B2B Supplier Due Diligence Checklist for International Buyers

Supplier due diligence should be proportionate to the value and risk of the transaction. A small sample order and a customized high-value production contract should not rely on the same level of verification.

Confirm who you are contracting with

Record the legal entity name, trading name, address, company email domain and authorized contact. Make sure quotation, invoice, contract and beneficiary information make commercial sense together.

Check operational capability

Ask how the product is made or sourced, what capacity is available, what operations are subcontracted and how quality is controlled. Technical depth is often more informative than marketing claims.

Review digital and business consistency

Compare the company website, marketplace profile, business documents and contact information. A recently created website is not automatically fraudulent, but major inconsistencies require explanation.

Verify important certificates

For certifications material to the order, check scope, validity, legal entity name, site address and issuing body. A logo displayed on a brochure is not sufficient evidence.

Control sample and specification approval

Use written specifications, drawings, samples and acceptance criteria. Record what has been approved before mass production.

Choose a suitable inspection plan

Depending on risk, use pre-production checks, during-production inspection, final inspection or independent testing. Inspection does not replace a clear purchase specification.

Verify payment beneficiaries

The beneficiary should be commercially explainable. Treat unrelated personal accounts, sudden changes and high-pressure payment requests as warning signs.

Review logistics and export capability

Confirm pickup address, cargo readiness, packaging, documentation responsibilities and shipping restrictions before the order reaches completion.

Document escalation triggers

Decide in advance what issues require additional verification, such as inconsistent documents, unexplained subcontracting, repeated delays or quality failures.

Frequently asked questions

Is a verified marketplace profile enough due diligence?

No single marketplace signal should replace transaction-specific checks.

Should all suppliers undergo factory inspection?

Not necessarily. Use a risk-based approach based on order value, complexity and consequences of failure.

What is a major payment warning sign?

Unexpected requests to pay a different or unrelated beneficiary without independent verification.

Continue on Arleen Global Export

Use this guide as a planning resource, then browse products, discover suppliers and companies, explore B2B categories or read the official Arleen Global Export platform guide. For regulated, legal, customs or banking decisions, verify current requirements with the relevant official authority or qualified professional.