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Great Northern Minerals Ltd.

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Summary

Project:

Big Rush

Deposit:Big Rush
Location:Australia
Commodities:Gold
Date:2/7/2020
Report Code:JORC
Report Type:Resource Estimation
Project Stage:Pursuing Resource Increase/Upgrade
Report details:7-2-2020: Great Northern Minerals Ltd. announces a Resource Estimation report for its Big Rush deposit at the Big Rush project. Initial mineral resource estimate for project. Great Northern Minerals Limited (“Great Northern Minerals” or the “Company”) (AS
Resources:(Resource, I+I): 0.558Mt @ 2.62g/t Au
CP/QP:[Resources]: Andrew Beaton (Not stated)
ABSTRACT:Great Northern Minerals Limited (“Great Northern Minerals” or the “Company”) (ASX: GNM) is pleased to announce a maiden JORC-compliant mineral resource estimate for the Central Lode at the Big Rush Gold Mine in Northern Queensland (Figure 1). A gold mineral resource of 558,322 tonnes at 2.62 g/t Au for 47,006 ounces of contained gold has been estimated above a 0.75 g/t Au cut-off grade and below excavations of the historic Central Pit (Figure 2). Table 1 below sets out the resource estimate at a variety of cut-off grades. The resource estimate consists of material in both the indicated and inferred categories. The Central Lode mineral resource estimate was independently estimated by experienced mine geologist Andrew Beaton of AKB Mining Geology Services Pty Ltd (AKB). A copy of the mineral resource report is attached to this release as Appendix A and the drill hole intersections used in the estimation are attached as Appendix 1. Big Rush, along with Camel Creek and Golden Cup, is one of three gold mines acquired by Great Northern Minerals as announced to the ASX on 15th August 2019. The Central Lode mineral resource is composed of four parallel mineralised domains which are located largely beneath the previously mined Central Pit gold mine. Approximately 55% of the resource is in the indicated category with the balance in the inferred category.

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