The radiometric age of an ore hull in 14x28 cm dimensions found in the gallery of an old copper mine in the Çýmaklý quarter of Espiye town (Giresun) which was carried out in two different laboratories, has been dated as 2610 ± 70 and 2441 ± 30 yrs. According to these data the age of the material is as old as 2500 yrs, in other word belong to 500' s of BC. However the written sources point that the mining activities started in 183 BC, the ore hull found in the mentioned copper mine shows that the mining activities extend to 500' s of BC in the region. If it is considered that the district of Giresun was under the control of Persian empire between the years of 600-400 BC, the mining activities should belong to this period of time