Profile: Wogen trades physically in a wide range of off-exchange metals. We trade non-ferrous metals, electronic metals, ferro-alloys and the platinum group metals. Bismuth is also used in the production of X-rays and scanners and has recently replaced lead in shot gun cartridges. Gallium is used in LED's to provide traditional green, red and the full range of colors found in digital systems. Selenium was used as an alloy in the production of photocopier drums.