产品牌号 硬度 颜色 包覆成型 应用 密度 (g/cm3) 合规 FDA EU GB Dynalloy™ FC 3510 系列 40–80A 本色 PETG, ABS, PC 1.04 FDA 177.1210 (水性食品；条件D-G) EU 10/2010 GB 4806.6- 2016 Dynalloy™ FC 7850 & 7860 系列 30–80A 半透明/本色 PP 0.88/0.99 通用 FDA FDA 177.1210 (水性食品但酒精含量 不超过8%；条件B-G 。 对于脂肪类食品和 酒精含量超过8%的食 品；条件D-G) EU 10/2011 GB 4806.6- 2016 Versaflex™ CL2242 43A 透明 PP/PC/ABS 0.89 FDA 177.1210 (所有食品；条件A–H) FDA 177.1210 (水性食品；条件A-H) FDA 177.2600 (水性食品；条件A-H) FDA 177.2600 (水性食品；条件A-H) FDA 177.2600 (水性食品；条件A-H) FDA 177.2600 (水性食品；条件A-H) N/A N/A Versaflex™ CL2250 50A 透明 PP/PC/ABS 0.89 N/A N/A Dynaflex™ G2780C 84A 半透明 PE 0.9 N/A N/A Versaflex™ FFC 2882-50 50A 半透明 PP 0.9 EU 10/2011 N/A Versaflex™ FFC 2882-70 70A 半透明 PP 0.88 EU 10/2011 GB 4806.6- 2016 Versaflex™ FFC 2882-87 87A 半透明 PP 0.88 EU 10/2011 GB 4806.6- 2016 Versaflex™ FFC 3882-70 70A 本色 PETG, ABS, PC 1.1 EU 10/2011 Versaflex™ OM 9100 系列 30–50A 半透明 PC/ABS 0.9 FDA 177.1210 N/A N/A 食品级 TPE 适合与食品接触的热塑性弹性体 不含双酚 A(BPA)，邻苯二甲酸盐或重 金属；符合 FDA， EU10 / 2011和中国 GB4806 的等级 耐磨性及抗撕裂，经过测试，可以安全 地用于微波炉和洗碗机 具有理想的包胶性能，不仅提供柔软的 表面触感，并可根据特定的舒适度要求 进行定制，包括减少振动和降低噪音 可注塑成型或直接在PP, ABS等基材上 包覆成型 无需二次加工，保证产品质量及稳定性 产品牌号 硬度 颜色 包覆成型 密度 (g/cm3) 合规 FDA EU GB Dynalloy™ FC 3510 系列 40–80A 本色 PETG, ABS, PC 1.04 FDA 177.1210 (水性食品；条件D-G) EU 10/2010 GB 4806.6- 2016 Dynalloy™ FC 7850 & 7860 系列 30–80A 半透明/本色 PP 0.88/0.99 通用 FDA FDA 177.1210 (水性食品但酒精含量 不超过8%；条件B-G 。 对于脂肪类食品和 酒精含量超过8%的食 品；条件D-G) EU 10/2011 GB 4806.6- 2016 Versaflex™ CL2242 43A 透明 PP/PC/ABS 0.89 FDA 177.1210 (所有食品；条件A–H) FDA 177.1210 (水性食品；条件A-H) FDA 177.2600 (水性食品；条件A-H) FDA 177.2600 (水性食品；条件A-H) FDA 177.2600 (水性食品；条件A-H) FDA 177.2600 (水性食品；条件A-H) N/A N/A Versaflex™ CL2250 50A 透明 PP/PC/ABS 0.89 N/A N/A Dynaflex™ G2780C 84A 半透明 PE 0.9 N/A N/A Versaflex™ FFC 2882-50 50A 半透明 PP 0.9 EU 10/2011 N/A Versaflex™ FFC 2882-70 70A 半透明 PP 0.88 EU 10/2011 GB 4806.6- 2016 Versaflex™ FFC 2882-87 87A 半透明 PP 0.88 EU 10/2011 GB 4806.6- 2016 Versaflex™ FFC 3882-70 70A 本色 PETG, ABS, PC 1.1 EU 10/2011 Versaflex™ OM 9100 系列 30–50A 半透明 PC/ABS 0.9 FDA 177.1210 N/A N/A 食品级 TPE 适合与食品接触的热塑性弹性体 不含双酚 A(BPA)，邻苯二甲酸盐或重 金属；符合 FDA， EU10 / 2011和中国 GB4806 的等级 耐磨性及抗撕裂，经过测试，可以安全 地用于微波炉和洗碗机 具有理想的包胶性能，不仅提供柔软的 表面触感，并可根据特定的舒适度要求 进行定制，包括减少振动和降低噪音 可注塑成型或直接在PP, ABS等基材上 包覆成型 无需二次加工，保证产品质量及稳定性 产品牌号 硬度 颜色 包覆成型 版权所有© 2024埃万特公司。

