PURE RESOURCES LIMITED — Board/Management Information 2026

May 17, 2026

PURE RESOURCES
ASX RELEASE
18 MAY 2026 | ASX:PR1

PURE RESOURCES LIMITED | ASX:PR1

AML3D Chief Executive Mr Sean Ebert Appointed as Board Adviser to Pure Resources

Sitting ASX listed CEO with active US Submarine Industrial Base contracting joins Pure Resources to support delivery of the Company's Defence Materials Platform Strategy.

HIGHLIGHTS

• Mr Sean Ebert, Chief Executive Officer and Executive Director of AML3D Limited (ASX: AL3), has been appointed as Board Adviser to Pure Resources for an initial twelve month term to support delivery of the Company's Defence Materials Platform Strategy.
• Mr Ebert is a sitting ASX listed CEO with current, contracted relationships across the US Submarine Industrial Base, BlueForge Alliance and HII Newport News Shipbuilding, bringing direct operating experience converting Defence demonstration contracts into recurring program of record style engagements.
• His engagement maps directly onto each of PR1's four Defence Materials pathways, including the NAVSEA garnet abrasive qualification through Reedy Creek, the Oak Ridge National Laboratory HREE plus Yttrium recovery program, the Rice University CNTF thermal management collaboration and the Company's broader AUKUS Pillar 2 positioning.

ANNOUNCEMENT

AML3D CEO Sean Ebert joins PR1 as Board Adviser

Pure Resources Limited (ASX: PR1) ("Pure" or the "Company") is pleased to announce the appointment of Mr Sean Ebert as Board Adviser to Pure Resources for an initial twelve month term, effective immediately. Mr Ebert joins as Board Adviser to support delivery of the Company's Defence Materials Platform Strategy, including the NAVSEA garnet abrasive qualification pathway through Reedy Creek, the Oak Ridge National Laboratory HREE plus Yttrium recovery program, the Rice University CNTF thermal management collaboration and the Company's broader AUKUS Pillar 2 critical minerals positioning.

PURE RESOURCES LIMITED
ABN 19 653 330 413 | 22 Townshend Road, Subiaco WA 6008 | pureresources.com.au | ASX:PR1

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PURE RESOURCES

ASX RELEASE 18 MAY 2026 | ASX:PR1

Mr Ebert is currently Chief Executive Officer and Executive Director of AML3D Limited (ASX: AL3), Australia’s leading wire arc additive manufacturing business and a qualified supplier into the United States Submarine Industrial Base, the United States Navy and HII Newport News Shipbuilding. He is a sitting ASX listed CEO with active, contracted relationships across BlueForge Alliance, HII Newport News Shipbuilding and the broader US Navy Maritime Industrial Base program office. Mr Ebert’s operating experience converting Defence demonstration contracts into recurring program of record style commercial relationships maps directly onto PR1’s four Defence Materials Platform pathways.

COMMENTARY

"Securing Sean as Board Adviser is a material step forward for Pure Resources. He is a sitting ASX listed CEO who is presently delivering production work into the US Submarine Industrial Base under contracts with BlueForge Alliance and HII Newport News Shipbuilding. That is precisely the procurement, qualification and industrial base ecosystem PR1 is moving into through the NAVSEA garnet pathway and our broader Defence Materials Platform Strategy.

"Sean has lived through the qualification process PR1 must now navigate, technical readiness levels, milestone payments, take or pay frameworks and US Navy Letter of Intent dynamics. He has also guided AML3D through a re-rating from a contract manufacturer narrative to a defence platform OEM narrative on the ASX, which is an analogous arc to the one PR1 is now executing as we move from a single asset story to a Defence Materials Platform story."

— Rocco Tassone, Interim Chief Executive Officer Pure Resources Limited

"What attracted me to Pure Resources is the breadth and quality of its Defence Materials Platform. The combination of NAVSEA aligned garnet through Reedy Creek, the ORNL heavy rare earth and yttrium recovery work, and the Rice University CNTF collaboration sits squarely inside the AUKUS Pillar 2 envelope that the US and Australian defence industrial bases are actively prioritising.

"Having moved AML3D’s ARCEMY platform from technology demonstrator to qualified supplier through Lloyd’s Register and DNV certification, and into recurring US Navy and HII Newport News Shipbuilding contracting, I have seen firsthand how a disciplined qualification pathway translates into a program of record style customer base. PR1 is on a comparable trajectory and I look forward to supporting Rocco and the Board as those pathways are executed.

"Critical materials qualification, AUKUS Pillar 2 alignment and US Submarine Industrial Base contracting are now central to how investors price defence aligned ASX small to mid caps. Pure Resources has built a credible platform across each of these vectors and I am pleased to be working alongside the team as Board Adviser."

— Sean Ebert, Incoming Board Adviser Chief Executive Officer, AML3D Limited (ASX: AL3)

PURE RESOURCES LIMITED

ABN 19 653 330 413 | 22 Townshend Road, Subiaco WA 6008 | pureresources.com.au | ASX:PR1

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PURE RESOURCES
ASX RELEASE 18 MAY 2026 | ASX:PR1

DETAIL

About Sean Ebert

Sean Ebert is the Chief Executive Officer and Executive Director of AML3D Limited (ASX: AL3), Australia’s leading wire arc additive manufacturing business and the world’s first wire additive manufacturing facility to receive Lloyd’s Register Additive Manufacturing Facility Qualification and DNV Approved Maritime Manufacturer certification. He brings more than twenty five years of executive experience across growth companies in engineering, technology and consumer goods sectors in Australia, the United States, China and Europe.

