Microsoft Word - Avient_RY 2022 CDP Verification Opinion Declaration_07-24-23 WATER RESOURCES • ENVIRONMENTAL SERVICES • HEALTH & SAFETY • CLIMATE CHANGE Apex Companies, LLC • (800) 733-2739 • www.apexcos.com VERIFICATION OPINION DECLARATION GREENHOUSE GAS EMISSIONS To: The Stakeholders of Avient Corporation Apex Companies, LLC (Apex) was engaged to conduct an independent verification of the greenhouse gas (GHG) emissions reported by Avient Corporation (Avient) for the period stated below. We conducted this verification independently and to our knowledge there has been no conflict of interest. The verification team has extensive experience in conducting assurance over environmental, social, ethical and health and safety information, systems and processes, has over 20 years combined experience in this field and an excellent understanding of Apex’s standard methodology for the verification of greenhouse gas emissions data.

AU TO M O T I V E M I R R O R & C A M E R A M A N U FA C T U R E R C A B L E G R O M M E T • Electrically conductive All Rights Reserved https://www.avient.com/products/thermoplastic-elastomers/stat-tech-tpe-static-dissipative-electrically-conductive-thermoplastic-elastomers Automotive mirror & camera manufacturer

Cesa™ Stat Antistatic Additives PRODUCT SELECTION GUIDE Polymers are typically non-conductive, allowing the buildup of a static charge on the surface that can attract dust or damage electronics stored within packaging. Cesa™ Stat temporary antistatic additives create a conductive network on polymer surfaces permitting dissipation of the electrical charges. Permanent antistatic additives, which function regardless of the relative humidity by creating an internal conductive network, are also available as custom masterbatches.

VERIFICATION OPINION DECLARATION GREENHOUSE GAS EMISSIONS To: The Stakeholders of Avient Corporation Apex Companies, LLC (Apex) was engaged to conduct an independent verification of the greenhouse gas (GHG) emissions reported by Avient Corporation (Avient) for the period stated below. We conducted this verification independently and to our knowledge there has been no conflict of interest. The verification team has extensive experience in conducting assurance over environmental, social, ethical and health and safety information, systems and processes, has over 20 years combined experience in this field and an excellent understanding of Apex’s standard methodology for the verification of greenhouse gas emissions data.

This Antitrust Policy supplements the Competition section of Avient’s Code of Conduct. Because it can be difficult to distinguish unlawful conduct of this type from lawful conduct, you should consult the Avient Legal Department before putting any of these types of restraints in place. 4. Examine your motives for engaging in any particular course of conduct.

 Audits must be conducted during normal business hours Ethics - Code of Conduct Avient has its own ethics policy – The Avient Code of Conduct which establishes a clear set of ethical and behavioral standards for business conduct by all Avient associates. The Avient code of conduct is available here.

Stat-Tech™ STATIC DISSIPATIVE & ELECTRICALLY CONDUCTIVE FORMULATIONS PROCESSING GUIDE Stat-Tech™ Stat-Tech™ Static Dissipative and Electrically Conductive Formulations are specifically engineered to provide antistatic, ESD and EMI/RFI shielding performance for critical electronic equipment applications. Conductive properties are achieved with a silver or fibrous surface appearance. You have the responsibility to conduct full-scale end-product performance testing to determine suitability in your application, and you assume all risk and liability arising from your use of the information and/or use or handling of any product.

