- 01Helium-3 confirmed in Ramsay 1 and 2 gas samples.
- 02Peak 1,200ppt: 165x atmospheric and 35% above prior high.
- 03GHY to assess separation and commercial potential.
Gold Hydrogen (ASX: GHY) has identified the presence of helium-3 in isotopic analysis of gas samples collected during this year’s flow test campaign at the first two wells of its onshore Ramsay project along South Australia’s Yorke Peninsula.
Testing at a specialist laboratory within Oxford University’s Department of Earth Sciences measured noble gas abundances and helium isotopic composition of two samples from the Ramsay 1 flow test and four samples from Ramsay 2 (two from the Kulpara Dolomite and two from the Hiltaba Basement).
The work confirmed helium-3 in gas brought to surface, with concentrations of up to 1,200 parts per trillion — or approximately 165 times atmospheric concentrations of 7.3ppt and 35% higher than the previous maximum of 901ppt reported from Ramsay 1 samples in 2024.
The results add to significant progress achieved in Gold Hydrogen’s 2026 Ramsay flow testing campaign across the first three wells, demonstrating a connected and highly productive helium-bearing reservoir extending for approximately 2.2 kilometres.
New Commercial Dimension
Managing director Neil McDonald said the identification of helium-3 in the same gas stream as helium could potentially add a new dimension to the company’s commercial opportunities at Ramsay.
“We are no longer looking solely at the development of a conventional helium project—we are now investigating an additional high-value critical gas with applications in some of the world’s most advanced technologies,” he said.
“The preliminary campaign results from Ramsay 1 and 2 are in line with reported levels found on the moon and there are nations wanting to mine the moon, but we will not have to launch a rocket to get it.”
“Combined with the scale, continuity, and productivity of our helium-bearing reservoir, we believe these results further strengthen the strategic potential of Ramsay.”
Rare and Valuable Gas
Helium-3 is one of the world’s most rare and valuable gases, with reported indicative values of approximately US$18 million per kilogram, depending on purity and market conditions.
It is critical to a range of advanced and emerging technologies including quantum computing and cryogenics, neutron detection and national security, medical imaging and research and fusion energy.
Naturally occurring helium-3 within a land-based helium system and flowing to surface as part of a helium-rich gas stream, represents an attractive alternative source for Gold Hydrogen, subject to the development, feasibility and demonstration of suitable separation technology.
Mr McDonald said the company looked forward to receiving the remaining Ramsay 3 results and engaging with specialist technology partners to assess the potential to separate and commercialise helium-3 as part of a future Ramsay helium development.
Get the wire before the market opens.
The ASX small-cap stories that matter, filed before 9am AEST. Curated by the Small Caps desk.