Post by Alan J. San Martin

Sandfire Resources America Adds Lowry Deposit, Extends Black Butte Copper Mine Life to 12 Years The updated PFS folds the Lowry deposit into the mine plan alongside Johnny Lee, pushing probable reserves to 14.3 million tonnes at 2.6% copper (370,000 tonnes contained) and stretching mine life from 8 to 12 years. Grade-wise, this remains one of the best undeveloped underground copper stories in the U.S. — Johnny Lee alone runs 2.9% copper, genuinely high-grade by North American standards. That…