Antofagasta files permits with US authorities for Minnesota copper project

Antofagasta Plc, through its Twin Metals Minnesota (TMM) subsidiary, has filed for operational and environmental permits with state and federal authorities in the United States, the company said on Wednesday December 18.

The project - through underground mining - will produce copper, nickel and platinum group metals when operational. The time to go from the study and development process for the project to filing of the permit took 10 years, the United Kingdom-based mining company said.

“Presenting the mine project proposal marks the beginning of a key stage in...


Renato Rostás

December 18, 2019

20:52 GMT

São Paulo