Kalumines is a copper mining property that includes the Kasonta, Lupoto and Niamumenda concessions, with a combined area of 77 square kilometres (30 sq mi).

The company initiated social investment projects that included water supply, transport and medical services for the local population of about 10,000 people, as well as the upgrade and construction of roads.

[2] TEAL announced that mining had started at Lupotu in May 2007 at a rate equivalent to 10,000 tons of copper per year in concentrate.

Teal was in the process of commissioning their furnace to produce black copper ingots, with the capacity to handle rather more than half the concentrate.

[2] In their 2011 annual report, (ARM), which had acquired a stake in the property, described it as being in the "exploration to feasibility" phase of development.