ANGLO AMERICAN PLC - Anglo American announces a 19% increase to mineral resources and ore reserves at Collahuasi

Anglo American announces a 19% increase to mineral resources and ore reserves at Collahuasi

Anglo American plc (“the Company”)
Incorporated in the United Kingdom
(Registration number: 3564138)
Short name: Anglo
Share code: AGL
ISIN number: GB00B1XZS820

7 February 2013


Anglo American announces a 19% increase to mineral resources and ore reserves at
Collahuasi

Anglo American plc draws attention to the announcement made by Collahuasi, its 44% owned
copper mine in Chile. The translated text of that announcement is included below.

Compañía Minera Doña Inés de Collahuasi SCM announces a significant increase to its
Mineral Resources and Ore Reserves following its 2012 resources estimation process.

The new Measured, Indicated and Inferred Resource has increased by 1.4 billion tonnes to
over 9.0 billion tonnes at an average grade of 0.81% copper and 0.02% of molybdenum. This
represents a 19% increase on the previous estimate published in December 2011. Total
contained copper metal has increased by 23% to around 73 million tonnes.

Ore Reserves have increased by 10% compared to the previous year, up 292 million tonnes to
a total of 3.2 billion tonnes at an average grade of 0.81% copper. This new estimate is the
result of new drill results, geological modelling updates, mining design optimization and
adjustments to metal price assumptions.

Collahuasi Chief Executive Officer, Jorge Gomez, said: “This impressive uplift in our mineral
resource base at Collahuasi clearly indicates the significant potential for further expansion at
Collahuasi. We continue to work on bringing increased stability to our processes through
operational improvements to ensure we can capitalize on this world-class resource.”

Collahuasi’s Resources and Reserves* as of December 31, 2012
 
  MINERAL RESOURCES:         MTON               %TCu                        Copper Content
  OXIDES + MIXED                                                            (Mton)
  MEASURED + INDICATED       45                 0.62                        0.3
  INFERRED                   11                 0.56                        0.1
  TOTAL                      56                 0.61                        0.4


 MINERAL RESOURCES:          MTON                 %TCu         % Mo       Copper Content
 SULPHIDES                                                                  (Mton)
 MEASURED + INDICATED        4,570                0.83         0.02       38.0
 INFERRED                    4,450                0.80         0.02       35.6
 TOTAL                       9,020                0.81         0.02       73.0


 ORE RESERVES: OXIDES        MTON                 %TCu           Copper Content
 + MIXED                                                               (Mton)     
 PROVED                       31                  0.59            0.2
 PROBABLE                     13                  0.70            0.1
 TOTAL                        44                  0.62            0.3


 ORE RESERVES:                MTON                               %TCu            % Mo         Copper Content
 SULPHIDES                                                                                    (Mton)
 PROVED                       419                                1.00            0.02         4.2
 PROBABLE                     2,724                              0.79            0.02         21.5
 TOTAL                        3,143                              0.81            0.02         25.7

Ore Reserves included in Mineral Resources
 
*Competent persons:      Mr. Mario Quiñones V. and Mr. Luis Aedo S., who are full time
Collahuasi employees, are responsible for the Quality of exploration data used as the basis for
Collahuasi’s Resource estimates, of the geological interpretations that constrain the Resource
estimates and the transformation of the Resources into Reserves. Both are Competent
Persons under the meaning of the 2004 JORC Code. Numbers may not be exact as they have
been rounded for tabulation.

Notes to editors:

Compañía Minera Doña Inés de Collahuasi SCM is located in the Región of Tarapacá, Chile, and produced 284,000
tonnes of fine copper in 2012. Its shareholders are Xstrata Plc 44%, Anglo American Plc 44% and a Japanese
consortium headed by Mitsui. Collahuasi provides direct and indirect employment to more than 7,000 people.
www.collahuasi.cl


Anglo American is one of the world’s largest mining companies, is headquartered in the UK and listed on the London
and Johannesburg stock exchanges. Anglo American’s portfolio of mining businesses spans bulk commodities – iron
ore and manganese, metallurgical coal and thermal coal; base metals – copper and nickel; and precious metals and
minerals – in which it is a global leader in both platinum and diamonds. Anglo American is committed to the highest
standards of safety and responsibility across all its businesses and geographies and to making a sustainable difference
in the development of the communities around its operations. The company’s mining operations, extensive pipeline of
growth projects and exploration activities span southern Africa, South America, Australia, North America, Asia and
Europe.
www.angloamerican.com

For further information, please contact:

Media                                                                   Investors
UK                                                                      UK
James Wyatt-Tilby                                                       Leng Lau
Tel: +44 (0)20 7968 8759                                                Tel: +44 (0)20 7968 8540

Emily Blyth                                                             Caroline Crampton
Tel: +44 (0)20 7968 8481                                                Tel: +44 (0)20 7968 2192

South Africa                                                            Sarah McNally
Pranill Ramchander                                                      Tel: +44 (0)20 7968 8747
Tel: +27 (0)11 638 2592


Sponsor: UBS South Africa (Pty) Ltd

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