Avient's chief operating decision maker uses these financial measures to monitor and evaluate the ongoing performance of the Company and each business segment and to allocate resources. Forward-looking statements give current expectations or forecasts of future events and are not guarantees of future performance. Three Months Ended June 30, Six Months Ended June 30, 2023 2022 2023 2022 Sales: Color, Additives and Inks $ 524.5 $ 649.1 $ 1,061.5 $ 1,298.6 Specialty Engineered Materials 300.8 242.3 610.5 485.4 Corporate (0.9) (0.4) (1.9) (0.8) Sales $ 824.4 $ 891.0 $ 1,670.1 $ 1,783.2 Gross margin: Color, Additives and Inks $ 164.1 $ 193.4 $ 326.1 $ 385.5 Specialty Engineered Materials 91.5 66.0 185.4 134.4 Corporate (14.9) 1.5 (23.2) (4.6) Gross margin $ 240.7 $ 260.9 $ 488.3 $ 515.3 Selling and administrative expense: Color, Additives and Inks $ 96.1 $ 99.8 $ 192.5 $ 197.4 Specialty Engineered Materials 51.8 30.8 102.6 60.9 Corporate 30.5 30.2 73.8 54.7 Selling and administrative expense $ 178.4 $ 160.8 $ 368.9 $ 313.0 Operating income: Color, Additives and Inks $ 68.0 $ 93.6 $ 133.6 $ 188.1 Specialty Engineered Materials 39.7 35.2 82.8 73.5 Corporate (45.4) (28.7) (97.0) (59.3) Operating income $ 62.3 $ 100.1 $ 119.4 $ 202.3 Depreciation & amortization: Color, Additives and Inks $ 25.7 $ 25.8 $ 51.5 $ 51.9 Specialty Engineered Materials 19.9 7.6 41.1 15.5 Corporate 2.0 3.1 5.5 6.9 Depreciation & Amortization $ 47.6 $ 36.5 $ 98.1 $ 74.3 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 93.7 $ 119.4 $ 185.1 $ 240.0 Specialty Engineered Materials 59.6 42.8 123.9 89.0 Corporate (43.4) (25.6) (91.5) (52.4) Other income (expense), net (0.2) 1.6 0.5 1.0 EBITDA including special items $ 109.7 $ 138.2 $ 218.0 $ 277.6 Total Company special items in EBITDA 21.6 (0.2) 47.1 4.4 Total Company, EBITDA adjusted $ 131.3 $ 138.0 $ 265.1 $ 282.0 13 Attachment 7 Avient Corporation Reconciliation of Non-GAAP Financial Measures (Unaudited) (In millions, except per share data) Senior management uses gross margin before special items and operating income before special items to assess performance and allocate resources because senior management believes that these measures are useful in understanding current profitability levels and how it may serve as a basis for future performance.

Avient's chief operating decision maker uses these financial measures to monitor and evaluate the ongoing performance of the company and each business segment and to allocate resources. Forward-looking statements give current expectations or forecasts of future events and are not guarantees of future performance. Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Sales: Color, Additives and Inks $ 486.5 $ 565.6 $ 1,548.0 $ 1,864.2 Specialty Engineered Materials 267.9 258.2 878.4 743.6 Corporate (0.7) (0.5) (2.6) (1.3) Sales $ 753.7 $ 823.3 $ 2,423.8 $ 2,606.5 Gross margin: Color, Additives and Inks $ 156.8 $ 161.3 $ 482.9 $ 546.8 Specialty Engineered Materials 78.3 66.9 263.7 201.3 Corporate (39.8) (32.8) (63.0) (37.4) Gross margin $ 195.3 $ 195.4 $ 683.6 $ 710.7 Selling and administrative expense: Color, Additives and Inks $ 92.3 $ 92.7 $ 284.8 $ 290.1 Specialty Engineered Materials 48.0 35.5 150.6 96.4 Corporate 20.7 26.6 94.5 81.3 Selling and administrative expense $ 161.0 $ 154.8 $ 529.9 $ 467.8 Operating income: Color, Additives and Inks $ 64.5 $ 68.6 $ 198.1 $ 256.7 Specialty Engineered Materials 30.3 31.4 113.1 104.9 Corporate (60.5) (59.4) (157.5) (118.7) Operating income $ 34.3 $ 40.6 $ 153.7 $ 242.9 Depreciation & amortization: Color, Additives and Inks $ 24.6 $ 24.2 $ 76.1 $ 76.1 Specialty Engineered Materials 20.5 12.9 61.6 28.4 Corporate 1.3 2.7 6.8 9.2 Depreciation & Amortization $ 46.4 $ 39.8 $ 144.5 $ 113.7 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 89.1 $ 92.8 $ 274.2 $ 332.8 Specialty Engineered Materials 50.8 44.3 174.7 133.3 Corporate (59.2) (56.7) (150.7) (109.5) Other income (expense), net 1.0 (32.3) 1.5 (31.3) EBITDA including special items $ 81.7 $ 48.1 $ 299.7 $ 325.3 Special items in EBITDA 41.0 71.2 88.1 75.6 Total Company, EBITDA adjusted $ 122.7 $ 119.3 $ 387.8 $ 400.9 13 Attachment 7 Avient Corporation Reconciliation of Non-GAAP Financial Measures (Unaudited) (In millions, except per share data) Senior management uses gross margin before special items and operating income before special items to assess performance and allocate resources because senior management believes that these measures are useful in understanding current profitability levels and how it may serve as a basis for future performance.

