CERTIFICATE OF INCORPORATION ON CHANGE OF NAME Company Number 3141094 The Registrar of Companies for England and Wales hereby certifies that under the Companies Act 2006: POLYONE CORPORATION UK LIMITED a company incorporated as private limited by shares, havingits registered office situated in England and Wales, has changed its name to: AVIENT MATERIAL SOLUTIONS UK LIMITED Given at Companies House on9th November 2021.

Technology Relevant, always included Demand for and supply of our products and services may be adversely affected by several technological factors, some of which we have little ability to predict or control. Minimum potential financial impact figure calculation = $20 * 110,392 MT CO2e (2022 Scope 1 & 2 emissions from distribution centers, retail and offices in countries where carbon pricing has been implemented) = $2,207,832. Partnering with governments on technology development An active program exists to periodically assess availability of government incentives related to greener technology use and development.

In this press release, 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. Non-GAAP financial measures have limitations as analytical tools and should not be considered in isolation from, or solely as alternatives to, financial measures prepared in accordance with GAAP. To Investor Center

In this press release, 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. Non-GAAP financial measures have limitations as analytical tools and should not be considered in isolation from, or solely as alternatives to, financial measures prepared in accordance with GAAP. To Investor Center

In this press release, 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. Non-GAAP financial measures have limitations as analytical tools and should not be considered in isolation from, or solely as alternatives to, financial measures prepared in accordance with GAAP. To Investor Center

Black, blue and clear are popular options, but there is almost no limitation on color when it comes to using TPEs. With thermoset materials like a rubber tire, the options are much more limited. More technical and detailed information on thermoplastic elastomers can be found on our TPE Knowledge Center and TPE FAQ page.

Army Corps Engineers’ Engineer Research and Development Center (ERDC) Survivability Engineering Branch enlisted the expertise of Edwards Design and Fabrication, an Alabama-based equipment fabricator for commercial and government research and development organizations. With our hardware fabrication capabilities and Avient’s knowledge of composite ballistic protection technology, we were able to create modular systems that reduce time and logistic requirements for our brave soldiers.” 1 https://www.erdc.usace.army.mil/Missions/Military-Engineering/Deployable-Force-Protection-Demo/ To learn more about ballistic resistant solutions from Avient, visit avient.com or click to request a quote.

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. AVIENT MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, either with respect to the information or products reflected by the information.

Understanding the performance attributes and limitations of polyketone Can PK be colored and what are the limitations? Although polyketone thermoplastics have an abundance of performance benefits and advantages, a common limitation of this base resin can be aesthetics and colorability.

Understanding the performance attributes and limitations of polyketone Can PK be colored and what are the limitations? Although polyketone thermoplastics have an abundance of performance benefits and advantages, a common limitation of this base resin can be aesthetics and colorability.