NorthIsle Copper and Gold Inc. Announces Positive PEA Base Case Results: $550.4 million After-Tax NPV (8%) and 14.3% IRR http://www.globenewswire.com/news-release/2017/09/13/1120496/0/en/NorthIsle-Copper-and-Gold-Inc-Announces-Positive-PEA-Base-Case-Results-550-4-million-After-Tax-NPV-8-and-14-3-IRR.html September 13, 2017 16:21 ET