Exhibit 31.1 CERTIFICATION I, Robert M. Patterson Exhibit 31.2 CERTIFICATION I, Bradley C. Exhibit 32.2 CERTIFICATION PURSUANT TO 18 U.S.C.

When a product is classified as an "FDA grade" material, it designates that only 21 CFR, parts 170-199 approved materials are used in its formulation. Typical applications requiring NSF certification are potable water applications, water treatment systems, restaurant services and plumbing. Underwriters Laboratories is an independent, not-for-profit product safety and testing certification organization based in the US.

When a product is classified as an "FDA grade" material, it designates that only 21 CFR, parts 170-199 approved materials are used in its formulation. Typical applications requiring NSF certification are potable water applications, water treatment systems, restaurant services and plumbing. Underwriters Laboratories is an independent, not-for-profit product safety and testing certification organization based in the US.

We then develop and communicate the draft to internal stakeholders, soliciting feedback, and considering revisions before the standard is finalized and approved. Combined, Avient facilities have a total of 286 management system certifications. Additionally supplier self-assessments are completed through our Quality Management System (QMS) process that incorporates approval criteria for our most sensitive applications.

Exhibit 31.1 CERTIFICATION I, Robert M. Patterson Exhibit 31.2 CERTIFICATION I, Jamie A. Exhibit 32.2 CERTIFICATION PURSUANT TO 18 U.S.C.

On June 23, 2016, the UK held a referendum in which UK voters approved an exit from the EU. Wulfsohn      POLYONE CORPORATION 67 Exhibit 31.1 CERTIFICATION I, Robert M. POLYONE CORPORATION Exhibit 32.2 CERTIFICATION PURSUANT TO 18 U.S.C.

We are committed to doing business the right way, including without limitation, conducting business ethically and to minimizing the risk of slavery and human trafficking in our own business and in that of our suppliers as much as possible This statement is approved by ColorMatrix by its board of directors.