A Tucson-based startup is one of two finalists in an international competition to push development of new technologies to reuse mine tailings — leftover material from mining operations. Auxilium ...

A decade after a dam collapsed in Brazil, sending a deluge of toxic mud into villages and waterways, residents complain of an ...

Aim- and AltX-listed metals processing company Jubilee Metals Group has made significant further progress at its copper and cobalt tailings projects, in Zambia, with the successful execution of ...

Its billboards and online ads tout the South32 Hermosa project as a “different kind of mine for Southern Arizona.” Federal regulators are now asking the public to weigh in on how best to ...