With prices at all-time lows at the beginning of 1994, South Africa's sole primary aluminum producer--Alusaf--is considering building the world's largest greenfield smelter. Using cost estimates in this case, students can evaluate the relative cost position of this plant in the context of the cost data on other smelters provided in the spreadsheet accompanying "The Aluminum Industry in 1994." By building on the supply and demand analysis supported by that case, students can evaluate the profitability of this massive capital investment.