ORGANIGRAMA DE MANTENIMIENTO MINA CHACHAUATA

DirectorMantenimiento

Palas Camiones EquipoAuxiliar

Mecánicos (4) Electricos (4) Mecánicos (6) Electricistas (2) Mecánicos (2)

Planeación y Programación Secretaria

ORGANIGRAMA DE MANTENIMIENTO MINA CHACHAUATA

TOTAL 3

TOTAL 6

TOTAL 19

EquipoAuxiliar

Mecánicos (2) Electricos (1)

Datos de operaciónConsumo combustible Costos COP$Pala Eléctrica 2800 KW/H Hora Hombre $ 40,000Pala Hidráulica 8 gl/h Combustible $ 4,200 GLNCamión 10 km/gl KW/H $ 450D9L 5 gl/h Aceite $ 17,000 GLN

Filtros D9L $ 250,000 eaFiltros Pala Hca $ 450,000 ea

Cambio aceite Capacidad Filtros camión $ 220,000 eaReductor 50 gln Repuestos Pala Electrica $ 281,250,000 añoPala Hca 60 gln Repuestos Pala Hca $ 37,500,000 añoCamión 42 gln Repuestos camiones $ 1,575,000,000 añoD9L 35 gln Repuestos D9L $ 306,250,000 año

300 dias de trabajo al año

Mina de cobre ChachauataVida del proyecto 25 añosValor ton $ 87,500 COPHoras trabajo día 18Producción de Cobre# palas Hidráulicas 2# camionesVel promedio camión 40 Km/hrCiclo pala 5 minutosCiclo camión 5.25 minutos

Producción de Esteril# palas 5Ciclo Pala 2.5 minutosCapacidad camion 60 TonDistancia promedio Botadero 5 KmCiclo camión 6.00

MTTR λ (Rata Fallas)Hrs Anual

CobrePala Hidráulica 12 50Camión 8 75Tractor (D9L) 6 150EsterilPala Eléctrica 24 36Camión 8 100

Mina de cobre ChachauataValor activo

Valor US$ Valor Col $Pala Eléctrica 1,500,000 3,750,000,000Pala Hca 300,000 750,000,000Camión 600,000 1,500,000,000Tractor D9L 500,000 1,250,000,000Edificio 500,000 1,250,000,000

Mina de cobre ChachauataVida del proyecto 25 añosValor ton $ 87.500 M COPHoras trabajo día 18

Cobre# palas 2 eaCapacidad Pala 2 tonsCiclo pala 5 minutos #Ciclos pala día 216Ciclo camión 5.25 minutos Cap.maxima por pala día

Esteril# palas 5 ea #Ciclos pala día 432Capacidad Pala 20 Tons Cap.maxima por pala díaCiclo pala 2.5 minutosCiclo camión 6.00 minutos

CamionesCapacidad camion 60

Cobre Esteril Total camiones necesarios# Ciclos camion cobre 432 2160# ciclos por camión 205.714285714286 180# Camiones 2.1 12 14.1

Ton día Dias añoProducción máxima dia Cobre 25,920 300

Esteril 129,600Real esteril VS Cobr 129,600

CostoHora Hombre $ 40 Mil COPCombustible $ 3,500 GLN

Producción hora por pala hca 720 TonValor prod hora por pala hca $ 63,000 MCOP

Tiempo maximo posible 5,400Tiempo planeado por mantenimien 103.68

Mina de cobre ChachauataValor activo vlr TOTAL

Valor US$ Valor Col $ CANTPala Eléctrica 1,500,000 3,750,000,000 5 18,750,000,000

Cobre Pala Hca 300,000 750,000,000 2 1,500,000,000Camión 600,000 1,500,000,000 30 45,000,000,000Tractor D9L 500,000 1,250,000,000 7 8,750,000,000Edificio 500,000 1,250,000,000 1 1,250,000,000

12,960 8,500,000,000 75,250,000,000Esteril

25,920

Camiones

Valor total activo

Máximaproducción annual

7,776,000 tons$ 680,400 MM COP

Matriz de Mantenimiento actual

Sistema Clase Categoría Criticidad Mantenimiento preventivo Frecuencia (Meses)Pala Eléctrica Alto Voltaje 13.2 Alta Inspección 6

Termografía 6Bajo voltaje 400 Alta Termografía 12Reductores Piñón Baja Cambio Aceite 250 hrsSistema mecánico Varios Baja Inspección 6

