Africa produces more than 60 metal and mineral products and is a major producer of several of the world’s most important minerals and metals including Gold, PGE’s, Diamonds, Uranium, Manganese, Chromium, Nickel, Bauxite and Cobalt. It is interesting to note that Africa's contribution to the world's major metals (copper, lead and zinc) is less than 7%. As a result silver production is low (less than 3% of the world's production) due to the fact that most silver is produced as a by product of lead - zinc and copper mining. Although under explored, Africa hosts about 30% of the planet's mineral reserves, including 40% of gold, 60% cobalt and 90% of the world's PGM reserves - making it a truly strategic producer of these precious metals.

The increase in exploration and mine development in Africa has been primarily focused on gold and diamond exploration. Undoubtedly, there is still great scope for these commodities, but riding on the back of improving base metal prices, this sector could see an increase in activities. Mozambique, Nigeria and Madagascar are but a few countries that have tremendous potential for base metal and industrial mineral deposits.

South Africa, Ghana, Zimbabwe, Tanzania, Zambia and the DRC dominate the African Mining industry, whilst countries such as Angola, Sierra Leone, Namibia, Zambia and Botswana rely heavily on the mining industry as a major foreign currency earner. Unfortunately, several African civil wars are funded by (and often caused by) some of these commodities, in particular diamonds.

Major new mines opening in Africa or under development are distributed between South Africa, Namibia, Botswana, Tanzania, and Gabon producing gold, diamonds, niobium products, PGE’s, chrome and base metals. Major discoveries over the last year include the discovery of several potentially diamondiferous kimberlitic in Mauritania, and still in the diamond scene, the potential marine deposits in offshore southern Namibia.

   
 
   

Cobalt Producers & Cobalt Demand

Cobalt is an element that has many diverse and critical uses.  In most applications, substitution for cobalt yields lower product performance.  Below are cobalt’s most common usages.

2006 Global Cobalt Use(1)

 
Gasoline Prices

% of Market

Batteries - Cell phones, computers, hybrid vehicles, portable tools, etc.

22

Super Alloys - Turbine blades, mainly jet engines

22

Chemicals - Includes pigments and dyes

27

Wear Resistant Alloys - Hard facing and cobalt carbide

11

Catalysts - Includes Gas-to-Liquid conversions

11

Magnets - High performance applications

7

Cobalt in rechargeable batteries is the fastest growing use.  Nickel metal hydride and lithium-ion batteries both contain cobalt and are used in hybrid electric vehicles (HEVs), computers, cell phones, portable tools, audio/visual units, and numerous electronic devices.  The fastest growing segment of battery applications is for HEVs, which reduce air pollution and fuel consumption by at least 50% compared to conventional vehicles.  The HEV “plug-in” option is even more environmentally friendly, and includes an extra cobalt-bearing battery that can be charged from electrical outlets and achieve fuel economies that exceed 100 miles per US gallon.  In the US, roughly one-third of all CO2 emissions come from transportation sources.

The Toyota Prius HEV was named 2004 Motor Trend Car of the Year and 2005 European Car of the Year.  Toyota estimates sales of one million hybrid vehicles per year by 2012 and plan to offer all Toyota and Lexus models as hybrids.  General Motors, Ford, Daimler-Chrysler, Mercedes, and others are attempting to catch up with Toyota’s hybrid success.  Nearly all current HEVs use nickel-metal hydride batteries that contain about 22 pounds of nickel and 3 to 5 pounds of cobalt. Lithium-ion batteries containing 5 to 7 pounds of cobalt and little or no nickel are expected to dominate future HEV markets because they charge in minutes rather than hours and offer many other economic and technical advantages.  Global production of HEV’s in 2007 was about 400,000-500,000 units, and is estimated to increase to 8 million units by 2015(2), thereby increasing annual cobalt demand by nearly 22,000 tonnes/year.  In 2006, the world produced 69 million conventional cars and light trucks, and is expected to produce over 80 million units by 2015.

Cobalt Supply and Demand

The cobalt market is dynamic but small in comparison with other base metals. Consumers purchase cobalt through negotiated agreements, bids, and open markets from producers, traders and to a lesser degree, government stockpiles and private inventories. Approximately 62% of the world’s 2006 cobalt produced was a byproduct of nickel from sulfide and laterite deposits. An additional 35% was produced as a byproduct of copper operations, mainly in the Democratic Republic of the Congo (DRC) and Zambia.  The remaining 3% of cobalt production came from primary producers.

