Many US companies publish lists of suppliers. These examples do not show individual components, but may shine some light on things: https://www.apple.com/suppl

Many US companies publish lists of suppliers. These examples do not show individual components, but may shine some light on things: https://www.apple.com/supplier-responsibility/pdf/Apple-Supplier-List.pdf https://www.apple.com/supplier-responsibility/pdf/Apple-Supp... https://www.cisco.com/c/dam/en_us/about/supply-chain/cisco-supplier-list.pdf https://www.cisco.com/c/dam/en_us/about/supply-chain/cisco-s...