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)
|
|
% 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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