Mipac Main Automation Contracting (MAC): Single-Point Accountability for Automation-Intensive Mining Projects
Automation scope is one of the most complex and risk-prone elements of a major minerals processing project. When responsibility is fragmented across multiple vendors and disciplines, gaps appear – in scope, in interfaces, and in accountability. Mipac‘s Main Automation Contracting (MAC) service gives project owners a single, technically accountable partner for the entire automation scope, from front-end engineering through to commissioning and handover.
What is a main automation contractor?
A Main Automation Contractor (MAC) takes single-point responsibility for all automation, control, and electrical and instrumentation (E&I) scope on a project. Rather than managing multiple specialist vendors independently, the project owner engages a MAC to coordinate, integrate, and deliver the full automation package under one contract. Mipac acts as that accountable partner, with the in-house depth to deliver, not just manage.
What’s included:
- Automation scope definition, management, and delivery
- Control system design, integration, and programming (DCS, SCADA, PLC)
- Electrical and instrumentation (E&I) engineering
- Vendor management and interface coordination across all automation disciplines
- FAT, SAT, commissioning, and operational readiness support
- Documentation, as-built, and handover deliverables
Why it matters:
Fragmented automation scope is a leading source of project cost overruns and schedule risk. A MAC eliminates the gaps between disciplines before they become problems on site.
Reducing interface risk on complex projects
The interfaces between control systems, E&I, process, and civil disciplines are where automation projects most commonly go wrong. Mipac’s MAC model is built to manage these interfaces proactively, coordinating across vendors, resolving clashes early, and ensuring every automation element integrates into the wider facility design.
Key capabilities:
- Interface register management across all automation disciplines
- Cross-discipline engineering coordination (process, mechanical, civil, structural)
- Change management and scope control throughout the project lifecycle
- Risk identification and mitigation planning specific to automation scope
Why it matters:
Interface failures are expensive to fix in the field. Getting coordination right during engineering is what keeps projects on schedule and on budget.
Deep technical capability – Not just coordination
Mipac is an engineering company, not a project management firm. Our MAC teams include control engineers, E&I engineers, and automation specialists who do the technical work — not just oversee it. This means scope gaps get caught by engineers who understand the systems, not just tracked in a register.
What this means in practice:
- Control philosophy development and review
- Control system platform selection and configuration
- Functional safety (SIL) assessment and implementation support
- Alarm management and advanced process control integration
- Operational readiness and training support for site teams
Why it matters:
A MAC that can only manage scope, not interrogate it technically, adds coordination without adding value. Mipac’s depth means problems get solved, not just escalated.
When to Appoint a MAC
The MAC model is best suited to projects where automation scope is significant, technically complex, or involves multiple control system vendors. This includes new processing facility construction, major plant expansions, and brownfield control system overhauls where integration risk is high.
Mipac has delivered MAC engagements across copper, gold, nickel, and other mineral processing commodities in Australia, Africa and North and Central America.
Ready to discuss your project?
If you’re scoping a major minerals processing project and want to understand how a MAC model could reduce your delivery risk, talk to Mipac’s team.
