29 April 2026

Helium One Global Ltd

("Helium One" or "the Company")

Appointment of New Chairman

AIM Rule 17 and Schedule 2(g) Disclosures

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, is pleased to announce the appointment of Clive Carver as Non-Executive Chairman with immediate effect.

James Smith has decided to step down from his role as Non-Executive Chairman.  James has been on the Board of Helium One since its IPO in 2020 as a Non-Executive Director, and as Non-Executive Chairman since August 2023. 

During James' tenure as a Director and Chairman, he has overseen a period of significant achievement for the Company, including its successful listing on AIM to the first helium discovery in Tanzania at the Company's southern Rukwa Helium Project, the award of Tanzania's first helium mining licence and the Company's farm in to the Galactica-Pegasus helium development project in the US.

Clive is an experienced public company non-executive director and chairman, having been chairman of a number of AIM companies in recent years, with direct experience in, amongst others, the oil & gas, oilfield services and mining sectors.  Clive is currently Chairman of AIM listed Caspian Sunrise plc and Built Cybernetics plc.

Clive is a fellow of the Institute of Chartered Accountants in England and Wales (FCA) and was for 30 years a fellow of the Association of Corporate Treasurers (FCT). While working in the UK broking industry Clive gained more than 15 years' experience as a Qualified Executive under the AIM Rules where he ran the Corporate Finance departments of several of the larger and more active Nominated Adviser firms.

Lorna Blaisse, CEO of Helium One, commented:

"The Board and I would like to record our formal thanks to James for his dedication to Helium One and for the substantial contribution he has made during his tenure as both a Non-Executive Director and Chairman of the Board. Under his stewardship, the Company has progressed through a pivotal phase of its development, evolving from a single-region explorer into a business with a portfolio of two development projects, production and near-term revenues. On behalf of the Board and all employees, I would like to thank James for his service and wish him well in his future endeavours."

"We are delighted to welcome Clive to the Board.  He has very extensive expertise in both the capital markets and resources arena and we look forward to working with him to further deliver our strategy and progress our projects."

Clive Carver, New Chairman of Helium One, commented:

"I am delighted to be joining the company at a pivotal stage in its development and with heightened interest in the international helium market."

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

Contact

AIM Rules for Companies ("AIM Rules") Schedule 2(g) disclosures for Clive Nathan Carver, aged 65.

Mr Clive Carver holds no ordinary shares of nil par value each in the Company.

Current directorships and partnerships:

- Caspian Sunrise PLC

- Built Cybernetics

- Satsuma Technology plc

- Eragon Petroleum Limited

- Eragon Petroleum FZE

Past directorships and partnerships held within the last 5 years:

- Airnow Limited

- Airnow TCX Limited

- Airnow Media Limited

- Labcave Ltd

- Fairfax Close Management Limited

- BNG Energy Limited

- Elk Associates LLP

- Elk Corporate Services Limited

Airnow Limited entered into a company voluntary arrangement on 9 October 2023, 11 months after Clive resigned as a director on 25 November 2022.

There are no further disclosures required for the appointment of Clive Carver in accordance with Rule 17 or Schedule 2(g) of the AIM Rules.

AIM Rule 17 and Schedule 2(g) disclosure

The following information is being disclosed pursuant to Rule 17 and Schedule 2(g) of the AIM Rules.

Sarah Cope, a Director of Helium One Global Ltd, is a Non-Executive Director of Directa Plus plc ("Directa Plus"), which is not connected to Helium One Global Ltd.  On 27 April 2026, Directa Plus appointed joint Administrators to manage the affairs of that company.

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 and 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 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 initial Galactica wells were tied into first gas in Q4 2025, with further wells coming onstream in 2026 for both helium and CO₂ production.