Connect with us:
Our vision is to be the global leader in sustainable gold mining

Media

Gold Fields declares 2013 Mineral Reserves and Mineral Resources

Monday, 24 February 2014

Johannesburg, 24 February 2014: Gold Fields Limited (Gold Fields)(JSE, NYSE, NASDAQ Dubai: GFI) is pleased to announce its Mineral Reserve and Mineral Resource declaration as at 31 December 2013. 

Gold Fields’ managed gold Mineral Resources totalled 136.7 million ounces (December 2012: 149.3 million ounces) and Mineral Reserves 52.6 million ounces (December 2012: 59.4 million ounces).

The decline in the Group’s Mineral Reserves is mainly attributable to a US$1,300/oz gold price used compared with the US$1,500/oz gold price used in the December 2012 declaration. Other than price impacts, mining depletion of 2.3 million ounces was the main contributor to the change in Mineral Reserves.

Gold Fields’ managed copper Mineral Resources totalled 14,038 million pounds in December 2013 (December 2012: 15,237 million pounds) and Mineral Reserves 712 million pounds (December 2012: 1,039 million pounds).

On an attributable basis gold Mineral Resource and Mineral Reserve figures are 113.4 million ounces (125.5 million ounces) and 48.6 million ounces (54.9 million ounces) respectively, while attributable copper Mineral Resources are 7,120 million pounds (8,622 million pounds) and Mineral Reserves 708 million pounds (1024 million pounds) respectively.

The 2013 declaration is a reflection of Gold Fields’ restructuring over the past 18 months, during which the Group embarked on a fundamental shift in strategy away from an emphasis on ounces of production to a primary focus on driving margins and cash flow.

To this end Gold Fields engineered a structural shift in the Group’s production and cost base, which included the elimination of marginal mining at a number of its operations as well as a significant reduction of its growth and exploration portfolio. In addition Gold Fields has achieved greater regional production diversification with the unbundling of Sibanye Gold in South Africa in February 2013 and the acquisition of the Yilgarn South assets in Australia in October 2013.

The South Africa Region comprises 56% of the Group’s December 2013 managed gold Mineral Resources, West Africa 12%, Australasia 9%, the Americas 2% and the Growth projects (Arctic Platinum, Chucapaca, Yanfolila, Woodjam and Far Southeast) 21%. The South Africa Region comprises 73% of the Group’s managed gold Mineral Reserves, West Africa 16%, Australasia 7% and the Americas 4%.

The table below shows the operating mines’ managed gold Mineral Resources and Mineral Reserves for December 2013 and the comparable December 2012 declaration:

  Mineral Resources Mineral Reserves
  31 Dec 2013   Dec-12 31 Dec 2013   Dec-12
GOLD Tonnes
(Mt)
Grade
(g/t)
(Moz) (Moz) Tonnes
(Mt)
Grade
(g/t)
(Moz) (Moz)
Australia Operations                
Agnew 16.8 5.53 2.99 3.50 3.0 7.37 0.71 1.15
Lawlers 2.4 8.72 0.67 - 1.2 6.24 0.24 -
Darlot 1.6 5.26 0.27 - 1.0 5.09 0.15 -
Granny Smith 36.2 2.80 3.25 - 4.1 6.34 0.84 -
St Ives 38.4 3.51 4.34 4.72 20.7 3.03 2.02 2.19
South African Operation                
South Deep 382.8 6.20 76.25 79.30 224.4 5.30 38.22 39.11
Americas Operation                
Cerro Corona 125.3 0.82 3.32 3.70 67.1 0.94 2.03 2.77
West Africa Operations                
Damang 95.8 2.14 6.58 8.43 22.8 1.46 1.07 4.09
Tarkwa 275.7 1.16 10.29 14.56 218.8 1.03 7.27 10.08
Total Managed Operating Mines 975.0 3.44 107.96 114.21 563.2 2.90 52.56 59.40
Attributable to GFL 906.1 3.43 100.05 105.59 520.4 2.91 48.61 54.85

A regional overview shows the following highlights:

The Australasia Region has a declared managed gold Mineral Resource of 11.5 million ounces (December 2012: 8.2 million) and a gold Mineral Reserve of 4.0 million ounces (December 2012: 3.3 million ounces). These figures are net of 0.7 million ounces from mined depletion, and include the Yilgarn South assets contribution of 4.2 million ounces and 1.2 million ounces to the Mineral Resource and Mineral Reserve declaration respectively.

