Eastmain De-risks the Eau Claire Deposit with Measured and Indicated Gold Grade Increasing 51% to 6.2 g/t at the Clearwater Project

Eastmain Resources Inc.

TORONTO, ONTARIO--(Marketwired - Sept. 11, 2017) - Eastmain Resources Inc. ("Eastmain" or the "Company"- (TSX:ER)(OTCQX:EANRF), today reported an updated mineral resource estimate for its Eau Claire deposit, hosted on the 100%-owned Clearwater Property in James Bay, Québec. The new mineral resource estimate is based on an improved interpretation and better understanding of the deposit resulting in a significantly higher confidence level in the results. The new interpretation and estimate demonstrates higher grades and continuity of gold mineralization to a depth of 550 m and along strike for 1,100 m, remaining open at depth to the east.