Viridis Mining and Minerals (ASX: VMM) Secures Landmark Solvay Deal Covering 70% of Colossus Rare Earths Production

Viridis Mining and Minerals Limited (ASX: VMM) has secured a long-term rare earths supply agreement with European chemicals group Solvay, marking a significant commercial milestone for its Colossus Rare Earths Project in Brazil. With minimum supply commitments covering approximately 70% of anticipated magnet rare earth production capacity through 2034, the agreement strengthens the project's commercial prospects. The bigger question is whether Viridis can convert that commitment into the financing needed to bring Colossus into production.

Key Numbers

• 70%: Approximately the proportion of anticipated production capacity for four magnet rare earth elements covered by minimum supply commitments.
• 2034: Expiry of the initial Solvay agreement term, with shipments expected to begin in 2028.
• US$1.196 billion: Colossus definitive feasibility study (DFS) after-tax net present value, discounted at 8%.
• US$449 million: Estimated initial development capital, including US$44 million in contingency.
• A$119.7 million: Viridis' cash balance at 30 September 2026, before outstanding funding tranches.

The Latest Development

The agreement announced by Solvay on 5 November 2026 replaces the non-binding letter of intent established in June.

Under the arrangement, Viridis will supply mixed rare earth feedstock from Colossus to Solvay's La Rochelle processing facility in France.

Minimum committed volumes cover approximately 70% of anticipated production capacity for neodymium, praseodymium, dysprosium and terbium during the initial term.

Solvay also holds a right of first offer over remaining production.

The partnership provides a clearer route to market for Colossus and could strengthen financing discussions by reducing uncertainty surrounding future customers.

However, the announcement does not establish a fixed total contract value. Actual revenue will depend on delivered volumes, contractual pricing and the successful development of the project.

A separate technology licensing and technical support arrangement is also contemplated, potentially supporting higher-value rare earth carbonate production in Brazil.

What Stands Out to Us

The significance extends beyond securing a major customer.

Solvay operates established rare earth separation and purification infrastructure outside China, giving Viridis access to processing capabilities that would otherwise require substantial additional investment.

Colossus also has a sizeable resource foundation.

Its DFS outlines a 25-year production target supported entirely by ore reserves, with average annual output of approximately 4,446 tonnes of refined rare earth oxides.

The project's reported after-tax internal rate of return is 36.4%, with a modelled payback period of 2.7 years from first production.

These figures suggest attractive potential economics, although they remain forecasts rather than realised financial performance.

Viridis reported September-quarter operating cash outflows of A$2.26 million and investing outflows of A$9.10 million.

Its substantial cash balance reflects capital raising activity rather than operating cash generation.

With a market capitalisation of approximately A$550 million in early November, comparing its equity valuation directly with the project's US$1.196 billion NPV would overlook construction funding, future debt obligations and potential dilution.

What the Company Is Doing Now

Viridis is progressing engineering, procurement and financing preparations for Colossus.

During September, the company selected Sedgman and Blossom as its preferred engineering, procurement and construction management partners and advanced orders for long-lead equipment.

Brazilian development bank BNDES also approved a R$77.5 million financing facility supporting project-related development activities.

Separately, Viridis secured commitments for up to US$120 million in strategic equity funding.

At its 4 November annual general meeting, shareholders approved key share issues involving cornerstone backers ORE Regia and OneIM.

These developments strengthen construction readiness, although approximately US$280 million in remaining senior debt requirements remains a significant financing hurdle.

Insight: Does the Solvay Agreement Change the Colossus Outlook?

We think the Solvay agreement materially strengthens Colossus' commercial credibility. Securing substantial anticipated production volumes with an established European processor reduces market-access uncertainty and could improve the project's appeal to lenders. Its sizeable ore reserves and completed feasibility study provide additional support. Nevertheless, contracted demand does not guarantee profitable production. Construction costs, financing terms and rare earth prices will ultimately determine realised returns. Our assessment is increasingly positive on Viridis' commercial positioning, but full project funding remains the decisive test of its development prospects.

What Happens Next?

The immediate priorities are securing remaining senior debt funding, progressing regulatory approvals and advancing towards a final investment decision.

Viridis is targeting initial production in the second half of 2028.

The Solvay agreement represents meaningful progress towards establishing a commercially credible rare earth supply chain outside China.

For shareholders, the next major development will be evidence that Viridis can translate contracted demand and promising feasibility economics into a fully financed, economically sustainable operation.