Four reasons PolyMet is good for Minnesota

Why is now an ideal time for Minnesota’s first copper-nickel mine? Let us count the reasons.

New mines and recycling meet growing demand for copper

We sometimes hear people say that there’s no need for new copper mines, that all we need to do is recycle more.

Copper already is one of the most...

PolyMet receives national Environmental Excellence Award


Our PolyMet project just won a major national environmental award.

Safety and stability of PolyMet tailings basin design, Part 1

This is part one of a two-part series focusing on the safety of PolyMet’s tailings basin design.  

A major consideration in any new mine development is what to do with the crushed and ground rock that’s left over after the economic metals have been removed from the ore.