29/6/2021 Formulario de Impresión de Constancia de Inscripción https://seti.afip.gob.ar/padron-puc-constancia-internet/ConsultaConstanciaAction.do 1/1 ADMINISTRACION FEDERAL DE INGRESOS PUBLICOS CONSTANCIA DE INSCRIPCION  AVIENT ARGENTINA S.A.

Guided by their initiative to develop capabilities that provide additional protection for soldiers while reducing time and logistic requirements,1 the U.S. With our hardware fabrication capabilities and Avient’s knowledge of composite ballistic protection technology, we were able to create modular systems that reduce time and logistic requirements for our brave soldiers.” 1 https://www.erdc.usace.army.mil/Missions/Military-Engineering/Deployable-Force-Protection-Demo/ To learn more about ballistic resistant solutions from Avient, visit avient.com or click to request a quote.

The resolution was adopted pursuant to Ohio Revised Code section 1701.70(B) (In this space insert the number 1 through 10 to provide basis for adoption.) Upon review of the amendment document presented, my findings are as follows: 1. The fees are as follows: Expedite 1 $100 2 Business Days Expedite 2 $200 1 Business Day Expedite 3 $300 4 Business Hours 2.

Boundaries of the reporting company GHG emissions covered by the verification: • Operational Control • Global Exclusions: • Fugitive refrigerants from units Energy: o Diesel Fuel Consumption: 2,868,323 kWh o Natural Gas Fuel Consumption: 178,696,287 kWh o Renewable Energy Consumed - Self Generated (solar): 681,059 kWh o Renewable Energy Consumed - Self Generated (Wind): 2,385,048 kWh o Grid Electricity Consumed: 409,650,679 kWh o Renewable Energy Credits (REC) Purchased: 112,413,420 kWh o Renewable Electricity Consumed – Offsite: 138,415,253 kWh Page 2 Period covered by GHG emissions verification: • January 1, 2023 to December 31, 2023 Global Warming Potential (GWP) and emission factor data sets: • IPCC GWP: AR6 • USEPA Emission Factor Hub, released 2024 • USEPA eGRID, released 2024 • Final Rule (40 CFR 98) - Industrial Sector 2013 • DEFRA, released 2023 • IEA, released 2023 • European Residual Mix, released 2022 v2.0 GHG Reporting Protocols against which verification was conducted: • World Resources Institute (WRI)/World Business Council for Sustainable Development (WBCSD) Greenhouse Gas Protocol, Corporate Accounting and Reporting Standard, Revised Edition (Scope 1 and 2) and the GHG Protocol Scope 2 Guidance, an amendment to the GHG Protocol Corporate Standard • WRI/WBCSD Corporate Value Chain (Scope 3) Accounting and Reporting Standard Verification Protocols used to conduct the verification: • ISO 14064-3 Second Edition 2019-04: Greenhouse gases - Part 3: Specification with guidance for the verification and validation of greenhouse gas statements • Apex’s standard procedures and guidelines for external Assurance of Sustainability Reports and International Standard on Assurance Engagements (ISAE) 3000 Revised, Assurance Engagements Other than Audits or Reviews of Historical Financial Information (effective for assurance reports dated on or after Dec. 15, 2015), issued by the International Auditing and Assurance Standards Board. Page 3 Verification Opinion: Based on the verification process and procedures conducted to a limited assurance level of the GHG emissions statement shown above, Apex found no evidence that the GHG emissions statement: • is not materially correct and is not a fair representation of the GHG emissions data and information; and • has not been prepared in accordance with the WRI/WBCSD GHG Protocol Corporate Accounting and Reporting Standard (Scope 1 and 2), and WRI/WBCSD Greenhouse Gas Protocol Corporate Value Chain Accounting and Reporting Standard (Scope 3).

Carson, California 1. Glendale, Arizona       Shenzhen, China (1) 1.  Committees: 1, 2 COMMITTEES 1.

Pro Forma Financial Information The Company acquired Avient Protective Materials (“Dyneema”) on September 1, 2022 (the “Acquisition Date”) and sold the Distribution segment on November 1, 2022. To provide comparable results, the company references “pro forma” financial metrics, which include the business results of Avient Protective Materials for periods prior to the Acquisition Date, as if the transaction occurred on January 1, 2021 and reflect Distribution as a discontinued operation. The Company acquired the Clariant Color business on July 1, 2020.

Oversight of the Company’s Relationship with the Independent Auditor 1. Oversight of the Company’s Internal Audit Function 1. Compliance Oversight Responsibilities 1.

Globální zásady boje proti úplatkářství a korupci společnosti Avient Vydáno: 1. července 2020 Obsah Globální zásady boje proti úplatkářství a korupci společnosti Avient 1 Důležitost dodržování předpisů 1 Naše odpovědnost 1 Co je úplatek? Nabízení čehokoli hodnotného by nemělo být zaměněno s přiměřenými a omezenými zákonnými výdaji za dary, obchodní zábavu a jiné legitimní činnosti přímo související s výkonem práce pro společnost Avient. 1 Důležitost dodržování předpisů Bez ohledu na to, kde na světě působíme, se zákony proti úplatkářství a korupci vztahují na naše podnikání, mimo jiné včetně zákona o zahraničních korupčních praktikách 1 V části Dary a pohoštění Kodexu chování společnosti Avient a naše Zásady pro dary a zábavu získáte informace o tom, jak určit, zda jsou vámi navrhované výdaje povoleny. Neprovádějte zavádějící, neúplné nebo falešné záznamy v účetních knihách a záznamech společnosti Avient • Při jednání s třetími stranami neignorujte varovné signály Severní Amerika Globální centrála Avon Lake, Spojené státy 33587 Walker Road Avon Lake, OH, Spojené státy 44012 Bezplatná linka: +1-866-765-9663 Telefon: +1-440-930-1000 Fax: +440 930 3064 Asie a Tichomoří Regionální centrála Šanghaj, Čína 2F, Blok C 200 Jinsu Road Pudong, 201206 Šanghaj, Čína Telefonní číslo: +86 (0) 21 6028 4888 Fax: +86 (0) 21 6028 4999 Jižní Amerika Regionální centrála Sao Paulo, Brazílie Av.

