Santiago June 5 09

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Riskope International SA © 2009     www.riskope.com

1

Mining operations face many hazards.

By quantifying risks we can better allocate mitigative funds in a clear and transparent way,  evaluate projects, make better decisions. Riskope International SA © 2009     www.riskope.com

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Riskope International SA © 2009     www.riskope.com

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Riskope International SA © 2009     www.riskope.com

5

Examples of tolerability curves.

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Downside risks can be Green=tolerable Yellow=attention Red=intolerable compared to Tolerability Curves Probability of Occurence

Green=tolerable

Yellow=attention

5

1

Red=intolerable

87

0.1 0.01

0.02

0.001 0.0001 0.00001

0.001

143

50

0.000001 0.01

0.1

1

10

100

Riskope International SA © 2009     Cost of Consequences (in MUS$) www.riskope.com

1000

7

Riskope International SA © 2009     www.riskope.com

8

This is a list of hazards the client’s Risk Manager  identified.  For confidentiality reasons, we cannot  disclose their exact names.  Imagine, fires, explosions, transportation mishaps, etc. WPI SMMF CFoTD FB PC GMPoE RE

TSF BC FiSEO C&PLS FitCD E PWF

Riskope International SA © 2009     www.riskope.com

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Riskope International SA © 2009     www.riskope.com

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Riskope International SA © 2009     www.riskope.com

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Bar graph for the Intolerable portion of the scenarios

* A mathematical model is used  

Of the 14 initial scenarios, seven are above tolerability,  but only three are top attention priority. Riskope International SA © 2009     www.riskope.com

12

Scenarios will be prioritized  by their intolerable part of risk.  Thus a clear road­map becomes available. Transparent decision can be taken  leading to a rational and sustainable  RM/ERM. Riskope International SA © 2009     www.riskope.com

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Riskope International SA © 2009     www.riskope.com

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Terrorism risks are dealt in the same manner.  (the hazard already exist but the probability changes  because of terrorism!)

Riskope International SA © 2009     www.riskope.com

15

3 phases and a total of five steps  in the life of a project/alternative:

Design/Implementation/Construction Infrastructure (setting the bases…) Superstructure (implementing…) Life/Service Service (using, developing, …) Maintenance (repairing, adapting…) Disposal/demolition (ending, releasing…)

Each step has its own hazards and related risks… Riskope International SA © 2009     www.riskope.com

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There are many parameters to a “good” decision • Expected returns and effects…are abundant • Feasibility…is proven • Sustainability…is accomplished • Scalability…is well graded • Redundancy…is sufficient • Reclaim/disposing…is easy and economic

Generally a decision will require a  compromise among them Riskope International SA © 2009     www.riskope.com

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Each parameter contributes to the risks of an alternative from cradle to grave.

Riskope International SA © 2009     www.riskope.com

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Riskope International SA © 2009     www.riskope.com

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Case Study  Long term pumping  v.s. encapsulation  of a very large leaching  underground toxic waste storage.

Riskope International SA © 2009     www.riskope.com

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The “financial parameters” and risks linked to maintaining the  Status Quo can be summarized as follows (in Million $, noted  M):

 There is p=90% that a 5M capital investment will be  necessary on the treatment plant (ONLY at START)  The energy cost (diesel for the power plant) has a yearly  chance of p=30%  to multiply by two the current pumping costs  (C=2*3.6M/yr)  Because of climate changes there is a yearly chance of  p=15%  that the cost of pumping may triple (C= 3*3.6M/yr). The data of the alternative Status Quo are displayed in the next  slide, directly taken from the screen of the CDA application.

Riskope International SA © 2009     www.riskope.com

21

Case title Life duration(Years) Construction budget

Status Quo

Copyright Riskope International SA, 2004­* www.riskope.com

40 8.5

Email: [email protected] [email protected] Skype: droboni  or cesar.oboni

Construction analysis cost risk

min Construction Environmental Soundness

max

average stdev Prob/year

3

4

3.6

0.13

4.5

5.5

5

0.17

90.00%

Usable life analysis cost

min Running Costs

max 3

average stdev 4

3.6

0.13

External risks analysis proper to the alternative min

max

average stdev Prob/year

Energy Price

6

8

7.2

0.27

30.00%

Climate Changes

9

12

10.8

0.4

15.00%

Riskope International SA © 2009     www.riskope.com

22

The “financial parameters” and risks linked to building and  maintaining the Rehabilitation can be summarized as follows  (in Million $, noted M):

 There is a probability of 10 % that after spending the initial  120M another 120M is necessary to finish the project.  The energy cost (diesel for the power plant) has a yearly  chance of p=30%  to multiply by two the current pumping costs  (C=2*0.3M/yr).  Because of climate changes the is a yearly chance of p=5%   that the cost of pumping may become “normal” (i.e. The  encaptulation is not working) (C= 3.6M/yr)  The data of the alternative Rehabilitation are displayed in Figure 6,  directly taken from the screen of the CDA application we are using.  Riskope International SA © 2009     www.riskope.com

