regulatory excellence and compliance with laws and regulations that apply to us in all aspects of our operations, as well as continuous improvement of our processes to help ensure we meet the needs of all stakeholders. For product quality, these laws and regulations include the Drug Supply Chain Security Act in the U.S., the Food and Drugs Act and Good Manufacturing Practices in Canada, and the Good Manufacturing and Distribution Practices guidelines in Europe. Our quality management systems are based on international procedures and industry standards to help ensure the products we handle and distribute, the products we source in our private-label line of business, and the packaging and labeling thereof, follow applicable regulations and are in line with or exceed industry best practices. For example, more than 65% of sites with warehouses in Europe, and our All About Health Pharmaceuticals business, are ISO 9001 certified, and our Europe-based McKesson Global Sourcing Quality and Regulatory team is certified to the ISO 13485 standard. When receiving our globally sourced private-branded products, we verify the quantity, supplier name and product name through the purchase order, and we monitor that the product is not set to expire soon. When potential product quality incidents occur, we work to respond promptly and follow a Corrective Action – Preventive Action (CAPA) process. To prevent counterfeit products from entering the legal distribution network and to help ensure the integrity of the products we take ownership of, we follow a supplier qualification procedure for vendors. Potential suppliers are vetted using industry accepted tools. A mutually agreed upon distribution agreement and accompanying policy and procedures document govern the relationship. As part of this process, we perform regular audits and checks of authorizations and certifications, as appropriate. We comply with manufacturer requirements for handling and distributing products. The needs and requirements of various manufacturers are different, so our contractual commitments, controls and processes vary by manufacturer. We evaluate and validate manufacturers’ performance against their contractual arrangements. Each year, we also hold a supplier award ceremony to recognize suppliers for their commitment to collaboration, and supply chain safety, quality and efficiency. >65% of sites with warehouses in Europe, and our All About Health Pharmaceuticals business, are ISO 9001 certified. Introduction Stories Employees Access Equity Climate Operations >Table of Contents | 64 FY21 Impact Report

McKesson ESG Report - Page 64 McKesson ESG Report Page 63 Page 65