Enter the entity's name as shown on the entity's tax return on line 1 and any business, trade, or DBA name on line 2. d. A—An organization exempt from tax under section 501(a) or any individual retirement plan as defined in section 7701(a)(37) B—The United States or any of its agencies or instrumentalities C—A state, the District of Columbia, a U.S. commonwealth or possession, or any of their political subdivisions or instrumentalities D—A corporation the stock of which is regularly traded on one or more established securities markets, as described in Regulations section 1.1472-1(c)(1)(i) E—A corporation that is a member of the same expanded affiliated group as a corporation described in Regulations section 1.1472-1(c)(1)(i) F—A dealer in securities, commodities, or derivative financial instruments (including notional principal contracts, futures, forwards, and options) that is registered as such under the laws of the United States or any state G—A real estate investment trust H—A regulated investment company as defined in section 851 or an entity registered at all times during the tax year under the Investment Company Act of 1940 I—A common trust fund as defined in section 584(a) J—A bank as defined in section 581 K—A broker L—A trust exempt from tax under section 664 or described in section 4947(a)(1) M—A tax exempt trust under a section 403(b) plan or section 457(g) plan Note: You may wish to consult with the financial institution requesting this form to determine whether the FATCA code and/or exempt payee code should be completed.

Patterson Chairman, President and CEO 0% 20% 40% 60% 80% 100% 2005 2010 2015 2021 2022PF(2) % o f A d ju st e d E B IT D A (1 ) (1) Adjusted EBITDA is EBITDA excluding corporate costs and special items (2) Pro forma for the acquisition of Dyneema and divestiture of Distribution Specialty Transformation Commodity JVs Performance Products & Solutions Distribution Specialty Businesses 7% 46% 66% 86% 100% End Market Transformation(1) � �� �� �� �� �� �� 2006 2022PF(2) 2006 2022PF(2) (1) End market revenue as a percent of total (2) Pro forma for the acquisition of Dyneema and divestiture of Distribution Transportation Building & Construction Healthcare Packaging Consumer 57% 19% 58% 22% 14% 43% 9% 10% 8% 10% 4% 24% 20% 8% Defense 6% United States Securities and Exchange Commission Washington, DC 20549 FORM 10-K ☑ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Yes ☑ No ☐ Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. PREETE Retired Executive Vice President, Chief Strategy Officer, Monsanto Company Committees: 2*, 4 PATRICIA D.

D&I at Avient is a shared value and position, but it’s crucial for me to lead by example.” Since 2014, we have significantly increased our commercial resources in R&D, Sales and Marketing. FROM PRODUCTS INTRODUCED IN THE LAST 5 YEARS 35% of specialty sales �� �� �� �� ��� R&D Spend U .S .

PREETE Retired Executive Vice President, Chief Strategy Officer, Monsanto Company Committees: 2*, 4 PATRICIA D. Shanghai, China (d) 64. d) There are two manufacturing plants located in Shanghai, China.

Name and Principal Position (a) Year (b) Salary ($) (c) Bonus ($) (d) Stock Awards ($) (e) Option Awards ($) (f) Non-Equity Incentive Plan Compensation ($) (g) All Other Compensation ($) (h) Total ($) (i) Robert M. Rathbun — 27,438(1) 274,385(1) 548,770(1) — — — — — — 22,750(2) 182,000(2) 364,000(2) — — — — — 2/8/2021 — — — 6,717(3) 20,150(3) — 42.27 212,083 2/8/2021 — — — — — 5,050(4) — 213,464 Estimated Future Payouts Under Non-Equity Incentive Plan Awards (columns (c), (d) and (e)) (1) 2021 Annual Incentive Program Opportunities. Stock Awards (columns (d) and (e)) Column (d) reports the vesting of RSUs during 2021 on an aggregate basis.

