Taking bookings for November · on site within 48 hours

Every shipment,
checked before
it leaves the factory.

Transitive-Trust is an independent third-party inspection service based in China. Twelve years on factory floors across the country’s main production belts — durables, non-durables, components and materials — running pre-shipment inspections, during-production checks, container loading supervision and factory audits for overseas buyers and trading companies. We don’t sell reports — we report what we actually see.

12 yrsOn the floor
3,000+Inspections
180+Buyers served
24 hReport turnaround
Working to ISO 2859-1 sampling ANSI/ASQ Z1.4 ISO 9001 QMS CE / FCC pre-check RoHS / REACH Buyer-specific checklists
Services

Six ways buyers use us

Whether you’re vetting a new supplier or shipping every month, there’s a sensible way to check the goods. Here’s how we’d approach it.

Pre-Shipment Inspection

PSI

Goods are finished but not yet loaded. We draw a sample to AQL, open cartons, and check quantity, workmanship, dimensions, function, packing and shipping marks against your spec — then tell you whether it should ship.

Typical use: first orders, bulk deliveries, post-complaint rechecks

During Production Check

DUPRO

We come in when the line is 20–40% through. Problems found here can still be corrected; the same problems found at the end are rework, delays and arguments.

Typical use: new tooling, new processes, long lead times

Container Loading Supervision

CLS

We stay for the whole load: carton count, stacking pattern, moisture and impact protection, seal number photographed. The goods can be right and the container still wrong.

Typical use: FCL shipments, mixed loads, fragile goods

Factory Audit

Supplier assessment

Capacity, equipment, incoming and in-process controls, QC staffing, traceability. Enough to judge whether this factory can carry your volume and your standard.

Typical use: supplier onboarding, order transfer

Inspection Protocol

Checklist development

Turning “it should look decent” into clauses that can actually be judged: defect classification, sampling plan, accept/reject criteria — written down so you and the factory argue about facts, not opinions.

Typical use: many SKUs, vague specs, repeat disputes

Quality Consulting

Corrective action

Knowing a batch failed is the easy part. We trace the failure to the process that caused it, propose something the factory can actually execute, and check the result on a re-inspection.

Typical use: persistent defect rates, clustered complaints
How it works

Five steps, minimal fuss

You send the product details and the factory address. Everything on site is our job.

01

Brief

Spec sheet, order quantity, factory address, preferred inspection date.

Anytime
02

Quote & slot

We agree scope, sampling plan and fee, then lock the date.

Within 2 hours
03

On site

AQL sampling, testing, photographs, defects recorded as they are found.

Usually 1 day
04

Report

Bilingual report with photo evidence and a stated pass/fail rationale.

Same or next day
05

Follow-up

Corrective recommendations and a re-inspection to compare before and after.

As needed
INSPECTION REPORT SUMMARY PAGE
PASS
Report no.QI-2026-0418
Inspection typePre-shipment (PSI)
Order quantity4,800 pcs
Sample size200 pcs
Sampling planISO 2859-1, GII
AQL levels0 / 2.5 / 4.0
Critical 0
Major 2
Minor 7
86 on-site photos EN / CN bilingual Defects located Traceable
Reporting

A report isn’t a formality

Too many inspection reports say “failed” and leave the buyer with no decision to make. Ours answers three questions: can this ship, what exactly is wrong, and what should change.

  • The verdict has a basis

    Every conclusion maps to a specific clause and to the sampling data behind it. No gut feeling dressed up as judgement.

  • Photos that prove something

    Each key defect is photographed in place, tagged with carton number and sample sequence, so you and the factory look at the same thing.

  • Forwardable as-is

    Written in English and Chinese so buyer, trading desk and factory work from one document instead of three interpretations.

Field notes

What we are working on

Judgements brought back from the floor — what keeps recurring, and what can be caught before it costs a container.

All updates
About

Judgement is learned on the floor, not in the meeting room

Transitive-Trust Inspection Service

Our core team has inspected for twelve years. Eight of those were with an international inspection agency, first as inspectors, then leading teams across the Yangtze and Pearl River Deltas. The service went independent in 2021 and takes only work we can stand behind.

The most common misunderstanding about this job is that the inspector is there to find fault. They aren’t. The job is to show the buyer where the risk sits, and to describe it clearly enough that the factory knows what to fix. A vague report helps nobody.

Our standard: walk the line first, then the warehouse, then open cartons. Write the report the same day, while the details are still exact.

Coverage

Where we work, and on what

Anywhere in China. Same or next day across East China; other production regions need three working days’ notice for travel.

Service area

Nationwide across China — travel at cost
East ChinaSouth ChinaNorth ChinaCentral China SouthwestNorthwestNortheast

Main categories

Four groups covered as standard — furniture, general merchandise and textiles are where we work deepest

Durables

  • Household appliances
  • Consumer electronics
  • Electrical tools
  • HVAC equipment
  • Lighting supplies
  • Household decorations
  • Furniture
  • Sports equipment

Non-durables

  • Footwear & accessories
  • Clothing & accessories
  • Luggage
  • Leather goods
  • Fabrics
  • Entertainment toys
  • Baby products
  • Gifts & premiums

Components

  • Moulds
  • Auto parts
  • Mechanical parts
  • Precision tools
  • Industrial machinery
  • Metal plate
  • Machined components

Materials

  • Bathroom products
  • Hardware products
  • Doors & windows
  • Building materials
  • WPC products
  • Gas appliances

What we turn down

Better said now than later
Jobs where the verdict is decided in advance
Timelines too short for a proper sample
Categories where we have no real competence
Orders where we have a stake in the factory
FAQ

Questions buyers usually ask

How do you charge?
Per inspector-day, not as a percentage of order value. One day covers one inspection including the report and photographs. Travel and accommodation are billed at cost. Send the product details and factory location and you’ll have a quote the same day.
What do you need from us?
A spec sheet or sample photos, order quantity and carton count, the factory name and address, your preferred date, and anything you specifically care about — a dimension, a function, a finish. If you already have a checklist, send it. If not, We’ll help you build one.
How soon can you be on site, and when do I get the report?
Anywhere in China, usually within 48 hours of confirmation (remote regions depend on flights); during peak season, book a week ahead. Reports go out the same day or the next working day, in English and Chinese, with on-site photographs.
What happens if the goods fail?
The report states the failed items, their defect classification and the clause each one is judged against, plus recommended corrective action. Once the factory has reworked, a re-inspection compares the new result against the first one, so you can see whether the shipment is now shippable.
Are you independent of the factories?
Yes. We take no payment from factories and don’t accept “self-certification” work commissioned by a supplier. If we have any connection to a factory on your order, we’ll say so and step back. That independence is the only reason this work lasts.
Can you do a remote video inspection instead?
Yes, with clear limits: video can’t cover dimensional measurement, function and endurance testing, or carton stacking checks, and the sample is less representative. It works as a supplement. We wouldn’t rely on it in place of being there.
Contact

Tell us about the goods.
Then we’ll decide how to check them.

Send an email or add us on WeChat. Two-hour response during working hours, with a quote and available dates the same day.

  • ContactDillon Chen
  • Email327742860@qq.com
  • WeChatDLC1313113
  • Phone / WhatsApp+86 173 4874 4686

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