Research transparency
How we research and review China sourcing information
CN Sourcing Tools is an independent editorial and product project. This page explains how we prepare buyer guides, tools and industrial-belt references without claiming professional credentials, official database status or supplier verification that we do not have.
Who prepares the content
Pages are published under the organization name CN Sourcing Tools. This identifies the project responsible for the page; it is not a claim that an individual author is a lawyer, customs broker, inspector, engineer or certified sourcing professional. Where specialist review is not available, the page should not imply that it occurred.
How topics are selected
We prioritize recurring buyer tasks such as searching 1688, preparing RFQs, comparing quotations, checking supplier and payment information, planning inspection, estimating freight and researching production regions. Search demand may help prioritize an update, but a page must still support a practical buyer decision or workflow.
Source hierarchy
When a factual claim needs external support, we prefer sources closest to the underlying rule or record:
- Government, customs, regulator, standards-body and official platform documentation.
- Local-government, public institution, trade-fair and industry-association material.
- Established operational references used to explain terminology or buyer workflow.
Commercial pages, marketplace listings and supplier marketing can provide leads, but they are not treated as independent proof of factory ownership, production capability, compliance or reliability.
Evidence labels
Industrial-belt research uses public evidence labels to separate reviewed claims from early research:
- Verified: the core regional claim has suitable supporting public evidence.
- Partially Verified: meaningful parts are supported, but coverage or role details remain incomplete.
- Preliminary: the category is a research starting point and requires further external verification.
These labels describe the supporting information for a regional claim. They never verify an individual supplier or guarantee that a company operates a factory at an address.
Buyer guides and practical tools
Buyer guides combine documented source material with practical workflow structure. Not every checklist item requires an external citation, but rules, official responsibilities and material factual claims should use primary or clearly identified references where available. Calculators and decision tools organize user inputs using published formulas or disclosed decision rules; their results remain preparation aids, not professional advice or real-time verification.
How AI assistance is used
AI-assisted tools may help structure drafts, compare wording, generate test cases and check consistency. AI output is not treated as evidence. It does not independently verify a supplier, law, industrial cluster, address, price, customs requirement or service provider. Public claims should be supported by cited information or labeled with the remaining uncertainty.
Review dates and updates
A reviewed or modified date should change only when the page, evidence or functionality receives a meaningful review. Dates are not changed simply to make old content appear fresh. Rules, platform features, freight conditions and market information can change after review, so buyers should confirm current details with the relevant authority or contracted professional.
Corrections and commercial independence
Buyer and industry feedback can identify missing or inaccurate information, but suggestions are reviewed before publication and are not published automatically. Advertising, partnership inquiries or future service-provider listings do not convert a provider into a verified recommendation. Sponsored relationships should be disclosed and must not override evidence labels or buyer warnings.
What buyers must verify themselves
- Supplier legal identity, payment beneficiary and contracting entity.
- Factory ownership, production capability, quality systems and current address.
- Product standards, testing, labeling and destination-market compliance.
- Freight scope, customs responsibilities, duties, taxes and final-delivery charges.
- Service-provider licences, references, fees, responsibilities and insurance.
Use the site to prepare better questions and organize evidence. Do not use it as a substitute for legal, customs, engineering, compliance, inspection or financial advice.
Contact and correction routes
Use Contact for general corrections and platform feedback. Industrial-belt research also provides Suggest a correction and Request a product category routes. Submissions should be reviewed before any public data changes.