Several new projects are deemed to be sufficiently advanced and financed to produce significant quantities of cobalt in 2009-10 (mainly as a byproduct), including those listed below.  However, until that time cobalt demand is expected to significantly exceed production due to limited new production and the absence of stockpiles.  Additional projects may also come on stream in the intermediate term, however political and logistical issues in the DRC may endanger the viability of some of the larger projects.

Zimbabwe - Mining: Gold Mining

Zimbabwe position a major gold producer continues to slide as its once mainstay gold mining industry continues to decline as a result of political and social unrest. Zimbabwe produced 12 562,3 kg of gold in 2003, down from 2002's 15 468, 96 kg. Out of at least 500 hundred registered gold workings in Zimbabwe, several large scale mines exist in the central midlands region of Zimbabwe. Most of Zimbabwe’s larger gold mines have been based on previous smaller workings, therefore very few mines have been developed from grassroots level.

Zimbabwe's gold producers have been placed under a lot pressure, following a dramatic rise in operating costs over the last few years. These rises have been primarily due to Zimbabwe's restrictive foreign exchange laws as well as the artificial exchange rate between the Zimbabwe dollar and the US dollar. At the end of 2002 it was estimated that 45 significant gold mines (those producimng more than 10 oz/d) had closed. There was also been a wholesale withdrawal of small producers from the formal sector. About eight years ago there were over 1,000 such mines ('smallworkings') selling their gold, as required, to the Reserve Bank of Zimbabwe. By the end of 2002, there were only about 30, and while many of these tiny operations have closed, there has been a countrywide switch to black market sales.

AngloGols Ashanti operates the Freda Rebecca mine, the smallest mine in the Ashanti Group’s stable, but also Zimbabwe’s richest. Production from the mine in 2003 was 51,091 oz at a cash operating cost of US$268/oz compared with 98,255 oz at US$214/oz achieved in 2002. The decline in production was a result of low availability of drill rigs and drilled reserves occasioned by a challenging environment.The deposit is amenable to open pit mining and a feasibility study is underway.

Falcon Gold is one of Zimbabwe's oldest gold producers, with three surface and underground operations, viz ,Dalny, Golden Quarry and the Venice Mine. The continuing deterioration of the economy has forced Falcon Gold to close the Venice mine.

Anglo American opened the open cast Bubi mine, located 140km north of Bulawayo, in mid 1998. Annual production from Bubi is 16 000 oz as well as 19 000 oz the Isabella opencast operation. Bubi is a low grade deposit, averaging only 1g/ton from the oxide ore and less than 3g/ton from the more costly refractory sulphide ore.

Consolidated Trillion Resources is in the process of disinvesting its operational assets in Zimbabwe through the sale of its two gold mines in Zimbabwe, the Jena and Indarama Mine. The Jena mine is located in central Zimbabwe, approximately 270km from Harare. In 1999 the mine had total resources estimated at 1.7 Mt grading at 4.7 g/t or 7.8 t of gold and producing just over 15 000 oz gold in 1999. Trillion has sold its 50% share of the mine to its partner, the Zimbabwe Mineral Development Corporation (ZMDC) for $1.1 million.

Delta Gold has completed commissioning of the new Eureka mine, which has been a developed on top of previous workings. The mine is situated 150 km north of Harare in Zimbabwe. The mine has defined reserves of 438 000 oz gold and a total estimated resource of 1 Moz. The mine intends producing 60 000oz/year and at full production, Eureka will be the second largest gold producer in Zimbabwe. The mine is expected to have a life of mine of at least five years, based on current reserves and resources.

First Quantum Minerals operate the 95% owned Connemara heap leach open pit mine in central Zimbabwe. Connemara produced 21 500 oz gold in 1999 at a cash cost of $215 per oz, and has 7-8 years of reserves estimated at containing 3.2 Mt grading at 1.95 g/t or 199,407 oz gold.

Battlefield Minerals has developed its Pickstone – Peerless mine near Chigutu in Zimbabwe. The current resource has outlined 100 000 oz (opencast) at over 3g/t gold and almost 350 000 oz (underground) at 7.5g/t gold. A further 50 000 oz resource is located in tailings.

