With effect from 1st November 2008, the Semiconductor
Materials and Optical Products lines, previously part of Saint-Gobain Quartz,
have been aquired by Heraeus Quarzglass, Germany.
The products affected by this takeover include flame fused TSC and OSC
ingots, plates, discs, rods and tubes, as well as SpectrosilŽ and VitreosilŽ
optical materials.