Mijay Group resource

Quality control in China

Direct answer

Quality control in China starts before production with an approved specification and sample. Depending on risk, checks can be performed on incoming materials, during production or before shipment. The inspection criteria, sample size and acceptance rules must be agreed in writing; an inspection reduces risk but cannot make an undefined product compliant.

What Mijay Group handles

Specification-based checks

Inspect dimensions, materials, appearance, function, labelling and packaging against approved, measurable criteria.

Inspection at the useful stage

Choose pre-production, during-production or pre-shipment control according to what could go wrong and when it can still be corrected.

Documented findings

Record quantities checked, defects, measurements, photos and the decision required before release.

How the project works

1. Approve the reference

Freeze the specification, approved sample, packaging and critical tolerances.

2. Build the inspection checklist

Translate quality expectations into observable checks and classify critical, major and minor defects.

3. Select timing and sampling

Choose the production stage and sampling method appropriate to the product and order risk.

4. Inspect and report

Check the available batch, document results and identify non-conformities without altering the agreed criteria.

5. Decide and follow corrective action

The buyer approves shipment, requests rework or requires reinspection based on the contract and findings.

What you need to know before you start

AQL is a method, not a quality promise

If AQL sampling is used, the level and limits must be chosen for the product. A sampled inspection does not mean every unit was checked.

Laboratory testing may still be required

Visual and functional inspection cannot replace accredited testing or certification required by the destination market.

Inspection needs enough finished goods

A pre-shipment inspection is useful only when the agreed proportion of goods is complete and packed for representative checking.

Frequently asked questions

How does quality control work in China?

Define measurable specifications, choose the inspection stage and sampling plan, inspect against the approved reference, document defects and decide whether rework or release is appropriate.

What is a pre-shipment inspection?

It is a check of a defined sample from a substantially completed and packed order before dispatch, covering the agreed appearance, dimensions, function, quantity, labelling and packaging criteria.

Does quality control guarantee zero defects?

No. Inspection reduces risk and provides evidence about the checked sample or batch. Strong specifications, supplier capability and production control are also necessary.

Related practical guides

Discuss your project with our China-based team

Share your product, target quantity, destination and priorities. We will identify the right sourcing or logistics workflow before preparing a proposal.

Present my project