After grabbing more than 8% of the market within six months of the release of its flagship vehicle, the engineers at a game-changing electric car manufacturer went back to work fine-tuning the details.

IR Presentation - Q4 2016v13 PolyOne Investor �Presentation�March 2017 Forward-Looking Statements Use of Non-GAAP Measures What We Do At a Glance Returning Cash to Shareholders Slide Number 7 Proof of Performance & 2020 Platinum Vision Ours is Not a Cost Cutting Story Innovation Drives Earnings Growth Primary Industries Served Slide Number 12 Slide Number 13 Slide Number 14 Slide Number 15 Free Cash Flow and Strong Balance Sheet �Fund Investment / Shareholder Return Why Invest In PolyOne?

The sheet producer began experimenting with material changes in-house, but struggled to achieve consistency of release. This additive technology has proven effective for use in other applications such as a mold release during thermoforming, helping to reduce processing interruptions. Avient offers OnCap™ Denesting additive solutions to enable effective package separation and improve manufacturing operations such as mold release during thermoforming and packaging pick and place operations.

Buyer acknowledges that Seller has furnished to Buyer Safety Data Sheets, which include warnings together with safety and health information concerning the Product and/or the containers for such Product. No statement of agreement, oral or written, made before or at the formation of the contract shall vary or modify the written terms hereof, and neither party shall claim any amendment, modification or release from any provision hereof unless such change occurs in a writing signed by the other party and specifically identifying it as an amendment to the contract. No modification or addition to the contract shall occur by the acknowledgment or acceptance by Seller of a purchase order, acknowledgment, release or other form submitted by Buyer containing additional or different terms or conditions. 22.

Buyer acknowledges that Seller has furnished to Buyer Safety Data Sheets, which include warnings together with safety and health information 15. The obligation to “indemnify and hold harmless” included in this section shall mean the obligation of Buyer to cover any damage, costs and expenses suffered or incurred by Seller and pay the relevant amounts to Seller as well as to release Seller from any liability towards third parties (Article 392 of the Polish Civil Code). No modification or addition to the contract shall occur by the acknowledgment or acceptance by Seller of a purchase order, acknowledgment, release or other form submitted by Buyer containing additional or different terms or conditions. 19.

CEO, Industry Leader 8% more sales calls annually 10% annual expansion of sales funnel, including advances in barrier additives and fiber colorants 12-15% compound annual operating income growth 16-18% operating margins PolyOne Corporation 93 M&A REVIEW J O E L R A T H B U N PolyOne Corporation 94 TPE O V E R A D E C A D E O F S U C C E S S F U L S P E C I A L T Y A C Q U I S I T I O N S PolyOne Corporation 95 PolyOne Corporation 96 Safety Technology Geography Service FinancialPeople Low EH&S risk profile New and complementary technologies Leverage our global footprint Strong customer relationships Foundational operating margins of 8-10% with ability to double Motivated team with a specialty culture I N V E S T - T O - G R O W S T R A T E G Y PolyOne Corporation 97 Capture sourcing synergies Cross-sell & blend technology 8-10% operating margins I N V E S T - T O - G R O W P L A Y B O O K Protect Retain employees Implement LSS to drive efficiency improvements Innovate with combined portfolio Safety First! Investor Day Deck - Web Investor Day Forward �Looking �Statements Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: USE OF �NON-GAAP�MEASURES Investor Day Agenda May 10, 2018 The Leaders Behind the Team Introduction Historic Past Sustainability AT PolyOne Safety First the PolyOne Academy Sustainably Impacting diverse End Markets Products and Portfolio Optimization OUR PLANET Sustainability AT PolyOne Adjusted EPS Expansion Early years defined by Specialty �mix improvement Commodity Pruning �Held Organic Sales Flat Investment in Commercial Resources Driving Results Sustainable Path to Double-Digit EPS Growth Raising the Bar�ROIC drives shareholder return Commercial Excellence STRATEGIC INVESTMENT IN 3 KEY AREAS Key Commercial Investments New Resources Fueling the Future Aligning with trends for Growth Innovation 3 Horizons of Development 3 Horizons of Development 3 Horizons of Development Innovation Pipeline Innovation Drives Earnings Growth IQ DESIGN LABS 3D Printing�Bringing New ideas to life LSS CUSTOMER FIRST The Evolving Customer Relationship Slide Number 37 Inspired future Innovating with PolyOne PolyOne Distribution DISTRIBUTION Service is our business Service is our business Key Commercial Investments Growth through Inside Sales Growth through Multiple Sales Channels New Resources Fueling the Future Inspired future Specialty Engineered Materials Specialty Engineered Materials Specialty Engineered Materials Capitalizing on the global market STRATEGIC INVESTMENT IN 3 KEY AREAS Key Commercial Investments New Resources Fueling the Future growth Through Service Innovation Spotlight: Composites Composites Refresher Strategic Investment History COMPOSITES in Transportation Slide Number 61 Inspired future Performance Products �& Solutions Performance Products & Solutions Performance Products & Solutions STRATEGIC INVESTMENT IN 3 KEY AREAS Key Commercial Investments New Resources Fueling the Future Growth Through Service Growth Through Service Innovation Spotlight: �Flame Retardant�Polymers FLAME RETARDANT �DRIVERS Flame Retardant Performance Spectrum LED Solutions Inspired future Color Additives�& Inks COLOR, ADDITIVES & INKS Color, Additives & Inks Capitalizing on the global market STRATEGIC INVESTMENT IN 3 KEY AREAS Key Commercial Investments New Resources Fueling the Future Growth Through Service Innovation Spotlight: Additive & Colorant�Technologies Barrier Technologies Fiber Colorants Strategic Investment History Slide Number 88 Slide Number 89 COLORMATRIX SELECT™ Enabling the Customer Slide Number 92 Inspired future M&A Review Over a decade of successful specialty acquisitions Invest-to-Grow Strategy Invest-to-Grow Playbook Invest-to-Grow Proof of performance Invest-to-Grow Proof of performance Invest-to-Grow Driving the future Invest-to-Grow Driving the future Strong Pipeline�driven by fragmented Market Summary Financial Review Adjusted EPS Expansion Strategic cash deployment Proof of Performance �Expanding Margins & ROIC Investment in Commercial Resources Driving Results Sustainable Path to Double-Digit EPS Growth ROIC drives shareholder return ROIC drives shareholder return Conclusion Investor Presentation - May 2018 Non-GAAP Investor Presentation - March 2018

The company also announced the release of its latest Sustainability Report, now available at www.avient.com/sustainability. Registration information to access the Sustainability Day event will be provided in a news release in advance of the event. A recording of the webcast and the slide presentation will be available at avient.com/investors/events-presentations immediately following the conference call and will be accessible for one year.

Sustainability Report Release The company also announced the release of its latest Sustainability Report, now available at www.avient.com/sustainability. A recording of the webcast and the slide presentation will be available at avient.com/investors/events-presentations immediately following the conference call and will be accessible for one year.

These new materials meet or exceed OEM airbag safety requirements for instrument panels and provides up to 15% faster cycle times and 35% lower scrap rates, when compared to standard materials. Marking alternative: OnColor™ FastMark™ additives – enabling parts such as signal stalks and trunk/hood release handles to be permanently laser etched with images, symbols and words

At room temperature, the so-called glass transition temperature causes a permanent rotation of the macromolecules, ensuring a controlled release of the various insecticides to the fiber surface and, therefore, permanent and consistent protection. Human Health & Safety