Gallium-based components can be found in a variety of products ranging from compact disk players to advanced military electronic warfare systems. This Article discusses the uses of gallium in optoelectronic devices and integrated circuits and other applications. It provides information on the properties and grades of gallium arsenide and on the resources of gallium. The Article also describes the techniques for recovering gallium from bauxite, zinc ore, and other sources. It explains the fabrication process and the secondary recovery process of gallium arsenide crystals and some purification methods. The Article also provides information on the world supply and demand of gallium and the research and development on gallium arsenide integrated circuits.