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.

سياسة Avient العالمية لمكافحة الرشوة والفساد تاريخ الإصدار: 1 يوليو 2020 1 سياستنا العالمية لمكافحة الرشوة والفساد 1 أهمية الامتثال 1 مسؤوليتنا 2 ما هي الرشوة؟ 2 تقديم رشوة للمسؤولين الحكوميين 2 الرشوة التجارية 2 مدفوعات التيسير والعملات الخفية 3 العمل مع الوكلاء والموزعين والأطراف الخارجية الأخرى 3 العناية الواجبة وعملية الموافقة 3 مؤشرات التحذير 3 المتطلبات المحاسبية وحفظ السجلات 3 الإبلاغ عن الانتهاكات المحتملة 4 Avient الخط الساخن للأخلاقيات في 4 الحماية من الانتقام 5 المرجع السريع: الممارسات المسموح بها والمحظورة بشأن مكافحة الرشوة والفساد   1 سياستنا العالمية لمكافحة الرشوة والفساد ہماری عالمگیر پالیسی تحظر Avient بشدة الغش والرشوة وغيرها من الممارسات التجارية الفاسدة في جميع عملياتها في أي مكان في العالم. .Avient إجراء إدخالات مضللة أو ناقصة أو خاطئة في دفاتر وسجلات تجاهل مؤشرات التحذير عند التعامل مع الأطراف الخارجية. • أمريكا الشمالية المقر العالمي آفون ليك، الولايات المتحدة الأمريكية 33587 ووكر رود آفون ليك، أوهايو ، الولايات المتحدة 44012 الخط المجاني: 9663 765 866 1+ الهاتف: 1000 930 440 1+ الفاكس:3064 930 440 1+ آسيا والمحيط الهادئ المقر الإقليمي بشنغهاي الصين 2ف، بلوك سي 200 جينسو رود بودونغ، 201206، شنغهاي، الصين الهاتف: 4888 6028 21 (0) 86+ الفاكس:4999 6028 21 (0) 86+ أمريكا الجنوبية المقر الإقليمي ساو باولو ، البرازيل جادة فرانسيسكو ناكاساتو، 1700 000- 13295إتوبيفا، ساو باولو، البرازيل الهاتف: 9200 4593 11 55+ أوروبا المقر الإقليمي بومرلوتش، لوكسمبورغ 19 طريق باستون بومرلوتش، لوكسمبورغ، L-9638 الهاتف: 35 050 269 352+ الفاكس: 45 050 269 352+ www.avient.com http://www.avient.com

PolyOne Corporation Page 1 PolyOne Investor Presentation Wells Fargo Industrial & Construction 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. S&P 500 PolyOne Corporation Page 9 2006 Q1 2015 2015 Target “Where we were” “Where we are” (Est. in 2012) 1) Operating Income % Specialty: Global Color, Additives & Inks 1.7% 16.2% 12 – 16% Global Specialty Engineered Materials 1.1% 16.3% 12 – 16% Designed Structures & Solutions 1.4% (2012) 2.7% 8 – 10% Performance Products & Solutions 5.5% 6.5% 9 – 12% Distribution 2.6% 5.9% 6 – 7.5% 2) Specialty Platform % of Operating Income 6.0% 69% 65 – 75% 3) ROIC 5.0% 11.4% 15% 4) Adjusted EPS Growth N/A 5% Double Digit Expansion Proof of Performance & 2015 Goals PolyOne Corporation Page 10 Innovation Drives Earnings Growth *Percentage of Specialty Platform revenue from products introduced in last five years $20 $53 2006 2014 Research & Development Spending ($ millions) Specialty Platform Vitality Index Progression* 14% 27% 2006 2014 Specialty Platform Gross Margin % 20% 44% 2006 2014 Specialty Vitality Index Target ≥ 35% PolyOne Corporation Page 11 Megatrends Aligned with Key End Markets Decreasing Dependence on Fossil Fuels Protecting the Environment Improving Health and Wellness Megatrend End Markets Globalizing and Localizing Health & Wellness Transportation Packaging Consumer PolyOne Corporation Page 12 Prototype Frame Opportunity Scale-up & Test Market Build Business Case Commercial Launch Phase 1 Phase 2 Phase 3 Phase 4 Phase 5 4 11 5 10 6 9 3 4 2 15 9 1 10 4 Breakthrough Platform Derivative A Rich Pipeline of Opportunity Number of Projects 25 14 19 17 18 93 Addressable Market ($ millions) $800 $450 $450 $1,700 PolyOne Corporation Page 13 60% 98% 20% 30% 40% 50% 60% 70% 80% 90% 100% 2008 Q1 2015 Pension Funding** As of March 31, 2015 Debt Maturities & Pension Funding – 3/31/15 Net Debt / EBITDA* = 2.1x $49 $317 $600 $0 $100 $200 $300 $400 $500 $600 $700 $800 2015 2020 2023 Debt Maturities As of March 31, 2015 ($ millions) Coupon Rate: 7.500% 7.375% 5.250% ** includes US-qualified pension plans only *TTM 3/31/2015 PolyOne Corporation Page 14 Free Cash Flow and Strong Balance Sheet Fund Investment / Shareholder Return  Expanding our sales, marketing, and technical capabilities  Investing in operational and LSS initiatives  ~75% of capital expenditures fund growth initiatives Organic Growth Acquisitions Share Repurchases Dividends $0.16 $0.20 $0.24 $0.32 $0.40 $0.10 $0.20 $0.30 $0.40 $0.50 2011 2012 2013 2014 2015 Annual Dividend  Targets that expand our: • Specialty offerings • End market presence • Geographic breadth  Synergy opportunities  Adjacent material solutions  Repurchased over 500k shares in Q1 2015  Repurchased 11.8 million shares since early 2013  8.2 million shares are available for repurchase under the current authorization PolyOne Corporation Page 15 PolyOne Core Values Innovation Collaboration Excellence PolyOne Corporation Page 16 The New PolyOne: A Specialty Growth Company Why Invest In PolyOne? 1) Special items are a non-GAAP financial measure.

