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. | ||
| 拠点 | ||
| Bauxite mines | ||
| ： | Weipa -
Queensland Boke - West Africa |
|
| Alumina refineries | ||
| Eurallumina -
Sardinia QAL - Queensland Comalco Alumina Refinery - Gladstone |
||
| Aluminium smelters | ||
| Bell Bay -
Tasmania Boyne Smelters - Queensland Tiwai Point - New Zealand |
||
株主 Rio Tinto (100%)
歴史
| 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.
Notice to London Stock
Exchange
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.
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.