STAN-TONE DB-29358 CRYSTAL SILVER STAN-TONE DB-29359 WHITE PEARL STAN-TONE DB-29361 FLASH RED

DB- RED STAN-TONE DB-103047 BROWN STAN-TONE DB-103058 YELLOW

STAN-TONE DB-12509 BROWN STAN-TONE DB-15603 RED STAN-TONE DB-15600 ALUMINUM

DB-135A PITNEYBOWEBLUE DB-135A WHITE DB-135A YELLOW

DB-155 METALLIC GRAY DB-164 CLEAR STAN-TONE DB-16074 LILAC PEARL

None of the agreements contain a single trigger or a modified single trigger for benefits. Avient and some brokers household proxy materials, delivering a single proxy statement to multiple shareholders sharing an address unless contrary instructions have been received from the affected shareholders. Avient will deliver promptly upon written or oral request a separate copy of our Annual Report on Form 10-K for the fiscal year ended December 31, 2023, Proxy Statement or Notice of Internet Availability of Proxy Materials, as applicable, to a shareholder at a shared address to which a single copy of the documents was delivered.

GEON EXP DB 15020607601 WHT 1082 GEON EXP DB 15020607602 WHT 1082 STAN-TONE DB-15597 HI LITE BLUE

GEON EXP DB 1502064202 WHITE 1221 GEON EXP DB 15020614201 SAGE 3329 STAN-TONE DB-15597 HI LITE BLUE

GEON EXP DB 15021305606 WHITE 1610 GEON EXP DB 15021305605 WHITE 1610 STAN-TONE DB-15597 HI LITE BLUE

STAN-TONE DB-34896 PINK2 CT004 STAN-TONE DB-34895 GREEN2 CT021 STAN-TONE DB-15597 HI LITE BLUE