Several hundred million euros of debt will be removed from its loss-making nickel subsidiary SLN.

Russia is the biggest global supplier of uncut diamonds by volume.

Eramet, which has refused to inject more funds into SLN, aims to reach a deal in the coming weeks to remove some 320 million euros of debt.

A challenge is that seafloor mining immediately starts off at a reputational disadvantage.

Prony Resources is one of three nickel processors in the French territory that face insolvency as high costs and political tensions have hit profitability.

Milestone positions the company as one of the few pure-play copper producers on the ASX, with first revenue from sales coming this week.

The government plans to offer fresh subsidies and loans for a New Caledonia nickel plant co-owned by Glencore.