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X Trilliant HC6600-0021 Metallic Blue

Radiopaque translucent catheters: NEU™ View Radiopaque Translucent Solutions offer catheter producers an enhanced technology that provides excellent visibility, both optically and under X-ray, boosting clinician confidence and patient comfort.

GUANGZHOU, China – May 21, 2019 – At CHINAPLAS 2019 this week, PolyOne is sponsoring Design X Innovation, three events co-located at the fairgrounds that offer inspiration for product designs.

We also provide custom-formulated liquid systems that meet a variety of customer needs and chemistries, including vinyl, natural rubber and latex, polyurethane and silicone. Because of the nature of our business, we do not believe that our backlog is a meaningful indicator of the level of our present or future business. Natural gas and raw materials costs represent a substantial part of our manufacturing energy costs.

Avient 2011, 2018 and 2021 multiples reflect trailing 12 months EBITDA at December 31. 28 EV / 2023E EBITDA 6.5 8.5 11.0 8.9 12.0 11.9 10.9 9.9 8.2 16.3 13.8 11.9 9.6 9.5 9.5 9.2 7.7 20 11 20 18 20 21 O ct 20 23 AV Y R PM PP G KW R FU L EC L H XL SC L AS H FM C C E H U N EM N Avient Historic Multiple Avient Specialty Formulators Other Specialty / Chemical Companies AP P E N DI X 30 Performance Additives 16% Pigments 12% TiO2 10% Dyestuffs 2% Polyethylene 11% Nylon 6% Polypropylene 5% Styrenic Block Copolymer 5% Other Raw Materials 33% ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials 2022 pro forma results for the acquisition of Avient Protective Materials RAW MATERIAL BASKET SEGMENT DATA U.S. & Canada 40% EMEA 37% Asia 18% Latin America 5% 2022 PRO FORMA SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS Consumer 20% Packaging 24% Industrial 15% Building and Construction 10% Telecommunications 4% Energy 4% Defense 6% END MARKET REVENUE $2,355M $402M $1,300M $272M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $592M$3,653M (1) Transportation 9% Healthcare 8% 32 (1) Total company sales and adjusted EBITDA of $3,653M and $592M, respectively, include intercompany sales eliminations and corporate costs 2022 REVENUE | $2 .4 BILLION US & Canada 34% EMEA 38% Asia 20% Latin America 8% END MARKET REGION 33 Packaging 34% Consumer 21% Healthcare 8% Industrial 15% Transportation 8% Building & Construction 11% Telecommunications 1% Energy 2% COLOR, ADDITIVES & INKS 2022 PRO FORMA REVENUE | $1 .3 BILLION US & Canada 52% EMEA 35% Asia 13% 34 Packaging 5% Consumer 19% Healthcare 8%Industrial 16% Transportation 10% Telecommunications 10% Energy 9% Defense 15% Building & Construction 8% END MARKET REGION SPECIALTY ENGINEERED MATERIALS Packaging 32% Consumer 27% Healthcare 8% Industrial 14% Building & Construction 5% Telecommunications 3% Energy 1% Defense 1% Asia (18% of sales) Transportation 9% 2022 PROFORMA AVIENT REGIONAL SALES Packaging 27% Consumer 14% Healthcare 5% Industrial 17% Building & Construction 10% Energy 5% Defense 8% EMEA (37% of sales)Transportation 11% Packaging 13% Consumer 24% Healthcare 12% Industrial 15% Building & Construction 13% Energy 5% Defense 5% US & Canada (40% of sales) Transportation 7% Packaging 56% Consumer 23% Healthcare 4% Industrial 7% Building & Construction 4% Telecommunications 1% LATAM (5% of sales) Transportation 5% Telecommunications 3% Telecommunications 6% 35 BY END MARKET Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except for per share data) Senior management uses comparisons of adjusted net income from continuing operations attributable to Avient shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results. Senior management believes the measures described above are useful to investors because they allow for comparison to Avient's performance in prior periods without the effect of items that, by their nature, tend to obscure Avient's operating results due to the potential variability across periods based on timing, frequency and magnitude.

In the event that the NEU determines that it is the root cause of the Customer complaint, a corrective action will be issued, and preventive actions will be developed to address the root cause. 10.0 MANAGEMENT OF SUPPLIERS 10.1 NEU will maintain and ensure oversight and monitoring of applicable suppliers in accordance with the requirements of ISO 13485 Quality Management System. 11.0 TRACABILITY, RECORDS & RETENTION 11.1 NEU is responsible for establishing and maintaining controlled documentation of product and raw material component traceability during all stages of production and shipment. 11.2 An electronic record of the manufacturing conditions and raw materials (vendor ID and lot number) used to manufacture each batch is retained and preserved for a period of at least 7 years from the manufacture date or as specified by applicable Regulatory Requirements. 11.3 An electronic record of the Customer purchase order and NEU sales order confirmation will be retained and for a period of at least 7 years from order acceptance date. 11.4 A representative sample of the product manufactured will be retained for a period of at least 1 year from manufacture date. 12.0 EXPIRATION 12.1 NEU’s obligations contained in this Quality Commitment will automatically expire if the Customer does not purchase product from NEU for a period of one year.

Because of the nature of our business, we do not believe that our backlog is a meaningful indicator of the level of our present or future business. Natural gas and raw materials costs represent a substantial part of our manufacturing costs. Richardson, Executive Vice President and Chief Financial Officer** 101 .INS XBRL Instance Document** 101 .SCH XBRL Taxonomy Extension Schema Document** 101 .CAL XBRL Taxonomy Extension Calculation Linkbase Document** 101 .LAB XBRL Taxonomy Extension Label Linkbase Document** 101 .PRE XBRL Taxonomy Extension Presentation Linkbase Document** 101 .DEF XBRL Taxonomy Definition Linkbase Document** + Indicates management contract or compensatory plan, contract or arrangement in which one or more directors or executive officers of the Registrant may be participants † The exhibits and schedules have been omitted pursuant to Item 601(b)(2) of Regulation S-K and will be provided to the Securities and Exchange Commission upon request. ** Filed herewith.

Polymers are a class of organic materials that are generally produced by converting natural gas or crude oil derivatives into monomers, such as ethylene, propylene, and styrene. We also provide custom-formulated liquid systems that meet a variety of customer needs and chemistries, including polyester, vinyl, natural rubber and latex, polyurethane and silicone. Beggs, Senior Vice President and Chief Financial Officer 101 .INS** Inline XBRL Instance Document 101 .SCH** Inline XBRL Taxonomy Extension Schema Document 101 .CAL** Inline XBRL Taxonomy Extension Calculation Linkbase Document 101 .LAB** Inline XBRL Taxonomy Extension Label Linkbase Document 101 .PRE** Inline XBRL Taxonomy Extension Presentation Linkbase Document 101 .DEF** Inline XBRL Taxonomy Definition Linkbase Document 104 Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101) + Indicates management contract or compensatory plan, contract or arrangement in which one or more directors or executive officers of the Registrant may be participants † Certain exhibits and schedules have been omitted pursuant to Item 601(a)(5) of Regulation S-K and will be provided to the Securities and Exchange Commission upon request. ** Filed herewith.

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