Figure 1.: Two shot injection molding machine with parallel barrels. Each of the chemistries offer the properties governed by the building blocks. 1. Reference: solutions that 1.

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

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 Sensor, Camera Sensor, Camera Sensor, Camera 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 1.5E+4 1.0E+2 to 1.0E+4 1.0E+2 to 1.0E+5 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. Integrated EMI/RFI shielding – Stat-Tech material has integrated EMI/RFI shielding to prevent crosstalk between components, with effectiveness up to 70 dB (10GHz, 1/8" thickness).

KEY CHARACTERISTICS • Formulated with 25–100% recycled resin from PIR & PCR sources • Reduces waste and supports the circular economy • Achieves equivalent performance to standard polyolefin formulations • Can be recycled at end of life • Provides good stiffness, durability, impact resistance and UV stability • Enables customized performance characteristics depending on application need MARKETS AND APPLICATIONS Maxxam REC Polyolefins are suitable for use across many industries and applications where traditional polyolefin materials are used, including: • Transportation - HVAC systems, engine guards, battery housings, flame retardant applications • Industrial - Structural parts, furniture • Consumer - Household appliances, personal care items, packaging, office supplies, food contact applications • Electrical and Electronic – Housings, buttons, junction boxes SUSTAINABILITY BENEFITS • Formulated with 25–100% recycled resin from PIR and/or PCR sources • Reduces waste and supports the circular economy • Reduces carbon footprint • Can be recycled at end of life PRODUCT BULLETIN CHARACTERISTICS UNITS Maxxam REC RS5200-5029 C BLACK X2 Maxxam REC MX5200-5036 HS I BLACK Maxxam REC MX5200-5037 Maxxam REC MX5200-5038 Maxxam REC MX5200-5039 Filler/ Reinforcement – Unfilled Unfilled 20% Mineral 40% Mineral 30% Glass Fiber Recycled Content – 95% PCR 97% PIR 75% PIR 55% PIR 65% PIR Density (ISO 1183) g/ccm 0.93 0.95 1.09 1.28 1.15 Tensile Modulus (ISO 527-1) MPa 1250 950 1500 2150 4250 Tensile Stress (ISO 527-2) MPa 25 175 10 15 50 Tensile Strain Break (ISO 527-2) % >20 >80 >30 17 4.5 Charpy Notched (ISO 179) kJ/m 3 8 5 4 11 TECHNICAL PERFORMANCE CHARACTERISTICS UNITS Maxxam REC RS5200-5026 RS NHFR BLACK 70 Maxxam REC FR H8 V2 BLACK RG 70 Maxxam REC L6 GF/30 H BLACK T RG 70 Maxxam REC MX5200-5027 RS HS BLACK RG Maxxam REC MX5200-5028 RS HS BLACK RG Maxxam REC C10 H-UV AS EP RG BLACK 70 Filler/ Reinforcement – 30% Glass Fiber Unfilled 30% Glass Fiber 30% Glass Fiber 40% Talcum Unfilled Recycled Content – 37% PIR 90% PIR 55% PIR 35% PIR 50% PIR 25% PIR Density (ISO 1183) g/ccm 1.42 0.950 1.13 1.15 1.23 1.03 Tensile Modulus (ISO 527-1) MPa 8250 1300 6100 6400 – 700 Tensile Stress (ISO 527-2) MPa 71.0 30.0 70.0 70.0 28.0 15.0 Notched Izod (ISO 180) kJ/m – 4.0 10 5.8 2.7 No Break Flame Rating @ 1.6mm thickness (UL 94) – V-0 V-2 HB HB HB HB TECHNICAL PERFORMANCE Copyright © 2023, Avient Corporation.

