China construction materials: submittal approval
Ask for an indexed pack linking the project specification to drawings, identified samples, declared performance and applicable test evidence. Record consultant comments and revised submissions, then issue a separate procurement release against the accepted configuration. Factory coordination can be supported by Cambridge China Bridge.
Agree what the consultant will review
Before asking the factory for documents, agree the submission requirements with the project's technical owner and consultant. Identify the material, intended location and use, specification clauses, required performance, interfaces and proposed departures. Name the reviewers and the buyer authorised to release manufacture. Agree submission dates against the project programme, including time for corrections.
Treat consultant review, product conformity checks and procurement release as separate records. Our construction materials guide covers performance and conformity. Use product development support to coordinate unresolved details or prototypes before submitting a configuration for review.
Build an indexed submission pack
Give the submission a reference and revision. Its index should identify each document or physical sample, revision, date, responsible person and specification clause addressed. Include a departures schedule, even when the supplier reports no departures. Use the following as a project checklist, adapting it to the consultant's brief rather than treating every item as universally required.
| Pack item | What to submit | What the reviewer checks |
|---|---|---|
| Drawings and technical schedule | Product and fabrication drawings, dimensions, tolerances, materials, finishes, fixings and installation interfaces | Fit with the specification, adjacent work and intended installation |
| Samples and mock-ups | Identified samples linked to the proposed materials, finish and drawing revision; record where retained samples are held | The features being approved, such as appearance, assembly or an installation detail |
| Declared performance and conformity | Applicable declaration of performance, proposed marking details and assessment or certification evidence appropriate to the route | Product identity, intended use and relevance to the specified performance |
| Test evidence | Complete applicable reports, sample descriptions, configuration details and stated limitations | Whether the evidence supports the proposed product and installation conditions |
| Installation and departures | Installation, storage and maintenance information, plus proposed substitutions and unresolved questions | Conditions affecting use and decisions still needed before release |
Match evidence to the proposed configuration
CE marking remains available for construction products placed on the Great Britain market. Ask the supplier to identify the applicable conformity route rather than requesting a generic certificate. Map each specified performance requirement to the declaration and supporting evidence. Ask the consultant to assess suitability for the intended project use; a marking alone does not answer that project question.
Check that reports describe the proposed material, thickness, coating, components and relevant assembly. For fire or structural evidence, flag differences in joints, fixings, supports or installation conditions for technical review. Record missing or unclear coverage instead of assuming equivalence. Use testing and certification support to coordinate evidence checks or additional testing where needed.
Close comments through controlled revisions
Keep a comment register linking each consultant comment to the affected document, supplier response, responsible person and closure decision. Preserve the consultant's wording and status. Agree what statuses mean on this project, including whether acceptance with comments requires a corrected submission. Silence or an unanswered email should not be treated as a release instruction.
Resubmit with a change summary, revised index and clearly identified amendments. Require the reviewer to confirm closure of comments affecting manufacture. Link reviewed English and Chinese documents to the same technical revision, following our translated drawing approval guide. Refer conflicting instructions back to the technical owner before affected work proceeds.
Issue and retain a separate manufacture release
The buyer's release should name the authorised products, quantities, factory, document revisions and sample references, with any conditions or exclusions. Check technical acceptance, unresolved departures and internal purchasing authority before issuing it. If only part of the package is released, identify the permitted work explicitly. Ask production and quality staff to acknowledge the exact released pack.
Use factory verification support to check the proposed factory's capability; record this separately from consultant acceptance. Give inspectors the released pack and retain it with the comment history and release record in your product compliance file. Hold affected work after a proposed material or design change, assess its impact and obtain renewed acceptance and procurement release before continuing.
Frequently asked questions
What should a Chinese construction supplier submit?
An indexed, revision-controlled pack of drawings, identified samples, applicable declarations and test evidence, installation information and departures, mapped to the project specification.
Does consultant approval authorise manufacture?
Agree the consultant's review status and authority in advance. As a purchasing control, issue a separate buyer release naming the accepted revisions, samples, scope and conditions.
Can we release manufacture with comments outstanding?
Hold work affected by unresolved comments. If a limited release is appropriate, have the technical owner define the permitted scope and conditions, then record the buyer's authorisation.
What if the factory changes an approved material?
Hold affected work, record the proposed change and reassess drawings, samples and evidence. Obtain the relevant technical acceptance and a revised procurement release before continuing.