Annual Report 2007

Primary metal projects

Sohar (Rio Tinto: 20 per cent)
In 2007, construction advanced on time and on budget at the 350,000 tonnes per annum smelter at Sohar, Oman. When complete, the 350,000 tonne potline would be the world’s largest both in terms of capacity and overall length, utilising the world’s most advanced commercial technology, the RTA owned AP35 smelting technology. The smelter is expected to produce aluminium ingot for export commencing in the first half of 2008. Once operational, the smelter is expected to be positioned in the first quartile of the industry cost curve.

A second potline of similar size is currently the subject of discussions among the joint venture partners. Under the original agreement between the partners, RTA has the right to take up to 60 per cent of this second potline.

Hydropower (Rio Tinto: 100 per cent)
On 26 April 2007, the former Alcan announced the investment of US$130 million in a new, power efficient hydro generator to be installed at the group’s Shipshaw power facility in Quebec, Canada. The new generator will optimise the performance of the facility and improve the efficiency with which the water flow is utilised. In addition, on 30 January 2008, the group announced an investment of US$90 million in its Lochaber, Scotland hydro-electric facilities, designed to ensure the future of smelting in the Highlands of Scotland for many years to come. The project, which will see the installation of new hydro-electric turbo generators, is expected to commence in 2009 and be completed by 2012.

Spent pot lining facility (Rio Tinto: 100 per cent)
RTA is building a US$180 million aluminium spent pot lining recycling plant in Quebec’s Saguenay-Lac-Saint-Jean region of Canada. This unique industrial scale pilot plant is expected to have a capacity of approximately 80,000 tonnes to recycle spent pot lining using Alcan’s proprietary technology.

Spent pot lining is the residual material generated in the de-lining of pots following the aluminium smelting electrolysis process. The spent pot lining is composed of carbon and various inert elements and is typically pre-treated and land filled under strict precautions. Through this new process, all of the spent pot lining will be recyclable, providing the global aluminium industry with a sustainable re-usable solution for spent pot lining by-products.

The plant’s technology was developed at RTA’s Arvida Research and Development Centre and is expected to begin pot lining treatment operations in 2008.

Kitimat (Rio Tinto: 100 per cent)
In 2006, Alcan announced its intention to modernise the existing Kitimat smelter, replacing the current Soderberg technology with industry leading AP35+ prebake technology and increasing smelter capacity to 400,000 tonnes per annum. The facility will take advantage of the RTA owned Kemano hydro-electric facility, with a capacity of 896 MW, and access to the Pacific Rim in terms of raw materials and metal markets, while reducing the environmental footprint of the existing plant by 40 per cent by reducing GHG generation by around 500,000 tonnes per annum.

Total investment in respect of the project is expected to be around US$2 billion. On 30 January 2008, the third and final condition for proceeding to board approval of the project was completed with clearance from the British Columbia Utilities Commission in respect of BC Hydro’s 2007 Energy Purchase Agreement with RTA. The other two hurdles were the securing of an acceptable labour agreement for construction and start up and assurances on environmental permitting issues. Advanced feasibility studies have been completed and the project is expected to be submitted for approval during 2008, on which basis first metal can be expected in 2011. When completed, the smelter is expected to be positioned in the first quartile of the industry cost curve.

Quebec (Rio Tinto: 100 per cent)
In December 2006, the former Alcan announced a plan to build a US$550 million pilot plant at its Complexe Jonquière site in Quebec, Canada to develop the company’s proprietary AP50 smelting technology. The pilot plant is expected to produce approximately 60,000 tonnes of aluminium per annum and will be the platform for future generations of AP50 technology. The first of its kind, the plant is the start of a planned ten year US$1.8 billion investment programme in Quebec’s Saguenay–Lac-Saint-Jean region, involving up to an additional 390,000 tonnes annually of new smelting capacity by 2015. The new AP50 pilot facility will be the cornerstone of an industrial strategy developed by RTA with the support of the Government of Quebec. Engineering and feasibility studies are advancing as are site preparation activities, and initial approval is expected around the middle of 2008. When completed, the smelter is expected to be positioned in the first quartile of the industry cost curve.

Coega (Rio Tinto: 80 per cent)
Feasibility studies have been substantially completed in respect of the construction of a 720,000 tonnes per annum smelter at Coega, Eastern Cape Province, South Africa. Although an energy contract with the South African utility, ESKOM was signed in November 2006, ongoing discussions are aimed at ensuring expected timelines for requisite ESKOM generation capacity are matched with the smelter project. When completed, the smelter is expected to be positioned in the first quartile of the industry cost curve.

Saudi Arabia (Rio Tinto: 49 per cent)
In 2007, a heads of agreement was signed with Ma’aden (the Saudi Arabian Mining Company) to investigate the development of a bauxite mine at Az Zabirah, and construction of a power plant, alumina refinery and aluminium smelter complex at Ras Az Zawr, on the Gulf Coast of Saudi Arabia. Under the agreement, RTA is expected to take a 49 per cent interest in the project, with Ma’aden owning the remainder. Pre feasibility work is scheduled to be completed in 2008. The proposed aluminium smelter is planned to have a capacity of 720,000 tonnes per annum and if completed, is expected to be positioned in the first quartile of the industry cost curve. The proposed alumina refinery would have a capacity of 1.6 million tonnes per annum and if completed, is expected to be positioned in the second quartile of the industry cost curve. Most of the smelter output, at least initially, is planned for export.

Sarawak (Rio Tinto: 60 per cent)
On 7 August 2007, Rio Tinto and Cahya Mata Sarawak Berhad signed a heads of agreement for the proposed development of a smelter in the State of Sarawak, Malaysia. Under the signing of the heads of agreement, detailed feasibility studies on the design, engineering, construction, commissioning and operation of a smelter with an initial capacity of 550,000 tonnes are being undertaken. The smelter is expected to have the capability to be expanded to 1.5 million tonnes per annum. It is proposed that electricity for the smelter may come from the Bakun hydro-electric dam, which is currently under construction. If completed, the smelter is expected to be positioned in the first quartile of the industry cost curve.

Abu Dhabi (Rio Tinto: 50 per cent)
Discussions are continuing with General Holding Corporation of Abu Dhabi for a development that could result in a smelter with a first stage production capacity of 720,000 tonnes of metal per annum. Abu Dhabi Aluminium Company (Adalco) has been formed to manage the joint venture. If completed, the smelter is expected to be positioned in the first quartile of the industry cost curve.

Iceland (Rio Tinto: 100 per cent)
During 2007, the community near RTA’s ISAL smelter expressed dissatisfaction with a proposed expansion and modernisation of the facilities, by narrowly rejecting a town planning referendum which included the matter. RTA is continuing to assess options for the possible expansion of its smelting activities in Iceland.

Cameroon (Rio Tinto: 46.7 per cent)
A potential upgrade and expansion of the Alucam smelter by 200,000 tonnes per annum, together with the construction of a new 330 MW hydro-electric power station, is being contemplated. Pre-feasibility studies have been completed and environmental authorisations have been obtained. RTA and the Government of Cameroon committed on 29 November 2007 to additional access to water resources to facilitate the launch of technical and pre-feasibility studies for a new greenfield smelter with potential capacity of 400,000 tonnes per annum. If completed, these smelter projects are expected to be positioned in the first quartile of the industry cost curve.

Back to top

Print

Close