Edgetek™ HIGH PERFORMANCE FORMULATIONS PROCESSING GUIDE Edgetek™ The Edgetek™ High Performance Formulations portfolio covers a broad range of standard and custom formulated materials. This portfolio includes high-temperature materials for elevated service temperature environments, high-modulus/structural materials for load-bearing and high-strength applications, and flame-retardant products. PROBLEM CAUSE SOLUTION Excessive Shrink Too much orientation • Increase packing time and pressure • Increase hold pressure • Decrease melt temperature • Decrease mold temperature • Decrease injection speed • Decrease screw rpm • Increase venting • Increase cooling time Not Enough Shrink Too little orientation • Decrease packing pressure and time • Decrease hold pressure • Increase melt temperature • Increase mold temperature • Increase injection speed • Increase screw rpm • Decrease cooling time Burning Melt and/or mold temperature too hot Mold design Moisture • Decrease nozzle and barrel temperatures • Decrease mold temperature • Clean, widen and increase number of vents • Increase gate size or number of gates • Verify material is dried at proper conditions Nozzle Drool Nozzle temperature too hot • Decrease nozzle temperature • Decrease back pressure • Increase screw decompression • Verify material has been dried at proper conditions Weld Lines Melt front temperatures too low • Increase pack and hold pressure • Increase melt temperature • Increase vent width and locations • Increase injection speed • Decrease injection speed • Increase gate size • Perform short shots to determine fill pattern and verify proper vent location • Add vents and/or false ejector pin • Move gate location Warp Excessive orientation • Increase cooling time • Increase melt temperature • Decrease injection pressure and injection speed • Increase number of gates Sticking in Mold Cavities are overpacked Part is too hot • Decrease injection speed and pressure • Decrease pack and hold pressure • Decrease nozzle and barrel temperatures • Decrease mold temperature • Increase cooling time • Increase draft angle • Decrease nozzle and barrel temperatures • Decrease mold temperature TROUBLESHOOTING RECOMMENDATIONS PROBLEM CAUSE SOLUTION Incomplete Fill Melt and/or mold temperature too cold Shot Size • Increase nozzle and barrel temperatures • Increase mold temperature • Increase injection speed • Increase pack and hold pressure • Increase nozzle tip diameter • Check thermocouples and heater bands • Enlarge or widen vents and increase number of vents • Check that vents are unplugged • Check that gates are unplugged • Enlarge gates and/or runners • Perform short shots to determine fill pattern and verify proper vent location • Increase wall thickness to move gas trap to parting line • Increase cushion Brittleness Melt temperature too low Degraded/Overheated material Gate location and/or size • Increase melt temperature • Increase injection speed • Measure melt temperature with pyrometer • Decrease melt temperature • Decrease back pressure • Use smaller barrel/excessive residence time • Relocate gate to nonstress area • Increase gate size to allow higher flow speed and lower molded-in stress Fibers on Surface (Splay) Melt temperature too low Insufficient packing • Increase melt temperature • Increase mold temperature • Increase injection speed • Increase pack and hold pressure, and time Sink Marks Part geometry too thick Melt temperature too hot Insufficient material volume • Reduce wall thickness • Reduce rib thickness • Decrease nozzle and barrel temperatures • Increase shot size • Increase injection rate • Increase packing pressure Flash Injection pressure too high Excess material volume Melt and/or mold temperature too hot • Decrease injection pressure • Increase clamp pressure • Decrease injection speed • Increase transfer position • Decrease pack pressure • Decrease shot size • Decrease injection speed • Decrease nozzle and barrel temperatures • Decrease mold temperature • Decrease screw speed TROUBLESHOOTING RECOMMENDATIONS www.avient.com Copyright © 2020, Avient Corporation.

