see p.2: link to "Dell Technologies Conflict Minerals Disclosure Report"

p.2

"Dell uses raw materials, including minerals, in its products. For example, gold is used in circuit boards, and tantalum is used in capacitors. Some of these minerals are mined in conflict-affected and high-risk areas. While we do not purchase minerals directly from mines, smelters, or refiners, our responsible sourcing requirements extend throughout our entire supply chain.

Dell prioritizes the identification and assurance of smelters or refiners (SORs) used to process material supplied by mines or mineral agents. This includes an independent, third-party assessment of management systems and sourcing practices to validate conformance with the Responsible Minerals Assurance Process (RMAP). To track conformance rates, we require Suppliers that use 3TG (tin, tungsten, tantalum, and gold — known as 3TG) and/or cobalt to complete the Conflict Minerals Reporting Template or the Cobalt Reporting Template to report on SORs within their own supply chains.

Given the many supply chain tiers involved and the size of smelting and refining operations, multiple suppliers will likely include some of the same SORs in their reporting. We collaborate with Suppliers to strengthen their capabilities and help them to remediate issues with SORs that may not be participating in any industry-recognized third-party assurance program to achieve conformance. If conformance cannot be achieved, Dell requires the Supplier to take immediate steps to remove non-conformant Suppliers and SORs. More information is available in the Dell Technologies Conflict Minerals Disclosure Report."