About Mantle

A highly experienced, pioneering prospecting company built on the chemistry of pragmatism and data-informed science

Our Philosophy

Mantle Minerals is built on the fundamental belief that successful mineral exploration requires the perfect balance of scientific rigor and commercial pragmatism.

Our approach combines cutting-edge geological science with decades of practical experience, ensuring every exploration dollar is deployed strategically and effectively.

We focus on world-class mining jurisdictions where our technical expertise can unlock value in proven mineral systems.

Pragmatic Approach

Data-informed decision making balanced with commercial acumen and practical experience.

Technical Excellence

Rigorous scientific methodology combined with innovative exploration techniques.

Strategic Focus

Targeted exploration in world-class mining jurisdictions with proven mineral systems.

Experienced Team

Seasoned professionals with decades of combined experience in mineral exploration.

Board & Management

Our leadership team brings together decades of experience in mineral exploration, corporate development, and capital markets

Johnathon Busing

Johnathon Busing

Joint Company Secretary & Non-Executive Director

Mr Busing is currently the Founder and Director of Eleven Corporate. He specialises in advising ASX listed companies on compliance, mergers and acquisitions, consulting and statutory accounting requirements. Mr Busing was a forensic accountant at RSM before joining Mining Corporate in 2011 and was responsible for the compliance and requirements of ASX listed and unlisted entities. Mr Busing is the current Company secretary for multiple ASX listed entities, a member of Chartered Accountants Australia and New Zealand and holds a public practice certificate.

KEY EXPERTISE

Corporate ComplianceM&AStatutory Accounting
David Greenwood

David Greenwood

Non-Executive Director

Mr Greenwood has specific expertise in resources evaluation and financing, from exploration through to mine development, in addition to business development, minerals marketing and investor relations. Mr Greenwood is currently Managing Director of Orange Minerals Limited (ASX: OMX) and a Non-Executive Director of Argent Minerals Ltd (ASX: ARD). He was previously CEO of Godolphin Resources Limited (ASX: GRL) based in Orange NSW and a former Director of Askari Metals Limited (ASX: AS2).

KEY EXPERTISE

Resource EvaluationMine DevelopmentInvestor Relations
Robert Mosig

Robert Mosig

Non-Executive Director

Mr Mosig, a geologist with over 50 years of experience in gold, platinum, diamond and specialty metals was previously the founding Managing Director of Helix Resources Limited (ASX: HLX) and Platina Resources Limited (ASX: PGM). He is currently a Non‐Executive Director of Future Metals NL (ASX: FME).

KEY EXPERTISE

GeologyGold & PlatinumResource Development
Kieran Witt

Kieran Witt

Joint Company Secretary

Mr Witt is a Chartered Accountant with experience as a consultant advising ASX listed companies on capital raisings, mergers and acquisitions, statutory accounting requirements and corporate compliance. He is a member of Chartered Accountants Australia and New Zealand and holds a Bachelor of Commerce (Accounting).

KEY EXPERTISE

Corporate ComplianceCapital RaisingsAccounting