Antofagasta to test use of hydrogen in mining equipment

Yamana Gold’s stock was up 4.65% in after hours trading.

The optionee must spend $4 million on exploration, pay Casa $550,000 and issue Casa 2.5 million shares in yearly stages.

US-China trade spat benefitting copper miners as tariffs on scrap imports boost concentrate shipments 17% to nearly 2m tonnes.

Nussir says the area contains an estimated 72 million tonnes of copper ore - Norway's largest reserve.

Yauricocha's reserves are, in the proven category, 1.8 million tonnes and a little over 7 million tonnes in the probable category.

The company recorded revenue of $377.1 million and adjusted net earnings of $29.0 million.

Iron Creek contains 26.9 million inferred tonnes grading 0.08% cobalt and 0.3% copper for 46.2 million lb. cobalt and 176.2 million lb. copper.

Peru's environmental regulator OEFA has concluded that mining waste from the company's Cuajone mine did not spill into a river during heavy rains last week.

The company pinned the cost increases partly on mining ending at its low-cost Cortez Hills open pit in Nevada in the first half of the year.