Blast Movement Technologies 2 / 67 Bluestone Circuit Seventeen Mile Rocks Queensland, 4073 office@bmt.com.au AUSTRALIA www.bmt.com.au 08/2017 Commodity Ore Grades Geology Powder Factor Location Gold 0.025 oz/ton ** Disseminated 0.33 lb/yd 3 North America This low-grade, disseminated gold mine is one of the top producing open-pit operations in the world. ? The mine drills 20 or 40 ft (6 or 12 m) benches that are mined in a single pass ? Current grade control method uses blast hole assays to create an ore control model ? The soft, sedimentary rock-hosted deposits (density 0.07 ton/ft 3 ) require a low powder factor to achieve sufficient fragmentation Blast movement did not appear to be a contributing factor to poor ore yield The BMM System accurately measu

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