Mitsubishi Gas Chemical and Gold Hydrogen have signed a memorandum of understanding to study a green methanol production facility on South Australia’s Yorke Peninsula, using natural hydrogen from the Ramsay Project as the primary feedstock, with a preliminary feasibility study planned for the second half of 2026 aligned with Ramsay flow testing.
The agreement positions MGC as both technology owner and methanol marketer in the staged process. On paper, the logic is compelling: natural hydrogen that surfaces at high purity without the energy input required for electrolysis, combined with captured CO2 and renewable power from a region with strong solar and wind resources, could produce green methanol at a cost structure that electrolytic routes cannot match. In practice, the chain of assumptions required to reach commercial methanol production remains long, and flow testing has not yet begun.
Gold Hydrogen controls more than 75,000 square kilometres of gas-related permits, including the Ramsay Project on Yorke Peninsula, and is positioning itself to supply scarce helium and low-carbon hydrogen to domestic and global markets. Previous drilling has confirmed natural hydrogen purity of up to 97% air-corrected from the Parara Formation at Ramsay 3, with a completions and well test program assessing flow potential from multiple formations planned for 2026. The purity figures are genuinely high. The critical variable that purity data cannot answer is volumetric flow rate: how much hydrogen a given formation can sustain over time, at what pressure, and over what decline curve. That question is what the 2026 flow test campaign is designed to begin answering.
What the Ramsay Project Has and Has Not Established
Gold Hydrogen’s first two exploration wells drilled in 2023 yielded hydrogen purity of up to 95.8% and helium purity of up to 36.9%, as verified by the 2024 well testing campaign. The Ramsay 3 well, located 2.3 km from Ramsay 1 and 2 and spudded on 10 November 2025, confirmed elevated levels of natural hydrogen in the Parara Limestone, with helium also detected at several depths within the Kulpara Dolomite formation, indicating potential continuity in the natural hydrogen and helium systems across the project area.
Continuity of the gas system across multiple wells is an important positive indicator. It suggests the resource is not confined to isolated pockets but extends across a definable geological structure, which is a precondition for commercial development. An independent Worley assessment indicated potential helium project viability with as few as two wells, with improved economics at larger scale. Helium is the more immediately commercially legible product: the global helium market is supply-constrained, prices are relatively stable, and the infrastructure requirements for liquefaction and export are well understood. Gold Hydrogen’s plan to make a helium-focused development the initial commercial platform, with natural hydrogen commercialisation following, is therefore sequenced toward the path of least resistance.
The methanol downstream adds a further layer of complexity and dependency. Methanol synthesis from hydrogen requires a CO2 source, and the carbon balance of the resulting product depends entirely on where that CO2 comes from. MGC’s CarbopathTM platform encompasses captured CO2, waste plastics, and biomass as feedstocks, which, in principle, allows for different configurations depending on regional availability. The project aims to capitalise on favourable local conditions, including renewable power, biomass, and port access, and is positioned as a potential supplier to key bunkering hubs such as Singapore. Yorke Peninsula’s access to the Port of Wallaroo and the broader Port Adelaide infrastructure provides logistical plausibility for export. South Australia’s high renewable penetration, regularly exceeding 70% of instantaneous grid supply, provides a credible source of low-carbon power for any auxiliary electrolysis or processing needs.
The Investment Signal and What It Reflects
MGC’s equity stake in Gold Hydrogen, which preceded the methanol MOU, is a meaningful signal rather than just a commercial agreement. It places the Japanese chemical manufacturer in the risk-sharing structure of the exploration project itself, not merely as an offtake customer or technology licensor. Toyota Motor Corporation, Mitsubishi Gas Chemical, and ENEOS Xplora have all made strategic investments in Gold Hydrogen. The presence of Toyota alongside two chemistry- and fuel-oriented Japanese industrial groups reflects different downstream interests in natural hydrogen: Toyota’s hydrogen fuel cell vehicle programme has an obvious interest in low-cost hydrogen supply, while MGC and ENEOS are more focused on chemical conversion and fuel blending pathways, respectively.
This investor configuration is consistent with the broader pattern in natural hydrogen exploration globally, where early-stage projects are attracting industrial rather than purely financial capital, because the downstream use cases for natural hydrogen, if it proves commercially extractable at scale, are sufficiently varied that vertical integration into the resource makes strategic sense for multiple industries simultaneously. The question for each of those industries is whether the geological promise demonstrated at Ramsay translates into sustained flow rates sufficient to support their respective downstream processes.
Green Methanol Demand and the Competitive Context
The methanol angle is timed to coincide with a genuine demand inflection. Global green methanol demand is driven primarily by maritime shipping, where the International Maritime Organization’s decarbonisation targets are creating a compliance-driven market for alternative fuels, and by the chemical industry, where methanol is a feedstock for a wide range of plastics, resins, and solvents. Maersk, the world’s second-largest container shipping company, has ordered vessels capable of running on methanol and has signed supply agreements with multiple green methanol producers to cover their fuel requirements. Stena Line and CMA CGM have made similar commitments. Singapore’s position as one of the world’s largest bunkering hubs makes it a natural target market for any Australian green methanol producer with Pacific export access.
The supply side remains thin. Commercially operating green methanol production is small relative to announced demand, and projects based on electrolytic hydrogen are constrained by the cost of renewable electricity and electrolyser capital expenditure. If natural hydrogen can be extracted at the volumes and cost implied by the geological indicators at Ramsay, it would bypass the electrolyser entirely, which is where a substantial fraction of green hydrogen’s current cost premium resides. The theoretical cost advantage is real. Whether the Ramsay resource can be converted into a reliable, large-scale hydrogen supply is the unanswered question on which both MGC’s methanol feasibility study and the project’s entire commercial architecture depend, and the flow test campaign beginning in mid-2026 will produce the first empirical data capable of supporting or constraining that assessment.