PolyOne Corporation Page 1 PolyOne Investor Presentation Jefferies 2015 Industrials Conference August 2015 PolyOne Corporation Page 2 Forward-Looking Statements  In this presentation, statements that are not reported financial results or other historical information are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Adjusted EPS 2006Y* 2007Y* 2008Y* 2009Y* 2010Y 2011Y 2012Y 2013Y 2014Y Net income attributable to PolyOne common shareholders $ 130.9 $ 40.9 $ (417.0) $ 106.7 $ 152.5 $ 153.4 $ 53.3 $ 94.0 $ 78.0 Joint venture equity earnings, after tax (68.5) (26.1) (20.8) (19.0) (14.7) (3.7) - - - Special items, after tax(1) (21.2) 41.4 310.0 (31.0) 15.8 (30.5) 35.7 30.4 101.0 Tax adjustments(2) (30.0) (30.7) 147.2 (44.9) (88.3) (42.3) 0.5 2.2 (10.5) Adjusted net income $ 11.2 $ 25.5 $ 19.4 $ 11.8 $ 65.3 $ 76.9 $ 89.5 $ 126.6 $ 168.5 Diluted shares 92.8 93.1 92.7 93.4 96.0 94.3 89.8 96.5 93.5 Adjusted EPS $ 0.12 $ 0.27 $ 0.21 $ 0.13 $ 0.68 $ 0.82 $ 1.00 $ 1.31 $ 1.80 Adjusted EPS 2010 Q2 2011 Q2 2012 Q2 2013 Q2 2014 Q2 2015 Q2 Net income attributable to PolyOne common shareholders $ 44.7 $ 23.1 $ 18.4 $ 38.6 $ 30.9 $ 66.8 Joint venture equity earnings, after tax (4.5) - - - - - Special items, after tax(1) (9.0) 0.9 8.0 (2.2) 22.6 8.0 Tax adjustments(2) (13.1) 0.4 0.9 0.2 (5.2) (23.9) Adjusted net income $ 18.1 $ 24.4 $ 27.3 $ 36.6 $ 48.3 $ 50.9 Diluted shares 96.3 95.5 90.7 99.1 94.3 89.8 Adjusted EPS $ 0.19 $ 0.26 $ 0.30 $ 0.37 $ 0.51 $ 0.57 * Historical results are shown as presented in prior filings and have not been updated to reflect subsequent changes in accounting principal or discontinued operations 1) Special items are a non-GAAP financial measure.

PolyOne Corporation Page 1 PolyOne Investor Presentation Goldman Sachs Basic Materials Conference May 2015 PolyOne Corporation Page 2 Forward-Looking Statements  In this presentation, statements that are not reported financial results or other historical information are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Adjusted EPS 2006Y* 2007Y* 2008Y* 2009Y* 2010Y 2011Y 2012Y 2013Y 2014Y Net income attributable to PolyOne common shareholders $ 130.9 $ 40.9 $ (417.0) $ 106.7 $ 152.5 $ 153.4 $ 53.3 $ 94.0 $ 78.0 Joint venture equity earnings, after tax (68.5) (26.1) (20.8) (19.0) (14.7) (3.7) - - - Special items, after tax(1) (21.2) 41.4 310.0 (31.0) 15.8 (30.5) 35.7 30.4 101.0 Tax adjustments(2) (30.0) (30.7) 147.2 (44.9) (88.3) (42.3) 0.5 2.2 (10.5) Adjusted net income $ 11.2 $ 25.5 $ 19.4 $ 11.8 $ 65.3 $ 76.9 $ 89.5 $ 126.6 $ 168.5 Diluted shares 92.8 93.1 92.7 93.4 96.0 94.3 89.8 96.5 93.5 Adjusted EPS $ 0.12 $ 0.27 $ 0.21 $ 0.13 $ 0.68 $ 0.82 $ 1.00 $ 1.31 $ 1.80 Adjusted EPS 2010 Q1 2011 Q1 2012 Q1 2013 Q1 2014 Q1 2015 Q1 Net income attributable to PolyOne common shareholders $ 20.1 $ 106.0 $ 15.3 $ 11.2 $ 29.4 $ 30.2 Joint venture equity earnings, after tax (0.5) (3.7) - - - - Special items, after tax(1) (0.3) (79.8) 6.1 17.2 14.1 5.5 Tax adjustments(2) (3.5) (1.5) 0.1 0.5 (1.6) 5.9 Adjusted net income $ 15.8 $ 21.0 $ 21.5 $ 28.9 $ 41.9 $ 41.6 Diluted shares 95.3 96.4 90.7 92.8 95.7 90.1 Adjusted EPS $ 0.17 $ 0.22 $ 0.24 $ 0.31 $ 0.44 $ 0.46 * Historical results are shown as presented in prior filings and have not been updated to reflect subsequent changes in accounting principal or discontinued operations 1) Special items are a non-GAAP financial measure.