STAN-TONE HCC-35341 ALSIDE LEMON STAN-TONE TR PURPLE STAN-TONE BRIGHT COPPER

Avient To Hold Second Quarter 2025 Conference Call... Avient Announces Quarterly Dividend... Avient Board of Directors Appoints Ashish K.

STAN-TONE HCC-33169 YELLOW STAN-TONE CHARCOAL GRAY STAN-TONE HCC-30900 ROCKET RED

STAN-TONE VC-34893 RED 072R STAN-TONE HCC-8483 ORANGE STAN-TONE HCC-34965 YELLOW

STAN-TONE HCC-34318 TEC MIST 939 STAN-TONE HCC-34317 TEC MOCHA 932 STAN-TONE VCP-34323 POOL BLUE

Water Street North Baltimore, OH 45872 U.S.A. has been assessed by ABSQuality Evaluations,Inc. and found to be in conformance with the requirements set forth by: RC14001®:2015 DESIGN AND MANUFACTURE OF CUSTOM PVC COMPOUNDS Certificate No: 55421 Effective Date: 20 November 2017 Expiration Date: 19 November 2020 Issue Date: 20 November 2017 Alex Weisselberg, President Validity of this certificate is based on the successful completion of the periodic surveillance audits of the management system defined by the above scope and is contingent upon prompt,written notification to ABS Quality Evaluations, Inc. of significant changes to the management system or components thereof.

He also led the efforts to sell the company's non-core vinyl dispersion, blending and suspension resin assets in 2013.

STAN-TONE HCC- STM-GRAY STAN-TONE HCC- STM-BEIGE STAN-TONE HCC- MOSS GREEN

STAN-TONE HCC- BLACK 7 STAN-TONE HCC- VINE PEARL STAN-TONE DB- BLUE

STAN-TONE VCP-29484 RED STAN-TONE VCP-29483 BROWN STAN-TONE VCP-29479 BLACK