Contract Mining
Services in Ghana

Turnkey open pit mining using our fully owned fleet ,
overburden stripping, ore excavation, loading, and haulage

Open pit mining is capital-intensive, logistics-intensive, and technically complex. For many operators, contracting the mining function to a specialist is the most effective way to achieve consistent ore delivery without absorbing the full burden of fleet ownership, maintenance overhead, and workforce management.

Minerra Ghana Limited provides turnkey contract mining services covering the complete production cycle: mine preparation, overburden stripping, topsoil management, ore excavation, grade control support, loading, and haulage , executed using our own excavators, drill rigs, and dump trucks.

What Contract Mining Means in Practice

Contract mining, in its most effective form, is more than equipment hire with an operator. It is the delegation of a critical production function to a specialist who brings not just equipment but mining knowledge, fleet management expertise, HSE capability, and the operational discipline to deliver consistent production performance against an agreed mining rate and schedule.

When Minerra Ghana takes on a contract mining scope, we are accountable for more than moving tonnes. We are accountable for the sequence in which material is mined, the accuracy with which ore and waste boundaries are respected, the safety record of every person working within the mining area, and the maintenance condition of every machine in our fleet. That accountability is what distinguishes a genuine contract mining partner from a simple equipment provider. For international mining companies managing multiple operating sites, mid-tier operators optimising their cost per tonne, and junior explorers who have never managed a production mining operation before, this single-point accountability has real commercial and operational value.

Our Contract Mining Service Scope

Mine Preparation

Before production mining commences, the mining area requires preparation. Minerra Ghana’s mine preparation scope includes topsoil stripping and stockpiling for rehabilitation use, vegetation clearance, haul road construction and maintenance, sump excavation and dewatering sump management, and establishment of the waste dump and ore stockpile infrastructure required to support the production phase. Thorough mine preparation establishes the conditions for efficient production mining , it is not an activity to be rushed or cut short in the interest of reaching first ore ahead of schedule, as the consequences of inadequate preparation compound throughout the mine’s production life.

Overburden Stripping

Removal of overburden , the non-mineralised waste material overlying the orebody , is often the largest single material movement task in a surface mining operation. Minerra Ghana manages overburden stripping sequencing in alignment with the short-term mine plan to expose ore for mining while managing waste dump construction, haul distance, and equipment utilisation. Stripping ratios, bench heights, and pit geometry are managed in consultation with your mine planning team.

Ore Excavation and Grade Control Support

Ore excavation is the highest-value and highest-precision component of the contract mining scope. Minerra Ghana’s excavation teams work from mine geological plans and ore block outlines to excavate within the designed ore boundaries, minimising dilution and ore loss. Our supervisors are trained to recognise ore-waste contacts and to communicate promptly with the client’s geologists when contacts deviate from prediction. Grade control support , including material classification, selective mining decisions, and ore routing to stockpile or processing , is managed in close coordination with your geological and metallurgical teams. The integration between the contractor’s mining operations and the client’s grade control function is critical to achieving target ore quality and metal recovery.

Loading and Haulage

Minerra Ghana’s excavators load ore and waste material directly into our dump trucks for transport to designated dump, stockpile, or ROM pad locations. Shovel-truck matching , the coordination of excavator cycle time and truck payload with the number of trucks in the haulage circuit , is managed to maximise fleet productivity and minimise queuing time at the dig face. Haul road conditions directly affect truck payload achievement, tyre life, and fuel consumption. Minerra Ghana includes haul road maintenance in our contract mining service, applying road grading, watering, and drainage maintenance to keep haulage conditions within the parameters assumed in the fleet productivity model.

Waste Dump Management

Construction and management of waste rock dumps, including lift sequencing, dump face management, crest and batter maintenance, drainage establishment, and progressive rehabilitation where required by EPA permits. Waste dump stability and environmental management , particularly dust control and stormwater interception , are managed as part of the mining service.

