Our Team

Non-Executive Chairman

Mr Mansell has extensive experience in the mining, corporate and energy sectors, both as an advisor and as an independent
Non-Executive Chairman and director of listed and unlisted companies.

Mr Mansell practised corporate and resources law for a number of years in South Africa and Australia. He was previously a partner at Freehills (the predecessor of the law firm Herbert Smith Freehills), including the Managing Partner for over 10 years, and its National Chairman.

He retired from legal practice in 2004 and has since held directorships in a number of companies including BWP Management Ltd, Foodland Associated Ltd, OZ Minerals Ltd, WA Newspaper Holdings Ltd (Chairman), Electricity Networks Corporation (trading as Western Power) (Chairman) and Zinifex Ltd (Chairman). Mr Mansell also chaired the Advisory Board of Pacific Aluminium Ltd in anticipation of its intended float in 2014.

Mr Mansell’s current external appointments include Non-Executive Director of Foodbank of Australia Ltd and Energy Resources of Australia Ltd.

Non-Executive Director

Mr Rule has more than 25 years’ experience as the CFO of ASX listed mining companies with operations and projects in Australia, Africa, North and South America across several commodities. He has also been a Non-Executive Director of listed companies since 2016. He is currently a Non-executive Director of Yellow Cake plc, an AIM listed company.

Mr Rule has considerable experience in international debt and equity financing of mining projects, implementation of accounting controls and systems, risk management, governance, and regulatory requirements in mining companies. In addition, he has wide ranging experience in mergers and acquisitions within the mining industry.

Mr Rule was CFO at Galaxy Resources Limited from 2017 until it was taken over in 2021. His previous positions included CFO of Sundance Resources Limited, Paladin Energy Limited, Mount Gibson Limited and St Barbara Mines Limited. He is a Chartered Accountant (Fellow) and holds Bachelor of Commerce and Bachelor of Accounting degrees.

Non-Executive Director

Ms Dudley is an accomplished and safety-focused mining engineer with over 25 years of experience in the global mining industry. Her expertise includes merger and acquisition analysis, technical studies, major project experience and assurance, and managing annual reporting of Mineral Resources and Ore Reserves.

Ms Dudley has a Bachelor of Engineering Mining (Hons) (University of NSW), a Graduate Certificate in Technology Management (Deakin University), is a member of the Australian Institute of Company Directors and is a Fellow of the Australasian Institute of Mining and Metallurgy (“AusIMM”).

Ms Dudley’s prior experience as the Chief Operating Officer of TSX and NYSE listed Turquoise Hill Resources adds dimension to her portfolio which also includes the role of Senior Manager Strategic Mine and Resources Planning at Rio Tinto Ltd’s Oyu Tolgoi Mine in Mongolia and Mining Engineering positions at North Ltd’s Northparkes Mines, New South Wales. Ms Dudley’s has a background in underground mining which includes mass mining as well as contracting experience in developing and operating UG decline access mines in the Northern Territory, Queensland and Tasmania.

Managing Director / CEO

Mr Creagh is a mining engineer with over 20 years’ experience working for both contracting and mining companies at projects throughout Australia and overseas.  He most recently served as Chief Operating Officer of Northern Star Resources Limited.  Prior to becoming COO in 2018, Mr Creagh held various senior positions within Northern Star, including GM Business Development, GM Strategy & Growth and Operations Manager.  Prior to working at Northern Star he was Operations Manager at Barminco Limited.

Mr Creagh has a Bachelor of Engineering (Mining) from University of Queensland and holds a Western Australian first class mine manager’s certificate.

Non-Executive Director

Ms Cutler is a professional geologist with over 18 years extensive mineral exploration and resource development experience in the Australian resources industry.

Ms Cutler holds a Bachelor of Science (Mining Geology & Mineral Exploration)(Hons) from the Western Australian School of Mines (WASM) and is a Member of the Australasian Institute of Mining and Metallurgy (AusIMM).

Beginning her career with Newmont and Atlas Iron in Western Australia, Ms Cutler went on to hold senior management roles with ASX-listed companies, Saturn Metals (ASX: STN) and Aruma Resources (ASX: AAJ).

Ms Cutler is currently the Chief Executive Officer of Killi Resources (ASX: KLI), a gold and copper explorer with key projects in the Charters Towers and Mt Rawdon regions in Queensland.

Chief Development Officer

Mr Czerw is a highly experienced geoscience professional with over 25 years of significant senior management experience in Australia and overseas. He has extensive exploration, project development, surface and underground operational experience with a strong bias towards team building.

His previous roles include General Manager for Tanami Gold NL, Director of Operations for Tectonic Resources Ltd and Chief Geologist for Emperor Gold Mining Company Ltd.

Chief Financial Officer/ Joint Company Secretary

Mr Warden has over 30 years’ experience in leading the finance, strategy and business development for ASX listed companies. His previous roles include CFO of Iluka Resources Ltd, Resolute Mining Ltd and most recently Core Lithium Ltd. Mr Warden began his career in corporate finance and restructuring with KPMG and EY.

