Buyer will sign a reasonable confidentiality agreement upon request and ensure its employees are bound by at least equally restrictive confidentiality obligations as those stated herein.

Buyer will sign a reasonable confidentiality agreement upon request and ensure its employees are bound by at least equally restrictive confidentiality obligations as those stated herein.

During our journey, and as a result of our success along the way, we have generated exceptional value for our shareholders. Targeting Future Growth Our transformational journey has progressed exceptionally well.

In 2021, we made incredible strides in each area, and I’m proud of the world-class sustainable organization we have created to take care of and value our employees and customers, preserve our planet’s precious natural resources and deliver for all stakeholders. Other initiatives, including Mentoring at Avient and campus partnerships, are vital for progress in our diversity and inclusion journey.

This upcoming transition represents a multi-year plan to develop and prepare the next leader who will continue PolyOne’s journey as a transformative, innovative and global specialty company. The journey was not easy.

We now have what we believe to be the strongest portfolio offering in the history of the company with 100% of sales now being generated from specialty applications. 2022 Company highlights include: • Completed the acquisition of the DSM Protective Materials business ("APM"), including the Dyneema® brand, the World's Strongest Fiber™ (the "APM Acquisition"); • Completed the sale of our Distribution business for $950.0 million; • Full-year GAAP EPS from continuing operations was $0.90 in 2022, compared to $1.65 in 2021; • Increased pro forma adjusted EPS from continuing operations from $3.02 in 2021 (pro forma for the APM Acquisition and the sale of our Distribution business) to $3.04(1) in 2022; • Strong working capital performance to finish the year resulted in cash flow from operations of approximately $400 million for 2022; • Generated approximately $290 million(1) of free cash flow, paid down $950 million of debt and ended the year with a net debt-to-EBITDA leverage ratio of 2.9x(1); • Increased our dividend on an annualized basis by 4% to $0.99; the 12th consecutive year of annual increase; • Our injury incident rate was 0.51 (per 100 full-time workers per year) compared to the industry average of 3.40 in 2021; • Certified again as an ACC Responsible Care® organization for outstanding environmental, health, safety and security performance; and • Continued our journey of improving our culture: received our 4th certification as a Great Place to Work® by the Great Place to Work Institute, and the highest scores in the Company's history. (1) Adjusted EPS, Adjusted EPS pro forma for the APM Acquisition and the sale of our Distribution business, free cash flow, and net debt-to-EBITDA leverage ratio are financial measures that are not presented in accordance with generally accepted accounting principles ("GAAP"). Other initiatives, including Mentoring at Avient and campus partnerships, are vital for progress in our diversity and inclusion journey. We now have what we believe to be the COMPENSATION DISCUSSION AND ANALYSIS 60 PROXY STATEMENT 2023 | Annual Meeting of Shareholders strongest portfolio offering in the history of the company with 100% of sales now being generated from specialty applications. 2022 Company performance highlights include: • Completed the acquisition of the DSM Protective Materials business ("APM"), including the Dyneema® brand, the World's Strongest Fiber™ (the "APM Acquisition"); • Completed the sale of our Distribution business for $950.0 million; • Full-year GAAP EPS from continuing operations was $0.90 in 2022, compared to $1.65 in 2021; • Increased pro forma adjusted EPS from continuing operations from $3.02 in 2021 (pro forma for the APM Acquisition and the sale of our Distribution business) to $3.04(1) in 2022; • Strong working capital performance to finish the year resulted in cash flow from operations of approximately $400 million for 2022; • Generated approximately $290 million(1) of free cash flow, paid down $950 million of debt and ended the year with a net debt-to-EBITDA leverage ratio of 2.9x(1); • Increased our dividend on an annualized basis by 4% to $0.99; the 12th consecutive year of annual increase; • Our injury incident rate was 0.51 (per 100 full-time workers per year) compared to the industry average of 3.40 in 2021; • Certified again as an ACC Responsible Care® organization for outstanding environmental, health, safety and security performance; and • Continued our journey of improving our culture: received our 4th certification as a Great Place to Work® by the Great Place to Work Institute, and the highest scores in the Company's history. (1) Adjusted EPS, Adjusted EPS pro forma for the APM Acquisition and the sale of our Distribution business, free cash flow, and net debt-to-EBITDA leverage ratio are financial measures that are not presented in accordance with GAAP.

To help us improve and progress on our journey, we recently sought and obtained the American Chemistry Council’s Responsible Care certification.

It’s a similar development journey that our longer- tenured sellers have benefitted from in the past.

Climate change (5.11.6.1) Environmental requirement Select from: ☑ Environmental disclosure through a non-public platform (5.11.6.2) Mechanisms for monitoring compliance with this environmental requirement Select all that apply ☑ Supplier scorecard or rating (5.11.6.3) % tier 1 suppliers by procurement spend required to comply with this environmental requirement Select from: ☑ 76-99% (5.11.6.4) % tier 1 suppliers by procurement spend in compliance with this environmental requirement Select from: 133 ☑ 51-75% (5.11.6.7) % tier 1 supplier-related scope 3 emissions attributable to the suppliers required to comply with this environmental requirement Select from: ☑ 76-99% (5.11.6.8) % tier 1 supplier-related scope 3 emissions attributable to the suppliers in compliance with this environmental requirement Select from: ☑ 76-99% (5.11.6.9) Response to supplier non-compliance with this environmental requirement Select from: ☑ Retain and engage (5.11.6.10) % of non-compliant suppliers engaged Select from: ☑ 1-25% (5.11.6.11) Procedures to engage non-compliant suppliers Select all that apply ☑ Developing quantifiable, time-bound targets and milestones to bring suppliers back into compliance (5.11.6.12) Comment No additional comments Climate change 134 (5.11.6.1) Environmental requirement Select from: ☑ Other, please specify :Complying with regulatory requirements (5.11.6.2) Mechanisms for monitoring compliance with this environmental requirement Select all that apply ☑ Supplier scorecard or rating (5.11.6.3) % tier 1 suppliers by procurement spend required to comply with this environmental requirement Select from: ☑ 100% (5.11.6.4) % tier 1 suppliers by procurement spend in compliance with this environmental requirement Select from: ☑ 100% (5.11.6.7) % tier 1 supplier-related scope 3 emissions attributable to the suppliers required to comply with this environmental requirement Select from: ☑ 100% (5.11.6.8) % tier 1 supplier-related scope 3 emissions attributable to the suppliers in compliance with this environmental requirement Select from: ☑ 100% (5.11.6.9) Response to supplier non-compliance with this environmental requirement Select from: 135 ☑ Exclude (5.11.6.12) Comment No additional comments [Add row] (5.11.7) Provide further details of your organization’s supplier engagement on environmental issues. Row 1 (9.13.1.1) Regulatory classification of hazardous substances Select from: ☑ Other, please specify :Please see comment section (9.13.1.2) % of revenue associated with products containing substances in this list Select from: ☑ Less than 10% (9.13.1.3) Please explain At Avient, we define hazardous materials by the following: Based on the form of the product (Not bound in the polymer matrix and hence the hazard is biologically available) and GHS classification and labeling required based on various regional rules.

Other initiatives, including Mentoring at Avient and campus partnerships, are vital for progress in our diversity and inclusion journey.