AVNT-2022.06.30-News Release 1 NEWS RELEASE FOR IMMEDIATE RELEASE Avient Announces Second Quarter 2022 Results • Second quarter sales grew to $1.3 billion, a 5% increase over the prior year quarter, and an all-time quarterly record • GAAP EPS increased 24% to $0.92 compared to $0.74 in the prior year quarter • Adjusted EPS increased 13% to $0.98 compared to $0.87 in the prior year quarter, exceeding second quarter guidance of $0.92. Second quarter sales increased 5% over the prior year quarter to $1.3 billion, and adjusted EPS increased 13% (20% excluding negative foreign exchange) to $0.98.”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. 5 Non-GAAP Financial Measures The Company uses both GAAP (generally accepted accounting principles) and non-GAAP financial measures.

La importación, exportación y comercialización de equipamiento, maquinaria, repuestos y accesorios con destino a la industria química; 5. Celebrar operaciones de crédito tanto activas como pasivas, suscribir contratos con entidades financieras, suscribir, endosar o negociar títulos valores, suscribir documentos aduaneros o de importación o exportación y celebrar contratos comerciales con personas naturales o jurídicas; 5. Parágrafo primero: El representante legal podrá Página 5 de 11 Cámara de Comercio de Bogotá Sede Virtual CERTIFICADO DE EXISTENCIA Y REPRESENTACIÓN LEGAL Fecha Expedición: 12 de abril de 2021 Hora: 13:04:47 Recibo No.

Microsoft Word - Avient Announces Third Quarter 2024 Results 1 NEWS RELEASE FOR IMMEDIATE RELEASE Avient Announces Third Quarter 2024 Results • Third quarter sales increased 8% over the prior year quarter to $815 million supported by broad-based growth across all regions and most end markets • Third quarter GAAP EPS from continuing operations of $0.41 compared to $0.06 in the prior year quarter • Third quarter adjusted EPS of $0.65 exceeded guidance of $0.62 and increased 14% over prior year quarter, driven by organic revenue growth and margin expansion in both segments, as well as lower interest expense • 2024 full-year adjusted EPS guidance range narrowed to $2.63 to $2.67, from prior guidance range of $2.55 to $2.70; Revised guidance reflects 11% to 13% growth in adjusted EPS over the prior year • Increased dividend 5% to $1.08, on an annualized basis, representing the fourteenth consecutive annual increase CLEVELAND – 2024年10月31日 – Avient Corporation (NYSE: AVNT), a leading provider of specialized and sustainable materials solutions, today announced its third quarter 2024 results. The EMEA region's organic revenues grew 5%, benefiting from share gains in packaging and continued strong demand for defense applications." 2024 Outlook "The year has continued to play out as we expected, and as we look at the fourth quarter, we are in a position to narrow our full-year guidance," said Jamie Beggs, Senior Vice President and Chief Financial Officer of Avient Corporation. 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. 5 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.

Microsoft Word - Avient Announces Fourth Quarter and Full Year 2024 Results 1 NEWS RELEASE FOR IMMEDIATE RELEASE Avient Announces Fourth Quarter and Full Year 2024 Results • Fourth quarter sales increased 4% to $747 million and full year sales increased 3% to $3,240 million • Organic sales, which excludes the impact of foreign exchange, grew 5% and 4% in the fourth quarter and full year, respectively, driven by positive growth in all regions • Fourth quarter and full year GAAP EPS from continuing operations of $0.52 and $1.84 compared to $0.30 and $0.83 in the prior year • Fourth quarter adjusted EPS of $0.49, above mid-point of guidance range of $0.46 to $0.50 and includes a $0.01 unfavorable impact from foreign exchange • 2024 full year adjusted EPS of $2.66 represents an increase of 13% over the prior year, driven by sales growth and margin expansion in both segments • 2025 full year adjusted EPS expected to range from $2.70 to $2.94; the mid-point represents 11% growth when excluding the unfavorable impact of foreign exchange of $0.12 CLEVELAND – 2025年2月13日 – Avient Corporation (NYSE: AVNT), an innovator of materials solutions, today announced its fourth quarter and full year results for 2024. Our teams remained focused and delivered 5% organic sales growth in the quarter with a backdrop of U.S. elections, inflation fears, and a changing geopolitical climate,” said Dr. Visit www.avient.com to learn more. 5 Forward-looking Statements In this press release, 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.

If Seller determines that Buyer’s financial responsibility has become impaired or otherwise unsatisfactory to Seller, Seller may require advance cash payments, COD, shorter terms, and/or the posting of satisfactory security by Buyer, and may withhold shipments until Buyer complies. 5. Si el Vendedor determina que la responsabilidad financiera del Comprador ha sido ha sido deteriorada o no satisfactoria para el Vendedor, el Vendedor podrá exigir pagos por adelantado en efectivo, pag contra entrega, plazos más cortos, y/o la presentación de una garantía satisfactoria por parte del Comprador, y podrá retener los envíos hasta que el Comprador cumpla. 5. Either party may suspend performance hereunder (except to pay for Product already received) in the event of: (1) acts of God, fire, explosion, flood, hurricanes; (2) strikes, lockouts or other industrial disturbances or riots; (3) war, declared or undeclared, or acts of terrorism; (4) compliance with any Federal, state, provincial, municipal or military law, regulation, order, or rule, foreign or domestic, including priority, rationing, allocation or preemption orders or regulations, or cancellation of Seller’s or Buyer’s license to operate its plant; (5) catastrophic failure of facilities used to manufacture Product, interruption or shortage of transportation, labor, power, fuel or raw materials; (6) total or partial shutdown due to Seller’s normal plant turnaround; or (7) any other cause or causes of any kind or character reasonably outside the control of the party failing to perform, whether similar or dissimilar from the enumerated causes (a “force majeure”).

