The Sot deposit has been extensively drilled over its history. Over 21,390 surface and
underground diamond drill holes have been completed to define the current deposit for a total of
2,084,915 meters of drilling as of 30 June 2008 (Table 1.1). This includes 226 new drill holes in
the Southern operations totaling 22,407m of drilling. BQ (36.5 mm) was common from 1980 to
2003 while LTK60 core (44 mm) is currently used.