Transforming Modular & Offsite Construction with Advanced Composites APPLICATION GUIDE Siding & Cladding Impact resistance; thermal expansion reduction; superior strength-to-thickness ratio compared to traditional siding Roofing Systems Impact resistance; flexural strength; thermally insulative; will not contribute to mold or rot Interior Wall, Floor, & Ceiling Panel Systems Improved structural integrity; integrated fire protection; customized dimensions & finishes; thermal insulation; water, pest, & impact resistance Doors Impact resistance; ballistic resistance; high strength-to-weight ratio Exterior Sheathing Continuous insulation; impact, moisture & rot resistance; lightweight construction Garage Doors Impact & corrosion resistance; high flexural strength; customized dimensions & finishes; weatherability; UV stability; weight reduction Flood Barriers Moisture & corrosion resistance; durable; will not contribute to mold growth Composite Decking & Lumber Reinforcements for increased strength; material & weight reduction Cabinetry & Storage Weight reduction; customized dimensions & finishes Hammerhead™ FR Flame Retardant Composite Panels & Laminates Hammerhead™ & Polystrand™ Composite Panels GlasArmor™ & ThermoBallistic™ Ballistic Panels Polystrand™ Continuous Fiber Tapes ADVANCED COMPOSITES FOR BUILDING & CONSTRUCTION Polystrand™ Continuous Fiber Laminates Storm Shutters Impact & ballistic resistance; superior strength-to-weight ratio Safe/Panic Rooms Ballistic & impact resistance 1.844.4AVIENT www.avient.com Copyright © 2025, Avient Corporation.

As we embark on 2025, I do so with optimism and energy for our company and the stakeholders we serve. Eastern Time on Wednesday, May 14, 2025.

Certificate Number: Certificate expiration date: Effective date: 31-10-2022 30-10-2025 Expiry date of previous cycle: 30-10-2022 31-10-2016 ES133794 Scope of certification: MANUFACTURING OF MASTERBATCHES, ADDITIVES AND COMPOUNDS FOR PIGMENTING THERMOPLASTIC MATERIALS USED IN FOOD INDUSTRY ISO 22000:2018 POLIGONO INDUSTRIAL EZCABARTE, C/H, Nº3 - 31194 - ORICAIN - NAVARRA - ESPAÑA AVIENT ESPAÑA, S.L.

Avient’s Board of Directors provides the highest level of governance, as detailed to the right and in the 2025 Proxy Statement. In 2025, the committee will be renamed the Innovation & Sustainability Committee and is expanding its scope to include innovation and sustainability.

Avient’s Board of Directors provides the highest level of governance, as detailed to the right and in the 2025 Proxy Statement. In 2025, the committee will be renamed the Innovation & Sustainability Committee and is expanding its scope to include innovation and sustainability.

SmartHeat™ RHC AAzure™ Optica™ Ultimate™ UV390R APPLICATION PET process aid Acetaldehyde scavenger Heat stable, enhanced recyclability toners and colors Light barrier for PET FORMULATION Liquid dispersion Stand alone Liquid dispersion Triple A™ with SmartHeat RHC Liquid dispersion Heat stable dyes and carrier system with SmartHeat RHC Liquid dispersion USER Converters and rPET producers Converters (water) Converters and rPET producers Converters COLOR Colorless Slight blue tint or can be colored as required with the addition of Optica toners A range of blue colors and toners, also custom color solutions Green and amber colors also available Colorless RECYCLING APPLICATIONS APR accredited N/A N/A APR accredited COLORMATRIX ENHANCED RECYCLABILITY PORTFOLIO KEY BENEFITS • Corrects yellowing and balances color variation in PET preforms, bottles and rPET • Improves heat stability through the recycling process • Improves the quality and performance of rPET • Achieves improved mechanical strength in the bottle • Improves productivity, reduced blowouts, downtime and scrap rates in bottle blowing and filling • Reduces energy consumption • Supports the circular economy TARGET MARKET & APPLICATIONS PET preforms and rPET resin REGULATORY • EU - ✓ • FDA - ✓ • Mercosur - approved for use in Brazil with applicable use limitations Detailed information regarding food contact clearances available on request. 1.844.4AVIENT www.avient.com Copyright © 2025, Avient Corporation.