Mine Dewatering Support

Management of pit dewatering , pumping, sump management, and water discharge , to maintain working conditions in the active mining areas. Ghana’s high seasonal rainfall makes dewatering an operationally significant activity at many pit operations, and inadequate dewatering management is a common cause of lost production and unsafe working conditions.

Contract Structures Minerra Ghana Operates Under

Different mining operations and project stages suit different contract arrangements. Minerra Ghana operates flexibly under the following principal contract structures:

Unit Rate (Schedule of Rates)

Payment per unit of work , rate per tonne mined for ore, rate per BCM for waste stripping. The most common structure in the Ghanaian contract mining market.

Owner Operator Model

Minerra Ghana provides personnel and management to operate client-owned equipment. The client retains ownership of capital assets while we provide operational expertise.

Reimbursable Cost Plus Fee

Actual operating costs paid by the client plus an agreed management fee. Common for early-stage projects where conditions are less certain.

Hybrid and Incentivised Contracts

Performance incentives tied to production targets, cost per tonne benchmarks, or safety milestones for longer-term engagements.

For junior mining companies approaching first production, the decision to contract the mining function rather than operate it directly is often the right one  and often made too late.

Mining Fleet and Equipment Capability

Minerra Ghana’s contract mining fleet includes hydraulic excavators suited to ore and waste excavation across the bench heights typical of Ghanaian open pit operations, dump trucks matched to the excavator loading capacity for efficient haulage cycles, and drill rigs for blast-hole preparation. The fleet is maintained to OEM specifications by our in-house maintenance team using manufacturer-recommended service schedules, genuine and approved replacement parts, and a planned maintenance system that schedules major interventions to minimise production disruption.

Fleet availability , the proportion of scheduled operating hours during which equipment is available to work , is the primary performance metric we track and report. Our target mechanical availability rates are set to the standards expected by major mining operators and are reported transparently in our monthly production summaries.

Contract Mining Across Ghana’s Mining Landscape

Ghana’s principal open pit mining operations are distributed across several geological domains, each with its own production characteristics. The birimian greenstone gold belts running through the Ashanti, Western, and Eastern Regions host the majority of the country’s active gold mines. The Tarkwa district’s palaeoplacers present distinct mining challenges compared to the shear-hosted and intrusion-related deposits of the Ashanti belt. Bauxite and manganese operations in the Brong-Ahafo and Western Regions operate in different geological and logistical conditions again.

Minerra Ghana’s experience across these domains means our contract mining approach is calibrated to the actual conditions your operation faces , not applied uniformly regardless of geology, seasonality, or infrastructure constraints.

Contract Mining FAQs

What is contract mining and how does it differ from owner-mining?

Contract mining involves engaging a specialist contractor to manage and execute the mining operation on behalf of the mine owner, using the contractor’s own or owner-provided equipment and workforce. Owner-mining involves the mine operator directly managing and staffing the mining operation with its own resources. Contract mining is typically preferred when operators want to focus internal resources on geology, processing, and project management, reduce capital expenditure on fleet acquisition, or access operational expertise that is not available in-house.

What mining commodities does Minerra Ghana’s contract mining service cover?

Minerra Ghana’s contract mining service is applicable to all open pit surface mining operations. While gold mining represents the dominant activity in Ghana, our equipment and operational capabilities are suited to bauxite, manganese, iron ore, and other surface-mined mineral commodities.

Does Minerra Ghana own its contract mining equipment?

Yes. Minerra Ghana owns its excavators, dump trucks, and drill rigs outright. Our owned fleet is maintained to OEM specifications by our in-house maintenance team. This means we mobilise without the delays and uncertainties associated with third-party equipment hire, and our clients benefit from a contractor whose equipment availability is managed as an internal responsibility.

How does Minerra Ghana manage grade control during ore excavation?

