OnColor™ Color Concentrates for Non-Phtalate PVC Formulations Plasticizers are a major component in PVC formulations. There are different chemistries, including formulations that contain phthalates and non-phthalate plasticizers. Due to the rise in non-phthalate plasticizer demand, Avient offers a range of color concentrates suitable for these formulations.

The non-GAAP financial measures include: Adjusted Earnings Per Share, Net Debt / Adjusted EBITDA, and Adjusted EBITDA. EBITDA and Adjusted EBITDA are non-GAAP financial measures that management uses in evaluating operating performance. The presentation of these measures may be different from non-GAAP financial measures used by other companies.

The non-GAAP financial measures include Adjusted Earnings Per Share and Adjusted EBITDA. EBITDA and Adjusted EBITDA are non-GAAP financial measures that management uses in evaluating operating performance. The presentation of these measures may be different from non-GAAP financial measures used by other companies.

Use of non-GAAP measures This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. The non-GAAP financial measures include: Organic Performance (which excludes the impact of foreign exchange), Adjusted Earnings Per Share, Adjusted EBITDA, and Adjusted EBITDA margins. Below is a reconciliation of these non-GAAP financial measures to their most directly comparable financial measures calculated and presented in accordance with GAAP.

Use of Non-GAAP Measures This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. EBITDA and Adjusted EBITDA are non-GAAP financial measures that management uses in evaluating operating performance. The presentation of these measures may be different from non-GAAP financial measures used by other companies.

Use of non-GAAP measures This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. Non-GAAP financial measures have limitations as analytical tools and should not be considered in isolation from, or solely as alternatives to, financial measures prepared in accordance with GAAP. Below is a reconciliation of these non-GAAP financial measures to their most directly comparable financial measures calculated and presented in accordance with GAAP.

The non-GAAP financial measures include: Adjusted Earnings Per Share, and Adjusted EBITDA. EBITDA and Adjusted EBITDA are non-GAAP financial measures that management uses in evaluating operating performance. The presentation of these measures may be different from non-GAAP financial measures used by other companies.

The non-GAAP financial measures include: Adjusted Earnings Per Share, Net Debt / Adjusted EBITDA, and Adjusted EBITDA. EBITDA and Adjusted EBITDA are non-GAAP financial measures that management uses in evaluating operating performance. The presentation of these measures may be different from non-GAAP financial measures used by other companies.

Use of non-GAAP measures This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. Below is a reconciliation of these non-GAAP financial measures to their most directly comparable financial measures calculated and presented in accordance with GAAP. Slide 23 Slide 24: Avient 2024 sales Slide 25: Color, Additives & Inks Slide 26: Specialty Engineered Materials Slide 27: Avient 2024 regional sales, by end market Slide 28: Raw material basket Slide 29: Reconciliation of Non-GAAP financial measures (UNAUDITED) Slide 30: Reconciliation of Non-GAAP financial measures (UNAUDITED) Slide 31: Reconciliation of Non-GAAP financial measures (UNAUDITED)

Use of Non-GAAP Measures This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. EBITDA and Adjusted EBITDA are non-GAAP financial measures that management uses in evaluating operating performance. The presentation of these measures may be different from non-GAAP financial measures used by other companies.