Body Weight Active LDR (ppm) —— Body Weight —— Max Load Bo dy W ei gh t ( g) M ax L oa d (lb s) Active LDR (ppm) —— Energy Consumption —— Energy Reduction En er gy C on su m pt io n (k W ) En er gy R ed uc tio n 0 10 25 0 17 34 51 30% 1.844.4AVIENT www.avient.com Copyright © 2025, Avient Corporation.

Copyright © 2025, Avient Corporation.

• Complēt™ long glass, long carbon, and hybrid fiber solutions available in a wide array of engineering polymer matrices, including PA66, PA6, ETPU, PPA, PPS, PES, PEI, PK, and PEEK • OnForce™ long glass fiber reinforced polypropylenes • Full suite of design and engineering services that include structural design and fiber orientation consultations and modeling, CAE analysis, prototyping, and more STRENGTH-TO-WEIGHT RATIO OF LFT VS METALS m eg ap as ca l gram /cubic centim eter 250 200 150 100 50 0 9.00 8.00 7.00 6.00 5.00 4.00 3.00 2.00 1.00 0.00 Zam ak 3 Stainless Steel 304 Titanium #2 Com plēt LCF40-PP Com plēt LGF60-TPU OnForce LGF50-PP Alum inum A380 M agnesium AZ91D Com plēt LCF50-PA66 Com plēt LGF60-PA66 Com plēt LCF50-TPU Specific Strength Density Metal Long Glass Fiber Long Carbon Fiber 1.844.4AVIENT www.avient.com Copyright © 2025, Avient Corporation.

No. 0514.02) Revised 10/08/2019 Page 1 of 2 SCOPE OF ACCREDITATION TO ISO/IEC 17025:2005 POLYMER DIAGNOSTICS INC. 33587 Walker Road Avon Lake, OH 44012 Ana De La Ree Phone: 440-930-3271 CHEMICAL Valid To: December 31, 2019 Certificate Number: 0514.02 In recognition of the successful completion of the A2LA evaluation process, accreditation is granted to this laboratory to perform the following rubber and plastics tests: Test Description: Test Method or Standard: Analysis of Volatile Contaminants from Polymers (Chromatography) VDA 277 FTIR (Fourier Transform Infrared) Spectroscopy ASTM E1252 (Except 7.6, 11.2, and 11.4) Flammability Horizontal Burn of Self-Supporting Plastics ASTM D635; UL 94; IEC 60695-11-10 Horizontal Burn of Materials Used in Occupant Compartments of Motor Vehicles ASTM D5132; FMVSS 302 (49 CFR 571.302) Vertical Burn, 20 mm ASTM D3801; UL 94; IEC 60695-11-10 Vertical Burn, 125 mm ASTM D5048; UL 94; IEC 60695-11-20 Oxygen Index ASTM D2863 FT1 Flame Test UL1581, Clause 1060; UL2556/CSA C22.2 No 2556, Clause 9.3 Cable Flame Test UL1581, Clause 1061 VW1 Flame Test UL1581, Clause 1080; UL2556/CSA C22.2 No 2556, Clause 9.4 FT2/FH Flame Test UL1581, Clause 1100; UL2556/CSA C22.2 No 2556, Clause 9.1 FV-1 Flame Test UL1581, Clause 1060; UL2556/CSA C22.2 No 2556, Clause 9.5 Thin Material Burning Test UL-94 Glow Wire Test IEC 60695 2-10, 2-11, 2-12, 2-13 RVCM in PVC ASTM D4443 (A2LA Cert.