• AML3D Limited (CEO and Executive Director): Mr Ebert leads AML3D’s commercialisation of its proprietary ARCEMY wire arc additive manufacturing platform into the United States Submarine Industrial Base, including production contracting with BlueForge Alliance, recurring ARCEMY X system orders to HII Newport News Shipbuilding, and forward visibility provided by the July 2025 US Navy Letter of Intent identifying ARCEMY as pivotal to the US Maritime Industrial Base.
• US defence industrial base engagement: warm, current and contractually grounded working relationships across BlueForge Alliance, HII Newport News Shipbuilding, the US Navy Maritime Industrial Base program office and the broader AUKUS Pillar 2 ecosystem, supported by AML3D’s advanced manufacturing footprint in Ohio.
• Prior career: Global Director Mergers and Acquisitions at Worley; Chief Executive Officer of Camms Pty Ltd; and Chief Executive Officer of Profit Impact Pty Ltd, with earlier roles spanning growth companies in engineering, technology and consumer goods across multiple jurisdictions. Mr Ebert holds a Bachelor of Commerce (First Class Honours) from the University of South Australia and a Master of Business Administration (Financial Module) from Macquarie University.

Role, Strategic Significance and Engagement Terms

Mr Ebert will report to the Interim Chief Executive Officer and to the Board, attend Board meetings as adviser, and support the Company across the four Defence Materials pathways, including warm introductions and engagement across his US defence industrial network, ad hoc strategic counsel between meetings, and participation in selected investor and partner engagements at the Interim CEO’s request. The appointment is structured to operate alongside, and not in conflict with, Mr Ebert’s primary executive role as Chief Executive Officer of AML3D Limited. AML3D is not a competitor, customer or supplier of Pure Resources. Customary conflicts management provisions, including a positive obligation on Mr Ebert to disclose any prospective AML3D commercial activity that intersects with PR1’s strategic pathways, and corresponding recusal protocols, will be incorporated into the engagement letter.

PURE RESOURCES LIMITED
ABN 19 653 330 413 | 22 Townshend Road, Subiaco WA 6008 | pureresources.com.au | ASX:PR1

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PURE RESOURCES

ASX RELEASE

18 MAY 2026 | ASX:PR1

AUTHORISATION

Approval & Release

This announcement is approved for release by the Board of Pure Resources Limited.

Rocco Tassone
Chief Executive Officer
Pure Resources Limited

INVESTOR & MEDIA CONTACTS
Rocco Tassone, CEO investors@pureresources.com.au
Media enquiries media@pureresources.com.au

DISCLAIMER

Forward-Looking Statements

This announcement contains forward-looking statements concerning Pure Resources Limited (ASX: PR1) ("Pure" or the "Company") and its current expectations, intentions and projections regarding the Company's future operating and financial performance, business plans, projects, strategies, prospects and the markets in which it operates. Forward-looking statements can generally be identified by the use of words such as "anticipate", "believe", "expect", "intend", "may", "plan", "project", "potential", "estimate", "target", "forecast", "guidance", "should", "will" and similar expressions.

PURE RESOURCES LIMITED

ABN 19 653 330 413 | 22 Townshend Road, Subiaco WA 6008 | pureresources.com.au | ASX:PR1

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PURE RESOURCES

ASX RELEASE

18 MAY 2026 | ASX:PR1

ABOUT

Pure Resources Limited (ASX: PR1) is an ASX-listed advanced materials and critical minerals company pursuing an integrated mine-to-market strategy — from 100% ownership of an upstream graphite and garnet asset in Western Australia, through a US DoE Strategic Partnership for heavy rare earths, to a funded downstream R&D collaboration with Rice University (Houston) in high-performance carbon nanotube fibre.

THE MATERIAL OF THE INTELLIGENCE AGE

"CNTFs are not just an incremental improvement — they represent a step change in materials capability. Through advanced materials science, they unlock lighter, stronger and more conductive systems that redefine performance across defence, energy and advanced manufacturing. This is not evolution; it is a fundamental revolution in what materials can do."

01 UPSTREAM

Garnet Hills Project Graphite & Garnet

The Company's 100% owned Garnet Hills Project provides upstream exposure to graphite and garnet under a granted mining lease in Western Australia.

02 STRATEGIC PARTNERSHIP

Oak Ridge National Laboratory HREEs & Yttrium

The deposit has attracted a Strategic Partnership Projects Agreement with the US Department of Energy (DoE) Oak Ridge National Laboratory, targeting the recovery of Heavy Rare Earth Elements and Yttrium for United States critical materials supply chains.

03 IP COLLABORATION

Rice University Carbon Nanotube Fibre (CNTF)

Pure is executing a downstream strategy anchored by a funded R&D collaboration with Rice University, focused on Carbon Nanotube Fibre thermal management technology for Al data centre infrastructure and defence applications.

Fig. 1 Graphite sample locations at M80/416, Reedy Creek Garnet Project (GDA2020, MGA Zone 52).

• WESTERN AUSTRALIA - GRANTED MINING LEASE

Fig. 2 US DoE Oak Ridge National Laboratory — HREE & Yttrium recovery programme.

• US DEPARTMENT OF ENERGY - ORNL PARTNERSHIP

Fig. 3 Hierarchically structured textile heat exchangers — CNTF yarn to woven & knit spacer fabrics.

• RICE UNIVERSITY - FUNDED R&D COLLABORATION

PURE RESOURCES LIMITED

ABN 19 653 330 413 | 22 Townshend Road, Subiaco WA 6008 | pureresources.com.au | ASX:PR1