HAFTUNGSBESCHRÄNKUNG 4.1 Unlimited Liability 4.1 Unbeschränkte Haftung The liability of Seller is not limited in the following cases: Die Haftung des Verkäufers ist in den folgenden Fällen nicht beschränkt: (A) in the event of wilful misconduct or gross negligence, (A) im Falle von Vorsatz oder grober Fahrlässigkeit, (B) within the scope of a guarantee expressly made by Seller in writing, (B) im Rahmen einer vom Verkäufer ausdrücklich und schriftlich abgegebenen Garantie, (C) in the event that a defect is maliciously concealed, (C) für den Fall, dass ein Mangel arglistig verschwiegen wurde, (D) in case of an injury to life, body or health, and (D) im Falle einer Verletzung von Leben, Körper oder Gesundheit und (E) claims under Section 1 para. 1 of the German Product Liability Act; whereby the liability of Seller for compensation claims among jointly-and-severally liable debtors pursuant to Sections 421 to 425 German Civil Code shall be excluded. HAFTUNGSBESCHRÄNKUNG 4.1 Unlimited Liability 4.1 Unbeschränkte Haftung (A) in the event of wilful misconduct or gross negligence, (A) im Falle von Vorsatz oder grober Fahrlässigkeit, (B) within the scope of a guarantee expressly made by Seller in writing, (B) im Rahmen einer vom Verkäufer ausdrücklich und schriftlich abgegebenen Garantie, (C) in the event that a defect is maliciously concealed, (C) für den Fall, dass ein Mangel arglistig verschwiegen wurde, (D) in case of an injury to life, body or health, and (D) im Falle einer Verletzung von Leben, Körper oder Gesundheit und (E) claims under Section 1 para. 1 of the German Product Liability Act; whereby the liability of Seller for compensation claims among jointly-and-severally liable debtors pursuant to Sections 421 to 425 German Civil Code shall be excluded.

All Rights Reserved 2025 4 Key messages Avient is evolving to its next phase as an innovator of materials solutions to help our customers succeed, while enabling a sustainable world Our primary focus is on organic revenue growth and margin expansion ► intersect secular trends and high growth markets with our technologies ► build businesses in high growthcatalyze growth in our core markets ► hybridization Our strategy is enabled and driven by our focus on (a) portfolio prioritization, (b) amplifying innovation, (c) digital for operational excellence and growth, and (d) leadership, talent and culture for the Avient of the future 5Copyright © .

Industri Kecil & Sederhana Simpang Ampat, Penang 14120 Malaysia Activity: Central Office, Administration, Site management (Facitilities, EHS), Marketing and Sales, SCM, Group Procurement Services, GBS and Logistics, GTI-Engineering and R&D, Technical Application Laboratories, Legal, Finance, HR, IT, RSRA, SMD and Learning, Communication Activity: Administration, Site management, Manufacture, Laboratory, Procurement, Maintenance, Infrastructure, Warehouse and Transport Facility: Avient Colorants MX S.A. de C.V.

