Sumitomo to Expand High-Purity Alumina Capacity

Sumitomo Chemical says it has decided to expand the production capacity for high-purity alumina at its manufacturing facility at Niihama, Ehime Prefecture, Japan from 1,600 m.t./year to 3,200 m.t./year. The expansion will be completed during the second quarter of 2012. High-purity alumina is used mainly as a raw material for sapphire substrates used in light-emitting diodes (LED). “In recent years, with the spread of LEDs used for backlights in personal computers and liquid crystal display televisions as well as in lighting applications, demand for...

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