Highlights

  • Ramsay wells delivered natural hydrogen purity up to 73.3% and helium concentrations reaching 17.5%.
  • Helium is irreplaceable in MRI scanners, semiconductor manufacturing, and aerospace rocketry markets.
  • South Australia's regulatory framework explicitly classifies natural hydrogen under the Petroleum and Geothermal Energy Act.
  • Gold Hydrogen is advancing Ramsay-3 appraisal well testing alongside modular pilot separation unit deployment.

From the Gawler Craton beneath South Australia's Yorke Peninsula, Gold Hydrogen (ASX:GHY) is extracting something genuinely rare — naturally occurring hydrogen at 73.3% purity and helium at 17.5% concentration, both from the same wells, in a jurisdiction that has already written the regulatory rulebook for exactly this type of resource.

Ramsay Wells Deliver World-Class Results

Testing programmes at the Ramsay-1 and Ramsay-2 wells recovered natural hydrogen purity levels of up to 73.3% and associated helium concentrations reaching 17.5%. These results validate the company's geological thesis that deep basement fracturing within the Gawler Craton actively generates and traps commercial accumulations of naturally occurring hydrogen.

Unlike manufactured green or blue hydrogen, naturally occurring subsurface hydrogen — known as gold or white hydrogen — presents an inherently low-carbon energy source with dramatically lower projected extraction costs. The dual-commodity profile positions Ramsay as an exceptional asset serving both decarbonisation mandates and high-value industrial gas markets.

Helium: The High-Value Co-Product

The economic leverage of the Ramsay asset is significantly enhanced by its helium co-product. Helium is an irreplaceable noble gas vital for semiconductor manufacturing, magnetic resonance imaging medical scanners, optical fibre fabrication, and aerospace rocketry. Global helium markets face recurring geopolitical supply shocks, resulting in sustained pricing premiums that frequently exceed several hundred US dollars per thousand cubic feet.

Ramsay's helium co-product has the potential to cover baseline field operating expenses, effectively subsidising hydrogen delivery into regional power networks — a compelling economic structure for a pre-production stage company.

Regulatory Framework and Pilot Plant Plans

South Australia's progressive regulatory framework explicitly classifies natural hydrogen as a regulated substance under the Petroleum and Geothermal Energy Act, providing GHY with an established statutory pathway for pilot plant development and subsequent commercial production licence conversion. This regulatory clarity is a major advantage over jurisdictions still developing natural hydrogen governance frameworks.

GHY's operational roadmap focuses on the Ramsay-3 appraisal well and deployment of a modular containerised pilot separation unit to produce commercial-grade bottled helium and hydrogen on site. GHY shares traded at $0.530 on 2 October 2026, gaining 2.91% to a market capitalisation of $95.64 million.

Technical and Commercial Risks

Natural hydrogen reservoir dynamics, migration mechanisms, and basement recharge rates remain subject to ongoing scientific study, introducing geological uncertainty regarding long-term flow sustainability and reservoir drainage efficiency.

Commercial viability requires specialised surface gathering lines and separation technologies suited to hydrogen's unique molecular properties. Converting exploration licences into commercial exploitation permits mandates comprehensive environmental approvals and community consultation across Yorke Peninsula farming communities.