Collaborative drilling initiative Representative Drillhole From a Larger Program Y Drillhole Program Comments Olympic Dam Map / Unit Number 623700549 Max Drilled Depth (m) 1318.9 Max Drilled Date 18/12/1978 Cored Length Tenement SML 1 Operator BHP Billiton OD Corp. Pty Ltd. Target Gold, Base Metals, Uranium Oxide General Comments Drilling targeting IOCGU style mineralisation. Dip -90 Azimuth 0 Class Mineral Water Well Petroleum Engineering Stratigraphy

Datum GDA2020 Coordinate Source GPS Standalone Navigational MGA Easting 681103.33 MGA Northing 6630484.41 MGA Zone 53 Long Degrees 136 Long Minutes 53 Long Seconds 9.693 S Lat Degrees 30 S Lat Minutes 26 S Lat Seconds 39.021 Long Degrees Decimal 136.8860257 Lat Degrees Decimal -30.4441724 Horizontal Accuracy 10 Map 250K SH5312 ANDAMOOKA Map 100K 6237 Mattaweara Map 50K 2 SA Geodata - Database Reference Site No 1988284

Sample Allowed Hazard