Marridale Resources
Company
Marridale Resources was founded in 1994 on a single pastoral lease in South Australia’s upper north. Kettle Hill entered production in 1997 and remains our foundation asset. The company listed on the exchange in 2004 and has paid a dividend in every year since 2011.
“The minerals under this country are a common wealth. A licence is not ownership. It is permission to hold something that belongs to everyone, for a while, and to answer for the state you hand it back in.” - Byron Lee-Edwards, Managing Director and Chief Executive Officer, FY26 Annual Report
Leadership
| Byron Lee-Edwards | Managing Director and Chief Executive Officer |
| Helen Prasad | Chief Operating Officer |
| Warrick Nunn | Chief Financial Officer |
| Dr Anh Trieu | Executive General Manager, Environment and Approvals |
| Margaret Oyelaran | Executive General Manager, People and Communities |
| Stuart Killeen | Company Secretary and General Counsel |
| Dr Roman Siever | Director and Lead Scientist, Biochemical Division |
Byron Lee-Edwards was appointed Managing Director in 2019, having joined Marridale in 2011 and served previously as Chief Operating Officer. He is a mining engineer by training and sits on the industry council’s rehabilitation working group. Full biography →
The Biochemical Division was established in July 2026 and reports to the Managing Director. It does not report separately for segment purposes.
Board
The Board comprises six directors, four of them independent. The Board meets ten times a year and maintains three standing committees: Audit and Risk, Remuneration and Nominations, and Sustainability.
The Sustainability Committee reviews environmental performance, community grievances and closure planning each quarter, and reports to the full Board.
Governance
Our governance framework, Code of Conduct, Whistleblower Policy and Anti-Bribery and Corruption Policy are available on request from corporate affairs while the document centre is being rebuilt.
Marridale maintains an independent whistleblower service operated by an external provider. Disclosures may be made anonymously.