Hyterra Ltd · ASX:HYT
Hyterra — Drilling for Hydrogen Conference, Houston 2025
18 slides from Hyterra's conference presentation, Sep 15, 2025
Slide 1: Breaking new ground: Update on the Nemaha Hydrogen Exploration Project
Breaking new ground. For personal use only Update on the Nemaha Hydrogen Exploration Project, Kansas Josh Whitcombe, PhD. VP Development and Operations Drilling for Hydrogen ASX: HYT September 2025 hyterra.com Houston Texas A WORLD OF OPPORTUNITY
Slide 2: Important information
Important information This presentation and these materials (together the “Presentation”) have been prepared by HyTerra Ltd (ABN 68 116 829 675) (ASX: HYT, HyTerra or the Company) as a summary of HyTerra’s operations and results for the No distribution in United States or other jurisdictions outside
Slide 3: Our purpose
Our purpose July 2025. Drilling McCoy 1 at the Nemaha Project, Kansas. To deliver the world’s For personal use only cheapest, cleanest, and most profitable hydrogen. How we will get there. 01 Deliver a comprehensive exploration program. 02 Secure key partnerships and customers. 03 Demonstrate a comm
Slide 4: Firstly, what is geologic hydrogen?
Firstly, what is Hydrogen production cost ranges 2022-2023^, $US geologic hydrogen? $4.5-6/kg+ Green Geologic hydrogen is hydrogen gas that For personal use only exists naturally within the Earth's crust, unlike hydrogen produced through $2-5/kg industrial processes like steam methane Blue reforming
Slide 5: Why Kansas?
Why Kansas? Prospective subsurface above the Mid- For personal use only Continental Rift with strong well control, historical offset data and active research support. Stable, standardised jurisdiction with supportive local, State and Federal agencies across approvals, contractors and technical requi
Slide 6: Hydrogen and Helium in Kansas
Hydrogen and Helium Hydrogen Iron-rich rock-water interactions in Kansas Helium 3FeO(rock) + H2O → Fe3O4(rock) + H2 Water from the Rocky For personal use only Mountains seeps underground and flows eastward. Fe2+ The underground water reacts with iron-rich rocks at elevated temperatures to make H2, w
Slide 7: Clear strategy to explore and appraise resource potential
Clear strategy to explore and Multiple wells in multiple plays to appraise resource potential. methodically de-risk commercial viability. ✓ ✓ ✓ ✓ For personal use only # # # # Pre-Cambrian 10 km Granite Basement # Refer to ASX releases dated 31 March 2025 + 22 May 2025 + 3 July 2025 + 18 Aug 2025 re
Slide 8: All three wells found hydrogen and helium
All three wells found hydrogen and helium Fractured basement seen in all 3 wells For personal use only Geologic hydrogen and helium is present in the Precambrian basement1 Precambrian basement contains open fractures which show a general correlation with mudgas shows Early appraisal results demonstr
Slide 9: 2025 program advanced beyond initial well twinning
2025 program advanced beyond initial well twinning and delivered key technical milestones. For personal use only Mining, Oil, and Gas geoscience and geophysical workstreams established the foundation for future drilling. Applied proven exploration methods to hydrogen, targeting areas with confirmed
Slide 10: Hydrogen drilling is similar to oil and gas, but with unique challenges
Hydrogen drilling is similar to oil and gas, but with unique challenges. For personal use only It’s similar, but different. We had to adapt traditional approaches to exploration drilling for hydrogen. Standard exploration methods still apply; do your homework, clear well objectives, cost options and
Slide 11: Three hydrogen wells safely drilled with continuous operational improvements
Three hydrogen wells safely drilled with continuous operational improvements. Operational improvements led to reduced costs For personal use only Significant operational efficiency gains across the three wells. Drilled deeper for same budget with flat overall costs. Team continuity was critical. Spr
Slide 12: Local capability supported by global expertise
Local capability supported by global expertise delivered safe and efficient wells. For personal use only HyTerra leveraged Kansas-based contractors alongside industry specialists. Local partners included Murfin Drilling, Paragon Geophysical and Hurricane Services. Specialist support from SLB, Edge S
Slide 13: A world of opportunity
A world of opportunity. HyTerra is advancing hydrogen and For personal use only helium projects in the heart of an established agriculture and manufacturing hub. 01 All three wells found hydrogen and helium 02 2025 program advanced beyond initial well twinning and delivered key technical milestones.
Slide 14: Geneva Project
Geneva Project Hoarty NE3 gas samples. Samples taken from the well head shows helium up to 12.8% and hydrogen up to 44%1. For personal use only HyTerra has a 16% interest (and the right to earn up to 51%) in a Joint Development Agreement with Natural Hydrogen Energy LLC (NH2E). Wildcat well drilled
Slide 15: Nemaha Project returned hydrogen up to 96% in Sue Duroche 3
Nemaha Project returned hydrogen concentrations up to 96% in the Sue Duroche 3 well1. For personal use only Laboratory analyses of mud gas samples validate the historical occurrences of up to 92% hydrogen measured in historic Sue Duroche 2 well (2009)2. These concentrations of hydrogen are amongst t
Slide 16: Blythe 13-20 returned hydrogen and helium concentrations
Blythe 13-20 returned hydrogen and helium concentrations up to 16.5% and 4.4%1. For personal use only Laboratory analyses of mud gas samples validate the historical occurrences of up to 56% hydrogen measured in historic Scott 1 well (2009)2. Encouraging hydrogen and helium results, confirm the prese
Slide 17: Nemaha Project returned hydrogen up to 83% in McCoy 1
Nemaha Project returned hydrogen concentrations up to 83% in the McCoy 1 well1. For personal use only Laboratory analyses of mud gas samples confirm up to 83% hydrogen and 5% helium, in the first non-twin well Confirms the validity of in-house IP and subsurface understanding The McCoy 1 exploration
Slide 18: All Nemaha wells returned significant hydrogen and helium concentrations
All Nemaha wells returned significant hydrogen and helium concentrations For personal use only 2025 Nemaha wells returned helium concentrations of up to 5%1. The economic threshold for a helium-rich field in the USA is 0.3% for primary production2. Helium is an irreplaceable input for many important
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