Walk Free+Conflict mineral sourcing (sector specific)+Amazon.com, Inc.+2022+Discussion

p. 9: "Our process for mapping and addressing our risks related to mineral sourcing can be found in our most recent Conflict Minerals Report filed with the United States Securities and Exchange Commission."

see also p. 11: "Amazon continues to raise the bar on conflict minerals reporting that covers tin, tungsten, tantalum, and gold (3TG). In 2022, we implemented additional smelter due diligence protocols as we work toward 100% of tin, tungsten, tantalum, and gold mineral smelters and refiners in our supply chain being certified using a recognized minerals assurance program […]"