Advisory, Engineering, Feasibility Studies & EPC Contract Delivery
Feasibility Studies
Mining feasibility studies that give boards the confidence to commit capital. Pre-feasibility and bankable feasibility, technically rigorous and commercially grounded.
Get In TouchWhat sets Harrington O'Sullivan apart:
Principal-Led Delivery
Your project led by the company principal.
Proven in Hard Environments
Five countries. Twenty years. Real outcomes.
Senior Representation
Ministerial access backed by engineering credibility.
What sets Harrington O'Sullivan apart:
A mining feasibility study is the foundation of every investment decision. Get it wrong and boards hesitate, capital stalls, and projects lose momentum. We deliver pre-feasibility and bankable feasibility studies built for the scrutiny of investors, lenders, and boards. Technically rigorous, commercially grounded, and delivered to investment-decision standards.
Every study is led by the principal. No layers between you and the engineer doing the work. We have delivered mining feasibility studies across critical mineral projects in Australia and Sub-Saharan Africa, in remote and demanding environments where assumptions get tested fast.
Every study is led by the principal. No layers between you and the engineer doing the work. We have delivered mining feasibility studies across critical mineral projects in Australia and Sub-Saharan Africa, in remote and demanding environments where assumptions get tested fast.
What Your Feasibility Study Delivers
Every mining feasibility study we deliver is structured to move your project from evaluation to action. These are the core outputs.
Capital and Operating Cost Accuracy
Cost estimates built from first principles, not benchmarked from comparable projects and adjusted. Procurement, logistics, and remote-site realities factored in from the start.
Investment-Grade Technical Foundation
Engineering, process design, and infrastructure requirements defined to the level of detail boards and lenders require before committing capital.
Risk Identification Before It Costs You
Technical, commercial, and regulatory risks identified and quantified during the study, not discovered during construction. Risk registers built for action, not compliance.
Clear Path From Study to Execution
We structure every deliverable to feed directly into the next project phase, whether that is detailed design, procurement, or construction planning.
Our Services
Discuss Your Project
Tell us about your project and we will be in touch directly. No forms, no sales team.
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Why Harrington O'Sullivan
Principal-Led Delivery
Every project gets principal level direct involvement, thus reducing overhead slippage with focused deliverable outcomes.
Proven in Hard Environments
From the Pilbara to the DRC, we've delivered in environments where failure carries real consequences. Twenty years, five countries, no excuses.
Senior Representation
We don't just deliver projects. We sit at the table with regional stakeholders when projects need support to progress.
FAQ
Frequently Asked Questions
Common questions from project owners and boards commissioning a mining feasibility study.
What is the difference between project controls and project management?
A pre-feasibility study (PFS) evaluates whether a project is technically and commercially viable at a conceptual level. A bankable feasibility study (BFS) takes that further with detailed engineering, refined cost estimates, and the level of rigor lenders and investors require to commit capital. We deliver both.
Who leads the feasibility study?
Our principal leads every study directly. The person you brief is the person who delivers the work and presents the findings to your board.
What commodities and project types do you cover?
Our focus is critical mineral projects for growth-stage mining & infrastructure projects in Australia and Sub-Saharan Africa.
How does the feasibility study connect to the next project phase?
Every study is structured to feed directly into detailed design, procurement, or construction planning. We stay involved through the build if required.
Can you deliver feasibility studies for remote or international projects?
Yes. We can deliver studies in remote environments across an international environment. We understand the logistics, infrastructure, and regulatory realities that remote projects face.
Ready to Commission a Feasibility Study?
Talk to us about your project controls. No intake forms, no sales team. Every conversation starts with the principal.