No. 0562.01) 11/30/2023 Page 1 of 1 SCOPE OF ACCREDITATION TO ISO/IEC 17025:2017 AVIENT CORPORATION 733 East Water Street North Baltimore, OH 45872 Claire Holman Phone: (419) 257-1327 MECHANICAL Valid To: October 31, 2025 Certificate Number: 0562.01 In recognition of the successful completion of the A2LA evaluation process, accreditation is granted to this laboratory to perform the following automotive plastics tests: Test Method: Test Name: ASTM D412 Tensile ASTM D523 Specular Gloss ASTM D618 (A) Conditioning of Plastics ASTM D624 (Die C) Tear Strength ASTM D638 Tensile Properties ASTM D792 (A) Density and Specific Gravity by Displacement ASTM D1004 Initial Tear Resistance ASTM D1203 (A) Volatile Loss ASTM D1895 (A) Apparent Density, Bulk Factor, Pourability ASTM D1921 Particle Size (Sieve Analysis) ASTM D2240 Durometer Hardness (Shore A and D) ASTM E1331 Color by Spectrophotometry Using Hemispherical Geometry FMVSS 571.302 Flammability FORD BN-102-01 (A) Low Temperature Flexibility FORD BO-131-03 Interior Odor ISO 3795 Determination of Burning Behavior of Interior Materials SAE J323 (A) Cold Cracking (Mandrel Bend) SAE J1351 Hot Odor for Insulation Materials SAE J1545 Instrumental Color Difference Measurement DOC-058151 Angle of Repose 1 Laboratory Developed Method For the tests to which this accreditation applies, please refer to the laboratory’s Mechanical Scope of Accreditation. Trace McInturff, Vice President, Accreditation Services For the Accreditation Council Certificate Number 0562.01 Valid to October 31, 2025 0562-01 0562-01c

COLORANT DISPERSIONS RUBBER COLORANT DISPERSIONS Stan-Tone™ MB/MC & EP Stan-Tone™ MB/MC & EP are pigment dispersions for rubber systems, available in customizable binder systems suited for nitrile, EPR, EPDM, SBR, natural rubber, CPE and EVA compounds Applications: industrial goods, auto mats, rubber flooring, sponge rubber, wire and cable URETHANE COLORANT DISPERSIONS Polyester Urethane Paste Colorants: Stan-Tone™ PEP Stan-Tone™ PEP colorants are reactive and compatible with polyester systems, reacting to become part of the final cured product Applications: cast urethane wheels, industrial rollers, rigid foams, adhesives, laminates, pultrusion, glass reinforced composites, coated fabrics Polyether Urethane Paste Colorants: Stan-Tone™ ET Stan-Tone™ ET colorants for urethane are compatible with polyether systems, reacting to become part of the final cured product Applications: flexible foam, cast-able rolls and wheels, adhesives and laminates EPOXY COLORANT DISPERSIONS Stan-Tone™ EPX Stan-Tone™ EPX consists of selected pigments dispersed in a Bisphenol A undiluted epoxy resin with an epoxide equivalent of 185 Applications: protective coatings, adhesives, epoxy flooring, electrical potting and laminates VINYL COLORANT DISPERSIONS Stan-Tone™ VC & VCP Stan-Tone™ VC and VCP are products based on single pigment or multi-pigment blends and are designed for applications in which dispersion, uniformity, compatibility and cleanliness are essential Applications: profile extrusions, decking, outdoor furniture, calendaring applications Plasticizer-Based Colorants for Vinyl Paste: Stan-Tone™ HCC Stan-Tone™ HCC dispersions consist of selected pigments dispersed in diisodecyl phthalate plasticizer (DIDP) and are designed for applications in which dispersion, uniformity, compatibility and cleanliness are essential Applications: coated fabric, vinyl sealants, adhesives, wall coverings, toys and sporting goods SILICONE COLORANT DISPERSIONS Liquid Silicone Colorants: Silcopas™ Stan-Tone™ SP or FSP (FDA-compliant) Silcotec™ SL Stan-Tone™ HC Plus LSR (class VI certified) Silicone paste colorants are single pigment or custom- made dispersions using a silicone carrier specially developed for liquid silicone rubber (LSR) injection molding applications Applications: infant care, toys, seals, gaskets and medical equipment High Consistency Silicone Rubber Colorants: Silcogum™ Silcotec™ S Stan-Tone™ SMB Stan-Tone™ HC Plus HCR (class VI certified) Silicone rubber colorants are made with a silicone elastomer gum binder resulting in cuttable masterbatches or slabs for ease of handling, especially for 2-roll, open-mill mixing Applications: mechanical seals, keypads, gaskets, wire and cable jacketing Room Temperature Vulcanization Colorants: Silcopas™ RTV and Stan-Tone™ SP Silcopas™ RTV and Stan-Tone™ SP colorants offer a standard line of single pigment or custom made dispersions using a low viscosity dimethyl fluid specially developed for room temperature vulcanization (RTV) rubber Applications: caulks, sealants, adhesives WATER-BASED COLORANT DISPERSIONS Water-Based Liquid Colorants: Stan-Tone™ WDN Stan-Tone™ WDN water dispersions are high-solids organic or inorganic pigment dispersions designed to help meet standards for dispersion including pH levels and strength and shade Applications: dipped latex balloons and gloves, coatings and adhesive systems ADDITIVE AQUEOUS ADDITIVE DISPERSIONS Aquamix™ Aquamix™ chemical dispersions are a full line of dispersed and emulsified curatives, antioxidants, fillers, vulcanizers, optical brighteners, flame retardants, UV stabilizers and tackifiers Applications: adhesives and latex compounding, curatives SILICONE ADDITIVE DISPERSIONS Electrically Conductive Additives for Silicone: Silcosperse™ EC Silcosperse™ EC electrically conductive additives provide high conductivity and lower filler loadings Applications: resistors, printable electronics, flexible electronics, insulator depolarizers Laser Marking Additives for Silicone: Silcosperse™ LM Silcosperse™ LM laser marking additives are dispersions that contain laser absorbers and color formers that eliminate the need for secondary etching Applications: medical device housings, electronic device housings, wire and cable jacketing Peroxide Additives for Silicone: Silcocat™ Silcocat™ dispersions can improve silicone molding process by stabilizing silicone peroxide compound levels Applications: automotive hoses, seals, gaskets Heat Stabilizer Additives for Silicone: Silcosperse™ The Silcosperse™ family of heat stabilizing additives provide a high quality dispersion into silicone designed to enhance heat resistance of silicone compounds Mold Release Additives for Silicone: Silcosperse™ IMR Silcosperse™ IMR is an internal mold release dispersion designed to be added to the silicone or fluorosilicone compound to facilitate the de-molding of finished parts Acid Acceptor Additives for Silicone: Silcosperse™ 180 Silcosperse™ 180 acid acceptor is a premium dispersion used to neutralize acid by-products generated by certain peroxides Viscosity Modifiers for Silicone: Silcosperse™ 237 Silcosperse™ 237 modifier dispersions are designed to raise or control the viscosity without changing solid content SPECIALTY PRODUCTS DRY POWDER COLORANTS Stan-Tone™ D and Stan-Tone™ DC Stan-Tone™ D and Stan-Tone™ DC are dry powder pigments available in a range of hues and chemical types WET OR DRY BLEND COLORANTS Stan-Tone™ DB Stan-Tone™ DB dry blend colorants provide enhanced performance over dry colors, resulting in uniform critical pigment weight ratios for improved color control SELF-BONDING SILICONE Silcotec™ SCB Silcotec™ SCB self-bonding silicone solutions allow silicone to bond to various substrates without prime coating To learn more about our colorant & additive dispersions, please contact us at +1.844.4AVIENT (1.844.428.4368) or visit www.avient.com.

