Iridium is one of the rarest and most corrosion-resistant metals, used in high-temperature applications like spark plugs, crucibles, medical devices, and the production of synthetic sapphire for LEDs and screens. It plays a growing role in green hydrogen production as part of the proton exchange membrane (PEM) catalyst for electrolysis. Umicore recovers iridium as a byproduct of nickel and copper refining and supports its use in advanced, long-lasting technologies.
