Salt
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Since the first shipment of 19,000 tonnes in April 1972, to Central Glass in Japan, annual sales of salt from Dampier Salt have increased from one million to four million tonnes per year at the Dampier operation.
The company's capacity was further increased with the purchase of the Lake MacLeod operation in 1978 and the Port Hedland operation in 2001. In 2004 the annual production capacity is nine million tonnes.
The total area under evaporation at Dampier Salts three sites is 19,500 hectares. This is the equivalent of around 27,900 soccer fields.
At its three sites Dampier Salt evaporates on average 1,100,000,000 litres of water a day. This quantity of water would fill over 18,000 household swimming pools.
| Operation | Rio Tinto share | Commodity | Total annual production, '000 tonnes (as at December 31 2008) |
|---|---|---|---|
| Dampier Salt (u) | 64.9% | Salt | 6,135 |
Production data notes
(u) Rio Tinto increased its shareholding in Dampier Salt Limited to 68.4 per cent at the beginning of July 2007.