We sat down with a couple of legends, Jill Irvin & Shane McLeay of Entech, the gurus on what’s needed to turn a deposit into a mine.

They taught us about all the tricks in a mining company’s key studies, what makes a good study or bad one, the key numbers to look out for, where clients put the pressure on them, what’s underappreciated about their work & a whole heap more.

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(0:00:00 )Introduction

(0:02:24 )Scoping vs PFS vs DFS

(0:07:33 )Resource confidence for studies

(0:11:10 )Exploration targets

(0:13:00 )Clues for a bad project

(0:15:00 )Managing capex vs optimal design

(0:16:55 )Chalice putting up 2 scenarios

(0:18:34 )Right amount of money to spend on studies

(0:20:24 )Internal studies

(0:22:38 )Competitiveness between consultants

(0:26:18 )Reviewing other studies

(0:31:34 )Refusing to do a study

(0:34:16 )Liability

(0:37:15 )Evolution of study requirements

(0:38:43 )Discount rates

(0:40:00 )Rules of thumb for grade

(0:42:18 )High grade that doesn't work

(0:43:46 )Importance of orebody continuity

(0:46:48 )Capex for 3rd world countries

(0:48:39 )Owner mining vs contracting

(0:51:54 )Geotechnical impact

(0:54:51 )Contingency

(0:55:54 )Contract tendering

(0:59:22 )Metal equivelants

(1:01:58 )Best study and most challenging study

(1:05:22 )Electrification

(1:07:48 )Conveyor systems

(1:12:40 )Electrifying open pits