Kinross Gold operate the Blanket mine located in south western Zimbabwe, approximately 100km from Bulawayo. The mine is an underground mine with a tailings retreatment facility. Blanket produced approximately 34 500oz in 2000 at (rising) cash costs of $236/oz. The mine intends producing 47 000 oz gold in 2001 at cash costs of $200/oz. The mine has proven and probable reserves estimated at 2.8 Mt grading at 2.36 g/t gold.

Rio Tinto Zimbabwe (RTZ) is Zimbabwe's second largest gold producer, operating the Eiffel flats dump retreatment mine and the Patchway and Renco gold mines. Rio Tinto has a 56% interest in RTZ. RTZ accounts for 10% of Zimbabwe’s production.

Conquest Resources plans to acquire 90% of the Babs and Beehive gold mines, previously owned by British based African Gold PLC (Afgold) that sold the assets to eliminate long term debt in the UK and Zimbabwe. Apart from the Babs and Beehive acquisitions, Conquest also operates several other gold mines: Glencairn, Blue Rock and Shamrock mines. The Beehive complex consists of the Babs, Beehive, the small Antelope and the Eva open pit as well as a central milling and processing plant.

However, African Gold still operates the Inez Mine, situated west of Kadoma in central Zimbabwe. The Inez mine has reserves estimated at containing 645 000 t grading at 10.12 g/t, resulting in a total of 210 500 oz gold. Development of the Beehive complex was placed on standby due to reduced funding on the basis of Zimbabwe’s worsening political and economical situation. The Inez mine operations have been downscaled in the light of the economic downturn and the mine's production has been reduced to a mere 30 oz gold per week.

Independent Gold (Indepgold) is the Zimbabwe gold production arm of UK based Lonmin plc that operates 8 gold mines in Zimbabwe, viz. Arcturus, How, Anzac, Mazowe, Muriel, Redwing, Shamva and Tiger Reef mines which collectively produced 189 000 ounces in 2000, producing more than 20% of Zimbabwe’s gold output. Indep are also evaluating the Tafuna Hill region with Canadian Mandorin Goldfields. In order to focus on its South African assets, Lonmin has sold its gold interests to a South African empowerment company headed up by Mzi Khumalo.

In November 2002, Lonrho Mining (Lonmin) sold its remaining gold mines to Pemberton International Investments for US$15.5 million. The five mines in the group produce about 170,000 oz/y, or over a third of Zimbabwe�s official output. Pemberton is effectively controlled by tAfrican Mining Group of South Africa. Zimbabwe Mining Development Corp. also shut down its major gold producer, Sabi in 2002.

 

Major New Projects

Start Up Year


Country

Annual Prod.
Cobalt Tonnes

Katanga Mining

2010

DRC

10,000

Camec

2009

DRC

10,000

Tenke Fungurume

2010

DRC

8,000

Kolwezi Tailings

2009

DRC

5,000

Goro

2009

New Caledonia

4,500

Nkamouna

2010

Cameroon

4,100

Niquel de Vermelho

2010

Brazil

2,800

El Boleo              2010           Mexico                   1,500
Caldag

2009

Turkey

1,200

Total

n/a

 

47,100

Preliminary estimates for 2008 world demand are 64,000 tonnes, or an 8,000-tonne increase from 2006 demand.  On the supply side, the CDI estimates that 2007 cobalt production was unchanged from that of 2006, at nearly 54,000 tonnes, and  is unlikely to materially improve in 2008. 

Cobalt consumption in 1995 was only 24,000 tonnes, but grew to 57-58,000 tonnes in 2007, or a compound annual growth rate (CAGR) of 7.1% for the 12-year period.  In the chart below, actual world supply and demand data from external sources are used, whereas the projections from 2007 through 2015 are based on an 8% CAGR.  Production from existing projects after 2006 are expected to be reduced by 1,000 tonnes/year, mainly due to declining production from artisanal miners, smugglers in the DRC (approx. 8,000 tpy), and depletion of reserves at existing operations.  In summary, the chart strongly suggests that the market will accommodate production from many new and expansion projects.

Global cobalt consumption by country and the increase for the four-year period ending 2006 is shown below(4).