They are based on management’s expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements.  Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to:  The final amount of charges resulting from the planned North American asset realignment and the Company’s ability to realize anticipated savings and operational benefits from the asset realignment;  Our ability to achieve the strategic and other objectives relating to the acquisition of Spartech Corporation, including any expected synergies;  Our ability to successfully integrate Spartech and achieve the expected results of the acquisition, including, without limitation, the acquisition being accretive;  Disruptions, uncertainty or volatility in the credit markets that could adversely impact the availability of credit already arranged and the availability and cost of credit in the future;  The financial condition of our customers, including the ability of customers (especially those that may be highly leveraged and those with inadequate liquidity) to maintain their credit availability;  The speed and extent of an economic recovery, including the recovery of the housing market;  Our ability to achieve new business gains;  The effect on foreign operations of currency fluctuations, tariffs, and other political, economic and regulatory risks;  Changes in polymer consumption growth rates in the markets where we conduct business;  Changes in global industry capacity or in the rate at which anticipated changes in industry capacity come online;  Fluctuations in raw material prices, quality and supply and in energy prices and supply;  Production outages or material costs associated with scheduled or unscheduled maintenance programs;  Unanticipated developments that could occur with respect to contingencies such as litigation and environmental matters;  An inability to achieve or delays in achieving or achievement of less than the anticipated financial benefit from initiatives related to working capital reductions, cost reductions, employee productivity goals, and an inability to raise or sustain prices for products or services;  An inability to raise or sustain prices for products or services;  An inability to maintain appropriate relations with unions and employees;  The inability to achieve expected results from our acquisition activities;  Our ability to continue to pay cash dividends;  The amount and timing of repurchases of our common shares, if any; and  Other factors affecting our business beyond our control, including, without limitation, changes in the general economy, changes in interest rates and changes in the rate of inflation.  The above list of factors is not exhaustive.  We undertake no obligation to publicly update forward-looking statements, whether as a result of new information, future events or otherwise. Appendix Q1 2015 Financial Highlights At a Glance�Global Color, Additives and Inks At a Glance�Global Specialty Engineered Materials At a Glance�Designed Structures and Solutions At a Glance�Performance Products and Solutions At a Glance�Distribution Plastics: Key to Future Sustainable Development Commitment to Operational Excellence Application Examples Slide Number 28 Authentication Technology 2015 Range Rover Evoque Interior Slide Number 31 Metal Replacement Solutions Next Generation Solar Charger High-Barrier Packaging Containers Aerospace Applications Credit Suisse - June 25 2015 r2 Credit Suisse - June 25 2015

