Expansion of Agreement with DISA Technologies

Metals One PLC

15 May 2026

 

15 May 2026

Metals One Plc

("Metals One" or the "Company")

Expansion of Agreement to Treat Uranium Waste Dumps with DISA Technologies

Metals One (AIM: MET1, OTCQB: MTOPF), a critical and precious metals project developer and investor, announces it has signed an agreement with DISA Technologies Inc. ("DISA") to seek to evaluate and, if successful, treat historically abandoned uranium mine waste dumps and recover saleable uranium and other critical mineral concentrates at Metals One's 100%-owned Uravan Belt Uranium-Vanadium Project in Colorado ("Uravan Project").

The Uravan Project was acquired by Metals One in July 2025. It comprises 59 unpatented mining claims (~490 hectares) situated near the historic Buckhorn Mine within the renowned Uravan Mineral Belt, a district responsible for more than 60 million pounds of uranium and 330 million pounds of vanadium production during the 20th century. Within the Uravan Project there are eight separate abandoned uranium mine waste dumps suitable for potential recovery. In September 2025, Metals One announced it had returned grades of up to 41,768 ppm uranium (4.17%) from historic waste material (UV5) from rock chip sample assays.

This agreement expands on the existing relationship with DISA, as detailed in the announcement on 4 September 2025 in connection with the Company's 75% -owned Radium Mountain and Wedding Bell claims, also in Colorado.

Under the agreement with DISA, DISA will now advance this exploration work as more fully set out below.

Highlights:

·    Metals One to be paid a Gross Revenue Share of saleable uranium and other critical mineral concentrates recovered from waste dumps at the Uravan Project via deployment of DISA's modular mobile plants utilising the patented High-Pressure Slurry Ablation ("HPSA") system

·    No capex or opex payable by Metals One

·    Metals One to receive a percentage of gross product sale revenue stream, minus certain post-treatment allowable costs - a sliding scale with a base rate of 2.5%, through to 4.0% in certain metals pricing environments

·    DISA to be operator of the Uravan Projects and pay all associated costs of permitting, evaluation, treatment and ongoing remediation

Advantages of HPSA:

·    The HPSA process treats surface dumps of previously partially mined and aggregated material

·    In September 2025, DISA became the first company to receive a Service Providers License (SPL) from the U.S. Nuclear Regulatory Commission (NRC) providing a regulatory license for DISA to remediate abandoned uranium mine waste

·    Aside from extracting valuable uranium and critical minerals, the process delivers significant improvements to the local environment and watersheds by removing on average 90% of the uranium and radium-226 content from the waste as evidenced by a treatability study DISA completed with the U.S. Environmental Protection Agency

·    There is strong US Government support for domestic recovery of uranium and critical minerals from legacy mine waste. This activity is directly in line with the recent Secretarial Order from the Department of the Interior (Order No. 3436: Unlocking Critical and Strategic Minerals from Mine Waste, Cutting Red Tape, and Restoring American Dominance in Strategic Mineral Production)

Next Steps:

·    Characterisation programme with a combination of assay and gamma probe to determine likely quantities of uranium and other recoverable minerals present in the waste piles

·    Application and completion of all requisite permits needed to commence treatment of waste and recovery of payable concentrates using HPSA technology

·    Future potential sale of metals concentrates and payment of gross revenue to Metals One

Daniel Maling, Managing Director of Metals One, commented:

"The Uravan Project sits within one of the United States' most prolifically mined uranium belts. Assays from Metals One's initial exploration activities last year indicate the exceptional grades historically mined from within the project, with multiple samples containing uranium and vanadium at ore-grade levels.

It follows that there is a significant opportunity to apply DISA's breakthrough process to remediate abandoned uranium mine waste from the identified sites and recover valuable uranium and critical minerals whilst improving the environmental legacy from historical mining.

We're delighted to expand our relationship with DISA to our other Colorado uranium project which represents another near-term revenue generation opportunity with no capex or cost exposure for Metals One.

DISA has made strong early progress in advancing its work on the Radium Mountain and Wedding Bell Claims. Their teams are due to sample various sites in the coming weeks. They expect to have gamma walkover data by the end of this month and assay results by end-Q3."

Enquiries:

Metals One Plc Daniel Maling, Managing Director Craig Moulton, Chairman	[e-mail] [phone]
Beaumont Cornish Limited (Nominated Adviser) James Biddle / Roland Cornish	[phone]
Oak Securities (Joint Broker) Jerry Keen / Calvin Man	[phone]
Capital Plus Partners Limited (Joint Broker) Jonathan Critchley	[phone]
Vigo Consulting (UK Investor Relations) Ben Simons / Fiona Hetherington	[e-mail]  [phone]

About Metals One

Metals One is advancing a strategic portfolio of investments which span early stage critical and precious metals exploration to a vertically integrated gold strategy in South Africa, with an objective to encompass power, mining and processing.

Metals One's shares are listed on the London Stock Exchange's AIM Market (MET1) and on the OTCQB Venture Market in the United States (MTOPF).

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About DISA Technologies

Founded in 2018, DISA Technologies is revolutionising mineral recovery with its patented High-Pressure Slurry Ablation (HPSA) technology - an innovative solution that upgrades critical minerals from mined ore and legacy waste. Serving both the mining and remediation sectors, DISA recovers valuable resources that power industry, strengthen energy independence and restore contaminated sites to productive use. DISA's technology unlocks economic and environmental value, transforming how the world processes, remediates and recycles essential mineral assets. DISA is headquartered in Casper, Wyoming, with a satellite office in Westminster, Colorado.

Market Abuse Regulation (MAR) Disclosure

The information set out herein is provided in accordance with the requirements of Article 19(3) of the Market Abuse Regulations (EU) No. 596/2014 which forms part of UK domestic law by virtue of the European Union (Withdrawal) Act 2018 ('MAR').

Nominated Adviser

Beaumont Cornish Limited ("Beaumont Cornish") is the Company's Nominated Adviser and is authorised and regulated by the FCA. Beaumont Cornish's responsibilities as the Company's Nominated Adviser, including a responsibility to advise and guide the Company on its responsibilities under the AIM Rules for Companies and AIM Rules for Nominated Advisers, are owed solely to the London Stock Exchange. Beaumont Cornish is not acting for and will not be responsible to any other persons for providing protections afforded to customers of Beaumont Cornish nor for advising them in relation to the proposed arrangements described in this announcement or any matter referred to in it.

 

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