CONTAINER OEM S T O C K T A N K • Reduce container weight • Optimize throughput and provide internal training to sustain processing optimization • Minimize scrap • Improve surface appearance • Deployed an experienced field technician who was able to reduce tank weight by 30% through processing adjustments • Provided an additional lightweighting opportunity with an optimized gas / chemical foaming agent (CFA) process • Trained customer on CFA processing and collaborated to create a new CFA offering for further optimization • Made adjustments resulting in lower scrap rates and improved part appearance Dedicated Onsite Field Technical Service KEY REQUIREMENTS WHY AVIENT?

View PDF The SQS herewith attests that the organisation named below has a management system that meets the requirements of the normative base mentioned. 7 0 0 1 _1 /A p ri l 2 0 2 2 /V er si o n 2 .0 Certificate Avient Colorants Germany GmbH Kornkamp 50 22926 Ahrensburg Germany Scope Production of Color- and Additives Concentrates, Compounds and Foaming Agents Normative base ISO 50001:2018 Energy Management System Reg. no. 46090 Page 1 of 1 Validity 20. 01. 2024  – 19. 01. 2027 Issue 20. 01. 2024  A.Grisard, President SQS F.

Ltd. 30, Hsing Pang Road 33068 Taoyuan Taiwan Scope Design and manufacture of colour and additive concentrates and specialty compounds for the Healthcare and Medical device market.

Lewiston, ME, 04240 United States of America Scope Avient CAI Design and manufacture of colour and additive concentrates and specialty compounds for the Healthcare and Medical device market.

CERTIFICATE Signed for the certification body: Eric Louys Chairman Certification Committee CERTIFICATE EN ISO 50001 : 2018 Energy Management System VINÇOTTE nv Jan Olieslagerslaan 35, 1800 Vilvoorde, Belgium This is to certify that Avient Located at Rue Melville Wilson 2 5330 Assesse Belgium has established and maintains an energy management system according the requirements of EN ISO 50001 : 2018 “Energy Management System” for: Design and manufacture of colour and additive concentrates, thermoplastic resins and speciality compounds This certificate is based on the result of an energy audit documented in the audit report 61231731.

In addition to the information contained in this document, which is focused on quality systems and management, Avient has prepared a separate summary of Avient’s Environmental, Social and Governance (ESG) policies and practices that is available upon request. Some have additional certifications such as ISO 13485, ISO 14000, ISO 22000 and other third-party certified standards such as Responsible Care® and IATF. Core processes that may be additional at the ISO 13485 sites include the following as they relate to the Mevopur medical line of products: Change control All changes concerning any Mevopur products are evaluated to determine whether there will be any impact on the product specification or the quality of the product.

Hydrocerol Chemical Foaming Agents simply require an accurate additive or color concentrate feeder/ blender, which is usually on hand at most molders. ADDITION LEVELS OF FOAMING AGENTS Both the foaming agent and the thermoplastic resins are metered into the injection molding machine. It is the responsiblity of the manfuacturer to determine the appropriate processes and additives in the manufacture of its products.

