Production basis
Mould volume, batches, operating hours, density, product mix and saleable output.
AAC investor guide · Supplier due diligence
Compare the plant.
Verify the capability.
An AAC plant proposal is more than a machinery list. Compare the production basis, complete scope, operating evidence and accountability behind every offer.
Designed for investors, technical teams and corporate purchase teams.
The direct answer
Start with a common basis.
Not the final price.
Compare AAC plant suppliers using the same production assumptions, equipment boundaries, automation definition, utility basis, manpower model, commissioning responsibility and acceptance conditions.
A quotation becomes comparable only after its inclusions, exclusions and evidence are visible.
Price can be compared in one line.
Engineering capability cannot.
A complete comparison
Twelve factors.
One accountable decision.
Each factor connects a technical choice to commercial risk, operational stability or future flexibility.
Equipment scope
Machinery, auxiliaries, controls, handling systems and battery limits.
Automation boundary
Where manual intervention remains in normal operation and fault recovery.
Utilities
Power, steam and water assumptions on the same production basis.
Manpower
Operators, helpers, maintenance and supervision required per shift.
Product capability
Blocks, panels, sizes, density range and quality-control requirements.
Manufacturing evidence
What the supplier designs, manufactures, assembles and tests.
Running-plant evidence
Comparable references supported by operating records—not observation alone.
Project responsibility
Ownership of integration, commissioning, training and stabilization.
Performance acceptance
Test conditions, measurements, exclusions and acceptance criteria.
Service and spares
Warranty, response process, documentation and parts availability.
Expansion readiness
Future capacity, panel integration and layout constraints.
Evaluate
Turn every promise
into evidence.
A supplier presentation can establish interest. It cannot replace measurable assumptions, physical verification or contractual clarity.
Normalize the proposal
Place each offer into one scope-responsibility matrix. Record supply, erection, cabling, piping, integration, commissioning and testing for every plant section.
Verify how capacity is calculated
Request mould volume, batches per hour, operating hours, pre-curing constraints, cutting cycle, autoclave loading, curing cycle and saleable-output assumptions.
Map automation by function
Identify where operators initiate movement, confirm sequences, recover faults, record quality data or manually handle material. Compare functions—not labels.
Use the same utility basis
Separate connected load from consumption. Compare power, steam, water and manpower for the same production, product mix and shift pattern.
Comparison rule
If two capacity or utility figures use different assumptions, they are not yet comparable.
Physical verification
Visit the places
where claims become visible.
01 / Workshop
Inspect manufacturing capability
A workshop visit should be an evidence review—not a visual judgement of size or housekeeping alone.
- In-house and bought-out equipment scope
- Fabrication, machining and assembly capability
- Material traceability and inspection stages
- Current workload and project resources
- Testing and pre-dispatch practices
Do not infer financial strength from workshop appearance. That requires separate due diligence.
02 / Running plant
Verify operating performance
Select references close to the proposed capacity, raw-material route, automation level, age and product mix.
- Recorded production and saleable output
- Manpower and manual interventions
- Product quality and downtime records
- Utility history where available
- Service and spare-parts experience
Observe the plant, speak with the owner and operating team, then cross-check recollections with records.
Decide
Choose the solution
whose responsibilities are clear.
The objective is not to find the longest proposal. It is to find the configuration that fits your project and can be verified.
Decision area
Question to answer
Technical fit
Does the configuration suit the required products, raw materials and output?
Evidence
Which important claims are supported by documents or relevant operating plants?
Scope completeness
Are all equipment, services, interfaces and exclusions visible?
Execution capability
Are design, manufacturing, project and commissioning resources demonstrated?
Lifecycle responsibility
Are service, spares, training and documentation adequate?
Contractual clarity
Are performance obligations and acceptance conditions measurable?
Future readiness
Can the layout support realistic expansion or panel requirements?
Do not let a high total score hide a critical failure.
Unsupported capacity, incomplete safety responsibility, unclear acceptance terms or an essential missing plant section should be treated as decision gates—not merely low-scoring items.
Before you finalize
Eight red flags
worth stopping for.
- 01Capacity without cycle, operating-hour or saleable-output assumptions.
- 02‘Fully automatic’ without a process-level automation boundary.
- 03Utility or manpower savings without a comparable baseline.
- 04Project references without the supplier’s exact scope.
- 05Buyer-scope items without clear interface responsibility.
- 06Commissioning dependent on unnamed resources.
- 07No measurable performance test or acceptance protocol.
- 08Limited access to relevant customers or technical personnel.
Investor questions
Clear answers.
Before commitment.
No. Price should be compared only after scope, assumptions, performance obligations and lifecycle responsibilities are normalized. A lower price may be commercially sound when the proposal remains technically complete and verifiable.
One closely comparable reference provides useful evidence. Additional references improve confidence when technology, capacity, raw materials, product mix or plant age differ.
Map the complete process and record every routine action, manual transfer, operator confirmation, fault-recovery task and quality-data entry. Compare functions rather than labels.
Ask which assumptions convert mould volume and production cycles into saleable cubic metres per day. Without those assumptions, headline capacities are not directly comparable.
Clear accountability is more important than a particular contracting model. Every interface needs a competent, named and contractually responsible party.
A plant reasonably close to the proposed technology, capacity, raw-material route, product mix and automation level—and where operating records can be reviewed.
Before the purchase order
Review the proposal.
Expose the assumptions.
Share your proposed capacity, product mix and supplier scope sheets. Identify technical deviations, incomplete responsibilities and questions that should be resolved before finalization.