@melissasage
Intel started a movement toward ethically sourced materials quite a while ago and has made efforts to have a conflict-free supply chain:
"Like many companies in the electronics industry, Intel and our suppliers use minerals in manufacturing. In 2008, we began work to ensure that our supply chain does not source certain minerals—in particular, tantalum, tin, tungsten, and gold (3TG)—within the Covered Countries (Democratic Republic of the Congo (DRC) or adjoining countries) from mines under the control of armed groups who exploit mine workers to fund crimes against humanity."