Umicore is a materials technology group with four business areas: the Catalysis group is one of the world's largest manufacturers of automotive emission control catalysts. This segment also includes precious metals chemistry.  Energy & Surface Technologies produces cobalt and specialty materials, electro-optic materials, thin film products and fuel cells. Applications for these products include rechargeable batteries and photovoltaics. The business area also comprises building products, electroplating, platinum engineered materials, technical materials, zinc chemicals + the 40% stake in Element Six Abrasives. Recycling is the world's largest recycler and refiner of complex materials containing precious metals. Precious metals management (trading, leasing, hedging. ...), battery recycling and jewellery & industrial metals are also included in this segment. The company's history goes back to the year 1837.