STAN-TONE MB- PINK STAN-TONE VC- BLACK STAN TONE

STAN-TONE DB-103047 BROWN STAN-TONE HCC- BLACK IO STAN-TONE HCC-103057 GREY

STAN-TONE HC PLUS 107341 GREY LSR STAN-TONE HCC-107347 GREEN 369 STAN-TONE DB-15597 HI LITE BLUE

STAN-TONE VC-23846 RED STAN-TONE VCP-78201 RED STAN-TONE DB-27520 RED

STAN-TONE 83EP02 BROWN STAN-TONE 83MB02 BROWN STAN-TONE MB-31257 GREY

Avient’s chief operating decision maker uses these financial measures to monitor and evaluate the ongoing performance of Avient and each business segment and to allocate resources. Avient Q4 2024 performance vs. Senior management believes these measures are useful to investors because they allow for comparison to Avient's performance in prior periods without the effect of items that, by their nature, tend to obscure Avient's operating results due to the potential variability across periods based on timing, frequency and magnitude.

Underlying organic sales growth plus the addition of Magenta's fiber colorant business and Kraton's TPE business was more than offset by lower year-over-year selling prices in Distribution, PP&S, and Designed Structures and Solutions (DSS), due to lower hydro-carbon based raw material costs. 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. Share-based compensation expense

STAN-TONE HCC-31251 WHITE STAN-TONE VCP-16167 RED STAN-TONE MB-31254 WHITE

STAN-TONE MB- BLACK STAN-TONE MB- BLUE EPR STAN-TONE EPX- WHITE

STAN-TONE MB-23047 BROWN STAN-TONE MB-23005 STONE STAN-TONE MB-23042 SABLE