In addition, operating income before special items and adjusted EPS are components of various PolyOne annual and long-term employee incentive plans S&P 500 -150% -50% 50% 150% 250% 350% 450% 550% POL S&P 500 All time high of $43.34 July 1st, 2014 PolyOne Corporation Page 9 2006 2014 YTD 2015 “Where we were” “Where we are” Target 1) Operating Income % Specialty: Global Color, Additives & Inks 1.7% 14.9% 12 – 16% Global Specialty Engineered Materials 1.1% 12.1% 12 – 16% Designed Structures & Solutions -- 7.6% 8 – 10% Performance Products & Solutions 5.5% 8.1% 9 – 12% Distribution 2.6% 6.2% 6 – 7.5% 2) Specialty Platform % of Operating Income 6.0% 65% 65 – 75% 3) ROIC* 5.0% 10.6% 15% 4) Adjusted EPS Growth N/A 37% Double Digit Expansion Proof of Performance & 2015 Goals *ROIC is defined as TTM adjusted OI divided by the sum of average debt and equity over a 5 quarter period PolyOne Corporation Page 10 32% Adjusted EPS CAGR from 2011 2015 EPS: $2.50 2011 EPS: $0.82 Continued Gross Margin Expansion Mergers & Acquisitions Spartech Accretion Incremental Share Buybacks Ongoing LSS Programs (50-100 bps/yr) Accelerated Innovation & Mix Improvement Several Levers to Drive Growth Mid Single Digit Revenue Growth PolyOne Corporation Page 11 Innovation Drives Earnings Growth *Percentage of Specialty Platform revenue from products introduced in last five years $20 $53 2006 2013 Research & Development Spending ($ millions) Specialty Platform Vitality Index Progression* 14% 31% 2006 2013 Specialty Platform Gross Margin % 20% 43% 2006 2013 Specialty Vitality Index Target ≥ 35% Vitality Products + 700 to 1000 bps 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) TBD TBD $800 $450 $450 $1,700 PolyOne Corporation Page 13 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 14 60% 100% 20% 30% 40% 50% 60% 70% 80% 90% 100% 2008 2014 Pension Funding** As of September 30, 2014 Debt Maturities & Pension Funding – 9/30/14 Net Debt / EBITDA* = 1.7x $48 $317 $600 $0 $100 $200 $300 $400 $500 $600 $700 $800 2015 2020 2023 Debt Maturities As of September 30, 2014 ($ millions) Coupon Rates: 7.500% 7.375% 5.250% ** includes US-qualified pension plans only *TTM 9/30/2014 PolyOne Corporation Page 15 Free Cash Flow and Strong Balance Sheet Fund Investment / Shareholder Return Expanding our sales, marketing, and technical capabilities Targets that expand our: • Specialty offerings • End market presence • Geographic footprint • Operating Margin Synergy opportunities Adjacent material solutions Repurchased 1.5 million shares in Q3 2014 Repurchased 9.7 million shares since early 2013 10.3 million shares are available for repurchase under the current authorization Organic Growth Acquisitions Share Repurchases Dividends  Investing in operational and LSS initiatives (including synergy capture) Manufacturing alignment $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 PolyOne Corporation Page 16 PolyOne Core Values Innovation Collaboration Excellence PolyOne Corporation Page 17 The New PolyOne: A Specialty Growth Company Why Invest In PolyOne? Platform operating income mix percentage 2005Y* 2008Y* 2010Y* 2013Y Q3 2014 YTD Global Color, Additives and Inks $ 4.3 $ 28.1 $ 37.7 $ 104.0 $ 98.2 Global Specialty Engineered Materials 0.4 17.6 49.7 57.2 55.6 Designed Structures and Solutions - - - 33.4 37.2 Specialty Platform $ 4.7 $ 45.7 $ 87.4 $ 194.6 $ 191.0 Performance Products and Solutions 75.7 31.3 54.0 56.0 51.4 Distribution 19.5 28.1 42.0 63.3 53.2 Joint ventures 91.9 28.6 18.9 - - Corporate and eliminations (51.5) (425.1) (27.7) (82.4) (126.2) Operating income (loss) GAAP $ 140.3 $ (291.4) $ 174.6 $ 231.5 $ 169.4 Less: Corporate operating expense 51.5 425.1 27.7 82.4 126.2 Operating income excluding Corporate $ 191.8 $ 133.7 $ 202.3 $ 313.9 $ 295.6 Specialty platform operating mix percentage 2% 34% 43% 62% 65% * Historical results include the Resin and Specialty Coatings businesses within the Performance Products and Solutions segment.

