Gold:
$US4,429/oz
A$6,150/oz
Share price:

Our Leadership

We lead by example, building trust and confidence across the business and guiding sustainable growth for the future

Our Board and Executive Team bring decades of technical, operational and financial experience, with a consistent record of delivering on commitments and driving disciplined, sustainable growth.

“With a great team, high-quality assets and a strong balance sheet, we are exceptionally well positioned to deliver sustainable growth and shareholder returns in the years ahead.”

— Bob Vassie

Non-Executive Chair

Board of Directors

Ramelius Resources’ Board of Directors provides effective company oversight, deep industry knowledge, strong governance capability and long-term strategic insight.

With a diverse blend of operational, financial and commercial experience, the Board provides clear guidance and disciplined oversight to support sustainable growth and protect shareholder value.

The Board is directed by the ASX Corporate Governance Council rules and oversees Company compliance. Individual Directors bring significant experience guiding ASX-listed companies to meet Corporations Act and ASX Listing Rules obligations.  

Ramelius has appointed six independent directors.

Meet Our Board

Team-Bob-Vassie03
Bob Vassie
Non-Executive Chair
FAusIMM GAICD B.MinTech (Hons) Mining
Appointment
Mr Vassie was appointed Non-Executive Chair of Ramelius in January 2021.
Skills and experience

Mr Vassie is a mining engineer with more than 40 years’ multi commodity and international experience. Mr Vassie spent 18 years’ with Rio Tinto in global mining and resource development Executive roles followed by Managing Director & Chief Executive Officer positions in Ivanhoe Australia and St Barbara Ltd with a focus on Executive leadership, resource development and business development including M&A.

Mr Vassie served as a board member for the Minerals Council of Australia from 2014 to 2020 where he chaired the MCA Gold Forum.

Current appointments
Non-Executive Director for Aurelia Metals Ltd, Independent Non-Executive Director for Federation Mining.
Committee membership
Member of Audit Committee Member of Nomination & Remuneration Committee Member of Risk & Sustainability Committee Member of Exploration & Growth Committee
Team-Mark-Zeptner
Mark Zeptner
Managing Director, Chief Executive Officer
BEng (Hons) Mining, MAusIMM, MAICD
Appointment
Mr Zeptner was appointed Chief Executive Officer of Ramelius in 2014 and Managing Director in 2015.
Skills and experience

Mr Zeptner is a Mining Engineer, educated at the Western Australian School of Mines in Kalgoorlie. He has over 30 years’ industry experience including senior operational and management positions with WMC and Gold Fields Limited at their gold and nickel assets in Australia and offshore.

He joined Ramelius as Chief Operating Officer in March 2012, was appointed Chief Executive Officer on 11 June 2014 and Managing Director effective 1 July 2015.

Team-Fiona-Murdoch
Fiona Murdoch
Non-Executive Director
LLB (Hons) MBA GAICD
Appointment
Ms Murdoch was appointed Non-Executive Director of Ramelius in December 2021.
Skills and experience

Ms Murdoch is a senior Executive leader with over 30 years of commercial and operational experience across the Australian and international resources and infrastructure sectors, including with MIM Holdings, Xstrata Queensland the AMCI Group.

Ms Murdoch brings deep expertise in industry knowledge, business development, mergers and acquisitions, risk management, governance and regulatory compliance, people, remuneration and culture, and global strategy. Ms Murdoch’s career includes executive and governance roles across mining, infrastructure and advisory, including as a former Partner at Neuchâtel Partners and past directorships with Building Queensland, KGL Resources and Core Resources.

Current appointments
Ms Murdoch is currently a Non-Executive Director of listed resources companies NRW Holdings Ltd (ASX: NWH) and also serves on the Onslow Iron Joint Venture Committee for AMCI and POSCO. Ms Murdoch also volunteers as Chair for The Pyjama Foundation.
Committee membership
Chair of Nomination & Remuneration Committee Member of Audit Committee
Team-David-Southam
David Southam
Non-Executive Director
B.Comm, CPA, MAICD
Appointment
Mr Southam was appointed Non-Executive Director in July 2018.
Skills and experience

Mr Southam is a Certified Practising Accountant with more than 30 years’ experience in accounting, capital markets and finance across the resources and industrial sectors. Mr Southam has been intimately involved in several large project financings in multiple jurisdictions and has completed significant capital market and M&A transactions.

He is the former Managing Director of Mincor Resources.

Current appointments
Mr Southam is currently an Executive Chair and Managing Director for Cygnus Metals Ltd and Non-Executive Chair for Andean Silver logo and Council Member and Chairman of the Audit and Risk Committee.
Committee membership
Chair of Audit Committee Member of Nomination & Remuneration Committee
Team-Colin-Moorhead
Colin Moorhead
Non-Executive Director
BSc (Hons), FAusIMM, GAICD
Appointment
Mr Moorhead was appointed Non-Executive Director in October 2022.
Skills and experience

Mr Moorhead is a geologist and very experienced resources Executive having spent 28 years’ with Newcrest Mining, including 8 years’ on the Executive committee responsible for global exploration and resource development.

Following this, he joined PT Merdeka Copper Gold Tbk as Chief Executive Officer, leading the very successful development of the Tujuh Bukit gold mine in Indonesia. He went on to become an Executive Director and later Non-Executive Director until June 2020.

