

This document serves as a guide for the ATI Supplier Onboarding process, detailing the necessary information and documentation required for suppliers to establish an account with ATI. It outlines the types of suppliers and the corresponding onboarding forms, including the Certificate of Insurance and various agreements. The checklist specifies the required attachments, such as W-9 and W-8BEN forms, and emphasizes the importance of compliance with ATI's Supplier Expectations and Supply Chain Policies. Additionally, it includes instructions for completing the onboarding forms, ensuring that all necessary information is provided to avoid delays in processing. The document also highlights the minimum insurance requirements that suppliers must meet, including liability coverage and workers' compensation. Furthermore, it addresses the need for suppliers to acknowledge ATI's payment terms and conditions, as well as the necessity for electronic transmission of purchase orders and invoices. Overall, the checklist provides a comprehensive framework for suppliers to follow during the onboarding process.