portfolio improvements by divesting Performance Products and Solutions (PP&S) major steps forward in our specialty transformation with the divestiture of PP&S

fourth quarter most heavily impacted the Performance Products and Solutions (PP&S) Specifically, end markets negatively impacting PP&S were building & construction

- W PEERS x ESI AVIENT CORPORATION F O U R T H Q U A R T E R 2 0 2 1 R E S U L T S A N D 2 0 2 2 F I N A N C I A L G U I D A N C E (NYSE: AVNT) F E B R TOTA L C O M PA N Y R E G I O N A L S A L E S BY END MARKET Packaging 30% Consumer

AR : 31/12/2019 Audit Firms NAME ERNST & YOUNG LLP Amount Secured Chargee(s) 199006136Z) (ACRA) Source of Address ID Officers/Authorised Representative(s) Secretary633 JURONG WEST STREET 65 #10-310 SINGAPORE (640633) Shareholder(s)

Expiration: 01-February-2025 Date Of Certification: 02-February-2022 PRODUCT(S) speciality compounds obtained by mixing and extrusion PERMITTED EXCLUSION(S) FMSNR3ILR1QPBBMGXNKFUDB2LWB28AYDXJNZADBZ8WDH3QYML73QK0B7L7V6CZQPGPGDYLG2UVXWEPJVT4Q0E4Z0DOKSEXCP0BNO7K2WUHCQB2Q9ORVVTV4F9DTN2UI35L REMOTE SUPPORT FUNCTION(S)

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Avient IR Presentation - June 2021 AVIENT CORPORATION J U N E 2 0 2 1 I N V E S T O R M E E T I N G S (NYSE: AVNT) DISCLAIMER 2 Forward-Looking Statements In U P P L I ER S 36 TOTA L C O M PA N Y R E G I O N A L S A L E S BY END MARKET

Avient IR Presentation - May 2021 AVIENT CORPORATION M AY 2 0 2 1 I N V E S T O R M E E T I N G S (NYSE: AVNT) DISCLAIMER 2 Forward-Looking Statements In U P P L I ER S 36 TOTA L C O M PA N Y R E G I O N A L S A L E S BY END MARKET

History The mass production of glass fibers first began in the 1930’s. E-Glass typically is utilized for its high modulus properties as S-Glass has Types E-Glass, S-Glass.

12/2019 Audit Firms NAME PRICEWATERHOUSECOOPERS LLP Amount Secured Chargee(s) 201916958N) (ACRA) Source of Address ID Officers/Authorised Representative(s) Secretary46 EASTWOOD ROAD #04-06 LAGUNA 88 SINGAPORE (486356) Shareholder(s)