Current appointments
Mr Moorhead is Non-Executive Director of Mineral Resources Limited, Non-Executive Director for VHM Limited, and a Non-Executive Director of Aeris Resources Limited (ASX:AIS). He is also a Principal Consultant & Economic Geologist with Colin Moorhead & Associates Pty Ltd.
Committee membership
Chair of Exploration & Growth Committee Member of Risk & Sustainability Committee
Team-Natalia-Streltsova
Natalia Streltsova
Non-Executive Director
MSc, PhD (Chem Eng), GAICD, MSME, MCIM.
Appointment
Dr Streltsova was appointed Non-Executive Director of Ramelius in October 2019.
Skills and experience

Dr Streltsova is a PhD- qualified Chemical Engineer and accomplished mining professional with strong technical, corporate and leadership skills. With over more than 30 years’ international minerals industry experience, including over 10 years’ in senior technical and corporate roles at Vale SA (formerly CVRD), with mining majors – WMC, BHP Billiton and WMC Resources she has focused on driving business growth through new project development, acquisitions, expansion into new commodities and commercialising innovative technologies and Vale.

Over the past decade, her board roles have provided extensive exposure to commercial, operations and financial aspects across diverse mineral commodities.

Current appointments
Dr Streltsova is currently a non-executive director of ASX-listed Centaurus Metals (ASX: CTM) and BMC Minerals (ASX: BMC). Over the past three years, Dr Streltsova has been non-executive Chair of Australian Potash Limited (ASX: APC) and a non-executive director of Neometals Limited (ASX: NMT) and Battery Future Acquisition Company (NYSE: BFAC).
Committee membership
Chair of Risk & Sustainability Committee Member of Exploration & Growth Committee
Team-Deanna-Carpenter
Deanna Carpenter
Non-Executive Director
LL.B., B.Ec.
Appointment
Ms Carpenter was appointed Non-Executive Director of Ramelius in July 2025.
Skills and experience

Ms Carpenter has over 15 years’ legal experience as a lawyer, including in the resources industry, with extensive experience in governance, risk management and corporate compliance, specialising in equity capital markets and mergers and acquisitions.

Ms Carpenter is currently a partner in the corporate and commercial practice of national law firm Hamilton Locke and has acted for and served on the Boards of ASX-listed companies, providing expertise on capital market and corporate transactions and governance.

Current appointments
Ms Carpenter is a Partner at Hamilton Locke and Director at Stitch in Time.
Committee membership
Member of Nomination & Remuneration Committee

Executive Team

Ramelius’ Executive Team brings decades of combined technical and corporate expertise, with specialisation across mining operations, exploration, finance and governance.  The decisions we make on behalf of the company are grounded in practical knowledge and proven experience.

Led by our CEO and MD, Mark Zeptner, the executive is focused on efficiency, effectiveness and making smart, informed choices that deliver solid outcomes.  Our people are committed to delivering a low-cost, consistent production profile year on year, in a sustainable and responsible way. 

We are inspired to realise our ambitious but achievable growth plan to become 500koz pa producer by 2030, without losing sight of our foundations.

Meet Our Leaders

Team-Darren-Millman
Darren Millman
Chief Financial Officer
BBus, CA, ICD.D
Skills and experience

Darren has more than 25 years of experience in financial management, capital markets and the mining sector, over his career arranging US$3B in financings and executing on M&A transaction to the value of US$4B. He began his career with KPMG in Melbourne before moving into senior finance roles in the UK and then Canada, supporting mining and construction clients. He later joined Ivanhoe Australia as General Manager Finance and Company Secretary, leading major financing activities and dual listings on the ASX and TSX. Darren moved to Centerra Gold in 2013 as Treasurer, became Vice President Finance in 2015 and was appointed Chief Financial Officer in 2016. Darren joined Ramelius in 2024. Darren is a Chartered Accountant (CA) and is a certified director of the Institute of Corporate Directors (ICD.D).

Team-Tim-Hewitt
Tim Hewitt
Chief Operating Officer
BEng (Hons) Mining, MBA (Fin & Acc), MAusIMM, MAICD
Skills and experience

Tim is a Mining Engineer with more than 30 years of experience in senior operational and management roles across the gold sector. His career includes leadership positions with Lihir Gold, St Barbara, Newmont and most recently Gold Fields, where he served as General Manager at multiple operations before becoming Vice President of Technical Services and Mining. Tim joined Ramelius as Chief Operating Officer in 2025.

Team-Alan-Thom02
Alan Thom
Chief Development Officer
BEng(Hons)(Mining), GDipAppFin, GradDipBus, FFin, MAusIMM, GAICD
Skills and experience

Alan has more than 28 years of experience as a director, senior executive, manager and engineer on resource projects from early-stage exploration through to feasibility, development and operations. He has held senior roles with Newmont and Northern Star Resources in mine management, project and operational development, large M&A transactions and integrations. His career spans Australia, New Zealand, Africa, Asia and North America, with deep capability in governance, environmental and safety management, financing and large-scale project delivery. Alan joined Ramelius in 2022.

Team-Peter-Ruzicka
Peter Ruzicka
Executive General Manager – Exploration
MSc, BAppSc, BSc, MAusIMM
Skills and experience

Peter is a Geologist with more than 20 years of experience in geological environments ranging from greenfields exploration through to near-mine resource development, and mine geology. Career focus has been on the Yilgarn Gold Province of Western Australia, including projects around Kalgoorlie, Southern Cross, Leonora, Laverton and Meekatharra. Previous experience in these areas includes leading teams to identify and advance high-potential targets, and generate exploration success through discovery, and resource and reserve addition. Peter joined Ramelius in 2021.

Team-Richard-Jones
Richard Jones
Company Secretary & Executive General Manager – Legal/Risk & Sustainability
LLB, FINSIA (Grad Dip), BA (Hons) Pol Sci/Econs
Skills and experience

Richard is a Corporate Commercial Lawyer with more than 25 years’ experience in both private practice and in-house roles across a range of industries. He has also served as company secretary for ASX-listed and unlisted companies in the mining sector, supporting governance, compliance and corporate affairs. Richard joined Ramelius in 2018.