In addition, operating income before special items and adjusted EPS are components of various PolyOne annual and long-term employee incentive plans S&P 500 -150% -50% 50% 150% 250% 350% 450% 550% POL S&P 500 All time high of $43.34 July 1st, 2014 PolyOne Corporation Page 9 2006 2014 YTD 2015 “Where we were” “Where we are” Target 1) Operating Income % Specialty: Global Color, Additives & Inks 1.7% 14.9% 12 – 16% Global Specialty Engineered Materials 1.1% 12.1% 12 – 16% Designed Structures & Solutions -- 7.6% 8 – 10% Performance Products & Solutions 5.5% 8.1% 9 – 12% Distribution 2.6% 6.2% 6 – 7.5% 2) Specialty Platform % of Operating Income 6.0% 65% 65 – 75% 3) ROIC* 5.0% 10.6% 15% 4) Adjusted EPS Growth N/A 37% Double Digit Expansion Proof of Performance & 2015 Goals *ROIC is defined as TTM adjusted OI divided by the sum of average debt and equity over a 5 quarter period PolyOne Corporation Page 10 32% Adjusted EPS CAGR from 2011 2015 EPS: $2.50 2011 EPS: $0.82 Continued Gross Margin Expansion Mergers & Acquisitions Spartech Accretion Incremental Share Buybacks Ongoing LSS Programs (50-100 bps/yr) Accelerated Innovation & Mix Improvement Several Levers to Drive Growth Mid Single Digit Revenue Growth PolyOne Corporation Page 11 Innovation Drives Earnings Growth *Percentage of Specialty Platform revenue from products introduced in last five years $20 $53 2006 2013 Research & Development Spending ($ millions) Specialty Platform Vitality Index Progression* 14% 31% 2006 2013 Specialty Platform Gross Margin % 20% 43% 2006 2013 Specialty Vitality Index Target ≥ 35% Vitality Products + 700 to 1000 bps 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) TBD TBD $800 $450 $450 $1,700 PolyOne Corporation Page 13 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 14 60% 100% 20% 30% 40% 50% 60% 70% 80% 90% 100% 2008 2014 Pension Funding** As of September 30, 2014 Debt Maturities & Pension Funding – 9/30/14 Net Debt / EBITDA* = 1.7x $48 $317 $600 $0 $100 $200 $300 $400 $500 $600 $700 $800 2015 2020 2023 Debt Maturities As of September 30, 2014 ($ millions) Coupon Rates: 7.500% 7.375% 5.250% ** includes US-qualified pension plans only *TTM 9/30/2014 PolyOne Corporation Page 15 Free Cash Flow and Strong Balance Sheet Fund Investment / Shareholder Return  Expanding our sales, marketing, and technical capabilities  Targets that expand our: • Specialty offerings • End market presence • Geographic footprint • Operating Margin  Synergy opportunities  Adjacent material solutions  Repurchased 1.5 million shares in Q3 2014  Repurchased 9.7 million shares since early 2013  10.3 million shares are available for repurchase under the current authorization Organic Growth Acquisitions Share Repurchases Dividends  Investing in operational and LSS initiatives (including synergy capture)  Manufacturing alignment $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 PolyOne Corporation Page 16 PolyOne Core Values Innovation Collaboration Excellence PolyOne Corporation Page 17 The New PolyOne: A Specialty Growth Company Why Invest In PolyOne? Platform operating income mix percentage 2005Y* 2008Y* 2010Y* 2013Y Q3 2014 YTD Global Color, Additives and Inks $ 4.3 $ 28.1 $ 37.7 $ 104.0 $ 98.2 Global Specialty Engineered Materials 0.4 17.6 49.7 57.2 55.6 Designed Structures and Solutions - - - 33.4 37.2 Specialty Platform $ 4.7 $ 45.7 $ 87.4 $ 194.6 $ 191.0 Performance Products and Solutions 75.7 31.3 54.0 56.0 51.4 Distribution 19.5 28.1 42.0 63.3 53.2 Joint ventures 91.9 28.6 18.9 - - Corporate and eliminations (51.5) (425.1) (27.7) (82.4) (126.2) Operating income (loss) GAAP $ 140.3 $ (291.4) $ 174.6 $ 231.5 $ 169.4 Less: Corporate operating expense 51.5 425.1 27.7 82.4 126.2 Operating income excluding Corporate $ 191.8 $ 133.7 $ 202.3 $ 313.9 $ 295.6 Specialty platform operating mix percentage 2% 34% 43% 62% 65% * Historical results include the Resin and Specialty Coatings businesses within the Performance Products and Solutions segment.

