AISC for gold miners The AISC for various miners depends on the grades, efficiency, and geographical breakdown of assets. The average AISC for five significant gold miners for 2015 is $903 per ounce—compared to $911 per ounce for 2Q15. This cost excludes interest charges, impairment, and taxes. So, including these charges, miners’ margins are very thin at the current gold prices." http://marketrealist.com/2015/09/comp-gold-miners-progressing-cost-cutting-front/