Software for metallurgists and metals accounting
Using modern cloud-based metallurgical accounting software, MAX4METS is changing the way metals accounting is done: auditable, transparent and aligned with the AMIRA P754 code of practice.
Unlock your metals accounting potential
Our cloud-based metallurgical accounting software reduces risk, improves reporting, ensures security and saves you money!
Metals accounting has evolved.
The MAX4METS Metallurgical Accounting System is a modern cloud-based software application designed to allow the recording, storing and retrieval of mineral processing data, plant operation and availability data, suitable for use across a wide range of commodities.
Why use MAX4METS?
- Reduce financial risk
- Supports compliance
- Improved reporting
- Removes complex tasks
- Provides traceability
- Improves security
- Accurate production data
- Easy reconciliation
Metallurgical management
Simplify your metals accounting processes and produce more accurate reports
The ultimate metals accounting solution.
MAX is the latest Australian mining technology that uses mass balance theories to streamline metal and mine production accounting. You will benefit from improved reporting, traceability and security while reducing financial risk and easily reconciling accounts for cost savings.
Take the guesswork out of metals accounting and maximise your business potential with MAX. Streamline complicated processes and increase the accuracy of your reporting with this powerful software.
Get started with MAX today for accurate metals accounting and open a new world of clarity and profitability.
Metallurgical accounting
Mining companies worldwide are under pressure to improve corporate governance with respect to metal accounting from mine to product
Metals accounting is crucial for:
- Corporate governance Auditable production and loss figures are part of the governance that ESG reporting depends on. Weak controls are a risk and could affect your licence to operate.
- Accurate measurements Accurate measurement of production drives unit sales and leads to more revenue.
- Variables and inefficiencies MAX identifies production variables and inefficiencies in mining production. Identify shortfalls, improve processes and reap the rewards.
- Troubleshooting Use MAX to troubleshoot metallurgical process issues, minimising costly losses.
- Built by people who know mining Our professional software engineers have real experience in the mining sector. Software for mining, by miners.
- Data analysis Budgets, forecasts and actual results side by side, so variances show up during the month, not after it.
Choosing metallurgical accounting software: ten questions to ask
Metallurgical management and accounting made easy
How it works
Capture
Capture and validate critical metallurgical data including recovery, downtime and consumables.
- Spreadsheets
- Assay
- Plant
- Mobile

Manage
Centrally manage all mining data in a centralised, secure data store.
Database

Report & analyse
Produce shift, weekly and monthly processing and recovery reports. Analyse performance and optimise the processing outcomes.
Microsoft Excel is not ESG or AMIRA compliant
Why your current process is flawed
We have seen your massive spreadsheets for plant management.
Metallurgical accounting is typically done in a single Excel workbook with many sheets, leading to inaccuracy, duplication of effort, lack of transparency and problems with auditability.
Excel is not ESG compliant!
The problem with using Excel for metals accounting:
- Excel can easily be manipulated
- Insecure and impossible to audit
- Does not allow multiple users access
- Rarely integrates with management information systems
- Rapidly loses traceability to source data
- Possesses serious governance limitations
The solution
MAX4METS for metallurgical accounting
The Australian mining industry is highly competitive.
Companies in this sector need to be able to guarantee compliance, traceability and security while also reducing financial risks and improving reporting capabilities. Managing financial and compliance risk associated with metals and mine production is a daunting task.
Your company needs to stay on top of the latest technology trends and keep up with the competition. Metals accounting has evolved. It is not about crunching numbers anymore, it is about making sure you have the best accounting systems available to reduce risk and increase efficiency.
MAX is a cloud-based software application and the perfect solution for any mining company looking for an advanced accounting system that supports compliance, traceability, security and improved reporting. Take control of your business's financial operations with confidence. Get MAX!
Designed around the AMIRA P754 code of practice
The industry standard for accurate, auditable and transparent metal accounting
The AMIRA P754 Code of Practice for Metal Accounting sets the standard for reporting mineral production. MAX supports its principles directly, which also underpins the ESG governance your board and auditors now expect.
See how MAX supports each of the ten AMIRA P754 principles
Centralised, auditable data management
One database, full history, no orphaned spreadsheets.
Data integrity and reconciliation support
Import rules that catch unknown and missing data, and structured period reconciliation.
Transparent formula management
Every calculation is visible, named and explicit about how it rolls up.
Separation of roles and permissions
Enter, review and approve are different people with different rights.
Standardised reporting
The same figures on the shift report, the month-end pack and the board summary.
Support for continuous improvement
Trends, variances and downtime analysis in one place.
Features
Everything a metal accounting team needs, in one system
From data capture on the shift through to the reconciled month-end pack.
MAX covers the full metal accounting cycle: capture and validate plant data, hold it in one audited database, calculate balances with transparent formulas, and report with confidence. Built for metallurgists, process engineers, plant managers and technical services teams.
One auditable source of truth
Every measurement, assay and adjustment lives in a secure relational database with a full audit trail, not in a spreadsheet on someone's desktop.
