Services · Geology and mining engineering consulting in Indonesia

Thirteen consulting services, one independent team, reports that banks, exchanges and regulators accept.

ACALA’s geologists, engineers and economists work from exploration to closure: exploration programs, resource estimates, mine design and planning, valuations, due diligence, economics and studies. Independent by ownership, reporting under SNI, KCMI, JORC 2012, SAMREC and NI 43-101, and delivered in the same GEOVIA software your own team runs.

Deliverable finder: thirteen ACALA services, with the services behind the chosen deliverable highlighted You need: a drilling target · 3 services Reconnaissance Survey → Topography Mapping → Exploration
Start from the document you need and see which services produce it. Drag the handle: drilling target, resource statement, mine plan and reserves, bankable study, valuation, independent opinion.
GeologyExploration programs, mapping, structural analysis, targeting.
ResourceDrillhole data, domaining, variography, kriging, classification.
EngineeringOpen pit and underground design, drill and blast, ventilation.
PlanningStrategic and tactical plans, grade control, reconciliation.
EconomicsTechnical-economic models, valuations, cost benchmarking.
AssuranceDue diligence, audits, Competent Person reports, expert witness.
Haul truck and excavators in an open pit at sunset
Geology and mining consulting from exploration to production. Image from the GEOVIA brochure distributed by ACALA.

Thirteen services

Geology and mining engineering services

Each service has its own page with scope, method and examples.

Exploration field work01 · Exploration

Exploration Activities

Reviewing, designing and implementing exploration programs: targeting, remote sensing and geophysics, geochemistry, sampling and QA/QC, health and safety, audits.

Block model coloured by grade02 · Geology

Resource Estimate

Data validation, QAQC, domaining, exploratory data analysis, variography and estimation, with independent estimates suitable for public reporting.

Mineral project site03 · Valuation

Mineral Asset Valuation

Valuation from early exploration to production, transaction support, Competent Person reporting, techno-economic modelling, expert witness.

Project review on site04 · Assurance

Due Diligence and Project Reviews

Independent engineer reports, technical reviews for finance and M&A, risk assessments, audits, due diligence studies and litigation support.

Open pit design05 · Engineering

Open Pit Mine Design and Planning

Pit optimisation, cut-off strategy, life-of-mine plans and technical-economic models, transition studies, cost and productivity assessments.

Underground mine design06 · Engineering

Underground Mine Design and Planning

Mining method selection, geotechnical characterisation, life-of-mine optimisation, drill and blast, ventilation, equipment and manpower, cost benchmarking.

Mining blocks in a tactical plan07 · Operations

Planning and Optimization

Geological models that sharpen near-mine targets, grade control and reconciliation; geotechnical and geometallurgical modelling; mapping campaigns, audits and site training.

Surface mining activities schedule08 · Economics

Mining Economics

Technical economic models and asset, project and property valuations at every stage, built on market data, benchmark indicators and site visits.

Mining study visualisation09 · Studies

Mining Studies

Scoping, pre-feasibility and feasibility studies, technical studies for resource and reserve reporting and regulatory compliance, reviews and audits.

Geological map built from remote sensing and field mapping10 · Exploration

Reconnaissance Survey

The first pass over ground nobody has measured yet: field mapping, sampling and target generation that decide where a drilling budget is worth spending.

Survey instrument on a tripod above an open pit11 · Survey

Topography Mapping

Detailed surface and subsurface maps with elevation, contours and geological features, delivered in the format your planning software reads.

Three dimensional geological model with drillhole traces12 · Reporting

SNI/KCMI/JORC Standard Report

Auditable resource models reported to the code your stakeholders accept: SNI 4726-2019, KCMI and JORC 2012, with Competent Person sign-off.

Grinding mill in a mineral processing plant13 · Studies

Feasibility Study

Geological, technical and economic work run together, so the decision to proceed rests on one consistent model of risk and return.

When to call ACALA

Four moments in a project where an outside team pays for itself.

1Explore

Before the next drilling budget

Targets, program design and QA/QC decided before the rigs arrive.

Services

  • Exploration Activities: targeting, geophysics, geochemistry, program planning.
  • Resource Estimate: a first estimate that tells you where the value is.

Deliverables

  • Exploration program and budget; maiden resource statement.
2Study

When the project must be financed

A study a bank or exchange will read, with the economics to match.

Services

  • Mining Studies: scoping to feasibility.
  • Mining Economics and Mineral Asset Valuation: models and fair value.

Deliverables

  • Feasibility study, technical-economic model, Competent Person report.
3Operate

When the plan and the pit disagree

Design, schedule and grade control aligned with what the deposit actually does.

Services

  • Open Pit and Underground Mine Design and Planning.
  • Planning and Optimization: grade control, reconciliation, site training.

Deliverables

  • Life-of-mine plan, tactical schedule, reconciliation audit.
4Transact

When someone is buying, selling or lending

Independent, impartial, and mobilised to several sites at short notice.

Services

  • Due Diligence and Project Reviews; Mineral Asset Valuation.
  • Mining Studies for regulatory compliance and listing documents.

Deliverables

  • Independent engineer report, fatal flaw analysis, valuation opinion.

Why ACALA

Independent by ownership, practical by habit.

ACALA holds no equity in any project, so reviews and valuations are impartial. Our consultants qualify as Competent Persons, Qualified Persons and Specialists under the international codes, and they run the same GEOVIA software they teach, on Indonesian gold, nickel and coal projects.

Questions we get

Services FAQ

Which reporting codes can ACALA sign under?
Our consultants act as Competent Persons, Qualified Persons and Specialists under SNI, KCMI, JORC 2012, SAMREC and NI 43-101 for government and stock exchange requirements.
How long does a resource estimate or a study take?
It depends on the data. A resource estimate on a validated database typically runs a few weeks; a feasibility study is months. We give a schedule with the proposal, after seeing the data request list answered.
Do you work on site or remotely?
Both. Site visits are part of every valuation and due diligence, and mapping and grade control work happen on site. Modelling, planning and reporting are done from our office in Bekasi with your team online.
What do we get at the end?
The report, and the models, designs and schedules behind it in GEOVIA formats your team can keep working with. Training on those files can be added.
How do we start?
Send a short description of the project, its stage and what the report or study is for. We reply with a scope, a data request list and a timeline.

Next step

Tell us what the report is for. We will scope the work that gets you there.

A scoping call with a geologist or engineer, then a written proposal with scope, data request and schedule.

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