In: Finance
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 A mining company is considering a new project. Because the mine has received a permit, the project would be legal; but it would cause significant harm to a nearby river. The firm could spend an additional $10 million at Year 0 to mitigate the environmental Problem, but it would not be required to do so. Developing the mine (without mitigation) would cost $60 million, and the expected cash inflows would be $20 million per year for 5 years. If the firm does invest in mitigation, the annual inflows would be $21 million. The risk-adjusted WACC is 13%. 
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As per rules I am answering the first 4 subparts of the question
1: NPV with mitigation = $3.86 million
2: IRR with mitigation = 15.24%
3: NPV without mitigation = $10.34 million
4: IRR without mitigation = 19.86%
WORKINGS;
| Year | Without mitigation | With mitigation | 
| 0 | -60 | -70 | 
| 1 | 20 | 21 | 
| 2 | 20 | 21 | 
| 3 | 20 | 21 | 
| 4 | 20 | 21 | 
| 5 | 20 | 21 | 
| NPV | 10.34 | 3.86 | 
| IRR | 19.86% | 15.24% | 