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MAX replaces the sprawl of monthly workbooks with one database. Each value records who entered it, when, and which import or worksheet it came from, and changes made through the application are logged with their old and new values, so you can always answer "what did we report, and why?".
- Who entered or changed each value, and when
- Every value linked to the import or worksheet session it came from
- Change log of edits with previous and new values
- Adjusted values kept alongside the original measurement
- Multi-user access with conflict detection
- Lock dates that protect reported periods from later edits
Capture data from every source
Import assays, plant readings, survey results and downtime from spreadsheets, laboratory files and plant system exports, with import rules that catch problems on the way in.
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Reusable import definitions map your existing spreadsheets, laboratory files and plant system exports onto MAX measure points, and can collect files automatically from FTP servers, network shares and SharePoint. Worksheets cover the readings people enter by hand.
- Excel and CSV import with saved column and row mappings
- Automatic collection from FTP, SFTP, network shares and SharePoint
- Rules for unknown, missing and below-detection values
- Entry worksheets for shift readings and stock takes
- Numerical, categorical, text and file custom fields
- Imports for budgets, downtime and bullion as well as plant data
Transparent formula management
Metal balance calculations are defined as named formulas that every user can inspect, so there is no hidden logic behind a reported number.
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Recoveries, contained metal, moisture corrections and consumable rates are all expressed as formulas held in the system, grouped into categories you define and tied to a unit of measure. Each formula states how it rolls up from shift to month, so an auditor can trace any figure on a report back to its inputs.
- Named formulas grouped into categories such as leach, elution or reagents
- Explicit roll-up rules: aggregate then evaluate, or evaluate then sum
- Sum, average and weighted-average aggregation
- Overrides per plant configuration, optionally with start and end dates
- Editor with autocomplete, dependency tree and circular-reference checks
- Functions for budgets, inventories and stock balances
Metal balance and reconciliation
Track tonnes, grades and contained metal through every stage of the plant, keep stockpiles and in-circuit inventories up to date, and reconcile against measured and surveyed figures.
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MAX ties feed, product, tailings and inventory together through measure points, formulas and inventory movements, so the metal accounted for in each period can be compared with what was measured. Reconciliation sessions record the original and reconciled figures side by side.
- Tonnes, grades and contained metal for every measure point
- Stockpile and in-circuit inventories with wet and dry mass, moisture and assays
- Stock surveys that true up book inventories
- Period reconciliation that keeps original and reconciled values
- Budgets, forecasts and variance analysis
Downtime and delay accounting
Record planned and unplanned delays against equipment and shifts, then report availability, utilisation and where the lost hours went.
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Every stoppage is logged against its equipment, its cause and its duration. Downtime feeds directly into availability and utilisation reporting, so throughput conversations start from the same numbers the operators entered.
- Plant states and categories configured to your plant
- Time usage model: operating, delay, standby, planned and breakdown
- Availability and utilisation calculated for any period
- State workflows that control which changes are allowed
- Delay logs imported from spreadsheets or other systems
- Downtime tables, Pareto-style charts and dashboards
Shift, daily, weekly and monthly reporting
Standardised production reports and interactive dashboards are ready as soon as the data is in, with no spreadsheet assembly required.
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Period reports are generated from the same formulas that drive the balance, so the daily report, the month-end pack and the board summary never disagree. Dashboards let metallurgists explore trends without exporting anything.
- Reports for any period you define: shift, day, week, month, quarter or year
- Draft and approved reports, with preliminary and final versions
- Export to PDF, Word and Excel
- Distribution lists for email, in-app notifications and Microsoft Teams
- Dashboards with charts, grids, pivots and filters, built in the application
- Automatic generation of reports as each period ends
Bullion, concentrate and product tracking
Track gold and silver bars, concentrate loads and product containers from pour or loading through to dispatch, and issue approved certificates of analysis.
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From the gravity circuit to the gold room, or from the bagging plant to the truck, MAX tracks each bar, bag, container or load with its weights and assays, groups them into pours, batches and shipments, and keeps a record of every transfer.
- Parcels and batches configured for your products: bars, bags, containers, loads
- Wet and dry mass, moisture and assays for every parcel
- Batch approval before figures are used
- Transfers that record where each parcel came from and went to
- Certificates of analysis generated, approved and numbered
- Shipments and consignments for product leaving site
Roles, permissions and security
Separate data entry, review and approval across roles, with single sign-on through your Microsoft identity and a log of what users do.
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Segregation of duties is built in. Operators enter, metallurgists review, and managers approve, each with permissions scoped to what they need. MAX signs users in through Microsoft Entra ID, so your existing accounts, groups and sign-in policies apply.
- Role-based permissions down to individual types, records, fields and menus
- Single sign-on with Microsoft Entra ID, using your own sign-in policies
- Active Directory and Entra groups mapped to MAX roles
- User activity log of sign-ins, commands and changes
- System log of errors and warnings
- HTTPS everywhere, with TLS for file transfers and email
Site map and plant model
Model your site's equipment, measure points and data categories once, then use that structure everywhere data is captured and reported.