At Granny Smith, open pit Mineral Reserves of 1.1 million ounces previously reported by Barrick Gold, have been excluded due to the lower gold price. At St Ives the discovery of the expansive Invincible deposit led to a maiden open pit Mineral Reserve declaration of 3,74 million tonnes at 4.09 g/t for 492,000 ounces.

The South Africa Region has a total declared managed gold Mineral Resource of 76.2 million ounces (December 2012: 79.3 million ounces) and a gold Mineral Reserve amounting to 38.2 million ounces (December 2012: 39.1 million ounces). These figures are net of 0.3 million ounces from mined depletion. The attributable ounces are 91.86% of the managed figure.

The Americas Region has a declared managed gold Mineral Resource of 3.3 million ounces (December 2012: 3.7 million ounces) and a gold Mineral Reserve of 2.0 million ounces (December 2012: 2.8 million ounces). The managed copper Mineral Resource and Mineral Reserve are 1,124 million pounds (December 2012: 1,302 million pounds) and 712 million pounds (December 2012: 1,039 million pounds) respectively. The figures for the Americas Region are net of 0.3 million ounces gold and 106 million pounds copper from mined depletion respectively.Gold Fields took a decision not to proceed with the Tailings Storage Facility (TSF) raise at Cerro Corona on economic grounds. This resulted in an approximate 400,000 oz decrease in Mineral Reserves, though the mine has the option to construct the raise in future.

The West Africa Region has a declared managed gold Mineral Resource of 16.9 million ounces (December 2012: 23.0 million ounces) and a gold Mineral Reserve of 8.3 million ounces (December 2012: 14.2 million ounces). These figures are net of about 1.0 million ounces from mined depletion.

The Mineral Reserves at Damang were reduced from 4.1 million ounces to 1.1 million ounces during 2013, as production from the Main Pit Cutback 2 is not economically viable at US$1,300/oz in its current configuration.

At Tarkwa, the exclusion of underground Mineral Resources and downsized pit shells, due to a lower gold price, impacted adversely on the declaration.

The gold Mineral Resource for Gold Fields’ Growth projects totalled 28.7 million ounces (December 2012: 35.1 million ounces) with the decline due to the exclusion of the Talas Project in Kyrgyzstan, which was sold in December 2013.

The following key parameters were used as the basis for estimation for the operating mines:

    Approved prices for plan as at
31/12/2012
Approved prices
31 December 2013
  Unit Resource Reserve Resource Reserve
Ghana & Peru Au – US$/oz 1,650 1,500 1,500 1,300
Australia Au – A$/oz 1,650 1,500 1,570 1,370
South Africa Au - R/kg 420 000 380 000 460 000 400 000
Peru Cu – US$/lb 3.90 3.50 3.50 3.00

The commodity prices used for the Mineral Reserve declaration are within the US SEC guidelines, as the gold price used (US$1,300/oz) is lower than the three year trailing average (US$1,550/oz) and more in line with the current spot price. The December 2013 Mineral Resource gold price has a premium of about 15% over the Mineral Reserve metal price.

The Group’s December 2013 Mineral Resource and Mineral Reserve statement is in accordance with the requirements of the South African Code for the Reporting of Exploration Results, Mineral Resources and Mineral Reserves (the SAMREC Code, 2007 edition) and Industry Guide 7 for reporting to the United States Securities and Exchange Commission (SEC). Other relevant international codes are recognised, where geographically applicable, such as the Australian Joint Ore Reserves Committee (JORC 2012) Code and the Canadian National Instrument (NI) 43-101.

Corporate governance on the overall regulatory compliance of these figures has been overseen and consolidated by the Gold Fields Competent Person Tim Rowland, who consents to the disclosure of this Mineral Resource and Mineral Reserve statement, and is Gold Fields’ Vice-President Mineral Resource Management and Mine Planning (PR. Sci. Nat. No. 400122/00, BSC (Hons) Geology, MSc Mineral Exploration, GDE Mining Engineering and FSAIMM, FGSSA and GASA), with 28 years’ relevant experience in the mining industry.

Full details of Gold Fields’ Mineral Reserves and Mineral Resources declaration will be released in the 2013 Mineral Resources and Mineral Reserves Supplement as an accompaniment to the 2013 Integrated Annual Review due by end-March 2013.


Back to previous page