Volta Extends Springer Rare Earth and Gallium System 275 Metres Below Modelled Open Pit, Highlighted by 5.00% TREO in Drill Hole SL26-37

NewsfileSep 3, 2026 · 1 day ago

Drill Intercepts ⛏

8/100.41 % · 414m

Analyst Takeaways

Volta has demonstrated continuous rare earth mineralization extending 275 metres below the modeled open pit, indicating significant depth potential and larger resource upside than currently outlined.
The 0.41% TREO average grade over 414 metres represents substantial bulk-tonnage rare earth mineralization with gallium credits (35.0 g/t Ga2O3), supporting open-pit viability at the Springer system.
Peak assay results of 5.00% TREO and 74.1 g/t Ga2O3 over 0.65 metres, with 1.20% magnet rare earths, confirm the presence of higher-grade zones within the broader mineralized envelope.
The 24.3% magnet rare earth component (including 9,366 g/t Neodymium) in the overall TREO indicates strong economic value, as magnet-grade rare earths command significant market premiums.
Extensional drill success at depth suggests the Springer system remains open, supporting the potential for expanded resource definition and longer mine life in future studies.

AI-generated · verify against original source

HIGHLIGHTSDrill holes SL26-37 and SL26-39 were mineralized over their entire assayed lengths of more than 400 m, demonstrating continuous rare earth and gallium mineralization. High-grade rare earths: SL26-37 returned 414 m at 0.41% TREO and 35.0 g/t Ga2O3 with 24.3%† of the total rare earths being top four magnet rare earths, including a peak assay of 5.00% TREO and 74.1 g/t Ga2O3 over 0.65 m (301.35-302.0 m), with 1.20 %† for the sum of the top four magnet rare earths, 9,366 g/t Neodymium...

Frequently Asked Questions

Is 0.41% TREO considered economic for an open-pit rare earth project?+

Yes, 0.41% TREO is a reasonable average grade for bulk-tonnage rare earth deposits amenable to open-pit mining, particularly when combined with high gallium credits (35 g/t Ga2O3) and magnet rare earth content that add economic value.

What does the 275-metre depth extension below the open pit mean for Springer's economics?+

This extension indicates the mineralized system continues below current pit designs, providing optionality for either larger open-pit mining or underground development in later phases, potentially increasing total recoverable resources.

Why is the 24.3% magnet rare earth proportion significant?+

Magnet rare earths (particularly Neodymium and Dysprosium) are higher-value products used in permanent magnets for electric vehicles and renewable energy; their prevalence improves project economics relative to lower-value light rare earth concentrates.

Do 414-metre-long intercepts indicate the full extent of mineralization?+

No; the press release states holes were "mineralized over their entire assayed lengths," suggesting the mineralized zones extend beyond what was assayed, indicating the system remains open and requires further drilling to define true boundaries.

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Volta Extends Springer Rare Earth and Gallium System 275 Metres Below Modelled Open Pit, Highlighted by 5.00% TREO in Drill Hole SL26-37

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