Several years ago we set ambitious 2030 sustainability targets that outline our commitments related to climate change, waste, product innovation, and supplier engagement, as well as a goal to reach carbon neutrality by 2050. Sustainability performance recognized with a Gold Medal for EcoVadis, and with an ARanking for CDP Climate Change Ranked as one of America’s Most Responsible Companies by Newsweek, 100 Most Sustainable Companies by Barron’s, and recognized on the USA Today’s America’s Climate Leaders List

Avient is fully committed to protecting the environment by addressing climate change, conserving natural resources and preventing pollution. Through our environmental aspect and impact assessments within our RC14001 EH&S Management System, we have focused on the following key topics: energy, emissions and climate change, as well as effluents and waste from our operations.

3) Task Force on Climate-Related Financial Disclosures (TCFD): a four-step framework that can help organizations accurately disclose financial information as it relates to the following climate issues:   Governance disclosures: typically describe your organization’s view on climate-related issues. There are industry frameworks that can help with reporting ESG metrics – such as the Global Reporting Initiative (GRI), Sustainability Accounting Standards Board (SASB), or the Task Force on Climate-Related Disclosures (TCFD).

3) Task Force on Climate-Related Financial Disclosures (TCFD): a four-step framework that can help organizations accurately disclose financial information as it relates to the following climate issues:   Governance disclosures: typically describe your organization’s view on climate-related issues. There are industry frameworks that can help with reporting ESG metrics – such as the Global Reporting Initiative (GRI), Sustainability Accounting Standards Board (SASB), or the Task Force on Climate-Related Disclosures (TCFD).

To better reflect the actual price of CO2 to society, and ensure costs are within the ranges of the scenarios we use for assessing climate transition risks, Avient has instituted an internal cost of carbon. We additionally expanded our existing risk management practices to incorporate the analysis of short to long-term climate-related risks and opportunities under various climate scenarios. HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2023 91 Task Force on Climate-related Financial Disclosures (TCFD) Index Recommended Disclosure Avient Disclosures Describe the board’s oversight of climate-related risks and opportunities Message from the Governance and Corporate Responsibility Committee Page 4 Planet—Climate Change Page 53 Avient 2023 Proxy Statement Pages 30–31, 34 CDP Climate Change Response—C1.1b Describe management’s role in assessing and managing climate-related risks and opportunities Message from Avient's VP of Sustainability Page 16 People—Environmental, Health & Safety Page 18 Planet—Climate Change Page 53 CDP Climate Change Response—C1.2, C1.2a Describe the climate-related risks and opportunities the organization has identified over the short, medium, and long term CDP Climate Change Response—C2.1, C2.2C, C2.3a, C2.4a Describe the impact of climate-related risks and opportunities on the organization’s businesses, strategy, and financial planning CDP Climate Change Response—C2.5, C2.6 Describe the resilience of the organization’s strategy, taking into consideration different climate-related scenarios, including a 2°C or lower scenario CDP Climate Change Response—C3.1a, C3.1g Risk Management Describe the organization’s processes for identifying and assessing climate-related risks Planet—Climate Change Page 53 CDP Climate Change Response—C2.2, C2.2a, C2.2b Describe the organization’s processes for managing climate-related risks Planet—Climate Change Page 53 CDP Climate Change Response—C2.2, C2.2d Describe how processes for identifying, assessing and managing climate-related risks are integrated into the organization’s overall risk management CDP Climate Change Response—C2.2, C3.1c Metrics & Targets Disclose the metrics used by the organization to assess climate-related risks and opportunities in line with its strategy and risk management process CDP Climate Change Response—C6.1, C6.2, C6.3, C6.5 Disclose Scope 1, Scope 2 and, if appropriate, Scope 3 greenhouse gas emissions and the related risks Metrics—Planet Data and Metrics Page 77 CDP Climate Change Response—C6.1, C6.2, C6.3, C6.5 Describe the targets used by the organization to manage climate-related risks and opportunities and performance against targets 2030 Sustainability Goals Page 7 CDP Climate Change Response—C4 HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2023 92 TCFD Climate Scenario Risks & Opportunities Matrix *For full disclosure of the results as aligned with TCFD guidance, refer to CDP Climate Change Report.

Higher Mesh counts may require a print / flash / print scenario.

We established Avient’s 2030 Sustainability Goals to set clear expectations for our company related to climate change, product innovation, and overall corporate responsibility.

