� IQNET CHINA QUALITY CERTIFICATION CENTRE Section 9, No.188, Nansihuan(the South Fourth Ring Road) Xilu(West Road), Beijing 100070, China http://www.cqc.com.cn A 0082281 2022.$!

� IQNET CHINA QUALITY CERTIFICATION CENTRE Section 9, No.188, Nansihuan(the South Fourth Ring Road) Xilu(West Road), Beijing 100070, China http://www.cqc.com.cn A 0082431 20221:f=�&

Certificate Magna Colours Limited Certificate Of Conformance This is to certify that the Quality Management System of: Magna Colours Limited Unit 3 Dodworth Business Park, Dodworth Barnsley South Yorkshire S75 3SP United Kingdom has been assessed by ABS Quality Evaluations, Inc. and found to be in conformance with the requirements set forth by: ISO 9001:2015 The Quality Management System is applicable to: The Provision of a Service Of Sourcing, Procuring, Design, Manufacturing and Distribution of Specialty Colouration Products and Chemical Auxiliaries for use the Textile, Dying, Printing and Finishing Industries.

In addition, when identifying nominees for election to the Board, the Governance and Corporate Responsibility Committee will include, and will request that any search firm it engages include, qualified female and racially/ethnically diverse persons in the initial pool from which director nominees are chosen. As such, if and when the Board is conducting a search for a new Chief Executive Officer that will include candidates that are not then Company employees, directors or affiliates, the Board will include, and will request that any search firm it engages include, qualified female and racially/ethnically diverse persons in the initial pool from which Chief Executive Officer candidates are chosen.

Ezcabarte calle H Nº3 Oricain, Navarra 31194 Facility: Avient Corporation - Phan Thong 700/848 Moo 1,Tambol Phan Thong Amata City Chonburi Industrial Estate Phan Thong, Chonburi 20160 Thailand Activity: Manufacture of Masterbatches, Additives, ECCOH, and Compounds for Pigmenting Thermoplastic Activity: Design and Manufacture of Colorants and Additives for Plastics Facility: Avient Corporation - Pogliano, Italy Via Lainate 26 20005, Pogliano Milanese, Milano Facility: Avient Corporation - Randburg, South Africa 329 Tungsten Rd, Strydompark Randburg, Gauteng 2194 South Africa Activity: Manufacture of Colour and Additive Concentrates, Thermoplastic Resins and Specialty Compounds Activity: Manufacture of Masterbatches Facility: NEU Specialty Engineered Materials, LLC 15 Corporate Drive North Haven, CT 06473 Facility: Avient Corporation - Norwalk, OH 80 North West Street Norwalk, OH 44857 Activity: Compound, Supply, and Prototyping Services of Thermoplastics Activity: Design and Manufacture of Colorants and Additives for Plastics Page 8 of 10 Facility: Avient Corporation - Sant Andreu, Spain Crta.

Ezcabarte calle H Nº3 Oricain, Navarra 31194 Facility: Avient Corporation - Phan Thong 700/848 Moo 1,Tambol Phan Thong Amata City Chonburi Industrial Estate Phan Thong, Chonburi 20160 Thailand Activity: Manufacture of Masterbatches, Additives, ECCOH, and Compounds for Pigmenting Thermoplastic Activity: Design and Manufacture of Colorants and Additives for Plastics Facility: Avient Corporation - Pogliano, Italy Via Lainate 26 20005, Pogliano Milanese, Milano Facility: Avient Corporation - Randburg, South Africa 329 Tungsten Rd, Strydompark Randburg, Gauteng 2194 South Africa Activity: Design and Manufacture of Colour and Additive Concentrates, Activity: Manufacture of Masterbatches Facility: NEU Specialty Engineered Materials, LLC 15 Corporate Drive North Haven, CT 06473 Facility: Avient Corporation - Norwalk, OH 80 North West Street Norwalk, OH 44857 Activity: Compound, Supply, and Prototyping Services of Thermoplastics Activity: Design and Manufacture of Colorants and Additives for Plastics Page 8 of 10 Facility: Avient Corporation - Sant Andreu, Spain Crta.

Ezcabarte calle H Nº3 Oricain, Navarra 31194 Facility: Avient Corporation - Phan Thong 700/848 Moo 1,Tambol Phan Thong Amata City Chonburi Industrial Estate Phan Thong, Chonburi 20160 Thailand Activity: Manufacture of Masterbatches, Additives, ECCOH, and Compounds for Pigmenting Thermoplastic Facility: Avient Corporation - Pogliano, Italy Via Lainate 26 20005, Pogliano Milanese, Milano Facility: Avient Corporation - Randburg, South Africa 329 Tungsten Rd, Strydompark Randburg, Gauteng 2194 South Africa Activity: Manufacture of Colour and Additive Concentrates, Thermoplastic Resins and Specialty Compounds Activity: Manufacture of Masterbatches Facility: NEU Specialty Engineered Materials, LLC 15 Corporate Drive North Haven, CT 06473 Facility: Avient Corporation - Norwalk, OH 80 North West Street Norwalk, OH 44857 Activity: Compound, Supply, and Prototyping Services of Thermoplastics Activity: Design and Manufacture of Colorants and Additives for Plastics Page 8 of 10 Facility: Avient Corporation - Sant Andreu, Spain Crta.

STAN-TONE EPX-15103 POOL AQUA

PX-8595-A BLUE POOL FILTER PLASTISOL

181140-01 EXPB90UB7 POOL BLUE