Use of Non-GAAP Measures 4POLYONE CORPORATION INPUTS FORMULATION EXPERTISE SERVICE VALUE Base resins Additives Modifiers Pigments Expertise in Polymer Materials, Services and Solutions OEMs Brand Owners Processers Assemblers InVisiO SM Color Services IQ Design Labs LSS Customer First Specialty products & services What We Do Driving customer value 5POLYONE CORPORATION $0.13 $0.68 $0.82 $1.00 $1.31 $1.80 $1.96 $2.06 2009 2010 2011 2012 2013 2014 2015 2016* *Recast for DSS in discontinued operations PolyOne At a Glance Performance Products & Solutions 22% PolyOne Distribution 34% Specialty Engineered Materials 18% Color Additives and Inks 26% 2016 Revenue by Segment Adjusted Earnings per Share 2016 Revenue by Geography United States 60% Europe 15% Latin America 9% Canada 7% Asia 10% 6POLYONE CORPORATION 2% 43% 76% 0% 20% 40% 60% 80% 100% 2005 2010 3Q 2017 % o f O p e ra ti n g I n c o m e * *Operating Income excludes corporate charges and special items **LTM 3Q 2017 Specialty OI $5M $87M $275M** JV’s Performance Products & Solutions Specialty MixDistribution Mix Shift Highlights Specialty Transformation Distribution and Contract Manufacturing Businesses 7POLYONE CORPORATION 2014 2015 2016 2017 2014 2015 2016 2017 Driving Growth • Refreshed training curriculum for sales force • Upgraded capabilities to generate and capture new business leads • Expanded R&D resources to focus on key platforms 2014 2015 2016 2017 Investment in Commercial Resources Commercial Resource Additions* Total Sales CallsSales Opportunity Funnel (in billions) *Sales, Marketing & Technology headcount 8POLYONE CORPORATION *ROIC is defined as TTM adjusted OI after tax divided by the sum of average debt and equity less cash over a 5 quarter period Proof of Performance & 2020 Platinum Vision 20%+ 20%+ 12 - 14% 6.5 – 7.5% 15% Consistently Deliver Double Digit Annual EPS Growth 2006 YTD 2017 2020 “Where we were” “Where we are” Platinum Vision ROIC* 5.0% 13.8% Operating Income % of Sales Color, Additives & Inks 1.7% 16.4% Specialty Engineered Materials 1.1% 13.1% Performance Products & Solutions 5.5% 11.4% Distribution 2.6% 6.6% 9POLYONE CORPORATION $50 $116 $137 $0 $40 $80 $120 $160 $200 2012 2014 2016 2017 10.8% 11.3% 12.9% 13.8% 10.0% 11.0% 12.0% 13.0% 14.0% 15.0% 2012 2014 2016 3Q 2017 2020 Platinum Vision Free Cash Flow (in millions) ROIC* *ROIC is defined as TTM adjusted OI after tax divided by the sum of average debt and equity less cash over a 5 quarter period Free Cash Flow and Improving Returns 15.0% >$200 10POLYONE CORPORATION $0.16 $0.20 $0.24 $0.32 $0.40 $0.48 $0.54 $0.70 $- $0.10 $0.20 $0.30 $0.40 $0.50 $0.60 $0.70 $0.80 $0.90 $1.00 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 Annual Dividend 7 Consecutive Years of Increased Dividends 3-Year Dividend Plan  Announced 30% increase to dividend in October 2017, reflecting strong and sustainable cash flow as well as confidence in future earnings growth  Expect to increase annual dividend 60% or more cumulatively over next three years 11POLYONE CORPORATION $767M Returning Cash to Shareholders $0 $150 $300 $450 $600 $750 2011 2012 2013 2014 2015 2016 3Q 2017 Cumulative Share Repurchases (in millions)  Since 2011, we have returned over $950 million to shareholders  $192 million returned through dividends  $767 million returned through share repurchases  Have repurchased 20.8 million shares since early 2013 $767M 12POLYONE CORPORATION  Expanding our sales, marketing, and technical capabilities  Investing in operational and LSS initiatives  ~60 - 70% of capital expenditures fund growth initiatives Organic Growth Acquisitions Share Repurchases Dividends  Targets that expand our: • Specialty offerings • End market presence • Geographic breadth  Growth synergies  Adjacent material solutions  Repurchased 2.0 million shares YTD 2017  Repurchased 20.8 million shares since early 2013  6.5 million shares are available for repurchase under the current authorization  Increased annual dividend by 30% to $0.70 per share, representing the seventh consecutive year of dividend growth Free Cash Flow and Strong Balance Sheet Fund Investment / Shareholder Return 13POLYONE CORPORATION *Specialty Platform revenue from products introduced in last five years Vitality Index Progression* 12% 42% 2006 2016 Target ≥ 35% Innovation Drives Earnings Growth Innovation Pipeline Potential $20 $54 2006 2016 Research & Development Spending ($ millions) Phase 1 Frame Opportunity 12 Projects Phase 2 Build Business Case 10 Projects Phase 3 Prototype 21 Projects Phase 4 Scale-up & Test Market 19 Projects Phase 5 Commercial Launch 10 Projects $500 Million $1.4 Billion $700 Million Total Specialty Addressable Market of over $2.6 Billion 14POLYONE CORPORATION Key Innovation Growth Drivers Composites Barrier Additive Technology Fiber Colorants Flame Retardant Polymers  Increasing regulatory drive for halogen replacements  $400m addressable market  Drive to prevent oxygen, light and UV rays from affecting contents in PET packaging, extending shelf life  $200m addressable market  60% of world fiber consumption is synthetic, need to simplify manufacturing and eliminate waste  $300m addressable market  Polymer formulation and process engineering create a pipeline for next generation materials  Drive to replace aluminum and steel with plastics without compromising on strength 15POLYONE CORPORATION  Providing LSS services to small/medium sized customers  54% of associates trained in LSS, with over 125 active black belts  Have trained over 30 customers in LSS methodology  Providing training in Customer Centric Selling Skills with customers  Providing Industrial design and color services to small/medium sized customers  On time delivery above 95% Strengthening relationships: Customer First Through World-Class Service 16POLYONE CORPORATION  Addressable market exceeds $40 billion  Strong performance demonstrates that our strategy and execution are working  Megatrends and emerging opportunities align with strengths  Innovation and services provide differentiation, incremental pricing power and competitive advantage  Strategic reinvestment for growth while returning cash to shareholders  Strong and proven management team driving growth and performance Why Invest In PolyOne?