Electronics contain heavy metals, including lead, mercury, cadmium, and hexavalent chromium that can be harmful if released into the environment. Recycling electronics ensures these materials are safely managed and that valuable materials such as steel, glass, and plastic, as well as precious metals such as copper, gold, tin, silicon, and aluminum are reclaimed for the manufacturing of new products. Reusing and recycling raw materials from e-waste conserves natural resources and avoids pollution.