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Wacker expands polysilicon production

Wacker's Polysilicon division is to expand polysilicon production at its Burghausen site in Germany. Capacity will be ramped up in two stages - from 2006, annual production will rise by 500 metric tons and by another 1000 metric tons from 2007. After the expansion is complete, up to 6500 metric tons of polysilicon will be produced annually at Burghausen.
Wacker's Polysilicon division is to expand polysilicon production at its Burghausen site in Germany. Capacity will be ramped up in two stages - from 2006, annual production will rise by 500 metric tons and by another 1000 metric tons from 2007. After the expansion is complete, up to 6500 metric tons of polysilicon will be produced annually at Burghausen.

The investment totalling EUR75mn is mainly due to increased global demand for polycrystalline silicon needed to manufacture solar cells. As a result, some 50 new jobs will be created at the Burghausen site.

To pursue new avenues of processing photovoltaics-grade silicon crystals, Wacker Polysilicon is developing an innovative process for producing granular polysilicon. The "fluidised-bed process" uses trichlorosilane as a raw material.

The advantages of silicon granules are not only their suitability for continuous crystallisation processes, but also their improved cost-effectiveness in the production of solar-grade silicon. The first two pilot reactors are expected to start operating in October 2004.

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