Organic Growth Project 1 (OGP1)Head of Project

Minera Escondida Limitada

Abril 2012

Secuencia Minera

Crusher # 5

Crusher # 3

Crusher # 2

Escondida North

Escondida

LS Conc. 142.500 tpd

OGP1 Conc. 152.000 tpd

Shuttle/transfer point

Ore Been

CV103CV102

CV104

CV2C

9.600 tph (existent)

12.550 tph (OGP1)

8.800 tph (existent - relocated)

Stockpile OGP1 146.000 ton live

Stockpile LS 110.000 ton live

Sistema de Correas y Chancados

Crusher # 1

OGP1 Alcance

Red - OGP1Yellow - LSDBlue - Laguna Seca

8 Alimentadores1.500 tph

Nuevo Stock pile OGP1

Circuito Molienda

rea de Molienda

1 Molino SAG 40x2624 MW

4 Molinos de Bolas26x41.5

15.7 MW

Pebbles Circuit

Pebble Plant2 MP 1000

OGP1 - DPS Slide 8

Circuito de Flotacin

3 Rows21 Scavenger Cells300 m3

Flotation Circuit

7 Rows49 Rougher Cells300 m3

3 Molinos Verticales3.000 hp

rea de Remolienda

12 celdas Columnares de 4.5m de dimetro

2 distribuidores

rea Segunda Limpieza

Espesadores de Relaves

OGP1 - DPSSlide 13

3 Thickeners(125 m diameter)

Back

Almacenamineto y Espesadores de Concnetrado

New 2 Concentrate ThickenersDiameter 42.5 m

New 1 ClarifierDiameter 35 m

New 4 Holding TanksDiameter 15 m

New 3 Positive Displacement Pumps

Slide 14