BK PE CONDUCTIVE MB The Product Code (a.k.a.  Avient Product Code (Material or Material Number) may be found on any of the following:

STAN-TONE HCC-33057 CONDUCTIVE BLACK The Product Code (a.k.a.  Avient Product Code (Material or Material Number) may be found on any of the following:

CONDUCTIVE BLACK CMPD The Product Code (a.k.a.  Avient Product Code (Material or Material Number) may be found on any of the following:

BK PE CONDUCTIVE MB 2 The Product Code (a.k.a.  Avient Product Code (Material or Material Number) may be found on any of the following:

CONDUCTIVE BLACK MB 2 The Product Code (a.k.a.  Avient Product Code (Material or Material Number) may be found on any of the following:

LLDPE CONDUCTIVE BLACK MB The Product Code (a.k.a.  Avient Product Code (Material or Material Number) may be found on any of the following:

CONDUCTIVE BLACK UHMW The Product Code (a.k.a.  Avient Product Code (Material or Material Number) may be found on any of the following:

S185.1E PFA CMPD CONDUCTIVE The Product Code (a.k.a.  Avient Product Code (Material or Material Number) may be found on any of the following:

Other (see instructions) 4 Exemptions (codes apply only to certain entities, not individuals; see instructions on page 3): Exempt payee code (if any) Exemption from FATCA reporting code (if any) (Applies to accounts maintained outside the U.S.) 5 Address (number, street, and apt. or suite no.) The FATCA code(s) entered on this form (if any) indicating that I am exempt from FATCA reporting is correct. No. 10231X Form W-9 (Rev. 10-2018) AVIENT CORPORATION ✔ 5 D 33587 WALKER ROAD AVON LAKE, OH 44012 3 4 1 7 3 0 4 8 8 7/20/2020

THE IMPACT Avient was able to reduce lead time on these newly developed additives by a week versus the original supplier, enabling this customer to better manage and control inventory levels. Finally, Avient’s willingness and ability to conduct and provide testing results saved the customer time and money. In fact, this customer did not have the capability to design tests or perform them, and its previous supplier didn’t share any information.