Tonnes Cobalt


Country

2002

2006e

% Change

Europe

11,100

13,730

24

Japan

7,250

12,300

70

China

4,300

11,000

156

USA

9,250

11,450

24

Other

5,200

7,520

45

Total

37,100

56,000

51

The table below shows approximate production of refined cobalt and reserves and resources by country.

Refined Cobalt Production in 2006 & Reserves(4).

Country

Tonnes Refined

Tonnes x 1000
Reserves

Tonnes x 1000
Reserve Base*

Australia

3,996

1,400

1,700

Belgium

2,840

0

0

Brazil

902

29

40

Canada

5,023

120

350

China

12,700

72

470

Congo - Dem. Rep.

550

3,400

4,700

Cuba

0

1,000

1,800

Finland

8,580

0

0

India

1,184

0

0

Japan

920

0

0

Morocco

1,405

20

n/a

New Caledonia

1,100

230

860

Norway

4,927

0

0

Russia

4,759

250

350

United States

0

n/a

860

Zambia

4,665

270

680

Other

1,482

130

2,000

Total

53,933

7,000

13,000

*includes reserves plus measured and indicated resources

There are no published statistics on world use of cobalt scrap, but the USGS estimates 2006 U.S. scrap consumption was about 25% of reported US consumption.

Prices
Cobalt prices fluctuate significantly in response to world events, such as the September 11, 2001 terrorist attacks that reduced orders for jet engines, labor and political unrest, and changes to supply and demand.  Although there is no exchange market for cobalt like the LME or COMEX, prices are set for cobalt metal through sources such as Platt’s Metal Week, Metal Bulletin, Metal Pages, and BHP Billiton’s Cobalt Open Sales Systems.  Prices of cobalt compounds such as oxides, hydroxides, and acetates are less transparent and are limited to published producer’s prices that are often left unchanged for long periods.
The 20-year and 3-year average prices per pound of 99.8% cathode cobalt as of October 2007 were $16.00 and $20.08, respectively. 

 

 

 

 

 

 

Cobalt is a hard, lustrous, silver-grey metal, a chemical element with symbol Co and the atomic number 27. It is found in various ores, and is used in the preparation of magnetic, wear-resistant, and high-strength alloys. Pure cobalt is not found in nature, but compounds of cobalt occur naturally in many forms. Small amounts of it are found in most rocks, soil, water, plants, and animals. Cobalt is usually not mined alone, and tends to be produced as a by-product of nickel and copper mining activities. The main ores of cobalt are cobaltite, erythrite, glaucodot, and skutterudite.
Principal cobalt producing countries include Democratic Republic of the Congo, Zambia, Canada, Cuba, Australia, and Russia. The identified cobalt resources in the world total about 15 million tons. The United States uses about one-third of total world consumption.
It belongs to a group of elements called transition metals. It has magnetic properties like iron. Cobalt is one of the elements that is very important to life, including human life and health. In areas where there is little cobalt in the soil, farmers have to provide salt blocks containing cobalt for their animals to lick in order to provide enough cobalt in their diet.
Cobalt has many diverse applications, including rechargeable batteries for cell phones, computers, and hybrid electric vehicles, super-alloys for jet engines, chemicals, wear resistant alloys, catalysts, and magnets.   Global cobalt demand in 2007 was 59,900 tonnes compared to 31,000 tonnes in 1997, and in early 2008 cobalt prices briefly exceeded their all-time high of more than $50/lb.

Cobalt uses

Cobalt-60 is used for sterilization of medical supplies, and medical waste; radiation treatment of foods for sterilization; industrial radiography; density measurements; and tank fill height switches.
It is also used to help paint dry quickly. Cobalt is also used to make artificial body parts such as hip and knee joints. Cobalt carbonate is used in ceramics and as an animal feed supplement in trace amounts. Cobalt chloride is used as a humidity and water indicator, in electroplating, in the manufacture of vitamin B-12, as a fertilizer and feed additive in trace amounts. Cobalt oxide is used in pigments for ceramics and glass, in fast drying paints and varnishes, in semiconductors, in enamel coatings on steel, and again as an animal feed additive in trace amounts. Cobalt sulphate is used in electroplating, in batteries, as a drying agent in inks and varnishes, in enamels, and ceramics, and as a feed and fertilizer additive

 

 
 

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