Antitrust Laws 2 Antitrust Law Violations 3 Antitrust Potential Areas of Concern 3 Conclusion 5 Reporting Possible Violations 6 Avient Ethics Hotline 6 Protection from Retaliation 6 Antitrust Checklist 7 Quick Reference: Antitrust DO’s and DON’Ts 9 Guide For Compliance Avient is committed to promoting fair competition and free enterprise in the marketplace. This is a particular concern if there is monopoly power or a high market share in the relevant product market. 5. Also, document the basis for any independent business decision that in the future may be subject to suspicion so that the record is clear that it was not reached pursuant to an agreement with a competitor. 5.

2 Corruption de représentants du gouvernement 2 Corruption commerciale 3 Paiements de facilitation et dessous-de-table 3 Travailler avec des mandataires, des distributeurs et d’autres tiers 3 Diligence raisonnable et processus d’approbation 4 Signauz d’alerte 4 Exigences en matière de comptabilité et de tenue des comptes 4 Signalement d’infractions possibles 5 Service d’assistance en matière de déontologie d’Avient 5 Protection contre les représailles 5 Guide de référence rapide: LES CHOSES À FAIRE ET À NE PAS FAIRE EN MATIÈRE DE LC 6 1 Notre politique mondiale de lutte contre la corruption Avient interdit strictement la fraude, la corruption et les autres pratiques commerciales malhonnêtes dans toutes ses activités commerciales dans le monde entier. Il doit Table des matières 5 inclure l’objet, le montant et d’autres facteurs pertinents.

Microsoft Word - AVNT-2024.06.30-News Release (for PR) 1 NEWS RELEASE FOR IMMEDIATE RELEASE Avient Announces Second Quarter 2024 Results • Second quarter sales grew to $850 million, a 3% increase over the prior year quarter and a 5% organic increase when excluding the impact of foreign exchange • Second quarter GAAP EPS from continuing operations of $0.36 compared to $0.24 in the prior year quarter • Second quarter adjusted EPS of $0.76 exceeded guidance of $0.71 and increased 21% over prior year quarter, driven by organic revenue growth in all regions, favorable input costs and lower interest expense • Increasing 2024 full-year adjusted EPS guidance range to $2.55 to $2.70, from prior guidance of $2.50 to $2.65 given strong second quarter results; Revised guidance reflects 8% to 14% growth in adjusted EPS over the prior year • 2023 Sustainability Report published online, detailing progress toward 2030 Sustainability Goals and ESG performance ratings • Investor Day to be held December 4th in New York City to highlight the company strategy CLEVELAND – 2024年8月6日 – Avient Corporation (NYSE: AVNT), a leading provider of specialized and sustainable materials solutions, today announced its second quarter 2024 results. The US and Canada grew organic sales 5% and Latin America had a strong quarter growing organic sales by 19%. For more information, visit https://www.avient.com/. 5 Forward-looking Statements In this press release, 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.

VOC reducing materials that address vehicle air quality standards) Impact Legend Time horizon Legend Low impact S - short-term 0-5 years Moderate impact M - medium-term 5-15 years High impact L - long-term 15-30 years BUSINESS IMPLICATIONS AND STRATEGIC RESPONSES BUSINESS IMPLICATIONS AND STRATEGIC RESPONSES IMPACT DRIVER & TIME HORIZON Policy & Legal Risk M L Technology Risk S M Market Risk S M Reputation Risk L Acute & Chronic Risk L IMPACT DRIVER & TIME HORIZON Resource Efficiency Opportunity S M L Energy Source Opportunity M L Products & Services and Markets Opportunities S M L · We have embedded an energy intensity KPI (covering process and builidng efficiencies) into the incentive structure for all employees

STAT-TECH AS-10CF/000 BLACK STAT-TECH ST3200-0010 NH FR BLACK STAT-TECH ST9620-0020 ES RED STAT-TECH NN-40CF/000 NH FRV0 NATURAL Applications Sensor, Camera & ECU Housings Sensor, Camera & ECU Housings Sensor, Camera & ECU Housings Sensor, Camera & ECU Housings Defining Features Antistatic Conductive EMI Shielding Flame Retardant EMI Shielding Good Chemical Resistance High Stiffness Filler/ Reinforcement Carbon Fiber, 10% by Wt — Nickel-Coated Carbon Fiber Carbon Fiber, 40% by Wt Surface Resistivity 1.0E+2 to 1.0E+6 ohms 1.5E+4 ohms 1.0E+2 to 1.0E+4 ohms 1.0E+2 to 1.0E+5 ohms Shielding Effectiveness (10GHz, 1/8" thickness) — — 61 dB 70 dB HOW STAT-TECH MATERIAL MAKES THE DIFFERENCE IN AUTOMOTIVE ADAS SENSORS, CAMERAS AND ECUS Protection from static buildup – Stat-Tech material reduces static buildup with surface resistivity between 1.0E+2 ohms and 1.0E+6 ohms, minimizing sparks from damaging nearby electrical components, especially those near fuel storage.