You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the Securities and Exchange Commission. PolyOne Corporation Page 3 Use of Non-GAAP Measures  This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. S&P 500 PolyOne Corporation Page 9 2006 Q1 2015 2020 “Where we were” “Where we are” Platinum Vision 1) Operating Income % Specialty: Global Color, Additives & Inks 1.7% 16.2% 20%+ Global Specialty Engineered Materials 1.1% 16.3% 20%+ Designed Structures & Solutions 1.4% (2012) 2.7% 12 – 14% Performance Products & Solutions 5.5% 6.5% 10 – 12% Distribution 2.6% 5.9% 6.5 – 7.5% 2) Specialty Platform % of Operating Income 6.0% 69% 80%+ 3) ROIC 5.0% 11.4% 15% 4) Adjusted EPS Growth N/A 22 Consecutive Quarters of EPS Growth Double Digit Expansion Proof of Performance & 2020 Goals PolyOne Corporation Page 10 Platinum Vision: Pathway to Accelerated Growth Organic Sales Growth Margin Expansion Share Repurchases Acquisitions PolyOne Corporation Page 11 Innovation Drives Earnings Growth *Percentage of Specialty Platform revenue from products introduced in last five years $20 $53 2006 2014 Research & Development Spending ($ millions) Specialty Platform Vitality Index Progression* 14% 27% 2006 2014 Specialty Platform Gross Margin % 20% 44% 2006 2014 Specialty Vitality Index Target ≥ 35% PolyOne Corporation Page 12 Megatrends Aligned with Key End Markets Decreasing Dependence on Fossil Fuels Protecting the Environment Improving Health and Wellness Megatrend End Markets Globalizing and Localizing Health & Wellness Transportation Packaging Consumer PolyOne Corporation Page 13 Prototype Frame Opportunity Scale-up & Test Market Build Business Case Commercial Launch Phase 1 Phase 2 Phase 3 Phase 4 Phase 5 6 9 7 3 5 12 5 3 2 8 4 2 4 3 1 Breakthrough Platform Derivative A Rich Pipeline of Opportunity Number of Projects 14 8 18 12 22 74 Addressable Market ($ millions) $700 $600 $600 $1,900 PolyOne Corporation Page 14 60% 98% 20% 30% 40% 50% 60% 70% 80% 90% 100% 2008 Q1 2015 Pension Funding** As of March 31, 2015 Debt Maturities & Pension Funding Net Debt / EBITDA* = 2.1x $49 $317 $600 $0 $100 $200 $300 $400 $500 $600 $700 $800 2015 2020 2023 Debt Maturities As of March 31, 2015 ($ millions) Coupon Rate: 7.500% 7.375% 5.250% ** includes US-qualified pension plans only *TTM 3/31/2015 PolyOne Corporation Page 15 Free Cash Flow and Strong Balance Sheet Fund Investment / Shareholder Return  Expanding our sales, marketing, and technical capabilities  Investing in operational and LSS initiatives  ~75% of capital expenditures fund growth initiatives Organic Growth Acquisitions Share Repurchases Dividends $0.16 $0.20 $0.24 $0.32 $0.40 $0.10 $0.20 $0.30 $0.40 $0.50 2011 2012 2013 2014 2015 Annual Dividend  Targets that expand our: • Specialty offerings • End market presence • Geographic breadth  Synergy opportunities  Adjacent material solutions  Repurchased over 500k shares in Q1 2015  Repurchased 11.8 million shares since early 2013  8.2 million shares are available for repurchase under the current authorization PolyOne Corporation Page 16 PolyOne Core Values Innovation Collaboration Excellence PolyOne Corporation Page 17 The New PolyOne: A Specialty Growth Company Why Invest In PolyOne?

You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the Securities and Exchange Commission. Deliver cumulative annual revenue growth from sustainable solutions portfolio of 8-12% Assess top 90% of supplier spend for alignment with Avient Sustainability objectives. Whether an additional line at an existing manufacturing plant, or a new facility in a growing region, we ramp-up quickly and cost-efficiently. 31 Capex / Revenue 2021E (%) AVIENT IS ASSET LIGHT Avient Specialty Other 3 3 3 4 3 3 5 5 5 6 nt nt ( xc l.

