Kidd Creek is a VMS Cu-Zn-Ag deposit. Mineralisation occurs within a rhyolitic volcanic/volcaniclastic sequence as massive sulphide lenses of dominantly pyritepyrrhotite- sphalerite-galena-rich ores that are underlain by copper in chalcopyrite stringer zones.

Ore Reserves are based on the approved mining plan to 3,000m (9,800ft) depth. Mineral Resources are reported to 3,440m (11,300ft) depth, and include new Inferred Resources recently outlined by an ongoing exploration program.

Kidd Mine located in Timmins, Ontario is the deepest base metal mining operation in the world with active mining taking place at 9,600 feet and the shaft bottom is currently at 9,889 feet, more than three kilometres deep.

The current extraction method at Kidd Creek is sublevel open stoping.

Lafarge has operated the paste plant since 2004. Over time the operational capacity has expanded resulting in increased reliability, decreased cost per tonne, and greater throughput. Lafarge’s backfill support services including processing and delivery of sand and tailings resulted in significant cost savings for the mine. Lafarge also provided a custom designed paste - TerraFlow ™ 90.

The metallurgical facilities are located 27 km south-east of the mine site.

Ore processed at Kidd Concentrator using conventional flotation techniques. The concentrator crushes and grinds the ore before flotation.