Re-domiciling is a "necessary and critical first step to preserve Polymetal's business continuity" the company says.

The "collaboration accord" sets up a commission to share expertise between the two companies over the next five years in "mutual interest areas".

The project is expected to provide SSR Mining with approximately 80,000 attributable gold-equivalent ounces.

PGM production from operations in southern Africa and the US declined to 480,481 ounces in Q1, down from 533,237 ounces during the same period last year.

The agreement will focus on studies to build a factory to produce briquettes from Vale's high-grade iron ore through direct reduction.

Diavik's workforce of about 1,100 people is nearly a quarter Indigenous and some 40% is Northern.