Comalco Limited Production Report Production Report for the Quarter Ended December 31, 1999.Business Editors LONDON--(BUSINESS WIRE)--Jan. 25, 2000 Rio Tinto Rio Tinto may refer to:
See: New York Stock Exchange : RTP (1) (Rapid Transport Protocol) The protocol used in IBM's High Performance Routing (HPR) system. (2) (Realtime Transport Protocol) An IP protocol that supports real time transmission of voice and video. ) made the following was announcement to the London Stock Exchange London Stock Exchange London marketplace for securities. It was formed in 1773 by a group of stockbrokers who had been doing business informally in local coffeehouses. at 3:00 p.m. (GMT (Greenwich Mean Time) See UTC. GMT - Universal Time 1 ). -- Weipa achieved record production and shipments in 1999 as it continued to benefit from the 1998 upgrade and increased demand from bauxite bauxite (bôk`sīt, bŏk`–), mixture of hydrated aluminum oxides usually containing oxides of iron and silicon in varying quantities. customers. -- Queensland Alumina Limited Queensland Alumina Limited is the one of the largest alumina refineries by alumina production capacity in the world, located in Gladstone, Australia. Operating since 1967, the refinery has a capacity to produce 3.95 million tonnes of alumina a year. and Eurallumina SpA achieved record alumina alumina (əl  `mĭnə) or aluminum oxide, Al2O3, chemical compound with m.p. about 2,000°C; and sp. gr. about 4.0. production as process improvements continue.-- The Bell Bay, Boyne Boyne, river, c.70 mi (110 km) long, rising in the Bog of Allen, Co. Kildare, E Republic of Ireland, and flowing NE through Co. Meath, past Trim, to the Irish Sea near Drogheda. Salmon is caught in the river. Island and Tiwai Point Coordinates: Tiwai Point lies at the entrance to Bluff Harbour on the southern coast of the South Island of New Zealand. A spit which extends from the western end of the Awarua Plain, it lies between Awarua Bay to the north and Foveaux Strait to the smelters all achieved record daily average aluminium production. Production gains were achieved by all three smelters due to higher amperages and ongoing process improvements.
Comalco Limited Production Report
Production report for the quarter ended December 31, 1999
Fourth First Second Third
quarter quarter quarter quarter
1998 1999 1999 1999
(`000 tonnes)
Mining &Refining
Weipa mine,
Queensland (Comalco 100%):
Beneficiated bauxite
production 2,716 2,931 2,675 2,784
Metal grade bauxite
shipments 2,612 2,513 2,665 3,019
Calcined bauxite
production 47 20 32 27
Boke mine, Guinea
(Comalco 4%):
Bauxite production 159 107 104 53
Queensland Alumina Limited,
Queensland (Comalco 30.3%)
Alumina production 276 272 274 277
Eurallumina SpA, Sardinia
(Comalco 56.2%)
Alumina production 134 130 133 142
Smelting
Primary aluminium production:
Bell Bay, Tasmania (Comalco 36.4 37.0 37.2 37.9
100%)
Boyne Island, Queensland 65.7 64.2 66.8 68.0
(Comalco 54.2%)
Tiwai Point, New Zealand 64.2 63.1 64.5 65.6
(Comalco 79.4%)
Total Comalco share 166.2 164.3 168.5 171.6
Total sales of Comalco
produced aluminium 174.1 167.3 166.6 169.3
Fourth Full Full
quarter Year Year
1999 1998 1999
(`000 tonnes)
Mining &Refining
Weipa mine, Queensland
(Comalco 100%):
Beneficiated
bauxite production 2,997 9,308 11,386
Metal grade bauxite
shipments 2,997 9,787 11,194
Calcined bauxite production 34 133 112
Boke mine, Guinea (Comalco 4%):
Bauxite production 177 429 441
Queensland Alumina Limited,
Queensland (Comalco 30.3%)
Alumina production 279 1,058 1,101
Eurallumina SpA, Sardinia
(Comalco 56.2%)
Alumina production 141 520 546
Smelting
Primary aluminium production:
Bell Bay, Tasmania (Comalco 39.0 141.9 151.1
100%)
Boyne Island, Queensland 68.7 257.3 267.7
(Comalco 54.2%)
Tiwai Point, New Zealand 66.1 252.0 259.4
(Comalco 79.4%)
Total Comalco share 173.8 651.2 678.2
Total sales of Comalco produced
aluminium 173.3 659.8 676.5
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