S P O R T A T I O N PolyOne Corporation 19 W A T E R C R A F TR A I L H E A V Y T R U C K F I B E R - L I N E H I G H L I G H T S PolyOne Corporation 20 $100M Customer Value Fiber-Line Fiber Processing Capabilities Polymer Formulation Capabilities P O L Y O N E A P P L I C A T I O N S I N F I B E R O P T I C C A B L E S PolyOne Corporation 21 F I B E R O P T I C A L G R O W T H D R I V E R S PolyOne Corporation 22 5G Networks 10x 8x 5G vs. 4G PolyOne Corporation 23 Safety Technology Geography Service FinancialPeople 8-10% with ability to double I N V E S T - T O - G R O W M & A S T R A T E G Y PolyOne Corporation 24 Capture sourcing synergies Cross-sell & blend technology 8-10% operating I N V E S T - T O - G R O W M & A P L A Y B O O K Protect customers Retain employees Implement LSS to drive efficiency improvements Innovate with combined portfolio Safety First!

V I S I O N PolyOne Corporation 4 To be the world’s premier provider of specialized polymer materials, services and solutions C O R E V A L U E S P E R S O N A L V A L U E S Honesty IntegrityRespect Operational Excellence Commercial Excellence Specialization Globalization Collaboration ExcellenceInnovation To be the world’s premier provider of specialized polymer materials, services and solutions S A F E T Y F I R S T PolyOne Corporation 5 Injuries per 100 Workers Spartech Acquisition 1.3 1.1 1.1 0.85 0.65 0.57 0.54 0.97 0.84 0.74 0.74 0.69 0.51 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 PolyOne Corporation 6 P O L Y O N E P R O F O R M A 2 0 1 8 R E V E N U E | $ 2 . 9 B I L L I O N * Segment End Market Geography 15% Healthcare 15% Wire & Cable Building & Electrical & Electronics Textiles Color Additives & Inks 34% Distribution 41% Specialty Engineered Materials 25% United States 54% Europe 20% Latin America 10% *Pro Forma excluding PP&S and including Fiber-Line P R O O F O F P E RFO RMAN CE C O N S E C U T I V E Y E A R S 10 A D J U S T E D E P S E X P A N S I O N $1.51 $1.61 PolyOne Corporation 7 S U S T A I N A B L E P A T H T O D O U B L E - D I G I T E P S G R O W T H PolyOne Corporation 8 P E O P L E P R O D U C T S P L A N E T P E R F O R M A N C E Double digit annual EPS growth Expand specialty portfolio with strategic acquisitions Innovate and develop new technologies and services Repurchase 600K-1M shares annually Increase commercial resources 5-7% annually Double acquired company margins Enhance efficiencies through Lean Six Sigma and commercial excellence 531 710130 164 504 663 R&D / Technical Marketing Sales PolyOne Corporation 9 Increased commercial headcount + 34% + 26% + 32% I N V E S T M E N T I N COMMERCIAL RESOURCES D R I V I N G G R O W T H Sustained revenue increases led by organic business $2.9 $2.9 $3.2 $3.5 2015 2016 2017 2018 Total + 9% Organic + 5% Revenue in billions of $ Total + 10% Organic + 7% Lead Specialists T H E E V O L V I N G C U S T O M E R R E L A T I O N S H I P PolyOne Corporation 10 Expanded Path Traditional Path Strategic Accounts/ Field Sales Business Development Customer Service Web and Social Media Inside Sales PolyOne Corporation 11 Investments in digital and dedicated inside sales to improve customer experience 110% increase in leads (from 6,000 to 12,700) driven by website, phone, and online chat EXPANDED PATH A D D I N G C U S T O M E R T O U C H P O I N T S 4 24 Inside sellers $11M $109M Inside sales/digital revenue A L I G N I N G W I T H T R E N D S F O R G R O W T H T R A N S P O R T A T I O N P A C K A G I N G H E A L T H C A R E C O N S U M E R PolyOne Corporation 12 Facilitate alternative energy solutions Light- weighting Reduce packaging materials Improve recyclability Reduce spread of infection I N N O V A T I O N PolyOne Corporation 13 Customization 55% M&A 30% Innovation Pipeline 15% Innovation comes from Research & Development Spend ($ millions) Vitality Index % of sales from products launched last 5 years 35% 2006 2018 $20 $56 2006 2018 Transformational Opportunity for Growth Through M&A Adjacent Opportunity for Growth Through New Product Pipeline Core Customization 3 H O R I Z O N S O F D E V E L O P M E N T PolyOne Corporation 14 Incremental development from existing base of technology New development adjacent to current New technology development outside of and with our current base Service adjacent markets and Create new markets, target new customer needs Service existing markets and Market Technical I N N O V A T I O N Non-Halogen Flame Retardants Barrier Technologies Fiber Colorants Advanced Composites Thermoplastic Elastomers Gordon Composites/ Polystrand – Composites GLS – Thermoplastic Elastomers ColorMatrix – Liquid Color & Additives PlastiComp Fiber-Line I N N O V A T I O N S P O T L I G H T : C O M P O S I T E S PolyOne Corporation 15 C O M P O S I T E S R E F R E S H E R PolyOne Corporation 16 Polymer Composite Strength Design Flexibility Continuous Fiber Thermoset Short Glass Fiber Thermoplastics Continuous Fiber Long Glass Fiber Thermoplastics S T R A T E G I C I N V E S T M E N T H I S T O R Y Acquired Polystrand Installed LFT production Avon Lake Acquired Gordon Thermoplastic Composites Long Fiber Reinforced Thermoplastics Continuous Fiber Thermosets Long Fiber Thermoplastic (LFT) Technology Installed LFT production Barbastro, Spain Acquired Glasforms Long Fiber Reinforced Thermoplastics Continuous Fiber Thermosets 2012 2015 20162009 2011 Acquired PlastiComp, specialty LFT producer 2018 PolyOne Corporation Acquired Fiber-Line, specialty fiber processor 17 C O M P O S I T E S I N T R A N S P O R T A T I O N PolyOne Corporation 18 W A T E R C R A F TR A I L H E A V Y T R U C K Bulkheads and Transoms Ceilings and Hatches Doors and Cabinetry Flooring Door Panels Side Walls Flooring & Side Panels Aerodynamic Fairings Seat and Bunk Reinforcements P O L Y O N E A P P L I C A T I O N S I N F I B E R O P T I C C A B L E S PolyOne Corporation 19 1. Fermium research marketing trip Forward Looking Statements USE OF �NON-GAAP�MEASURES Vision Safety First PolyOne�pro forma 2018 Revenue | $2.9 billion* Slide Number 7 Sustainable Path to Double-Digit EPS Growth Investment in Commercial Resources driving growth The Evolving Customer Relationship Slide Number 11 Aligning with trends for Growth Innovation 3 Horizons of Development Innovation Spotlight: Composites Composites Refresher Strategic Investment History COMPOSITES in Transportation PolyOne applications in Fiber optic cables Fiber optical growth drivers Invest-to-Grow M&A Strategy Invest-to-Grow M&A Playbook Invest-to-Grow Proof of performance Invest-to-Grow Driving the future Strong Pipeline�driven by fragmented Market Returning cash to shareholders�Over $1.2 Billion since 2011 Why Invest In PolyOne?

This is the case for Avient as well, but what further differentiates us, is that in 2020 our EPS also grew 11% vs. 2019. 2) Tax adjustments include the net tax benefit/(expense) from one-time income tax items, the set-up or reversal of uncertain tax position reserves and deferred income tax valuation allowance adjustments. 9 Attachment 4 Condensed Consolidated Balance Sheets (Unaudited) March 31, 2021 2020 ASSETS Current assets: Cash and cash equivalents $ 594.5 $ 649.5 Accounts receivable, net 642.2 516.6 Inventories, net 357.0 327.5 Other current assets 122.7 108.5 Total current assets 1,716.4 1,602.1 Property, net 675.5 694.9 Goodwill 1,281.9 1,308.1 Intangible assets, net 973.3 1,008.5 Operating lease assets, net 80.9 80.9 Other non-current assets 181.4 176.0 Total assets $ 4,909.4 $ 4,870.5 LIABILITIES AND SHAREHOLDERS' EQUITY Current liabilities: Short-term and current portion of long-term debt $ 18.8 $ 18.6 Accounts payable 529.6 471.7 Current operating lease obligations 24.3 25.1 Accrued expenses and other current liabilities 290.9 285.6 Total current liabilities 863.6 801.0 Non-current liabilities: Long-term debt 1,852.7 1,854.0 Pension and other post-retirement benefits 111.3 115.0 Non-current operating lease obligations 56.8 56.0 Other non-current liabilities 303.0 332.8 Total non-current liabilities 2,323.8 2,357.8 SHAREHOLDERS' EQUITY Avient shareholders’ equity 1,707.0 1,697.1 Noncontrolling interest 15.0 14.6 Total equity 1,722.0 1,711.7 Total liabilities and equity $ 4,909.4 $ 4,870.5 10 Attachment 5 Condensed Consolidated Statements of Cash Flows (Unaudited) March 31, 2021 2020 Operating Activities Net income $ 79.7 $ 32.8 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 36.6 19.9 Accelerated depreciation and amortization 0.5 — Share-based compensation expense 2.7 2.1 Changes in assets and liabilities, net of the effect of acquisitions: Increase in accounts receivable (137.6) (56.9) Increase in inventories (35.1) (13.0) Increase in accounts payable 67.3 44.6 Decrease in pension and other post-retirement benefits (7.1) (3.2) Increase in post-acquisition earnout liabilities — 1.0 Decrease in accrued expenses and other assets and liabilities, net (3.4) (19.1) Payment of post-acquisition date earnout liability — (21.0) Net cash provided (used) by operating activities 3.6 (12.8) Investing activities Capital expenditures (16.5) (11.1) Net proceeds from divestiture — 7.1 Net proceeds (used) provided by other assets (2.0) 5.2 Net cash (used) provided by investing activities (18.5) 1.2 Financing activities Purchase of common shares for treasury (4.2) (13.6) Cash dividends paid (19.5) (15.6) Repayment of long-term debt (2.3) (2.0) Payments of withholding tax on share awards (3.1) (1.3) Equity offering proceeds, net of underwriting discount and issuance costs — 496.3 Payment of acquisition date earnout liability — (32.9) Net cash (used) provided by financing activities (29.1) 430.9 Effect of exchange rate changes on cash (11.0) (3.8) (Decrease) increase in cash and cash equivalents (55.0) 415.5 Cash and cash equivalents at beginning of year 649.5 864.7 Cash and cash equivalents at end of period $ 594.5 $ 1,280.2 11 Attachment 6 Business Segment Operations (Unaudited) Operating income and earnings before interest, taxes, depreciation and amortization (EBITDA) at the segment level does not include: special items as defined in Attachment 3; corporate general and administration costs that are not allocated to segments; intersegment sales and profit eliminations; share-based compensation costs; and certain other items that are not included in the measure of segment profit and loss that is reported to and reviewed by the chief operating decision maker.