While 2030 goals around the reduction of absolute Scope 1 & 2 emissions and green energy procurement are in place, Avient will strive to further refine our climate strategy and targets based on scenario analyses as recommended by the Task Force on Climate-related Financial Disclosures (TCFD). While 2030 goals around the reduction of absolute Scope 1 & 2 emissions and green energy procurement are in place, Avient will strive to further refine our climate strategy and targets based on scenario analyses as recommended by the Task Force on Climate-related Financial Disclosures (TCFD). Who We Are—Revenue by Geography and End Market Sustainability Accounting Standards Board (SASB) Chemicals Standard Index Sustainability Report | 2019 107 Task Force on Climate-related Financial Disclosures (TCFD) Index Recommended Disclosure Avient Disclosures Describe the board’s oversight of climate-related risks and opportunities Message from the Governance and Corporate Responsibility Committee Planet—Energy, Greenhouse Gas (GHG) Emissions and Climate Change 2019 CDP Climate Change Response—C1.1b Describe management’s role in assessing and managing climate-related risks and People—Management Approach EH&S Planet—Protecting Our Planet 2019 CDP Climate Change Response—C1.2, C1.2a Strategy Describe the climate-related risks and opportunities the organization has identified over the short, medium, and long term 2019 CDP Climate Change Response—C2.1, C2.2C, C2.3a, C2.4a Describe the impact of climate-related risks and opportunities on the organization’s businesses, strategy, and financial planning 2019 CDP Climate Change Response—C2.5, C2.6 Describe the resilience of the organization’s strategy, taking into consideration different climate-related scenarios, including a 2°C or lower scenario 2019 CDP Climate Change Response—C3.1a, C3.1g Risk Management Describe the organization’s processes for identifying and assessing climate-related risks Planet—Energy, Greenhouse Gas (GHG) Emissions and Climate Change 2019 CDP Climate Change Response—C2.2, C2.2a, C2.2b Describe the organization’s processes for managing climate-related risks Planet—Energy, Greenhouse Gas (GHG) Emissions and Climate Change 2019 CDP Climate Change Response—C2.2, C2.2d Describe how processes for identifying, assessing and managing climate-related risks are integrated into the organization’s overall risk management Planet—Energy, Greenhouse Gas (GHG) Emissions and Climate Change 2019 CDP Climate Change Response—C2.2, C3.1c Metrics & Targets Disclose the metrics used by the organization to assess climate-related risks and opportunities in line with its strategy and risk management process Planet—Energy, Greenhouse Gas (GHG) Emissions and Climate Change 2019 CDP Climate Change Response—C6.1, C6.2, C6.3, C6.5 Disclose Scope 1, Scope 2 and, if appropriate, Scope 3 greenhouse gas emissions and the related risks Planet—Energy, Greenhouse Gas (GHG) Emissions and Climate Change 2019 CDP Climate Change Response—C6.1, C6.2, C6.3, C6.5 Describe the targets used by the organization to manage climate-related risks and opportunities and performance against targets Planet—Energy, Greenhouse Gas (GHG) Emissions and Climate Change Goals & Metrics—Sustainability Goals 2019 CDP Climate Change Response—C4 Sustainability Report | 2019 108 We define EBITDA as earnings before interest (net of interest income), taxes, depreciation and amortization.

While 2030 goals around the reduction of absolute Scope 1 & 2 emissions and green energy procurement are in place, Avient will strive to further refine our climate strategy and targets based on scenario analyses as recommended by the Task Force on Climate-related Financial Disclosures (TCFD). While 2030 goals around the reduction of absolute Scope 1 & 2 emissions and green energy procurement are in place, Avient will strive to further refine our climate strategy and targets based on scenario analyses as recommended by the Task Force on Climate-related Financial Disclosures (TCFD). Who We Are—Revenue by Geography and End Market Sustainability Accounting Standards Board (SASB) Chemicals Standard Index Sustainability Report | 2019 107 Task Force on Climate-related Financial Disclosures (TCFD) Index Recommended Disclosure Avient Disclosures Describe the board’s oversight of climate-related risks and opportunities Message from the Governance and Corporate Responsibility Committee Planet—Energy, Greenhouse Gas (GHG) Emissions and Climate Change 2019 CDP Climate Change Response—C1.1b Describe management’s role in assessing and managing climate-related risks and People—Management Approach EH&S Planet—Protecting Our Planet 2019 CDP Climate Change Response—C1.2, C1.2a Strategy Describe the climate-related risks and opportunities the organization has identified over the short, medium, and long term 2019 CDP Climate Change Response—C2.1, C2.2C, C2.3a, C2.4a Describe the impact of climate-related risks and opportunities on the organization’s businesses, strategy, and financial planning 2019 CDP Climate Change Response—C2.5, C2.6 Describe the resilience of the organization’s strategy, taking into consideration different climate-related scenarios, including a 2°C or lower scenario 2019 CDP Climate Change Response—C3.1a, C3.1g Risk Management Describe the organization’s processes for identifying and assessing climate-related risks Planet—Energy, Greenhouse Gas (GHG) Emissions and Climate Change 2019 CDP Climate Change Response—C2.2, C2.2a, C2.2b Describe the organization’s processes for managing climate-related risks Planet—Energy, Greenhouse Gas (GHG) Emissions and Climate Change 2019 CDP Climate Change Response—C2.2, C2.2d Describe how processes for identifying, assessing and managing climate-related risks are integrated into the organization’s overall risk management Planet—Energy, Greenhouse Gas (GHG) Emissions and Climate Change 2019 CDP Climate Change Response—C2.2, C3.1c Metrics & Targets Disclose the metrics used by the organization to assess climate-related risks and opportunities in line with its strategy and risk management process Planet—Energy, Greenhouse Gas (GHG) Emissions and Climate Change 2019 CDP Climate Change Response—C6.1, C6.2, C6.3, C6.5 Disclose Scope 1, Scope 2 and, if appropriate, Scope 3 greenhouse gas emissions and the related risks Planet—Energy, Greenhouse Gas (GHG) Emissions and Climate Change 2019 CDP Climate Change Response—C6.1, C6.2, C6.3, C6.5 Describe the targets used by the organization to manage climate-related risks and opportunities and performance against targets Planet—Energy, Greenhouse Gas (GHG) Emissions and Climate Change Goals & Metrics—Sustainability Goals 2019 CDP Climate Change Response—C4 Sustainability Report | 2019 108 We define EBITDA as earnings before interest (net of interest income), taxes, depreciation and amortization.

3) Task Force on Climate-Related Financial Disclosures (TCFD): a four-step framework that can help organizations accurately disclose financial information as it relates to the following climate issues:   Governance disclosures: typically describe your organization’s view on climate-related issues. There are industry frameworks that can help with reporting ESG metrics – such as the Global Reporting Initiative (GRI), Sustainability Accounting Standards Board (SASB), or the Task Force on Climate-Related Disclosures (TCFD).