KEY CHARACTERISTICS • Intended for use in a variety of thermoset epoxy systems • Based on heat stability, lightfastness, weatherability and toxicity • Use level is 1%–2% for thick casting and 5%–10% for a thin coating APPLICATIONS Stan-Tone EPX dispersions are suitable for use in a variety of applications, including: • Protective coatings • Adhesives • Epoxy flooring • Electrical potting • Composites • Laminates Stan-Tone Code Pigment Type Approx. % Pigment Specific Gravity Color Index Lightfastness WHITE 10EPX03 Titanium Dioxide, Rutile 57 1.95 PW-6 I/O YELLOW 12EPX01 Diarylide AAOT GS 25 1.22 PY-14 I 12EPX03 Diarylide HR RS 20 1.2 PY-83 I/O (Mass) 13EPX02 Isoindolinone RS 30 1.3 PY-110 I/O 13EPX03 Benzimidazolone GS 40 1.27 PY-151 I/O (Mass) 81EPX01 Iron Oxide 40 1.62 PY-42 I/O ORANGE 15EPX03 Benzimidazolone 30 1.26 PO-36 I/O RED 23EPX04 Quinacridone BS 25 1.21 PV-19 I/O 23EPX06 Specialty Naphthol BS 30 1.21 PR-170 I/O (Mass) C 25EPX01 Red 2B, Ca Salt Bs 24 1.27 PR-48:2 I/O (Mass) 28EPX01 Red 2B, Ba Salt YS 23 1.29 PR-48:1 I/O (Mass) 82EPX01 Iron Oxide, Light BS 40 1.67 PR-101 I/O 82EPX02 Iron Oxide, Dark BVS 40 1.68 PR-101 I/O 82EPX04 Iron Oxide, Light VYS 40 1.67 PR-101 I/O BLUE 40EXP03 Phthalocyanine GS 25 1.25 PB-15:3 I/O 40EXP05 Phthalocyanine RS 25 1.25 PB-15:3 I/O 42EXP02 Ultramarine 50 1.54 PB-29 I/O 49EXP01 Cobalt 50 1.83 PB-28 I/O GREEN 50EPX02 Phthalocyanine BS 18 1.34 PG-7 I/O 50EPX03 Phthalocyanine YS 25 1.42 PG-7 I/O 59EPX01 Chromium Oxide 40 1.64 PG-17 I/O VIOLET/MAGENTA 24EPX03 Quinacridone Violet 15 1.2 PV-19 I/O 24EPX04 Ultramarine Violet 50 1.66 PV-15 I/O 24EPX05 Quinacridone Magenta 20 1.21 PR-122 I/O 24EPX06 Benzimidazolone 20 1.2 PV-32 I/O 24EPX07 Carbazole Violet 15 1.2 PV-23 I/O BROWN/TAN 83EPX01 Iron Oxide, Light 39 1.64 PBr-6 I/O 83EPX02 Iron Oxide, Dark 40 1.66 PBr-6 I/O BLACK 90EPX01 Furnace - High Jet 14 1.23 PBk-7 I/O 90EPX04 Furnace - Medium 20 1.25 PBk-7 I/O 90EPX05 Iron Oxide 50 1.77 PBk-11 I/O EPX RS = Red Shade YS = Yellow Shade VYS = Very Yellow Shade BS = Blue Shade VBS = Very Blue Shade GS = Green Shade HR = Heat-Resistant LIGHTFASTNESS I = Indoor Only I/O = Indoor or Outdoor Mass = Outdoor Masstone Application Only C = Some Caution Advised www.avient.com Copyright © 2020, Avient Corporation.

Wavelength (nm) – C93 Control 5 – Ultimate UV390-1 @ 0.15% 1 – UV390R 3 90 80 70 60 50 40 30 20 10 0 300 350 400 450 500 550 600 650 700 Tr an sm is si on (% ) 1.844.4AVIENT www.avient.com Copyright © 2023, Avient Corporation.