Pala Hidráulica Pala Hidráulica 2 ton Alta Inspección DiariaCambio Aceite 250 hrs

Camión Camión 60 Ton Media Cambio Aceite 250 hrsTractor D9L Tractor D9L Cat D9L Baja Cambio Aceite 250 hrsEdificio Edificio Varios Alta Inspección 1

Total

Horas ParadaCantidad # Eventos año PM CM Dispon M. Obra(M$) Repuestos Aceite Combustible

5 10 240 4320 83.11% 547,200 281,2505 105 55 10.8 9,180 28,274,4005 102 6002 4.32 51.84 1200 88.41% 100,147 37,500 4,406 320,818

30 64.8 518.4 18000 88.57% 1,481,472 1,575,000 46,267 2,410,4917 15.12 90.72 6300 83.09% 511,258 306,250 8,996 659,5951 12

2,640,077 2,200,000 68,850 31,665,304

Costos mantoOperación828,450

00

9,180 900,00000

142,054 360000 180,0003,102,739 5,400,000

826,504 1,260,000

4,908,927 7,920,000

Attachment 7

For ABB internal use onlySTRICTLY CONFIDENTIAL

Page 11 of 27 Services RRC, Attachment 7, 07.29.03

CALCULO DE COSTOS DE MANTENIMIENTO PRESUPUESTOEMPRESA Chichicauata Valor %

Período Año 2007 en 1000 $ del prsupuesto

Fecha:

GASTOS DE PERSONAL

Costos directosSalario BeneficiosSub-totalCostos indirectos

Parafiscales

Cargos por Otros beneficiosSub-total 2,640,077

Total Gastos Personal 2,640,077 -51.4

Materiales y Repuestos

Materiales

Repuestos 2,200,000

Consumibles 68,850

Cargos por costos de manejo de materialesTotal Materiales y repuestos 2,268,850 -44.2

Gastos directos de ServiciosEquipos y HerramientasAlquiler (Compra) de equiposAlquiler (Compra) de Herramientas

Sub-total 0

Ingeniería, Entrenamiento y Software Prod/MaintCargos Internos Compras y/o serviciosSub-total 0

Otros Servicios/Sistemas contratadosInternosExternos

Sub-total 0

Total Gastos Directos de Servicios 2,268,850 -44.2

GASTOS INDIRECTOSGastos de InfraestructuraArriendosHerramienta especial, Instrumentación y Equipo Mobil Transporte / Vehiculos Oficinas / Suministros de Computo, Hardware y Software Comunicaciones y Equipos Salud, Seguridad, Calidad y Medio Ambiente Administrativos, Legales y servicios de Seguridad (Security)Sub-total 0

Otros Gastos Viajes y Recreación Contratación, Entrenamiento y Retención Despidos sin justa causa Sub-total 0

Total Gastos Indirectos 0

PROYECTOS Y/O MODIFICACIONESOTROS COSTOS ESPECIALESCostos establecidos por la Empresa, Impuestos y segurosGarantías de equipos comprados y serviciosFinanciamientos especiales, utilidades por bonos, creditos & riesgo segurosCostos de intereses Otros

Total de otros costos especiales 0

Contingencias 226,885 -4.4

Provisiones por riesgos identificadosProvisiones totales 226,885 -4.4

TOTAL COSTOS DE SERVICIOS 5,135,812 -100.0

RESULTADO NETO 5,135,812 -100.0

Cantidad de personalPersonal directo 19Personal Indirecto 9Total Personal 28

Costo del ciclo de vida de la Pala HidráulicaLife Cycle Cost Worksheet <--Yellow Boxes Are For Data Input

Discount Rate (%)--> 0% Project Life (25 yrs )--> 25 Tax Provision (%)-->-$24,779,673 <--Net Present Value <--Internal Rate Of Return

Capital Costs: 0 1 2 3 Capital Acquisition Costs $3,750,000

Acquisition Costs: Program Management Costs $0 Engineering Design Costs $0 Engineering Data Costs $0 Spare Parts & Logistics Costs $37,500 $37,500 $37,500 $37,500 Facilities & Construction Costs

Initial Training Costs $60 Technical Data Costs

Documentation Costs

Mayor repairment costs $2,250,000 Annual recuring costs (Maintenance) $142,054 $142,054 $142,054 Other periodic costs( Combustible) $320,818 $320,818 $320,818 Operating Costs $180,000 $180,000 $180,000 Comsecuences Costs