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Case title

Rehabilitation

Copyright Riskope International SA, 2004­* www.riskope.com

Life duration(Years) Construction budget

40 120

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Construction analysis cost risk

min

max

average

stdev

Construction

80

110

100

3.33

Environmental Soundness

80

110

100

3.33

Prob/year

10.00%

Usable life analysis cost

min Running Costs

max

0.25

average

0.35

stdev

0.3

0.02

External risks analysis proper to the alternative min

max

average

stdev

Prob/year

Energy Price

0.5

0.7

0.6

0.03

30.00%

Climate Changes

3

4

3.6

0.13

5.00%

Riskope International SA © 2009     www.riskope.com

24

The “financial parameters” and risks linked to building and  maintaining the Failed Rehabilitation can be summarized as  follows (in Million $, noted M):

 There is a probability of 10 % that after spending the initial  120M another 120M is necessary to finish the project.  The energy cost (diesel for the power plant) has a yearly  chance of p=30%  to multiply by two the current pumping costs  (C=2*3.6M/yr)  Because of climate changes the is a yearly chance of p=15%   that the cost of pumping may triple (C= 3*3.6M/yr) The data of the Failed Rehabilitation case are displayed in Figure 7,  directly taken from the screen of the CDA application we are using. 

Riskope International SA © 2009     www.riskope.com

25

Case title Life duration(Years) Construction budget

Failed Rehabilitation

Copyright Riskope International SA, 2004­* www.riskope.com

40 120

Email: [email protected] [email protected] Skype: droboni  or cesar.oboni

Construction analysis cost risk

min

max

average

stdev

Construction

80

110

100

3.33

Environmental Soundness

80

110

100

3.33

Prob/year

10.00%

Usable life analysis cost

min Running Costs

max 3

average 4

stdev

3.6

0.13

External risks analysis proper to the alternative min

max

average

stdev

Prob/year

Energy Price

6

8

7.2

0.27

30.00%

Climate Changes

9

12

10.8

0.4

15.00%

Riskope International SA © 2009     www.riskope.com

26

Traditional NPV analysis: ­Rehabilitation:120M$ construction, then 0.3M$/yr, 40  years life span NPV: ­123.23M$ ­Status Quo: 3.6M$/yr, 40 years life span NPV ­42.33M$

Riskope International SA © 2009     www.riskope.com

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Lets see how the CDA/ESM reacts at the 40 years time horizon  for the 2 alternatives   Status Quo, Rehabilitation, and the Failed Rehabilitation case. Figure  8 shows for each, min, max, average of the cumulative cost at fourty  years. ­450.00 ­400.00

Rehabilitation Status Quo

­500.00 ­350.00

­450.00 ­400.00

Failing Rehabilitation

­300.00

­350.00

­250.00

­300.00 ­200.00

­250.00 ­200.00 ­150.00 ­100.00 ­50.00 0.00

Rehabilitation Status Quo Failing  Rehabilitation

­150.00 ­100.00 ­50.00 0.00

Riskope International SA © 2009     www.riskope.com

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Sensitivity of the 2 alternatives to a variation of the  probability of  raising costs of energy to the level  used in this analysis. Probability  75%

­450.00

­400.00

­350.00

­300.00

­250.00

Probability  0%

Probability  5%

Probability  10%

Probability  20%

Probability  30%

Probability  40%

Probability  50%

­200.00

­150.00

­100.00

­50.00

0.00

For all probabilities of energy cost increase the Rehabilitation (yellow bar) is more costs  efficient than the Status Quo (blue bar), once all the three considered risks are included.  If the probablities that the costs of energy might be triple or more is considered, for any  value of it, the Status Quo alternative is less appealing than Rehabilitation. 

Riskope International SA © 2009     www.riskope.com

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The tool used to avoid these NPV pitfalls is called CDA/ESM™ and is  used to compare alternatives in financial terms, including:  Life’s cycle balance encompassing internal and external risks over a 

selected duration,  Project implementation and demobilization costs and risks.

The approaches described above have been successfully applied to: Rope v.s. road transportation  Surface v.s. underground solutions Water treatments alternatives Transportation networks Go/no­go decisions

Riskope International SA © 2009     www.riskope.com

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Tools exist and do work Experience is eloquent We all prefer to succeed rather than fail. Thinking and fixing before it happens is way cheaper than fixing afterwards Thanks to specific techniques each decision can be supported by transparent and rational evaluations ERM will not eliminate losses but reduce them and allow for quicker rebound Riskope International SA © 2009     www.riskope.com

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What can we accomplish? By using a transparent and sound quantitative approach we can: Scientifically select the most significant risks, Draw attention to the objective highest exposures (filtering emotional perceptions), and Prioritize them to allow reasonable mitigation in a very focused way.

We clearly enhance the ability to prioritize risks for a rational and sustainable development. Riskope International SA © 2009     www.riskope.com

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BUT, more importantly Create the basis to avoid a slide into a crisis, by proactively controlling the situation.

Riskope International SA © 2009     www.riskope.com

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