No. 0514.02) 12/11/2023 Page 1 of 1 SCOPE OF ACCREDITATION TO ISO/IEC 17025:2017 AVIENT CORPORATION – ANALYTICAL SOLUTIONS 33587 Walker Road Avon Lake, OH 44012 Stephanie Mims Phone: 440-930-3499 CHEMICAL Valid To: September 30, 2025 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: 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); ISO 3785 Vertical Burn, 20 mm ASTM D3801; UL 94; IEC 60695-11-10 Vertical Burn, 125 mm ASTM D5048; UL 94; IEC 60695-11-20 Thin Material Burning Test UL-94 Glow Wire Test IEC 60695 2-10, 2-11, 2-12, 2-13 Thermal Analysis DSC (Differential Scanning Calorimetry) ASTM D3418, E794, E1356 TGA (Thermogravimetric Analysis) ASTM E1131 TMA (Linear Thermal Expansion of Solid Materials by Thermomechanical Analysis) ASTM E831; ISO 11359-2 Karl Fischer Moisture Content ASTM D6869 For the tests to which this accreditation applies, please refer to the laboratory’s Chemical Scope of Accreditation.

No. 0514.01) 12/11/2023 Page 1 of 1 SCOPE OF ACCREDITATION TO ISO/IEC 17025:2017 AVIENT CORPORATION – ANALYTICAL SOLUTIONS 33587 Walker Road Avon Lake, OH 44012 Stephanie Mims Phone: 440 930 3499 MECHANICAL Valid To: September 30, 2025 Certificate Number: 0514.01 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 Brittleness Temperature (Impact) ASTM D746; ISO 812 Charpy Impact ISO 179-1 Color Determination by Spectrophotometer ASTM D2244, E1331; ISO 7724 Conditioning of Plastics for Testing ASTM D618; ISO 291 Deflection Temperature Under Flexural Load ASTM D648; ISO 75-1, -2 Durometer Hardness (Shore A and D) ASTM D2240; ISO 7619-1 Flexural Properties ASTM D790; ISO 178 Flow Rate (Extrusion Plastometer) ASTM D1238 (Procedures A and B); ISO 1133 Impact Resistance (Izod) ASTM D256; ISO 180 Instrumented Impact ASTM D3763; ISO 6603-2 Specific Gravity/Density ASTM D792 (Method A); ISO 1183-1 Specular Gloss ASTM D523; ISO 2813 Tackiness of Interior Materials BO 061-01 Tear Resistance ASTM D624, D1004; ISO 34 Tensile Properties ASTM D412 (Method A), D638, D882; ISO 37, 527-1, -2, -3, -4, -5 Xenon-Arc Exposure Testing ASTM D2565, G155; SAE J1885 (Withdrawn January 2008), J1960 (Withdrawn January 2008), J2412, J2527; BO-116-01 For the tests to which this accreditation applies, please refer to the laboratory’s Mechanical Scope of Accreditation.

For the tests to which this accreditation applies, please refer to the laboratory’s Mechanical Scope of Accreditation.

Second, lead times for the additive were long and deliveries slow, which gave rise to production bottlenecks.

intends to use the net proceeds from the offering to finance a portion of the consideration for its pending acquisition from Koninklijke DSM N.V. will be required to redeem the notes at the "special mandatory redemption price" equal to 100% of the aggregate principal amount thereof together with accrued and unpaid interest, if any, on the notes from the date of initial issuance or the last date on which interest has been paid up to, but not including, the special mandatory redemption date. 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. 

intends to use the net proceeds from the offering, along with borrowings under a new term loan and cash on hand, to finance its pending acquisition from Koninklijke DSM N.V. will be required to redeem the notes at the "special mandatory redemption price" equal to 100% of the aggregate principal amount thereof together with accrued and unpaid interest, if any, on the notes from the date of initial issuance or the last date on which interest has been paid up to, but not including, the special mandatory redemption date. 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. 

They are joining us on Day 1 of this new era for our company, which as of today will be named Avient," said This is up from less than 10% when our specialty journey began over a decade ago.   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.

He has demonstrated clear and consistent leadership, which I will build upon in PolyOne’s pursuit of continued growth as a specialty company.” Patterson earned his bachelor’s degree in business administration and master’s degree in accounting from the University of Michigan. 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.

Jarus has deep polymer technical knowledge, and holds a Bachelor of Science in Chemical Engineering, a Master of Science in Macromolecular Science, and a Ph.D. in Polymers, all from He also earned an MBA from 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.

This technology protects light-sensitive dairy products such as ultra-pasteurized milk and protein-enhanced yogurts from photo-induced degradation by providing 99.99% UV and visible-light blocking. For this reason, Lactra SX was recently awarded the China Sustainable Packaging Award 2017 from M. 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.