Disposal Costs

Savings: Annual Savings (use positive #s)

NPV & IRR Calculations: 0 1 2 3Capital equipment $3,750,000Costs $37,560 $680,372 $680,372 $2,930,372Savings $0 $0 $0Straight Line Depreciation $150,000 $150,000 $150,000Profit Before Taxes -$37,560 -$830,372 -$830,372 -$3,080,372Tax Provision @ 38% Of Profit Before Tax $14,273 $315,541 $315,541 $1,170,541Net Income can be profit or loss -$23,287 -$514,831 -$514,831 -$1,909,831Add Back Depreciation $150,000 $150,000 $150,000Cash Flow (Net Income + Depreciation) -$3,773,287 -$364,831 -$364,831 -$1,759,831Discount Factors @ 0% 1.0000 1.0000 1.0000 1.0000Present Value -$3,773,287 -$364,831 -$364,831 -$1,759,831Net Present Value -$24,779,673 Este es el costo del ciclo de vida de la Pala por los 25 años del proyecto Internal Rate Return <--Requires at least one positive and one negative number in the present value row 32

Años reemplazoEAC 3 -$ 1,204,593

6 -$ 1,045,7129 -$ 966,918

12 -$ 985,64615 -$ 965,88318 -$ 952,70821 -$ 965,43925 -$ 991,187

<--Yellow Boxes Are For Data Input Costos en Miles COP$Tax Provision (%)--> 38%

<--Internal Rate Of Return 25 años

4 5 6 7 8 9 10 11

$37,500 $37,500 $37,500 $37,500 $37,500 $37,500 $37,500 $37,500

$2,250,000 $3,000,000$142,054 $142,054 $142,054 $142,054 $142,054 $142,054 $142,054 $142,054$320,818 $320,818 $320,818 $320,818 $320,818 $320,818 $320,818 $320,818$180,000 $180,000 $180,000 $180,000 $180,000 $180,000 $180,000 $180,000

$22,680

4 5 6 7 8 9 10 11

$680,372 $680,372 $2,930,372 $680,372 $680,372 $3,703,052 $680,372 $680,372$0 $0 $0 $0 $0 $0 $0 $0

$150,000 $150,000 $150,000 $150,000 $150,000 $150,000 $150,000 $150,000-$830,372 -$830,372 -$3,080,372 -$830,372 -$830,372 -$3,853,052 -$830,372 -$830,372$315,541 $315,541 $1,170,541 $315,541 $315,541 $1,464,160 $315,541 $315,541

-$514,831 -$514,831 -$1,909,831 -$514,831 -$514,831 -$2,388,892 -$514,831 -$514,831$150,000 $150,000 $150,000 $150,000 $150,000 $150,000 $150,000 $150,000

-$364,831 -$364,831 -$1,759,831 -$364,831 -$364,831 -$2,238,892 -$364,831 -$364,8311.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000

-$364,831 -$364,831 -$1,759,831 -$364,831 -$364,831 -$2,238,892 -$364,831 -$364,831Este es el costo del ciclo de vida de la Pala por los 25 años del proyecto <--Requires at least one positive and one negative number in the present value row 32

12 13 14 15 16 17 18 19

$37,500 $37,500 $37,500 $37,500 $37,500 $37,500 $37,500 $37,500

$2,250,000 $2,250,000 $3,000,000$142,054 $142,054 $142,054 $142,054 $142,054 $142,054 $142,054 $142,054$320,818 $320,818 $320,818 $320,818 $320,818 $320,818 $320,818 $320,818$180,000 $180,000 $180,000 $180,000 $180,000 $180,000 $180,000 $180,000

$22,680

12 13 14 15 16 17 18 19

$2,930,372 $680,372 $680,372 $2,930,372 $680,372 $680,372 $3,703,052 $680,372$0 $0 $0 $0 $0 $0 $0 $0

$150,000 $150,000 $150,000 $150,000 $150,000 $150,000 $150,000 $150,000-$3,080,372 -$830,372 -$830,372 -$3,080,372 -$830,372 -$830,372 -$3,853,052 -$830,372$1,170,541 $315,541 $315,541 $1,170,541 $315,541 $315,541 $1,464,160 $315,541

-$1,909,831 -$514,831 -$514,831 -$1,909,831 -$514,831 -$514,831 -$2,388,892 -$514,831$150,000 $150,000 $150,000 $150,000 $150,000 $150,000 $150,000 $150,000

