Chilwa Minerals CHWM

Cadell Buss has been our Chief Executive Officer and Managing Director since February 2022. Mr. Buss is a multi-industry senior executive with over 20 years' international experience in marketing, project development and capital markets. Mr. Buss was the CEO of Western Australia's longest serving stockbroking firm DJ Carmichael for 4.5 years and has consulted for a number of ASX-listed companies with African based assets. Mr. Buss was previously Project and Finance Director with Luso Global Mining (Luso), an angel investor to African based exploration companies. Mr. Buss is also a director of Atlas Pearls Ltd (ASX: ATP). Mr. Buss has a Masters degree in Project Management, an MBA from Murdoch University and is a graduate of the Australian Institute of Company Directors.

Jose Martins has been a Director since October 2025. Mr. Martins is a finance executive with over 25 years' experience in the management of public and private companies. Mr. Martins previously held CFO roles with Alliance Mining Commodities Limited (owner of a major bauxite project in Guinea, West Africa) and ASX listed Macmahon Holdings Limited and Ausdrill Limited (now part of Perenti). Mr. Martins qualified as a Chartered Accountant in South Africa, and holds a Bachelor of Accountancy (with distinction) from the University of Witwatersrand, Johannesburg, and is a graduate of the Australian Institute of Company Directors. Mr. Martins has also served as director of GenusPlus Group Limited since 2018. Mr. Martins has also served as director and Chairman of Atlas Pearls Ltd since May 2024 and January 2025, respectively.

Graham Hewson has been a Director since April 2026. Mr. Hewson is an accomplished industrial leader with more than 30 years of global experience in the mineral sands mining, titanium dioxide and titanium metal sectors. Mr. Hewson has expertise in enterprise-wide transformation, greenfield and brownfield project development and strategic mergers and acquisitions. Most recently, Mr. Hewson served as Executive Vice President, Titanium Operations at The National Titanium Dioxide Company Limited (Cristal, now Tronox Holdings plc), where he held operational accountability for a global portfolio spanning heavy mineral sands extraction, high-grade titanium dioxide production and specialized smelting operations. Mr. Hewson currently serves as director of Coogee Chemicals Pty Limited and director of Australian Gold Reagents (WESEF Group). He also provides executive advisory services to companies in the chemical and resource sectors. Mr. Hewson received his Master of Leadership and Management and Bachelor of Science in chemical engineering from Curtin University in Australia.

Mark Laybourn has been our Chief Financial Officer since February 2026. Mr. Laybourn is a Fellow Chartered Accountant with over 20 years of finance leadership experience spanning corporate transactions, consulting, and executive management. Mr. Laybourn was a senior finance executive at HBF Health Limited for 5 years from July 2020 to November 2025, serving as Chief Financial Officer of HBF Wellness, Acting Chief Financial Officer of HBF Health, General Manager, Group Finance, and General Manager, Commercial Finance. Mr. Laybourn was previously the Chief Financial Officer of Digital CC Limited (ASX: DCC) from June 2014 to April 2015, during which he led its ASX listing, the world's first blockchain technology company to list on a public exchange and scaled the business to A$40 million in revenue in its first 12 months. Mr. Laybourn also previously headed Deloitte's CFO Advisory and Digital Controllership practices in Perth from January 2018 to June 2020 and was a Senior Manager at Accenture from May 2015 to December 2017. Earlier in his career, Mr. Laybourn was an Associate Director of Corporate Finance at Euroz Securities Limited from October 2008 to May 2014. Mr. Laybourn was a Non-Executive Director and Finance & Audit Committee Chair at All Saints College from January 2023 to December 2025. Mr. Laybourn does not hold any other current directorships for public companies. Mr. Laybourn holds a Master of Business Administration from the University of Western Australia and a Bachelor of Commerce from Curtin University.

Alexander Shaw has been a Director since February 2022 and was appointed as our Chairman in October 2023. Mr. Shaw is an accomplished geologist with more than 15 years of global experience in mineral exploration and production. Mr. Shaw spent the majority of his career exploring for and developing diamond, base and precious metal deposits within Africa and Central and South America. Mr. Shaw has significant knowledge of the Africa region, having obtained his DPhil from the University of Oxford on the geology of the Mega Kalahari Basin and having managed and developed projects in Angola, Zambia, DRC, Botswana and Namibia with First Quantum Minerals and BHP. Mr. Shaw is a Fellow of the Geological Society of London and a member of the following professional bodies: Australian Institute of Geoscientists, Southern Africa Institute of Mining and Metallurgy, American Institute of Professional Geologists and the Society of Economic Geologists. Mr. Shaw is the chief executive officer and managing director of Luso Global Mining BV, which is a principal shareholder of Chilwa.

Mr. Antonio Manuel Queiros Vasconcelos da Mota has been a Director since April 2023. Mr. Mota is a board member of Mota-Engil Group, which indirectly owns approximately 31% of Chilwa, and has been its Chief Business Development Officer since June 2021. Mr. Mota has been a board member of Mota-Engil Group since February 2016, when he was also appointed CEO for Africa, and he was subsequently also appointed as CEO for Middle East and Europe in March 2019. Previously, Mr. Mota was a member of the board of Mota-Engil Europe Engineering & Construction. Mr. Mota has acted as Chief Executive Officer for Mota-Engil Central Europe since May 2013, which included responsibility for Poland, Czech Republic and other central European countries. Mr. Mota started working as an engineer at Mota-Engil Group in Angola since 2009 and also served as director of Mota-Engil Angola. He graduated with a Masters in Civil Engineering from University College London.