Bisha is a large, high-grade volcanogenic massive sulphide (VMS) deposit located 150km west of Asmara, Eritrea, East Africa. The Bisha Mine benefits from high grade base metal reserves, strong support of the Government of Eritrea and an advantageous location with good local road and port infrastructure.
The ~$250 million Bisha Mine was constructed on-time and under budget from 2008 to 2010. Processing oxide ore, the mine produced low-cost gold-silver doré until mid-2013. Through a $110 million copper expansion project, also delivered on time and under budget, throughput expanded to 2.4 Mtpa supergene ore and the product switched to copper concentrate.
Commissioning of the zinc expansion plant commenced in June 2016 and commercial production was declared in October 2016. The build cost of the plant was approximately US$77 million, compared to a budget of US$100 million.
The Bisha Main deposit is located within the Bisha Mining License and the Harena satellite deposit lies in a separate Mining License 6 kilometers south, connected by a flat unsealed road. Bisha Main and Harena currently make-up 100% of the mineral reserves for Bisha.
Photos of the project can be found here.