The document discusses the extraction of raw materials used in electronics. Over 1,000 materials are mined from locations around the world, with some posing health and environmental risks. Specific materials identified as potentially harmful include barium, beryllium, cadmium, copper, gold, hexavalent chromium, lead, mercury, nickel, tin, and zinc. Extraction methods can endanger worker health and safety, and pollution from mining has contaminated water sources and ecosystems. In some areas, conflict has arisen over control of mines extracting metals used in electronics.