Agence France-Presse on MSN

'Metals of the future': Copper and silver flow beneath Poland's surface

Thousands of metres beneath the ground, amid suffocating heat, lies one of the keys to Poland's rumbling mining sector -- and the world economy. The 24-hour operation runs at a constant roar as ...
Nasdaq

Americas Gold and Silver Achieves Breakthrough With 99%+ Antimony Extraction From Its Copper Concentrate, Supporting Potential Primary Production in the United States

These assay results indicate an antimony-to-copper ratio in the tetrahedrite ore that is approximately 0.64-to-1 (versus 0.69-to-1 reflected in the above historical results). Antimony and copper is ...
Business Wire

Ceibo Raises $30 million to Scale Advanced Copper Extraction Technology

SANTIAGO, Chile--(BUSINESS WIRE)--Ceibo, an advanced copper extraction technology company, today announced it has raised a $30 million Series B financing. The round was led by Energy Impact Partners, ...
Nasdaq

Chilean Cobalt Corp. and Ecobiome Metals, LLC Sign Agreement for Strategic Partnership for Sustainable Cobalt and Copper Extraction

BERWYN, PA / ACCESSWIRE / February 14, 2024 / Chilean Cobalt Corp. (OTCQB:COBA) ("C3" or the "Company"), a US-based and US-listed critical minerals exploration and development company focused on the ...
insider.si.edu

The Hunt and Douglas process for extracting copper from its ores : with an appendix including notes on the treatment of silver and gold ores

"Copies of this ... pamphlet may be had by addressing J. Oscar Stewart ... For further information ... address James Douglas ... or T. Sterry Hunt" - p. 39. siris_sil_630058 ...
Seeking Alpha

Copper Leaching Technology Makes Freeport-McMoRan Shares Expensive (For Now)

Freeport-McMoRan's Q3 2023 results demonstrate strong performance and technological leadership in copper extraction. The bull thesis for copper stocks, based on structural shortages, may be challenged ...