: 14/12/1990 Company Type : PRIVATE COMPANY LIMITED BY SHARES Status : Live Company Status Date : 14/12/1990 Principal Activities Activities (I) WHOLESALE TRADE OF A VARIETY OF GOODS WITHOUT A DOMINANT PRODUCT (46900) : IMPORT/EXPORT AND SALES OF POLYMERS Description : Activities (II) : Description Capital CurrencyIssued Share Capital Share TypeNumber of Shares * (AMOUNT) 694600 SINGAPORE, DOLLARS ORDINARY694600 7200000 UNITED STATES OF AMERICA, DOLLARS ORDINARY7200000 * Number of Shares includes number of Treasury Shares CurrencyPaid-Up Capital Share TypeNumber of Shares (AMOUNT) 694600 SINGAPORE, DOLLARS ORDINARY 7200000 UNITED STATES OF AMERICA, DOLLARS ORDINARY Page 1 of 4 Number Of Shares Currency COMPANY HAS THE FOLLOWING ORDINARY SHARES HELD AS TREASURY SHARES Registered Office Address 3 INTERNATIONAL BUSINESS PARK #04-14/15 NORDIC EUROPEAN CENTRE SINGAPORE (609927) Date of Address 16/08/2020: Date of Last AGM : 29/08/2020 Date of Last AR : 26/10/2020 FYE As At Date of Last AR : 31/12/2019 Audit Firms NAME ERNST & YOUNG LLP Amount Secured Chargee(s) Charges CurrencyCharge No. Date Registered ID Officers/Authorised Representative(s) Position Held Nationality/CitizenshipName Date of Appointment XU TAO EB6238077 CHINESE 30/06/2021ACRA DirectorROOM 102, BUILDING 20, SUB LANE 7, LANE 888, LUOJIN ROAD SHANGHAI, 201104, CHINA CHAN BAI RONG S8534833G SINGAPORE CITIZEN 30/06/2021ACRA Director10A BENDEMEER ROAD #26-103 BENDEMEER LIGHT SINGAPORE (331010) LEE SAY ENG A52290094 MALAYSIAN 30/06/2021ACRA Page 2 of 4 ID Officers/Authorised Representative(s) Position Held Nationality/CitizenshipName Date of Appointment Director168 JINAN ROAD, BUILDING 10, ROOM 802, SHANGHAI CHINA 200021 CHAN LAI YIN S7480587F MALAYSIAN 28/06/2010ACRA Secretary26 SIMEI STREET 1 #11-08 MELVILLE PARK SINGAPORE (529947) LEE WEI HSIUNG S7927166G SINGAPORE CITIZEN 01/12/2009ACRA Secretary633 JURONG WEST STREET 65 #10-310 SINGAPORE (640633) Shareholder(s) Name ID Nationality/Citizenship Place of incorporation/ Origin/Registration Address Changed AVIENT CORPORATION T05UF0103G UNITED STATES OF AMERICA ACRA1 33587 WALKER ROAD, AVON LAKE, OHIO 44012, UNITED STATES OF AMERICA Ordinary(Number) Currency 694600 SINGAPORE, DOLLARS Ordinary(Number) Currency 7200000 UNITED STATES OF AMERICA, DOLLARS Page 3 of 4 Abbreviation UL - Local Entity not registered with ACRA UF - Foreign Entity not registered with ACRA AR - Annual Return AGM - Annual General Meeting FS - Financial Statements OSCARS - One Stop Change of Address Reporting Service by Immigration & Checkpoint Authority.

