The scope of works calls for the addition of 128 pots to the current 120 cells at the seventh potline. The expansion will also add a further 36 pots to the ninth potline, which was completed in 2003 with 212 cells. Plans also include the installation of a technology fume treatment system at a cost of about $30 million.

The first tenders are due out imminently, with construction scheduled to begin by the end of September. Commissioning is due by the fourth quarter of 2006. SNC Lavalin has already been working on the expansion of the seventh potline. According to officials at Dubal, two further phases to increase capacity are also in the planning stage.