A mining company in South Africa has discovered a new gold vein in a mountain 150 kilometers north of Johannesburg. SA mining corporation will have to decide if they should set up a mine in the newly discovered location. They will be using the most cost effective, but environmentally damaging method of gold mining sulfuric acid extraction. To go ahead SA mining corporation must spend $900,000 on new mining equipment and pay $165,000 for its installation. The goldmine will make an annual profit contribution of $350,000 each year over the next five years of the extraction. SAs cost of capital is 14% and assume that cash flows occur at the end of each year.

1. What is the NPV, and IRR of the project?
2. Critically discuss how environmental effects should be considered when evaluating these types of projects (impact investing), include in your discussion the challenges in quantifying these issues in finance decisions of business organizations?