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Technical Studies
The leader in Geology and Mining consultancy
Your trusted mining partner
Technical Studies

Technical Studies

At HDJ Indonesia, our Technical Studies provide a complete and systematic evaluation of mining projects, covering every stage from scoping and pre-feasibility to feasibility studies and due diligence. These studies form the backbone of responsible and profitable mining development, integrating technical, economic, and environmental considerations to ensure sound decision-making.

Our team of multidisciplinary experts conducts detailed analyses to determine the economic viability, technical feasibility, and environmental sustainability of each project. Through rigorous data interpretation, engineering design, and cost modeling, we deliver reliable insights that guide mine planning, investment strategies, and operational optimization.

In addition, our due diligence services assess all critical aspects of a project — including geological data validation, compliance with legal and environmental regulations, infrastructure evaluation, and financial risk assessment. This ensures that clients have a clear understanding of potential opportunities and risks before making major investment or acquisition decisions.

We also integrate Environmental Impact Assessments (EIA) and sustainability considerations into every technical study, aligning project development with national and international environmental standards.

With HDJ Indonesia, clients gain a trusted partner committed to delivering comprehensive, transparent, and technically robust studies that pave the way for sustainable mining operations and long-term project success.

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We are a group of experienced geology and mining professionals who have collaborated to deliver the best to the mining industry

HDJ team members hold “competent person” status for several local and international codes.
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Why Choose HDJ?

Your trusted mining partner

Exploration Support

Exploration plan optimisation, supervision (QA/QC)

Practical Mine Planning

Detailed, realistic mine plans tailored to operational conditions.

Robust Financial Modelling

Probabilistic approach reflecting impacts of price, OPEX, and CAPEX changes.

Beyond Reports

Execution support through short-term planning, monitoring, and control.

Problem-Solving Approach

Identifying bottlenecks and delivering innovative yet practical solutions.

True Partnership

Working with clients, not just for them, to achieve better outcomes.

Timely Delivery

On schedule, without compromising quality.

 Long-Term Relationships

Supporting clients even beyond project completion.

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HDJ Indonesia

We understand the requirement of the fast-changing mining world on the verge of next Industrial Revolution

3 Year

experience

Quality

of Products

After Sales

Service