Forward-looking statements give current expectations or forecasts of future events and are not guarantees of future performance. Senior management uses adjusted operating income, 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. Appendix Q3 2014 Financial Highlights At a Glance�Global Color, Additives and Inks At a Glance�Global Specialty Engineered Materials At a Glance�Designed Structures and Solutions At a Glance�Performance Products and Solutions At a Glance�Distribution Plastics: Key to Future Sustainable Development Commitment to Operational Excellence Application Examples Slide Number 28 Anti-Counterfeiting Solutions 2012 Range Rover Evoque Interior Slide Number 31 Metal Replacement Solutions Next Generation Solar Charger High-Barrier Packaging Containers Aerospace Applications Non GAAP Rec - 11 5 14.pdf Sidoti & Company non-GAAP Rec

Forward-looking statements give current expectations or forecasts of future events and are not guarantees of future performance. 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. Segment Highlights At a Glance: Color, Additives & Inks At a Glance: Specialty Engineered Materials At a Glance: Designed Structures & Solutions At a Glance: Performance Products & Solutions At a Glance: Distribution Application Examples Luxury Packaging�with Gravitech Density Modified Polymers Optimize Color Usage�with OnColor Super Concentrates Combat Bacteria Formation�with WithStand Antimicrobial Technology Medical Device Housings�with Chemically Resistant Engineered Polymers Color & Design Services Outdoor Applications Fiber Colorants�Solutions for clothing, apparel, footwear, automotive & sporting goods High-Barrier Packaging Containers Investor Presentation - January 2017 r14 Investor Presentation - January 2017

Forward-looking statements give current expectations or forecasts of future events and are not guarantees of future performance. 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. Segment Highlights At a Glance: Color, Additives & Inks At a Glance: Specialty Engineered Materials At a Glance: Designed Structures & Solutions At a Glance: Performance Products & Solutions At a Glance: Distribution Target End Markets &�Application Examples Slide Number 21 Slide Number 22 Slide Number 23 Slide Number 24 Luxury Packaging�with Gravitech Density Modified Polymers Optimize Color Usage�with OnColor Super Concentrates Combat Bacteria Formation�with WithStand Antimicrobial Technology Medical Device Housings�with Chemically Resistant Engineered Polymers Color & Design Services Outdoor Applications Fiber Colorants�Solutions for clothing, apparel, footwear, automotive & sporting goods High-Barrier Packaging Containers Smart Home Devices�with Resilience Vinyl Solutions Investor Presentation Non-GAAP Rec - May 2017 r2 Investor Presentation - May 2017

Understanding TPE Performance for Enabling 5G Technologies Evaluating the Performance of PKE for POM Replacement High Performance Clear Thermoplastics Elastomer - White Paper

Homepage // News Center // New ColorMatrix™ Optica™ Toners from Avient Correct Color, Enhance Performance in rPET The solution also incorporates the added benefits of ColorMatrix™ SmartHeat™ RHC technology for improved processing performance. Examples include: •    Barrier technologies that preserve the shelf-life and quality of food, beverages, medicine and other perishable goods through high-performance materials that require less plastic •    Light-weighting solutions that replace heavier traditional materials like metal, glass and wood, which can improve fuel efficiency in all modes of transportation •    Breakthrough technologies that minimize wastewater and improve the recyclability of materials and packaging across a spectrum of end uses

Understanding TPE Performance for Enabling 5G Technologies Evaluating the Performance of PKE for POM Replacement High Performance Clear Thermoplastics Elastomer - White Paper

WILFLEX OASIS NF PLASCHARGE

10545W1 WILFLEX ONE UNDERBASE GRAY