The Bisha copper-zinc mine is the largest producing zinc project in Eritrea, extracting 2.9 million tonnes of ore per annum.
In 2024, the project initiated waste rock stripping and ancillary infrastructure construction for the Hambok open pit, with ore extraction expected to begin in the first quarter of 2026.
Zijin Mining completed the acquisition of a 60% interest in the Bisha copper-zinc mine in 2019. Currently, it holds a 55% interest in the project, while the Eritrean National Mining Corporation (ENAMCO) holds the remaining 45%.