EXTRUSOR Tornillo 3/4" a 6" para polietileno, de filete sencillo y sin sección de mezcla, Relación de compresión 1.5–2:1 Cabezal De presión media: ángulo de 30° a 40° Dado Del tamaño adecuado para una hilera de 1/8" o menos L/D 24:1 recomendado Paquete de mallas Sin paquete de mallas (opcional según la presión) Canal de enfriamiento 50–65°C recomendado Alimentador Preferentemente gravimétrico—3 compartimentos para cross-linked Secador Desecante, 4 horas a 70°C, para el compuesto ECCOH™ solamente; nunca se debe colocar silano seco en los secadores PROCESAMIENTO Temperatura ECCOH Serie 5000 ECCOH Serie 6000 Precalentamiento del alambre 80–120°C 80–120°C Zonas de alimentación 93°C 135°C Transición 135 °C 163°C Dosificación 150°C 190°C Cabezal/dado 165°C 215°C Material fundido 165–170°C 215–225°C Llama a la salida del dado Sí, según sea necesario Velocidad de la línea Sensible a la cizalla: Observar temperatura de fusión, amperaje del motor y presión Compuesto de purga HDPE +1.844.4AVIENT www.avient.com Copyright © 2020, Avient Corporation.

Kutno, Poland 8. Greenville, North Carolina 8. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK ITEM 8.

Avient will share further information during its previously scheduled webcast scheduled for 8:00 a.m. Eastern Time on May 3, 2023. 3 Webcast Details Avient will host a webcast on Wednesday, May 3, 2023 at 8:00 a.m. You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the Securities and Exchange Commission. 6 Investor Relations Contact: Giuseppe (Joe) Di Salvo Vice President, Treasurer and Investor Relations Avient Corporation +1 440-930-1921 giuseppe.disalvo@avient.com Media Contact: Kyle G.

Table 1. Table 1. Plastic Substrate Small Radius 1 – 1.5D = Land Figure 12.

You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the Securities and Exchange Commission. Adjusted EPS attributable to PolyOne common shareholders is calculated as follows: 2009* 2010* 2011* 2012* 2013* 2014* 2015* 2016 2017 Net income from continuing operations attributable to PolyOne common shareholders $ 106.7 $ 152.5 $ 153.4 $ 53.3 $ 94.0 $ 78.0 $ 144.6 $ 166.4 $ 173.5 Joint venture equity earnings, after tax (19.0) (14.7) (3.7) — — — — — — Special items, before tax(1) (48.7) 24.2 (48.1) 55.1 46.3 164.2 87.6 23.8 32.9 Special items, tax adjustments(1) (27.2) (96.7) (24.7) (18.9) (13.7) (73.7) (58.7) (15.9) (24.8) Adjusted net income from continuing operations attributable to PolyOne common shareholders $ 11.8 $ 65.3 $ 76.9 $ 89.5 $ 126.6 $ 168.5 $ 173.5 $ 174.3 $ 181.6 Diluted shares 93.4 96.0 94.3 89.8 96.5 93.5 88.7 84.6 82.1 Adjusted EPS attributable to PolyOne common shareholders $ 0.13 $ 0.68 $ 0.82 $ 1.00 $ 1.31 $ 1.80 $ 1.96 $ 2.06 $ 2.21 * Historical results are shown as presented in prior filings and have not been updated to reflect subsequent changes in accounting principle, discontinued operations or the related resegmentation PolyOne �Investor Presentation Slide Number 2 Slide Number 3 Slide Number 4 Slide Number 5 Slide Number 6 Slide Number 7 Slide Number 8 Slide Number 9 Slide Number 10 Slide Number 11 Slide Number 12 Slide Number 13 Slide Number 14 Slide Number 15 Slide Number 16 Slide Number 17 Slide Number 18 Slide Number 19 Slide Number 20 Slide Number 21 Slide Number 22 Slide Number 23 Slide Number 24 Slide Number 25 Slide Number 26 Slide Number 27 Slide Number 28 Slide Number 29 Slide Number 30 Slide Number 31 Slide Number 32 Investor Presentation - March 2018 r4.pdf Investor Presentation - March 2018

Headquarters, R&D, Manufacturing Fiber-Line LLC 3050 Campus Drive Hatfield, PA 19440 +1 215.997.9181 Manufacturing Operations Fiber-Line LLC 280 Performance Drive SE Hickory, NC 28602 +1 828.326.8700 European Headquarters, Operations, Sales Office Fiber-Line International B.V. Fahrenheitlaan 8 9207 HE Drachten The Netherlands +31(0) 58 216 7599 European Manufacturing Operations Fiber-Line International Unit 1B, Churnet Park, James Brindley Road Leek, Staffordshire, ST13 8YH Asia Pacific Operations & Sales Office Fiber-Line International Building 9, No. 8 Lanxiang road, Shimoxi Garden, Wujin Area Changzhou, Jiangsu, China, 213145 +86(0)519-8885 7566