ELECTRICAL APPLIANCE BRAND H O U S E H O L D P R O D U C T S I N R E C Y C L E D A B S A N D P S • Support to qualify a new raw material sourcing process • Color prediction feasibility for new material grades • Color design guidance to maintain brand identity and differentiation • Color solutions that work with mixed grades of rABS and recycled polystyrene • Worked with the brand owner to test multiple styrenic grades and understand the best fit across colors and recycled resins • Supported integration of multiple resin solutions for the best rendering and aesthetics in rABS and rPS • Helped approve 7 colors to be launched within the forthcoming 18 months PCR Color Prediction Service KEY REQUIREMENTS WHY AVIENT? https://www.avient.com/resource-center/services/avient-color-prediction-tool

The ColorMatrix Select service features: Global Availability: Secure cloud-based software houses all customer-approved formulations. A number of service models are available to suit specific needs.

GLOBAL ELASTIC & RUBBER PRODUCT MANUFACTURER T O U R N I Q U E T B A N D • Hardness 45, shore A • Thickness 0.5mm and Tensile set

They are based on management’s expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements. Richardson Executive Vice President and Chief Financial Officer PolyOne Corporation 4 PolyOne Corporation 5  Landmark portfolio transformation: > 85% of Adjusted EBITDA from specialty solutions  World-class innovation, technology and service are differentiators  Sustainability initiatives and alignment with megatrends drive above market growth in key end markets and applications:  Capital management is a strength - proven track record of expanding ROIC while increasing invested capital Transaction expected to add $0.85 to pro forma adjusted EPS T H E N E W P O L Y O N E : A S P E C I A L T Y G R O W T H C O M P A N Y Integrity V I S I O N PolyOne Corporation 6 To be the world’s premier provider of specialized polymer materials, services and solutions C O R E V A L U E S P E R S O N A L V A L U E S Honesty Respect Operational Commercial Specialization Globalization Collaboration ExcellenceInnovation To be the world’s premier provider of sustainable, specialty polymer materials and solutions. Sources Cash from Balance Sheet $465 New Senior Unsecured Notes 650 New Equity 450 Total Sources $1,565 Uses Clariant Masterbatch $1,500 Clariant India Masterbatch 60 Less: Lease Adjustment (113) Net Purchase Price $1,447 Net Cash Acquired 57 Fees, Expenses & OID 61 Total Uses $1,565 ($ Millions) Cash and Cash Equivalents $370 $450M Senior Secured ABL Revolver - Senior Secured Term Loan B due 2026 624 Other Debt 25 Total Senior Secured Debt $649 5.25% Senior Unsecured Notes due 2023 $600 New Senior Unsecured Notes 650 Total Senior Debt $1,899 Net Debt $1,529 New Equity $450 Pro Forma Capitalization (1) PF 12/31/2019 $450 $600 $624 $743 2019 2020 2021 2022 2023 2024 2025 2026 A T T R A C T I V E F I N A N C I N G S T R U C T U R E Attractive Debt Maturity Profile Existing Revolver Existing Senior Notes Existing Term Loan B New Debt Summary Terms on New Debt  $465 million of cash from the balance sheet expected to fund a portion of the purchase price  Bridge financing for remainder fully committed from Citi, Morgan Stanley and Wells Fargo  Permanent financing expected to include a combination of long-term debt and new equity  The timing of the permanent financing is subject to a number of factors, including, but not limited to, market conditions  PolyOne is committed to preserving a strong balance sheet – Target net leverage at close below 3.5x, excluding synergies  Pro forma capital structure positions PolyOne with flexibility to pursue continued growth strategy  New financing expected to have same or better covenant package than existing capital structure  Capital structure would be “covenant lite” Capital Policy  Transaction in line with PolyOne’s disciplined capital allocation policy  Existing PolyOne dividend policy to be maintained  Focus on deleveraging in the near term 2028+ PolyOne Corporation 26 PolyOne Corporation 27 T H E N E W P O L Y O N E : A S P E C I A L T Y G R O W T H C O M P A N Y  Landmark portfolio transformation: > 85% of Adjusted EBITDA from specialty solutions  World-class innovation, technology and service are differentiators  Sustainability initiatives and alignment with megatrends drive above market growth in key end markets and applications:  Capital management is a strength - proven track record of expanding ROIC while increasing invested capital Transaction expected to add $0.85 to pro forma adjusted EPS PolyOne Corporation 28 PolyOne Corporation 29

They are based on management’s expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements. Garratt Performance Products & Solutions Sporting Goods Textiles 6) Color and Design Services Fernando Sanchez Director Global Marketing Packaging Automotive 3) 3D Printing Cathy K. Dodd Vice President Marketing Prototyping Services Design Support Fused Deposition Modeling Aerospace 4) Enhanced Ergonomic Technologies Craig M.