Helium One Regulatory News (HE1)

31 October 2025

Helium One Global Ltd

("Helium One" or the "Company")

Galactica Development Update

Helium One Global (AIM: HE1), the primary helium explorer in Tanzania with a 50% working interest in the Galactica-Pegasus helium development project in Colorado, USA ("the Galactica Project"), provides an update following the Blue Star Helium (ASX: BNL) ("Blue Star") announcement issued today regarding the Galactica Project.

Highlights

· Construction has commenced on the production facility pad and gathering system

· First helium production on schedule for December 2025

Details

Blue Star confirm that contractors, Redbud Partners LLC and PVC, broke ground on both the production facility pad and the gathering system yesterday, and remains on schedule to deliver first gas in December.

Site works are underway for the 120m x 150m production facility pad and concurrent upgrade of the immediate access road, which will prepare the site for the delivery and installation of production equipment. The procurement and delivery of all major production components is proceeding on schedule.

The gathering system is designed to incorporate future infill and expansion wells and will include taps and risers set for connection of future wells. Construction is starting at Jackson-31 followed by the main trunkline and then extending out to the other existing wells and finally connecting to the Pinon Canyon Plant site.

The Company remains on schedule to deliver first helium in December and first CO2 for sale in H1 2026. The Galactica Pinon Canyon Plant is planned to be ramped up to full capacity as wells are progressively tied in during H1 2026.

Blue Star's CEO on location at the Pinon Canyon Plant site as construction starts ahead of delivery and installation of construction equipment.

Redbud Partners LLC start construction of the gathering system from the Jackson-31 well location, prior to moving onto the trunkline and connection to the Pinon Canyon Plant site.

For further information please visit the Company's website: www.helium-one.com

Notes to Editors

Helium One Global, the primary helium explorer in Tanzania with a 50% working interest in the Galactica-Pegasus helium development project in Colorado, USA. The Company holds helium licenses within two distinct helium project areas, across two continents. With an expanding global footprint, the Company has the potential to become a strategic player in resolving a supply-constrained helium market.

The Company's flagship southern Rukwa Project is located within the southern Rukwa Rift Basin in south-west Tanzania. This project entering a full appraisal and development stage following the success of the 2023/24 exploration drilling campaign, which proved a helium discovery at Itumbula West-1 and, following an extended well test ("EWT"), successfully flowed 5.5% helium continually to surface in Q3 2024.

Following the success of the EWT, the Company filed a Mining Licence ("ML") application with the Tanzania Mining Commission in September 2024 and the 480km2 ML was formally awarded to the Company in July 2025.

The Company also owns a 50% working interest in the Galactica-Pegasus helium development project in Las Animas County, Colorado, USA. This project is operated by Blue Star Helium Ltd (ASX: BNL) and has successfully completed a six well development drilling campaign in H1 2025. The completion of the development programme is a key component of the broader Galactica-Pegasus development strategy; aimed at progressing the helium and CO2 discoveries to near-term commercial production.

This programme has seen a systematic approach to developing the extensive Lyons Formation reservoir. The programme has delivered encouraging results, in line with expectations, consistently encountering good helium (up to 3.3% He) and CO2 concentrations in the target formation and demonstrating promising flow potential. The next steps will see the Galactica wells tied into initial production in Q4 2025.

Helium One is listed on the AIM market of the London Stock Exchange with the ticker of HE1.