IRIS METALS LIMITED — Board/Management Information 2025

Nov 30, 2025

ASX:IR1 - ASX RELEASE 1 December 2025

iris metals bolsters board with winsome founder, chris evans, as it accelerates us dual listing

HIGHLIGHTS

• Mr. Chris Evans joins the Board of IRIS Metals as Non-Executive Director

• Mr. Evans brings to IRIS more than 20 years’ experience in the lithium and critical minerals industry, including leadership of ASX-listed Winsome Resources

• Appointment strengthens IRIS’ Australian corporate, capital markets and investor relations capability while the US-based team maintains full operational control in South Dakota

• Mr Evans’ cross-border expertise will support IRIS’ recently announced strategy to pursue a dual listing on a major US stock exchange

IRIS Metals Limited ( ASX : IR1, “IRIS” or “the Company”) is pleased to announce that Chris Evans has today been appointed to the Board as a Non-Executive Director. This appointment strengthens IRIS’s strategic and operational expertise as it advances to become a key domestic supplier of critical minerals for the U.S clean energy transition.

Following the Company’s recent announcement of its intention to pursue a dual listing on a major U.S. stock exchange (such as Nasdaq or NYSE), IRIS is well positioned to deepen its North American footprint, unlocking enhanced liquidity and investor access to fuel accelerated development of its South Dakota assets.

Mr Evans is a highly regarded lithium industry executive with a proven track record in exploration, project development, financing and stakeholder engagement. He is the founder and current Managing Director of Winsome Resources Limited (ASX: WR1), where he has led the Company from early-stage exploration to the imminent release of a Maiden Resource Estimate at its flagship Adina and Cancet lithium projects in Quebec, Canada.

Before founding Winsome, Mr Evans held senior resources-sector roles with extensive experience in corporate strategy, capital markets and government relations – expertise that directly strengthens the IRIS board as it accelerates resource definition and pathway-to-production studies across its portfolio of lithium and critical minerals in South Dakota.

Based in Perth, Western Australia, Mr Evans brings extensive North American industry experience and well-established contacts across both continents. His addition is a deliberate and timely step to bolster Australian governance and investor relations while providing critical strategic guidance for the planned U.S. listing and ongoing operations in South Dakota.

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The U.S.-based executive team — comprising Non-Executive Directors Kevin Smith and Anthony Collins, and President of U.S. Operations Matt Hartmann — retains full operational and technical oversight of the South Dakota Project. This complementary global board structure, now strengthened by Mr Evans’ cross-border expertise, ideally positions IRIS for its planned dual listing on a major U.S. exchange.

Chris Evans commented:

I’m delighted to join the IRIS board at this critical growth phase. It is very evident to me that IRIS has significant potential to deliver secure, domestic critical minerals supply into the North American market. The dual-jurisdiction model — soon to be reinforced by a US listing — is a clear strength, and I look forward to helping drive value for all shareholders.

IRIS Metals Executive Chairman Peter Marks commented:

“We are extremely pleased that Chris has chosen to join the IRIS team, bringing his highly successful career, sought-after industry expertise, and extensive network of Australian and North American contacts. His appointment is purposeful and timely. We now have senior, industryexperienced leadership embedded in both Australia and the U.S. — this dual-jurisdiction structure gives us the best of both worlds: a strong local presence in Australia to support our continued ASX listing and deep corporate, technical and operational expertise in the U.S., home to our primary mining hub in South Dakota.

This is a solid, pivotal step forward for the Company as IRIS positions itself for growth — equipping us with the leadership, networks and cross-border capability essential to scale effectively, including through our recently announced pursuit of a dual listing on a major US stock exchange, and to seize the emerging opportunities in North America’s critical minerals supply chain.”

Mr Evan’s is classified as an independent director.

Further to the appointment terms with Mr Evans, Mr Evan’s remuneration package includes incentive securities to be issued by the Company under Listing Rule 10.12 Exemption 12, as outlined in Part 3 of his “Appendix 3X – Initial Director’s Interest Notice”.

ENDS

This announcement was approved for release by the Board of Iris Metals.

For further information, please contact:

COMPANY

INVESTORS & MEDIA

Peter Marks Melissa Tempra E. admin@irismetals.com E. melissa@nwrcommunications.com.au

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About IRIS Metals (ASX:IR1)

IRIS Metals Limited (ASX: IR1) is an ASX-listed critical minerals exploration and development company with a dominant, district-scale land position in the Black Hills of South Dakota, United States.

The Company’s flagship South Dakota Critical Minerals Project hosts one of the largest known fields of lithium-caesium-tantalum (LCT) pegmatites in North America, with demonstrated high-grade lithium, beryllium, cesium, rubidium, tin and tantalum mineralisation. Located in a tier-1, mining-friendly jurisdiction, the project benefits directly from substantial U.S. Government incentives for domestically sourced critical minerals essential to the clean-energy and defence sectors.

The Black Hills pegmatite province has a rich mining heritage dating back to the 1800s and is renowned for containing the largest recorded spodumene crystals ever mined. IRIS has consolidated the majority of the prospective ground in the district and continues to expand its holdings.

With a strong U.S.-based technical and operational team and a growing Australian corporate presence, IRIS is advancing rapidly toward resource definition and development while pursuing a dual listing on a major U.S. stock exchange to enhance liquidity and North American investor access. To learn more, please visit: www.irismetals.com

Forward-looking statements

This announcement contains forward-looking statements. These are based on current expectations about future events and are subject to risks, uncertainties and assumptions that could cause actual outcomes to differ materially. Factors include (but are not limited to) exploration and development risks, commodity prices, regulatory changes and general economic conditions.

Not an offer in the United States

This announcement does not constitute an offer to sell, or a solicitation of an offer to buy, securities in the United States or any other jurisdiction.

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