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MAX holds a structured model of your operation: equipment, measure points and the categories of data you collect, with plant shown on a map of the site. That model drives the import mappings, the downtime log and the reporting hierarchy, so a new circuit or stockpile is added in one place.
- Equipment hierarchy with categories, classifications, groups and models
- Measure points for every stream, tank and stockpile, nested as needed
- Data categories that organise what is collected and calculated
- Plant plotted on road, satellite or hybrid maps
- Separate sites linked so product can move between them
Approvals, period locking and tasks
Approve reports, batches and certificates through defined steps, lock reported periods against change, and track follow-up work as projects and tasks.
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Month-end is a sequence of steps, not a scramble. MAX records who approved each report, batch and certificate, lets administrators lock periods that have been reported, and keeps improvement work and investigations as projects and tasks assigned to the right people.
- Draft and approved period reports, with an approval log
- Preliminary and final report versions with their own distribution
- Approval of pours, batches and certificates of analysis
- Lock dates that protect reported periods
- Locked reconciliations once figures are final
- Projects and tasks with priorities, due dates and a My Tasks view
Commodities
Configured for the way your plant makes its product
The same system accounts for very different processes, because the plant model, formulas, products and reports are configured for each site rather than fixed in the software.
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Metallurgical accounting for gold operations
Account for gold and silver from mill feed to doré, across gravity, CIL or CIP, elution, electrowinning and the gold room, and for heap leach operations.
More about gold → -
Metallurgical accounting for rare earths
Account for rare earth oxide (REO) and NdPr side by side, with individual oxides as needed, through concentration and hydrometallurgical processing, with product tracked and certified to dispatch.
More about rare earths → -
Metallurgical accounting for base metal concentrates
Account for copper, zinc and lead concentrates and their precious metal credits, from mill feed through flotation to truck loads and shipments.
More about base metals →
Deliver proven value
Power your operation with MAX4METS
- Slash the hours spent wrangling spreadsheets and manual reconciliations
- Give stakeholders across the organisation instant visibility of metal accounting
- Increase confidence in metal balance reporting and compliance audits
- Leverage Nutava's deep process expertise and responsive support
Hosting
Cloud hosted by Nutava, or on your own infrastructure
MAX is a web application, so users only need a browser.
Where it runs is your choice: customers can choose Nutava's managed hosting on Microsoft Azure, or deploy it inside their own environment.
Recommended
Nutava cloud hosting
A dedicated, managed MAX environment on Microsoft Azure. You focus on the metallurgy, we handle the platform.
- Rapid setup: a complete MAX environment deployed within hours using proven automated processes
- Dedicated Azure App Service and Azure SQL database per customer, hosted in Australia by default
- Encrypted HTTPS access on your own vanity domain, for example yourcompany.max4mets.app
- Geo-redundant backups with 7-day point-in-time restore and monthly backups retained for six months
- Monitoring, proactive maintenance, updates and backups handled by Nutava
- Backed by the Microsoft Azure platform and its uptime commitments
Alternative
Self hosted
For operations with their own data centre or Azure tenancy, or with policies that keep production data in house.
- Runs on Windows Server with Microsoft SQL Server, on premises or in your own Azure subscription
- Single sign-on through your Microsoft Entra ID tenant
- Nutava provides the deployment package, installation guidance and remote deployment support
- Your IT team retains full control of infrastructure, patching and backups
- Same application, same features, same support agreement
Onboarding
Site model, measure points, formulas and imports configured with your metallurgists.
Support
Responsive support from people with real process plant experience, with annual support hours included.
Security and privacy
A documented security and privacy policy, data ownership retained by you, and breach notification commitments.
Company
Software for mining, built by people who have worked in it
MAX4METS is developed and supported by Nutava.
Nutava is an Australian company whose team combines professional software engineering with hands-on experience in mineral processing and mine site operations.
"MAX 4 METS", "Nutava Mining" and "Nutava Software" are registered trading names of the Australian incorporated entity Nutava Pty Ltd (ABN 37 608 322 087, ACN 608 322 087).
Our professional team has deep experience in software development and the mining industry. We acknowledge that every customer is different, and we pride ourselves on working with clients to find practical solutions for their unique challenges.
How we work with you
- Discovery. We walk through your flowsheet, data sources and reporting obligations.
- Configuration. Your site model, measure points, formulas and imports are set up with your metallurgists, not handed over as a blank system.
- Go live. Parallel running against your existing process until the numbers agree and the team is comfortable.
- Support. Responsive support from people who understand both the software and the plant.
MAX is one of the things Nutava builds. More about the company, its experience and its other work at nutava.com.au.
Blog
Featured posts
8 May 2023
What is Metallurgy?
Everything you need to know about metallurgy and its many applications, from alloys and processing techniques to the role of metals accounting.
Read more →
8 May 2023
Why is metallurgical accounting important to Australian gold mining companies?
Metallurgical accounting helps Australian gold miners track and optimise gold recovery, support financial reporting and meet governance obligations.
Read more →
Contact
MAX4METS is your total metals management and accounting solution
Want to know more? Request a demo today!
Speak to one of our professionals about how MAX can transform your metals accounting. We usually reply within one business day.

