GATEWAY MINING LIMITED — Board/Management Information 2024

May 28, 2024

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ASX Announcement ASX: GML

29 May 2024

Gateway Announces Board Refresh to Drive Growth

Highly regarded mining executive Peter Langworthy appointed as Non-Executive Chair

HIGHLIGHTS

• Peter Langworthy, Gateway’s former Managing Director (2018-2021), returns to the leadership team as Non-Executive Chair, bringing extensive knowledge of the Montague Project and significant technical, geological and corporate expertise.

• Mr Langworthy has a distinguished 34-year career in mineral exploration and project development, best known for his role in leading Jubilee Mines NL's exploration team to major discoveries and as former Technical Director of Capricorn Resources.

• Non-Executive Chair Ms Debra Fullarton and Non-Executive Director Mr Scott Brown will both step down from the board due to growing commitments with their other roles. Both have made a significant contribution to the Company, having served since 2018.

• The Company acknowledges and thanks Ms Fullarton and Mr Brown for their leadership, dedication and vision.

• In conjunction with the $1.2 million capital raising also announced today, the Board refresh aims to ensure a strong, well-balanced and experienced senior leadership team to oversee the next phase of exploration at the Montague Gold-Base Metals Project as well as broader business development opportunities.

Gateway Mining Limited (ASX: GML) ( Gateway or Company ) is pleased to announce the appointment of highlyregarded mining executive Mr Peter Langworthy as Non-Executive Chair as part of a board refresh.

Mr Langworthy was Gateway’s Managing Director between 2018 and 2021 and played an instrumental role in the evolution of the Company’s growth strategy through the acquisition and initial exploration of the 526,000oz Montague Project in WA. Mr Langworthy is also a major shareholder of the Company.

As Non-Executive Chair, Mr Langworthy will contribute his vast technical, geological and corporate expertise to the continued exploration and evaluation of the Montague Project while also assuming a broader strategic role focused on business development, growth and strategic opportunities.

Mr Langworthy is one of Western Australia’s best known mining executives, with a distinguished career spanning more than 34 years in mineral exploration and project development. He is best known for his role leading the exploration team at Jubilee Mines NL, overseeing several major discoveries leading to its $3.3 billion acquisition by Xstrata.

He has held senior management roles with WMC Resources and PacMin Mining and also played key roles as a founding Director of ASX listed Capricorn Metals Limited and Northern Star Resources Limited. He has previously served as a non-executive Director of Talisman Mining, Falcon Minerals and Pioneer Resources.

Gateway Mining Ltd

LinkedIn: @gateway-mining Twitter: @gateway_mining www.gatewaymining.com.au

B1/431 Roberts Road Subiaco WA 6008

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Mr Langworthy will succeed Ms Debra Fullarton, who has resigned as Non-Executive Chair due to her growing commitments as Chief Financial Officer of Dreadnought Resources. Mr Scott Brown has also stepped down as a Non-Executive Director to focus on his role as Director and Business Manager of geological consultancy company Omni GeoX.

Both Ms Fullarton and Mr Brown have been on the board since 2018, and their leadership, dedication and vision has played a pivotal role in shaping the Company’s strategic direction. While Gateway will miss their invaluable contributions and presence, the Company thanks them both for their many years of dedication and service, and wishes them all the best in their future endeavours.

Mr Mark Cossom will retain his position as Managing Director, and Mr Trent Franklin and Mr Peter Lester will retain their positions as Non-Executive Directors, rounding out what the Company believes to be an experienced and well-balanced board structure with the appropriate balance of skills and a diverse range of corporate and technical expertise to lead the Company into this next stage.

Following this announcement, the structure of the Board and its officers will be as follows:

• Mr Peter Langworthy – Non-Executive Chair;

• Mr Mark Cossom – Managing Director;

• Mr Trent Franklin – Non-Executive Director;

• Mr Peter Lester – Non-Executive Director; and

• Kar Chua – Company Secretary.

Gateway’s Managing Director, Mr Mark Cossom, said: “We are delighted to welcome Pete back to the Gateway senior leadership team. Pete’s depth of technical knowledge, vision and capacity for lateral thought and innovation is second to none and his impressive CV speaks for itself. I am looking forward to Pete’s leadership as we embark on a fresh chapter at Gateway, aimed both at unlocking the full potential of the Montague Project while also evaluating new growth and BD opportunities. I would also like to express my sincere appreciation to Deb and Scott for their huge contribution to Gateway over many years.”

Incoming Non-Executive Chair, Peter Langworthy, said: “ It’s great to be back re-joining the leadership team at Gateway. I look forward to working closely with Mark to progress our growth strategy and put the Company in the best possible position to create value for our shareholders.”

This released has been authorised by:

Mark Cossom Managing Director

For and on behalf of GATEWAY MINING LIMITED

Investors Media Mark Cossom Nicholas Read Managing Director Read Corporate T: 08 6383 9969 T: 08 9388 1474 or Kar Chua Company Secretary T: 02 8316 3998

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Follow us on: LinkedIn: @gateway-mining Twitter: @gateway_mining

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APPENDIX (1)

About the Montague Project

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Montague Project Tenement Location Diagram

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