-$1,759,831 -$364,831 -$364,831 -$1,759,831 -$364,831 -$364,831 -$2,238,892 -$364,8311.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000

-$1,759,831 -$364,831 -$364,831 -$1,759,831 -$364,831 -$364,831 -$2,238,892 -$364,831

20 21 22 23 24 25

$37,500 $37,500 $37,500 $37,500 $37,500 $37,500

$2,250,000 $2,250,000$142,054 $142,054 $142,054 $142,054 $142,054 $142,054$320,818 $320,818 $320,818 $320,818 $320,818 $320,818$180,000 $180,000 $180,000 $180,000 $180,000 $180,000

-$375,000

20 21 22 23 24 25

$680,372 $2,930,372 $680,372 $680,372 $2,930,372 $305,372$0 $0 $0 $0 $0 $0

$150,000 $150,000 $150,000 $150,000 $150,000 $150,000-$830,372 -$3,080,372 -$830,372 -$830,372 -$3,080,372 -$455,372$315,541 $1,170,541 $315,541 $315,541 $1,170,541 $173,041

-$514,831 -$1,909,831 -$514,831 -$514,831 -$1,909,831 -$282,331$150,000 $150,000 $150,000 $150,000 $150,000 $150,000

-$364,831 -$1,759,831 -$364,831 -$364,831 -$1,759,831 -$132,3311.0000 1.0000 1.0000 1.0000 1.0000 1.0000

-$364,831 -$1,759,831 -$364,831 -$364,831 -$1,759,831 -$132,331

$3,750,000

Costo del ciclo de vida de la Pala HidráulicaLife Cycle Cost Worksheet <--Yellow Boxes Are For Data Input

Discount Rate (%)--> 0% Project Life (25 yrs )--> 21 Tax Provision (%)-->-$21,669,228 <--Net Present Value <--Internal Rate Of Return

Capital Costs: 0 1 2 3 Capital Acquisition Costs $3,750,000

Acquisition Costs: Program Management Costs $0 Engineering Design Costs $0 Engineering Data Costs $0 Spare Parts & Logistics Costs $37,500 $37,500 $37,500 $37,500 Facilities & Construction Costs

Initial Training Costs $60 Technical Data Costs

Documentation Costs

Mayor repairment costs $2,250,000 Annual recuring costs (Maintenance) $142,054 $142,054 $142,054 Other periodic costs( Combustible) $320,818 $320,818 $320,818 Operating Costs $180,000 $180,000 $180,000 Disposal Costs

Savings: Annual Savings (use positive #s)

NPV & IRR Calculations: 0 1 2 3Capital equipment $3,750,000Costs $37,560 $680,372 $680,372 $2,930,372Savings $0 $0 $0Straight Line Depreciation $178,571 $178,571 $178,571Profit Before Taxes -$37,560 -$858,943 -$858,943 -$3,108,943Tax Provision @ 38% Of Profit Before Tax $14,273 $326,398 $326,398 $1,181,398Net Income can be profit or loss -$23,287 -$532,545 -$532,545 -$1,927,545Add Back Depreciation $178,571 $178,571 $178,571Cash Flow (Net Income + Depreciation) -$3,773,287 -$353,973 -$353,973 -$1,748,973Discount Factors @ 0% 1.0000 1.0000 1.0000 1.0000Present Value -$3,773,287 -$353,973 -$353,973 -$1,748,973Net Present Value -$21,669,228 Este es el costo del ciclo de vida de la Pala por 8 años con reemplazo cada 9 añosInternal Rate Return <--Requires at least one positive and one negative number in the present value row 32

EAC -1,031,867.99

<--Yellow Boxes Are For Data Input Costos en Miles COP$Tax Provision (%)--> 38%

<--Internal Rate Of Return 8 años

4 5 6 7 8 9 10

$37,500 $37,500 $37,500 $37,500 $37,500 $37,500 $37,500

$2,250,000 $3,000,000$142,054 $142,054 $142,054 $142,054 $142,054 $142,054 $142,054$320,818 $320,818 $320,818 $320,818 $320,818 $320,818 $320,818$180,000 $180,000 $180,000 $180,000 $180,000 $180,000 $180,000

4 5 6 7 8 9 10

$680,372 $680,372 $2,930,372 $680,372 $680,372 $3,680,372 $680,372$0 $0 $0 $0 $0 $0 $0

