Avient’s commitment to responsible water stewardship is exemplified by our conscientious approach to water management across our operations. Our global approach to water management integrates strategies for tracking legal obligations, assessing management costs, and prioritizing efficiency projects to optimize resource utilization and minimize environmental impact. Building upon our commitment to sustainable water management, Avient took significant strides in 2023 to enhance transparency and data accuracy across our global operations.

At any of our five global ColorWorks centers, brand managers and designers work with our dedicated team of experts to establish high-impact color concepts at the earliest stages of product development. Maintaining color consistency across multiple resins sourced from different suppliers in countries around the world is a complex task that requires color-management knowledge and global resources. And with our color-management services, you are assured that the color you’ve selected will be faithfully produced – part after part and time after time.

They are based on management’s expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements. POLYONE CORPORATION 3 Use of Non-GAAP Measures  This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. Senior management uses operating income excluding special items, adjusted EPS and working capital to assess performance and allocate resources because senior management believes that these measures are useful in understanding current profitability levels and that current levels may serve as a base for future performance.

They are based on management’s expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements. POLYONE CORPORATION 3 Use of Non-GAAP Measures  This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. Senior management uses operating income excluding special items, adjusted EPS and working capital to assess performance and allocate resources because senior management believes that these measures are useful in understanding current profitability levels and that current levels may serve as a base for future performance.

They are based on management’s expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements. U S E O F N O N - G A A P M E A S U R E S PolyOne Corporation 3 • This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. Senior management believes these measures are useful to investors because they allow for comparison to PolyOne's performance in prior periods without the effect of items that, by their nature, tend to obscure PolyOne's operating results due to the potential variability across periods based on timing, frequency and magnitude.

They are based on management’s expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements. PolyOne Corporation Page 3 Use of Non-GAAP Measures  This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. Senior management uses operating income excluding special items, adjusted EPS, and working capital to assess performance and allocate resources because senior management believes that these measures are useful in understanding current profitability levels and that current levels may serve as a base for future performance.

All standards are then published in the EH&S information management system and made available to all associates. The importance of associate participation in safety management systems is a common thread throughout our systems at Avient. We also track physical security incidents and manage those through the EH&S MS.

Senior management has referenced adjusted EPS excluding the impact of additional shares issued in February 2020. Accordingly, for purposes of comparability to the January 28, 2020 guidance, and prior year, management has referenced adjusted EPS excluding the impact of the additional shares issued in February. For purposes of comparability to the prior year, senior management has referenced adjusted EPS excluding the impact of additional shares issued in February 2020, as well as the impact of the senior unsecured notes offering completed in May 2020.

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. Avient’s Corporate EH&S Department defines the strategy and monitors performance against related management system standards. To ensure performance expectations are met, each site has trained management personnel to oversee their systems.

They are based on management’s expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements. PolyOne Corporation Page 3 Use of Non-GAAP Measures  This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. Senior management uses operating income excluding special items, adjusted EPS, and working capital to assess performance and allocate resources because senior management believes that these measures are useful in understanding current profitability levels and that current levels may serve as a base for future performance.