Specifications - Cannington Silver and Lead Mine, Queensland, Australia

Key Data
Producer of	Silver, lead and zinc
Location	200km southeast of Mt Isa, Queensland, Australia
Ownership	BHP Billiton (100%)
Geology type	Sulphides hosted in Middle Proterozoic metamorphic rocks
Mineral type	Galena and sphalerite, with silver present as freibergite and native metal
Reserve base	18.0Mt grading 477 g/t silver, 10.7% lead and 3.9% zinc (2005)
Annual production	3.1Mt run-of-mine ore (2005)
Mining method	Long-hole open stoping
Processing method	Crushing, grinding, flotation, with leaching to recover silver from lead and zinc concentrates prior to smelting
Employment	500
Key equipment (underground)	Sandvik (Tamrock) development and production drills
	Atlas Copco development and production drills
	Caterpillar and Sandvik LHDs
	Atlas Copco and Sandvik mine trucks
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