METSIM® · Gold Processing
Where your cyanide consumption really goes
Cyanide gets tied up in far more than gold leaching. Chemical equilibrium modelling in METSIM® shows where it's actually going — and what to do about it.
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For mines & processing plants seeking step changes in performance
Work with expert engineers who understand operational pain — and know exactly what it takes to move the needle.
Trusted by leading mining & minerals-processing operations
What we do
Treo Group is an independent mining consulting company in South Africa, delivering mining consultancy services to mines and minerals-processing operations. Every engagement — an audit, a software deployment, or a full operational-improvement programme — is designed to deliver a measurable step change. We start by diagnosing the real constraint before we fix it.
We solve the problems that keep plant managers and engineers up at night — starting with an audit that diagnoses the real issue before delivering a measurable fix.
How we work →The world's most capable process-simulation platform for metallurgical and minerals processing. Licences, custom models, training, and audits of existing simulations.
Explore METSIM® →Two platforms built for mining operations: MetalTech business intelligence to digitise your plant, and an ISO 45001 toolkit to digitise your OHS audit lifecycle.
See the platforms →Track record
Treo Group has delivered end-to-end mining projects across South Africa and Africa — technology deployment, civil and mechanical works, control & instrumentation (C&I), operational technology, and change management — from concept through commissioning, optimisation and adoption.
Full drill-fleet retrofit and transition to tele-remote autonomous drilling at a Tier 1 open-cast mine in South Africa. Case study →
Vendor selection, installation, commissioning and adoption of a Level 9 collision avoidance system across a Tier 1 mining fleet, aligned with DMRE requirements. Case study →
Civil and mechanical delivery, commissioning and test work for large-scale ore sorting of ROM material at a major African open-cast mine. Case study →
Civil design and construction of a new elevated penstock at the primary tailings storage facility of a large South African platinum mine.
Audit, review and managed refurbishment of Larox filters at two platinum concentrators — vendor selection, execution and financial oversight.
Design, manufacture and fleet-wide deployment of communication housings and technologies on heavy mining equipment.
Development and deployment of a digital logbook recording machine movements and diesel usage across all mining equipment for revenue-service compliance.
Deployment of an in-pit orebody and grade-management tool — technical guidance, training and operational readiness.
Driver monitoring, fatigue management and licence control fitted to a 600+ light-vehicle fleet at a Tier 1 mining operation.
Traffic management audits aligned with EMESRT and ICMM standards, improving safety and guiding on-site safety-technology implementation.
Development of a remotely controlled mobile network unit improving in-pit operational-technology coverage.
Validation and fleet deployment of HME machine-data trending to reduce downtime and support preventative maintenance.
Assembly, training, change management and asset health monitoring for a new P&H 2350 front-end loader.
Upgraded sensor and monitoring technology across platinum concentrator and smelter facilities for real-time process data.
Multi-year evaluation of optimal operating parameters for fine and coarse particle flotation at a Tier 1 platinum concentrator.
FMS data auditing and intensive in-cab operator training — a 2% production gain within six months.
Control and instrumentation with structured change management for short-interval control in mining operations.
Project tracking and management returning a TZ55 shovel to production on schedule and within budget.
Fleet-wide deployment of tyre-pressure monitoring across rigid-body haul trucks, including technician training.
Evaluation, project and change management of drill management systems on blast-hole rigs in Limpopo, South Africa.
Full project references and client contacts are available on request. Talk to us about your project →
How we work
We get to grips with your operation, the performance gap you're seeing, and the outcome that would matter. No pitch — just clarity on the problem.
Our engineers examine the plant, the data, and the process to isolate the true constraint — not the symptoms — and quantify the opportunity.
We design and deliver the fix — an improvement programme, a METSIM® model, or a technology deployment — built for your flowsheet and your team.
We track the result against the baseline, hand over the capability, and agree whether ongoing support adds value. Wins are systemised, not lost.
How we deliver
Every engagement runs through the same disciplined delivery framework — from technical discovery to closeout, with maintenance support beyond. Tap a phase to see what happens inside it.
METSIM®
METSIM® models comminution, heat and material balances, and dynamic plant behaviour for metallurgical and minerals processing. We supply licences, build models for your specific flowsheet, and provide training and technical support — typically responding within 48 hours.
Select only the simulation tools your operation actually needs.
Realistic comminution, heat balance, and dynamic behaviour.
Connects mine data, design, equipment sizing, and operating costs.
Links external thermodynamic engines for deeper modelling.
Technologies
MetalTech integrates data from historians, lab systems, weighbridges, ERPs, and manual sources into a single platform — automating metal accounting and surfacing the insights that drive measurable performance improvement.
An offline-first progressive web app purpose-built for mining OHS, fully aligned to ISO 45001:2018 and integrating MHSA requirements — so safety teams can audit, manage, and report directly from the field, with or without connectivity.
Case studies
A selection of programmes Treo has delivered inside live mining operations — from automation and safety technology to processing and instrumentation.
Automation · Change management
Full fleet retrofit across two technology vendors and the organisational shift from in-pit drilling to tele-remote control — a six-year transformation delivered end to end.
Read the full story →Safety technology · CAS
Vendor selection, phased rollout, DMRE alignment, and the operator adoption programme behind one of the largest CAS deployments in South African mining.
Read the full story →Ore sorting · Test work
Civil and mechanical delivery, live test work, and structured cost-benefit validation — taking ore sorting from concept to operational reality in a producing mine.
Read the full story →Insights
Cyanide gets tied up in far more than gold leaching. Chemical equilibrium modelling in METSIM® shows where it's actually going — and what to do about it.
Read more →Bacteria oxidise sulphides to free refractory gold. The concept is simple; the circuit is sensitive — and that's where modelling earns its keep.
Read more →Collision avoidance systems rarely fail on detection range. They fail when operators stop trusting them. The human side deserves more attention.
Read more →Contact us
Talk to one of our engineers. No sales pitch — just a direct conversation about your operation and what you're trying to achieve. We reply within 2 business days.