As part of the privatization program by the Government of Tanzania, Minjingu mines along with its beneficiation plant was acquired in 2001. The mines have a proven 10 million tons deposit of Rock Phosphates that are mined at 29% - 30% P2 O5.

The Rock Beneficiation Plant on the mines has a capacity of 100,000 tons per annum and converts naturally occurring Phosphate in a powder form to a Beneficiated Rock Phosphate.

Phosphates are one of the three major nutrients for crop production. The Minjingu Rock Phosphate, due to its unique composition, has proven to be very beneficial to cash crops like coffee, tea, tobacco, and sugarcane, particularly in the acidic soils found in large parts of Tanzania.

Minjingu currently exports the Beneficiated Rock Phosphate to South Africa, Zambia, Kenya, Uganda, and Rwanda. The mine recently added a Granulizer Plant that adds value by converting the Beneficiated Rock Phosphate into a ready to use Fertilizer. The Plant will produce 30,000 tons of Fertilizer annually.