Grade control management during ore excavation is conducted in close coordination with the client’s geological and metallurgical teams. Minerra Ghana’s excavation supervisors work from mine geological plans and ore block outlines, mining within designed boundaries and communicating in real time with site geologists when ore-waste contacts deviate from prediction. Material classification, selective mining decisions, and ore routing are managed to minimise ore dilution and ore loss.

What is a stripping ratio and how does it affect contract mining costs?

Stripping ratio is the volume or mass of waste material that must be removed for each unit of ore extracted. A high stripping ratio means more total material movement per tonne of ore , more fuel, more equipment hours, more personnel time, and therefore higher mining cost per tonne of ore. Minerra Ghana’s contract pricing reflects the actual stripping ratio applicable to each phase of the mine plan, and we work with clients on mining sequence planning to manage the timing of high-stripping phases.

How quickly can Minerra Ghana mobilise for a new contract mining project?

Mobilisation timelines depend on the project scope, site location, and the equipment configuration required. Because Minerra Ghana operates owned equipment with a standing maintenance team, our mobilisation lead time is significantly shorter than contractors dependent on third-party fleet hire. Contact us with your project details and proposed start date for a specific mobilisation timeline.

What contract structures does Minerra Ghana operate under?

Minerra Ghana operates under unit rate (schedule of rates) contracts, owner operator arrangements, reimbursable cost plus fee contracts, and hybrid incentivised structures. The appropriate contract model depends on the project stage, geological certainty, and the client’s preference for risk allocation. We are open to discussing the structure that best serves your project’s commercial requirements.

How does Minerra Ghana report production performance to clients? How does Minerra Ghana report production performance to clients?

Monthly production reports provide detailed accounts of tonnes mined (ore and waste separately), equipment availability and utilisation, fuel consumption, haul cycle analysis, and maintenance performance. Reports are formatted for direct input into client management reporting systems. Daily and weekly summary reporting is also provided for active operations.

Can Minerra Ghana manage haul road construction and maintenance as part of the contract mining scope?

Yes. Haul road construction and ongoing maintenance , including road grading, watering for dust suppression, drainage maintenance, and pothole repair , is included in Minerra Ghana’s standard contract mining scope. Road quality directly affects truck payload achievement, tyre wear, and fuel efficiency, so maintaining haul roads to specification is a priority within the operational management of the contract.

How does Minerra Ghana manage waste dump construction?

Minerra Ghana’s waste dump management includes lift sequencing, dump face slope management, crest and batter maintenance, drainage channel construction and upkeep, dust suppression, and progressive rehabilitation where required under EPA permit conditions. Waste dump stability and environmental management are integrated into the operational management of the mining contract.

Does Minerra Ghana provide mine planning services?

Minerra Ghana’s primary expertise is in the operational execution of mining against an approved mine plan. We work alongside and in support of the client’s mine planning function rather than replacing it. For clients that need mine planning support, we can assist in identifying appropriate mine planning consultants in Ghana’s professional services market.

What happens if ground conditions are significantly different from what was anticipated?

Unexpected ground conditions , harder or softer rock than predicted, water ingress, faulting, or geological structures , are addressed through prompt communication with the client’s technical team and, where necessary, an adjustment to the blast design, mining sequence, or equipment configuration. Material variations that affect production cost are documented and addressed through the contract variation management process agreed at contract award.

Can Minerra Ghana work alongside the client’s own mining team?

Costs depend on facility scale, scope of services, monitoring intensity, reporting obligations, and site location. We provide detailed proposals based on a site assessment or documentation review. Contact us at info@minerra.com.gh to initiate a scoping conversation.

Is Minerra Ghana able to provide contract mining services in remote locations?

Yes. Minerra Ghana has operational experience managing the logistical requirements of remote mine site deployments, including site accommodation, supply chain management, fuel supply, and personnel rotation. Remote site deployment logistics are factored into our mobilisation planning and contract pricing.

Contract MiningServices in Ghana