Australia’s Jupiter Mines will construct a manganese mine at Tshipi Borwa in the Kalahari manganese field, South Africa.

Jupiter Mines said in a statement that its joint venture firm, Tshipi e Ntle Manganese Mining, has given its approval for the proposed mine.

The construction of the Tshipi Borwa open pit mine will commence within 18 months, and is expected to produce about 2.4 million tons of manganese ore upon completion.

Jupiter Mines, which holds a 49.9% share in the project, will spend about $100m on the proposed construction.

The total cost is estimated at $200m, according to Jupiter Mines.

Jupiter chairman Brian Gilbertson said the decision triggers the development of the Tshipi Borwa mine, which will supply manganese to global steel producers for many decades.