That is why Avient’s suite of services also includes local technical support with consultation on process development, mold design/construction, material training, troubleshooting, and continuous improvement. Identify Equipment Needs • Material handling and drying equipment needs and sizing • Primary processing equipment improvements • Secondary operations equipment improvements Optimize Processes • Material preparation • Primary process development • Secondary operations process development • Tooling debug/optimization Troubleshooting • Failure analysis/issue resolution • Process/mold support • Equipment review Training • Polymers fundamentals training • Polymer types training Avient’s unique combination of materials, design expertise and technical services enables us to conquer challenges and unlock the potential of innovation in meaningful and dynamic ways for customers around the world.

That is why Avient’s suite of services also includes local technical support with consultation on process development, mold design/construction, material training, troubleshooting, and continuous improvement. Identify Equipment Needs • Material handling and drying equipment needs and sizing • Primary processing equipment improvements • Secondary operations equipment improvements Optimize Processes • Material preparation • Primary process development • Secondary operations process development • Tooling debug/optimization Troubleshooting • Failure analysis/issue resolution • Process/mold support • Equipment review Training • Polymers fundamentals training • Polymer types training Avient’s unique combination of materials, design expertise and technical services enables us to conquer challenges and unlock the potential of innovation in meaningful and dynamic ways for customers around the world.

Approved Corporate : Template/Form Document #: DOC-01879 Revision: 8 Document Owners: Brian Hoar Effective Date: May 13, 2022 Title: QF-02 Quality Standard Response Page 3 of 19 Only the electronic version of this document in ETQ is the controlled version of the document. Annually, with exception of central certificates—at minimum every 3 years. Batch histories are digitally retained indefinitely.

Footprint (LxW cm) 86 x 71 98 x 38 60 x 35 55 x 30 86 x 80 Typical max. throughput (kg/hr) 1000 625 250 50 120 Max. metering rate (cc/s) 10 10 10 1.8 1.25 Continuous use Yes Yes No No Yes Transfer pumps PC/Peri Peri NA NA PC Metering pumps PC/Peri PC/Peri PC/Peri Peri PC Interchangeable cassette Yes Yes Yes No Yes Typical PlanetPak delivery unit 25L 25L NA 1L 25L Other delivery packaging IBC/LN Drum/LN LN LN NA PC PUMP RATE (cc/rev) 0.09 0.28 0.87 2.6 5.2 RECOMMENDED OUTPUT RANGE (g/min) 0.9 to 9 2.8 to 28 8.7 to 87 26 to 260 53 to 520 PC PUMP MAX (g/min) 18 56 174 520 1040 CONTROLLER CMG 3000 FlexG CMG 5000 CMG 6000 Application Injection Molding Extrusion Melt Injection Volumetric/gravimetric V V (weight data) V/G V/G Data export/network No Yes Yes Yes Touch screen No Yes Yes Yes Multiple log-in levels No No Yes Yes FlexCart Model S Optional Yes No Mini Model S No Yes No Micro Yes No Yes No Nano Yes No No No Melt Injection No No No Yes Choosing a progressive cavity pump for transfer or metering Choosing the controller MAKING THE RIGHT CHOICE Here are the options which should be considered for an informed choice of combinations: (Note: LN = 3, 5 & 10L molded container PC = Progressing Cavity Pump Peri = Peristaltic Pump) Avient can provide support and assistance on every aspect of liquid color and additive processing.

X GT-32450-0001B-3 XDW2C AQUARIUS DIGITAL WHITE PP FR 8-6 LMS-1000

STAN-TONE VC-35232 TORQUE GRAY PP FR 8-6 LMS-1000

Our onsite technical support team is here to help with process development, mold design suggestions, material training, troubleshooting, and continuous improvement. Let us walk you through: Optimizing the LFT Molding Processes • Ensuring proper drying and preparation of the material (review of drying equipment) • Processing guidance for the specific grade (temperature and pressure suggestions) • Primary process development (including runner & gate geometry) • Secondary operation process development • Tooling debugging/optimization, especially if the injection mold is new Troubleshooting • Failure analysis/issue resolution (including pyrolysis/burn-off reviews to study internal fiber structure and length) • Process/mold support to perfect finished goods • Equipment review Training • Polymers fundamentals training • Design guidance for LFT IN-HOUSE PROTOTYPING SUPPORT Our 55,000 square foot Application Development Center is most often leveraged for new program prototyping and R&D trials.

with the seat at Pobřežní 620/3, 18600 Prague, Id. Czech Republic Branch, with the seat at Pobřežní 620/3, 18600 Prague, Id. If the parties cannot agree upon and implement such changes within sixty (60) days after such notice, Seller shall thereupon have a right to terminate this contract forthwith by written notice to Buyer. 8.