Canadian gold mining company Golden Star Resources recently filed a technical report on the positive results of a feasibility study commissioned for its Prestea mine in Ghana.
The feasibility study was conducted to evaluate the possibility of a low-cost non-mechanized mining operation in the mine's underground deposits.
Company officials said surface mining at Prestea began late last year and mining of the underground deposits studied in the report is expected to begin sometime this year.
Previously, the company had estimated the total costs of developing the Prestea mine at $40 million.
As of the end of 2014, the company's projects accounted for 1.9 million ounces of mineral reserves and 6.6 million ounces of measured and indicated mineral resources.
Golden Star Resources is a publicly traded company based in Toronto that owns a majority interest in the Wassa and Prestea gold mines in Ghana.