In addition, operating income before special items and adjusted EPS are components of various PolyOne annual and long-term employee incentive plans S&P 500 -150% -50% 50% 150% 250% 350% 450% 550% POL S&P 500 All time high of $43.34 July 1st, 2014 PolyOne Corporation Page 9 2006 2014 YTD 2015 “Where we were” “Where we are” Target 1) Operating Income % Specialty: Global Color, Additives & Inks 1.7% 15.2% 12 – 16% Global Specialty Engineered Materials 1.1% 11.8% 12 – 16% Designed Structures & Solutions -- 7.1% 8 – 10% Performance Products & Solutions 5.5% 8.0% 9 – 12% Distribution 2.6% 6.0% 6 – 7.5% 2) Specialty Platform % of Operating Income 6.0% 66% 65 – 75% 3) ROIC* 5.0% 9.9% 15% 4) Adjusted EPS Growth N/A 40% Double Digit Expansion Proof of Performance & 2015 Goals *ROIC is defined as TTM adjusted OI divided by the sum of average debt and equity over a 5 quarter period (Est. in 2012) PolyOne Corporation Page 10 Bridge to $2.50 Adjusted EPS by 2015 2015 EPS: $2.50 2013 EPS: $1.31 Continued Gross Margin Expansion Mergers & Acquisitions Spartech Accretion Incremental Share Buybacks Ongoing LSS Programs (50-100 bps/yr) Accelerated Innovation & Mix Improvement Several Levers to Drive Growth Mid Single Digit Revenue CAGR PolyOne Corporation Page 11 Innovation Drives Earnings Growth *Percentage of Specialty Platform revenue from products introduced in last five years $20 $53 2006 2013 Research & Development Spending ($ millions) Specialty Platform Vitality Index Progression* 14.3% 30.7% 2006 2013 Specialty Platform Gross Margin % 19.5% 43.0% 2006 2013 Specialty Vitality Index Target ≥ 35% 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) TBD TBD $800 $450 $450 $1,700 *Pipeline as of May 29, 2014 as presented during our Innovation Day PolyOne Corporation Page 13 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 14 60% 100% 20% 30% 40% 50% 60% 70% 80% 90% 100% 2008 2014 Pension Funding** As of June 30, 2014 Debt Maturities & Pension Funding – 6/30/14 Net Debt / EBITDA* = 1.8x $48 $317 $600 $0 $100 $200 $300 $400 $500 $600 $700 $800 2015 2020 2023 Debt Maturities As of June 30, 2014 ($ millions) Coupon Rates: 7.500% 7.375% 5.250% ** includes US-qualified pension plans only *TTM 6/30/2014 PolyOne Corporation Page 15 Free Cash Flow and Strong Balance Sheet Fund Investment / Shareholder Return $0.16 $0.20 $0.24 $0.32 $0.10 $0.20 $0.30 $0.40 2011 2012 2013 2014 Annual Dividend  Expanding our sales, marketing, and technical capabilities  Targets that expand our: • Specialty offerings • End market presence • Geographic footprint • Operating Margin  Synergy opportunities  Adjacent material solutions  Repurchased 1.8 million shares in Q2 2014  Repurchased 8.2 million shares since early 2013  11.8 million shares are available for repurchase under the current authorization Organic Growth Acquisitions Share Repurchases Dividends  Investing in operational and LSS initiatives (including synergy capture)  Manufacturing alignment PolyOne Corporation Page 16 PolyOne Core Values Innovation Collaboration Excellence PolyOne Corporation Page 17 The New PolyOne: A Specialty Growth Company Why Invest In PolyOne? Platform operating income mix percentage 2005Y* 2008Y* 2010Y* 2013Y 2014 Q2 Global Color, Additives and Inks $ 4.3 $ 28.1 $ 37.7 $ 104.0 $ 68.1 Global Specialty Engineered Materials 0.4 17.6 49.7 57.2 37.2 Designed Structures and Solutions - - - 33.4 24.1 Specialty Platform $ 4.7 $ 45.7 $ 87.4 $ 194.6 $ 129.4 Performance Products and Solutions 75.7 31.3 54.0 56.0 33.6 Distribution 19.5 28.1 42.0 63.3 34.5 Joint ventures 91.9 28.6 18.9 - - Corporate and eliminations (51.5) (425.1) (27.7) (82.4) (91.7) Operating income (loss) GAAP $ 140.3 $ (291.4) $ 174.6 $ 231.5 $ 105.8 Less: Corporate operating expense 51.5 425.1 27.7 82.4 91.7 Operating income excluding Corporate $ 191.8 $ 133.7 $ 202.3 $ 313.9 $ 197.5 Specialty platform operating mix percentage 2% 34% 43% 62% 66% * Historical results include the Resin and Specialty Coatings businesses within the Performance Products and Solutions segment.