The Mammoth Underground Leadership Team

Meet the team who are steering Mammoth Underground into its next chapter. Our leadership team brings together decades of mining expertise, proven success in underground operations, and a shared vision for excellence.

Bradley Hammond

Project Director

Brad brings over 20 years of expertise in underground and open-cut operations across various minerals, including Coal, Anthracite, Gold, and Manganese. He has formidable experience in both greenfield operations and in turn around projects across multiple operations. 

Adam Foulstone

Senior Site Executive (SSE)

Adam is an experienced mining executive with over 20 years in the industry, efficiently managing international mining assets. Adam’s expertise spans base metals, coal, and gold, in both brownfield and greenfield open pit and underground operations. 

Josie Blair

General Manager People

Josie Blair is an experienced and dedicated HR professional, having spent the past 16+ years in the mining industry building her knowledge and capability in supporting teams grow, develop and value culture. 

Karl Barndale

Production Manager

Karl brings over 20 years of experience in underground coal mining. He has played a key role in notable projects, including the TBM drifts and establishing the first coal for both development and the longwall at major underground operations, while also having managed Bord and Pillar across multiple operations.

Wynand Grobler

Technical Services Manager

Wynand Grobler, our Technical Services Manager is Geotechnical Engineer with over a decade of experience. He graduated from the University of Pretoria with a BEng in Mining Engineering followed by an Honours degree in Management of Technology.

Maddison Sedgman

Commercial Manager

Maddison Sedgman, our Commercial Manager, is an experienced leader in the resources sector. He began his career in financial audit with PwC advising a diverse range of organisations within the resources industry, including the world’s largest coal port, the Port of Newcastle.

Clinton Barnes

Engineering & Maintenance Manager

Clinton Barnes, Engineering and Maintenance Manager, is a qualified Site Senior Executive who brings extensive experience leading mining operations, construction, and maintenance projects while ensuring safety compliance and operational excellence.

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