• We will create opportunity for our employees by growing our business, investing in world-class training and development, and making Avient the employer of choice. • We will be involved in the communities in which we operate by building closer relationships with charitable and public service organizations and encouraging our people’s engagement in local sustainability initiatives. • We will work collaboratively with our suppliers to lessen the environmental impact of logistics across our global supply chain. • We will build strong relationships with providers of leading- edge sustainable technologies that affect our businesses. LEARN MORE Avient Sustainability Sustainability Report | 2024 11Contents | About Avient | Message from the CEO | Sustainability at Avient | Enabling a Sustainable World | Preserving the Planet | Culture of Safety & Sustainability | Governance | Appendix https://sdgs.un.org/goals https://sdgs.un.org/goals https://unglobalcompact.org/ https://www.avient.com/company/sustainability/sustainability-report/goals-commitments/2030-goals-progress/un-sdgs https://www.avient.com/company/sustainability/sustainability-report/goals-commitments/2030-goals-progress/un-sdgs https://www.avient.com/company/sustainability/sustainability-report/goals-commitments/2030-goals-progress/un-sdgs https://www.avient.com/company/sustainability/sustainability-report/goals-commitments/2030-goals-progress/un-sdgs Stakeholder Engagement Topics Customers Sales and technical meetings, plant visits, trade publications, social media, surveys and feedback Business performance, materials solutions innovation, sustainability, customer service and satisfaction, technical problem solving, product safety and regulatory information Employees Quarterly global employee communications, employee engagement surveys, ongoing intranet communication, team meetings and town hall presentations, Employee Resource Groups Safety, business and individual performance, engagement action plans, sustainability, policy and organizational information, career development and training, benefits and compensation Communities* Employee community service, site management touchpoints with community leaders, Avient website, social media, Chamber of Commerce and other memberships Business performance, philanthropic and volunteer opportunities, emergency preparedness, safety and environmental protection, employment opportunities Shareholders Quarterly earnings calls, conference calls, shareholder meetings, Avient Investor Relations webpage Business strategy and execution, financial performance, sustainability Suppliers Contract negotiations, sustainability assessments, business reviews, individual meetings, Annual Supplier Summit Growth and sustainability opportunities, quality, cost, innovation Industry Associations Associations such as American Chemistry Council, collaborative initiatives such as the Plastics Recyclers Europe and Association of Plastics Recyclers Business performance, sustainability, health & safety, supply chain, regulation, community action, various industry-specific initiatives Government and Other Regulatory Agencies Avient Political Action Committee, regular communications and outreach Business performance, sustainability, regulations * Based on ongoing assessment of our footprint, Avient does not operate on indigenous lands. More specifically, we engage with local communities to address identified topics, including sustainability, emergency preparedness, safety and environmental protection, and employment opportunities.

• Being a Great Place to Work — We listen to feedback from our associates then take action in building our high-performance culture and being a global employer of choice. • Supporting Diversity and Inclusion — All associates are valued and encouraged to bring their true selves to work every day, and ensuring equal access and opportunity will contribute to our organization’s success. • Leading in Sustainability — PolyOne and Clariant are both founding members of the Alliance to End Plastic Waste, and we are committed to meeting the needs of the present without compromising the ability of future generations to do the same. • Investing in Innovation — Specialty companies invest to grow, so we ensure our resources are concentrated on material science for high-growth end markets, poised for value creation in the long term. • Operating Globally, Serving Locally — As a truly global company, we have operations and technical expertise around the world to efficiently serve our customers…wherever they may need us. • Leveraging Service as Our Timeless Differentiator — We serve our customers with excellence to build trusting, lasting and collaborative relationships. • Thriving as a Specialty Growth Company — Performance is inextricably linked to the investments we make in People, Products and Planet. For this reason, we have built an actively caring and attentive culture, where input on safety and health topics is encouraged and expected as a condition of employment. Decisions on hiring, promotion, development, compensation or advancement are based solely on a person’s qualifications, abilities, experience and performance, except where local law requires us to take actions to increase employment opportunities for a specific group.