These materials utilize long fiber technology and exhibit enhanced shielding effectiveness versus standard short fiber conductive polymers. TEMPERATURE Material Rear °F (°C) Center °F (°C) Front °F (°C) Nozzle °F (°C) Melt °F (°C) Mold °F (°C) Nylon 6,6 14% NiCF 540–570 (280–300) 530–560 (275–290) 530–560 (275–290) 540–570 (280–300) 540–570 (280–300) 200–300 (90–150) Nylon 6,6 30% SS 540–570 (280–300) 530–560 (275–290) 530–560 (275–290) 540–570 (280–300) 540–570 (280–300) 200–300 (90–150) PBT 14% NiCF 510–410 (265–280) 490–540 (255–280) 480–530 (250–275) 480–530 (250–275) 480–530 (250–275) 150–250 (65–120) PC 14% NiCF 540–570 (280–300) 540–570 (280–300) 530–560 (275–290) 530–560 (275–290) 530–560 (275–290) 150–250 (65–120) ABS 14% NiCF 470–520 (240–270) 460–520 (240–270) 460–520 (240–270) 460–530 (240–275) 460–530 (240–275) 100–200 (40–90) PP 14% NiCF 440–480 (225–250) 440–480 (225–250) 430–470 (220–245) 420–460 (215–240) 420–460 (215–240) 125–175 (50–80) DRYING Material Temperature °F (°C) Time Minimum Moisture Maximum Moisture Nylon 6,6 14% NiCF 180 (80) 4–5 hours 0.05% 0.20% Nylon 6,6 30% SS 180 (80) 4–5 hours 0.05% 0.20% PBT 14% NiCF 250 (120) 6-8 hours 0.02% 0.03% PC 14% NiCF 250 (120) 3–4 hours 0.02% 0.02% ABS 14% NiCF 200 (90) 2–4 hours 0.05% 0.10% PP 14% NiCF 180 (80) 2–4 hours 0.20% 0.30% Equipment • Feed throats smaller than 2.5" may cause bridging due to pellet size - Larger feed throats will be more advantageous with long fiber EMI shielding resins • General purpose metering screw is recommended - Mixing/barrier screws are not recommended • L/D ratio - 18:1–20:1 (40% feed, 40% transition, 20% metering) • Low compression ratio - 2:1–3:1 • Deep flights recommended - Metering zone 3.5 mm - Feed zone 7.5 mm • Check ring - Three-piece, free-flowing check ring • General purpose nozzle (large nozzle tips are recommended) - Minimum orifice diameter of 7/32" - Tapered nozzles are not recommended for long fiber EMI shielding resins • Clamp tonnage: - 2.5–5 tons/in2 Gates • Large, free-flow gating recommended - 0.25" x 0.125" land length - 0.5" gate depth Runners • Full round gate design • No sharp corners • Minimum of 0.25" diameter • Hot runners can be used PROCESSING Screw Speed Slower screw speeds are recommended to protect fiber length Back Pressure Lower back pressure is recommended to protect fiber length Pack Pressure 60–80% of max injection pressure Hold Pressure 40–60% of max injection pressure Cool Time 10–30 seconds (depends on part geometry and dimensional stability) PROCESS CONSIDERATIONS Recommended – retain fiber length (maximize conductivity) • Low shear process • Low screw speed and screw RPM • Slow Injection speed • Fill to 99–100% on first stage of injection - Reduces potential nesting of fibers at gate location - Improves mechanical performance near gate location - Promotes ideal fiber orientation Resin Rich Surface • Achieved when using a hot mold temperature and longer cure times ≥ Max mold temperature recommendation • Improved surface aesthetic • Reduced surface conductivity • Could reduce attenuation performance in an assembly Fiber Rich Surface • Achieved when using a cold mold temperature and shorter cure times ≤ Minimum mold temperature recommendation • Improved surface aesthetic • Reduced surface conductivity • Could improve attenuation performance in an assembly www.avient.com Copyright © 2020, Avient Corporation. You have the responsibility to conduct full-scale end-product performance testing to determine suitability in your application, and you assume all risk and liability arising from your use of the information and/or use or handling of any product.

 Audits must be conducted during normal business hours Ethics - Code of Conduct Avient has its own ethics policy – The Avient Code of Conduct which establishes a clear set of ethical and behavioral standards for business conduct by all Avient associates. The Avient code of conduct is available here.

M E D I C A L E Q U I P M E N T M A N U FA C T U R E R S U R G I C A L X - R A Y G L A S S E S • Replace lead while providing uniform shielding performance • Radiation shielding up to 140KeV • Improve glasses design • Compliance with Radiation Protection Regulation: Adult eye exposure must be below 20 mSv per calendar year • Conducted extensive testing to ensure comparable and uniform shielding performance • Improved geometric flexibility • Lowered shielding component costs 30-50% by eliminating machining and assembly steps (associated with lead) • Reduced weight of the glasses and enabled a more ergonomic design • Eliminated disposal concerns associated with lead Trilliant™ XR Lead Replacement Thermoplastics KEY REQUIREMENTS WHY AVIENT? https://www.avient.com/products/engineered-polymer-formulations/conductive-signal-radiation-shielding-formulations/trilliant Medical equipment manufacturer