Mary Belfi has over 30 years of experience in sourcing, accounting, and administrative roles in the plastics industry. She is currently an Accounts Payable Coordinator at PolyOne Corporation, where she enters payments, resolves invoice issues, and maintains materials in SAP and Ariba systems. Previously she was a Sourcing Coordinator at PolyOne, negotiating with vendors and ensuring plants had necessary materials. She has experience in resin sourcing, Six Sigma training, and system conversions during acquisitions.