The Eunsan mill currently is processing stockpiled open-pit ore. The mine will follow an or-derly ramp-up schedule, blend-ing the stockpiled ore with in-creasing proportions of higher-grade underground ore. When underground operations reach commercial scale, Eunsan is expected to be mining and milling approximately 150 tonnes of ore per day, and producing up to 50,000 ounces of gold and 118,000ounces of silver on an annual basis, for at least two years.
Gold and silver grades at Eun-san demonstrate wide variability along strike and to depth. Based on 43 diamond holes drilled in 2000-2001, a decision was made to begin mining the high-grade, main ore shoot, estimated to contain an inferred resource of 251,800 tonnes, grading 15.0 grams (0.48 ounces) of gold per tonne and 83.8 grams(2.7 ounces) of silver per tonne.