Controversial raw materials

Mobile phones and other electronic products have high quality capacitors in them, which contain Tantalum. A major source of Tantalum is the coltan ore from some illegal mines in the Democratic Republic of Congo operated by rebel groups to get money to fund their civil war.[27] A typical mobile phone has 40 milligrams of Tantalum. A conflict-free source of Tantalum are mines at Wodgina in the Pilbara region near Perth, Australia.