He is a Chartered Accountant and holds an MBA (Executive) from the Australian Graduate School of Management.

Chief Geologist

A Geologist with twenty years industry experience with exposure to gold and base metals in operations, and brownfields exploration projects.

Ms Farrell has past experience with various small-medium sized producers and has also held senior roles with Barrick, Gold Fields, Red 5 Limited and Emmerson Resources.

Technical strengths include narrow vein gold, grade control systems and processes, near-mine exploration and applying a strategic approach for building the exploration-resource pipeline.

Ms Farrell holds a Bachelor of Applied Science (Geology) from La Trobe University and a Master of Business Administration from Deakin University. She is also a Member of the Australian Institute of Geoscientists, and Society of Economic Geologists.

General Manager – People & Culture

Ms Blacklock is a Human Resources executive with over 25 years of experience in leading people and culture activities within the resources industry.

Prior to joining OBM, she held senior leadership roles including General Manager – People and Learning at Macmahon, HR Manager – International Projects at Bis Industries, Region HR Manager – Asia Pacific with Baker Hughes, and founded a successful HR consultancy, HRwise providing HR advisory services to the resources industry within Australian and internationally. She holds a Graduate Diploma in Human Resources Management and BSc in Anatomy & Psychology.

General Counsel

Mr Sanders is a senior corporate lawyer and Company Secretary with 30 years’ experience in legal, commercial and corporate governance roles in international resources companies and top tier law firms.

His most recent roles have included General Counsel & Company Secretary at Allkem Limited and Leo Lithium Ltd. Mr Sanders began his legal career working in the corporate and M&A departments of international law firms Herbert Smith Freehills, Clifford Chance (London) and King & Wood Mallesons.

He holds an honours degree in law from the University of Western Australia and is a Graduate of the Australian Institute of Company Directors.

Maintenance Planner

After being made redundant from my previous company, I came across OBM. During the interview process, the Superintendent clearly outlined the company’s values and goals—it felt like a great opportunity, and I knew I wanted to be part of it.

I enjoy working at OBM because of the people. They’re a great team who support each other and share their experience and knowledge openly. Recently, I was given an internal opportunity to join the planning department—a perfect step for my career growth. The fact that OBM provides new opportunities to existing staff shows how much they value and invest in retaining good people.

The OBM value that resonates most with me is “Accept the Challenge to Create Value.” I’m eager to learn new skills and take on challenges that add value to the work I do. 

Lab Tech

OBM is a great place to upskill—I’ve been able to learn and progress throughout my time here. I started in March 2022 as a Lab Technician, and the working environment has been fantastic, with a very supportive management team. I’m grateful to be part of OBM and excited to continue growing within the processing department.

What I enjoy most about OBM is the people—I work with an amazing team! My role has given me the chance to learn more about processing, tanks, and the gold room while working alongside great colleagues. This hands-on experience has helped me develop new skills and gain confidence in my role.

As a Lab Technician, my day-to-day tasks include taking and pressing samples, reading gold room and tank samples, sizing, and more. Because much of my work is done independently in the lab, safety is a fundamental part of my role.   Therefore, the OBM value that resonates most with me is “We Target Zero Harm.” I make sure every task is done safely, and as a team, we look out for each other to ensure everyone is safe all the time.

Coreyard Coordinator

I joined because it’s an exciting time with a lot of growth and opportunity throughout the company. I felt a real sense of community within the workforce and there seemed to be a strong focus on employee development.

A normal day at Davyhurst consists of organising the Feld Technicians to best aid our Geologists with processing of diamond core. I then assist with sample preparation and dispatch procedures, as well as ensuring data is captured accurately and in a timely manner.

What I enjoy about OBM is the opportunities for growth and progression that aren’t limited to your role. I also enjoy the fact we have a diverse workforce with a healthy social aspect to life on site. The regular use of the sports facilities for football etc. help to strengthen bonds with work colleagues.

The value that resonates most with me is ‘Team with a Winning Mindset’, specifically that every person is important to team success’ .  At OBM everybody plays their part in contributing to the Company hitting targets no matter how small their tasks – each person is as important as the next.

Underground Mine Manager – Sand King

I joined OBM because it was recommended by a colleague and as I learned more about the Company, I could see it was in a phase of transformation and growth – an opportunity I wanted to be part of. 

A typical day in my role involves coordinating with our contractor partners and technical teams on schedules and plans, then heading underground to see how those plans are translating in practice. The role involves problem solving, critical thinking and finding solutions to overcome production bottle necks – always with a strong focus on safety and achieving our targets. 

The team environment at OBM is positive, energetic and focussed on how we optimise our assets and develop our people. We are well supported by management and the corporate team, which allows us to draw on diverse expertise and make informed decisions that directly impact the success of our people and the company. 

Pursue Solutions with Intent is the value that resonates most with me.  It inspires a mindset of challenging the status quo – when faced with a problem, we don’t settle for “that’s how it is”.  Instead, we embrace the challenge, problem solve and find solutions that drive the success of our operations.