Comalco Ltd http://www.comalco.com.au/
2000年7月にRio Tinto のTOBで100%になった。それまでは72.43%を所有
2007/7/17 Rio Tinto、Alcanを買収 アルミ生産で世界最大に
|：||Comalco is a supplier of bauxite, alumina and primary aluminium to world markets, with sales in 1999 of over $2.3 billion|
Comalco New Zealand
|A wholly-owned subsidiary of Comalco Limited which owns and manages the company's aluminium interests in New Zealand.|
Boke - West Africa
QAL - Queensland
Comalco Alumina Refinery - Gladstone
|Bell Bay -
Boyne Smelters - Queensland
Tiwai Point - New Zealand
株主 Rio Tinto (100%)
|1955||It was only in 1955, when Harry Evans, a geologist with Consolidated Zinc Pty Ltd, was searching for oil on Cape York Peninsula, that the significance of Weipa's red cliffs was realised. Evans identified the red earth as bauxite - good grade and easily extractable.|
|1956||Commonwealth Aluminium Corporation Pty Ltd was formed to develop the bauxite deposits at Weipa. This marked the beginning of Australia's integrated aluminium industry.|
|1957||The Commonwealth Aluminium Corporation Pty Ltd entered into a partnership with the British Aluminium Company Ltd, and soon afterwards the company became known as Comalco.|
|1970||Comalco became a public company.|
|1971||Tiwai Point plant officially opened.|
|1982||Boyne Island smelter officially opened.|
|2000||RioTinto obtains 100% ownership of Comalco.|
Rio Tinto http://www.riotinto.com/
Rio Tinto plc and Rio Tinto Limited operate as a single business entity with the same board of directors, a unified management, and a combined portfolio of mineral resources which is well balanced by both geography and commodity.
2000/7/11 Rio Tinto
Notice to London Stock
Rio Tinto Limited has today completed the compulsory acquisition procedures under its takeover offer for all shares in Comalco Limited and Comalco is now wholly owned by Rio Tinto Limited.
For the information of the market, a total of 2,142,634 Rio Tinto Limited shares and 3,161,939 Rio Tinto plc shares have been issued to those Comalco shareholders who elected to receive shares under the Offers.
2000/2/24 Rio Tinto
Rio Tinto offer for full ownership of Comalco
Rio Tinto Limited announced today that it proposes to make a cash offer of A$9.50 per share for all the shares in Comalco Limited it does not already own. Comalco is already 72.43 per cent owned by Rio Tinto.