• Being a Great Place to Work — We listen to feedback from our associates then take action in building our high-performance culture and being a global employer of choice. • Supporting Diversity and Inclusion — All associates are valued and encouraged to bring their true selves to work every day, and ensuring equal access and opportunity will contribute to our organization’s success. • Leading in Sustainability — PolyOne and Clariant are both founding members of the Alliance to End Plastic Waste, and we are committed to meeting the needs of the present without compromising the ability of future generations to do the same. • Investing in Innovation — Specialty companies invest to grow, so we ensure our resources are concentrated on material science for high-growth end markets, poised for value creation in the long term. • Operating Globally, Serving Locally — As a truly global company, we have operations and technical expertise around the world to efficiently serve our customers…wherever they may need us. • Leveraging Service as Our Timeless Differentiator — We serve our customers with excellence to build trusting, lasting and collaborative relationships. • Thriving as a Specialty Growth Company — Performance is inextricably linked to the investments we make in People, Products and Planet. For this reason, we have built an actively caring and attentive culture, where input on safety and health topics is encouraged and expected as a condition of employment. Decisions on hiring, promotion, development, compensation or advancement are based solely on a person’s qualifications, abilities, experience and performance, except where local law requires us to take actions to increase employment opportunities for a specific group.

Being a Great Place to Work — We listen to feedback from our associates then take action in building our high-performance culture and being a global employer of choice.

Being a Great Place to Work — We listen to feedback from our associates then take action in building our high-performance culture and being a global employer of choice.

Decisions on hiring, promotion, development, compensation or advancement are based solely on a person’s qualifications, abilities, experience and performance, except where local law requires us to take actions to increase employment opportunities for a specific group. Other (expense) income, net Other income, net decreased $25.6 million in 2021 as compared to 2020 due to a mark-to-market adjustment and curtailments on our pension and other post-employment benefit obligations that resulted in a loss of $9.4 million in 2021, while it resulted in a gain of $17.2 million in 2020 (see Note 11, Employee Benefit Plans to the accompanying condensed consolidated financial statements). Other Litigation — Avient is subject to a broad range of claims, administrative and legal proceedings such as lawsuits that relate to contractual allegations, tax audits, product claims, personal injuries, and employment related matters.

Being a Great Place to Work — We listen to feedback from our associates then take action in building our high-performance culture and being a global employer of choice.

Being a Great Place to Work — We listen to feedback from our associates then take action in building our high-performance culture and being a global employer of choice.

Being a Great Place to Work — We listen to feedback from our associates then take action in building our high-performance culture and being a global employer of choice.

Additionally, our products used in housing, transportation and building and construction markets are impacted by changes in demand in these sectors, which may be significantly affected by changes in economic and other conditions such as gross domestic product levels, employment levels, demographic trends, legislative actions and consumer confidence. Note 11 — OTHER BALANCE SHEET LIABILITIES Other liabilities at December 31, 2015 and 2014 consist of the following: Accrued expenses and other liabilities Other non-current liabilities December 31, December 31, (In millions) 2015 2014 2015 2014 Employment costs $ 76.8 $ 112.2 $ 21.7 $ 23.4 Environmental liabilities 10.2 11.5 109.7 109.6 Accrued taxes 4.2 10.3 — — Pension and other post-employment benefits 5.7 5.7 — — Accrued interest 12.1 16.1 — — Dividends payable 10.3 8.8 — — Unrecognized tax benefits 1.5 2.1 14.2 26.0 Other 7.1 6.2 6.9 19.3 Total $ 127.9 $ 172.9 $ 152.5 $ 178.3 Note 12 — EMPLOYEE BENEFIT PLANS We recognize actuarial gains and losses in our operating results in the year in which the gains or losses occur. Other Litigation — We are involved in various pending or threatened claims, lawsuits and administrative proceedings, all arising from the ordinary course of business concerning commercial, product liability, employment and environmental matters that seek remedies or damages.