BHP today announced approval of capital expenditure of US$2.46 billion for the Spence Growth Option (SGO) at the Spence open-cut copper mine in northern Chile, which will extend the mine life by more than 50 years.
BHP Chief Executive Officer Andrew Mackenzie said the SGO project supports BHP’s strategy to deliver near-term, valuable copper production.
In the first 10 years of operation, incremental production from SGO will be approximately 185 ktpa of payable copper in concentrate and 4 ktpa of payable molybdenum, with first production expected in the 2021 financial year. The current copper cathode stream will continue until the 2025 financial year. The project will convert 1.3 Bt1 of Measured and Indicated Mineral Resources to hypogene sulphide Ore Reserves.
SGO was rigorously evaluated using BHP’s Capital Allocation Framework and, at mid-case consensus prices, has an expected internal rate of return of 16 per cent and an expected payback period of 4.5 years from first production.
Chief Executive Officer, Andrew Mackenzie, said that “Execution of the Spence Growth Option will create long-term value for shareholders in one of our preferred commodities. The project significantly extends the life of our Spence operation and unlocks the potential of the large, quality resource.”
“SGO has been extensively studied and we have made significant improvements to project cost and design so that it is able to compete in our portfolio of attractive development options.”
The SGO project will draw on experience developed in the construction of the Organic Growth Project 1 concentrator and desalination plant at Escondida, and create up to 5,000 jobs during the construction phase. The project includes the design, engineering and construction of a conventional large-scale sulphide concentrator for both copper and molybdenum with a 95 ktpd nominal ore throughput capacity.
In addition, SGO will require a new 1,000 litre per second desalination plant located at Mejillones Bay and a 154 km water pipeline from the plant to the Spence mine site. These will be built and operated by a third party under a Build, Own, Operate and Transfer contract, which has been separately awarded, with nominal, undiscounted value of lease payment obligations over the 20 year contract term totalling US$1.43 billion.
1 Hypogene Measured Resources of 520 Mt @ 0.47%TCu, 190 ppm Mo; Indicated Resources of 800 Mt @ 0.45%TCu, 130 ppm Mo. Reported for the year ended 30 June 2016 in the 2016 BHP Annual Report which can be found at www.bhp.com. The company confirms that it is not aware of any new information or data that materially affects the information included in the original market announcement and, that all material assumptions and technical parameters underpinning the Mineral Resource estimates continue to apply and have not materially changed. The company confirms that the form and context in which the Competent Person’s finding are presented have not been materially modified from the original market announcement.
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