$178,571 $178,571 $178,571 $178,571 $178,571 $178,571 $178,571-$858,943 -$858,943 -$3,108,943 -$858,943 -$858,943 -$3,858,943 -$858,943$326,398 $326,398 $1,181,398 $326,398 $326,398 $1,466,398 $326,398

-$532,545 -$532,545 -$1,927,545 -$532,545 -$532,545 -$2,392,545 -$532,545$178,571 $178,571 $178,571 $178,571 $178,571 $178,571 $178,571

-$353,973 -$353,973 -$1,748,973 -$353,973 -$353,973 -$2,213,973 -$353,9731.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000

-$353,973 -$353,973 -$1,748,973 -$353,973 -$353,973 -$2,213,973 -$353,973Este es el costo del ciclo de vida de la Pala por 8 años con reemplazo cada 9 años <--Requires at least one positive and one negative number in the present value row 32

11 12 13 14 15 16 17

$37,500 $37,500 $37,500 $37,500 $37,500 $37,500 $37,500

$2,250,000 $2,250,000$142,054 $142,054 $142,054 $142,054 $142,054 $142,054 $142,054$320,818 $320,818 $320,818 $320,818 $320,818 $320,818 $320,818$180,000 $180,000 $180,000 $180,000 $180,000 $180,000 $180,000

11 12 13 14 15 16 17

$680,372 $2,930,372 $680,372 $680,372 $2,930,372 $680,372 $680,372$0 $0 $0 $0 $0 $0 $0

$178,571 $178,571 $178,571 $178,571 $178,571 $178,571 $178,571-$858,943 -$3,108,943 -$858,943 -$858,943 -$3,108,943 -$858,943 -$858,943$326,398 $1,181,398 $326,398 $326,398 $1,181,398 $326,398 $326,398

-$532,545 -$1,927,545 -$532,545 -$532,545 -$1,927,545 -$532,545 -$532,545$178,571 $178,571 $178,571 $178,571 $178,571 $178,571 $178,571

-$353,973 -$1,748,973 -$353,973 -$353,973 -$1,748,973 -$353,973 -$353,9731.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000

-$353,973 -$1,748,973 -$353,973 -$353,973 -$1,748,973 -$353,973 -$353,973

18 19 20 21

$37,500 $37,500 $37,500 $37,500 $37,500 $37,500 $37,500

$3,000,000 $2,250,000$142,054 $142,054 $142,054 $142,054 $142,054 $142,054 $142,054$320,818 $320,818 $320,818 $320,818 $320,818 $320,818 $320,818$180,000 $180,000 $180,000 $180,000 $180,000 $180,000 $180,000

-$375,000

18 19 20 21

$3,680,372 $680,372 $680,372 $2,555,372$0 $0 $0 $0

$178,571 $178,571 $178,571 $178,571-$3,858,943 -$858,943 -$858,943 -$2,733,943$1,466,398 $326,398 $326,398 $1,038,898

-$2,392,545 -$532,545 -$532,545 -$1,695,045$178,571 $178,571 $178,571 $178,571

-$2,213,973 -$353,973 -$353,973 -$1,516,4731.0000 1.0000 1.0000 1.0000

-$2,213,973 -$353,973 -$353,973 -$1,516,473

25

$37,500

$142,054$320,818$180,000

3 6 9 12 15 18 21 25

-$ 1,300,000

-$ 1,250,000

-$ 1,200,000

-$ 1,150,000

-$ 1,100,000

-$ 1,050,000

-$ 1,000,000

-$ 950,000

-$ 900,000

Costo anual equivalente

Años

Relación entre OEE y Retorno del Capital empleado5,296

Max prod / h Valores en MM de COP$

1,440 7,626,701

Disponibilidad OEE Prod real /Anual UBruta / annual

88.4% 70.7% 5,394,145 471,988

Eficiencia Precio / Unit U.Bruta / Unit Utilidad

80.0% 0.088 0.088 466,539

Calidad Costo / Unit Facturación Margen de Utilidad

100.0% 0.000 4,909 5,449 471,988 98.85%

Depreciacion Activos fijos Facturación

340 75,250 471,988 4.11

Otros costos fijos

200 39,585 114,835

Tiempo planeado

Prod Teórica /annual

Costo Directo Mantenimiento

Costos fijos/ Annual

Rotación del Capital Empleado

Costos operación

Capital Empleado

Valores en MM de COP$

ROCE

406.27%