Content owner: Packaging Factory Direct. Published and reviewed: . This checklist is a procurement framework, not a legal opinion, audit report or certification of any supplier.
Use evidence levels instead of marketing adjectives
Terms such as "professional supplier," "high quality" or "leading manufacturer" do not tell a buyer what was verified. Convert every important claim into an evidence request. A legal document can support identity. A dated equipment record can support a process. A controlled inspection report can support a production-lot decision. None of those items proves every other claim.
| Claim to verify | Minimum evidence | Stronger evidence | Red flag |
|---|---|---|---|
| Legal identity | Registration record and matching contract entity | Independent registry check and address confirmation | Bank beneficiary or invoice entity does not match |
| Factory capability | Recent process-specific photos or video | Live audit, third-party audit and sampled records | Only showroom photos or unrelated equipment |
| Quality control | Inspection checklist and defect definitions | Lot-linked reports, calibrated equipment records and corrective-action evidence | "100% quality" with no acceptance criteria |
| Certification | Complete certificate with holder, scope and dates | Issuer verification and scope matched to the project | Logo only, cropped image or another company's name |
| Export experience | Redacted packing and shipping document examples | Recent route-specific records with confidential data removed | Customer names or documents shared without permission |
Step 1: match the legal and payment identities
Request the legal name, registration number, registered address, operating address and the exact entity that will sign the contract. Compare them with the company name on the quotation, pro forma invoice, bank beneficiary and export documents. A difference may have a legitimate explanation, but it should be documented before payment.
Use independently obtained contact details when verifying a changed bank account. Do not rely only on a payment-change email. Include the approved beneficiary and change-control method in the purchasing process.
Step 2: map every manufacturing process
A packaging order may involve printing, lamination, die cutting, foil stamping, rigid-box assembly, pouch making, label converting, insert forming and final packing. Ask which processes are performed at the stated site and which are subcontracted. Subcontracting is not automatically a problem; undisclosed subcontracting removes traceability and makes corrective action harder.
- Equipment or process used for the quoted construction.
- Site responsible for printing, converting, assembly and packing.
- Approved subcontractors and the controls applied to them.
- Material identification from receipt through production.
- Artwork, plates, dies and digital-file access controls.
- Segregation of approved, rejected and rework material.
Step 3: lock the sample-to-production specification
A sample is useful only when the buyer records what it represents. Give the approved sample an identifier and connect it to the dieline, material, color target, print process, finish, insert, packing method and dated artwork revision. Record any sample features that are visual only and cannot become mass-production acceptance criteria.
Before production, issue a signed specification that defines dimensions and tolerances, materials, appearance references, functional requirements, quantity tolerance, packing and inspection. If a change is necessary, approve it in writing and identify the new revision.
Step 4: define defects and sampling before the order
ISO 2859-1:2026 is the current third edition of the international standard for sampling schemes indexed by acceptance quality limit for lot-by-lot inspection by attributes. ISO describes AQL as part of a sampling system; it is not a promise that an accepted lot contains no defects.
The purchase specification should state:
- What constitutes a lot.
- The sampling standard and edition.
- The inspection level or agreed sample-size method.
- Critical, major and minor defect definitions with visual examples where useful.
- The AQL or other acceptance rule for each defect class.
- Measurement tools, conditions and tolerances.
- Who inspects, when inspection occurs and how results are reported.
- What happens when the lot is rejected.
Step 5: verify certificates and regulated documents
ISO explains that ISO 9001 sets requirements for a quality management system, but a website reference to ISO 9001 does not prove that a supplier is certified. If certification is important, check the complete certificate, current status, holder, site, scope and issuing body.
Apply the same discipline to FSC, food-contact, recycled-content, compostability, test-laboratory, pharmaceutical or other claims. The evidence must relate to the selected material, supplier, facility, process and destination market. A generic certificate from an upstream company may be relevant, but it must be connected to the actual material traceability for the order.
Step 6: audit communication and change control
Good supplier verification includes how problems are handled. Ask who owns engineering, artwork, quality and shipping decisions. Test the process with a controlled question: request a specification clarification and check whether the answer is documented, technically consistent and reflected in the quotation.
Before paying for mass production, agree on approval owners, response times, nonconformance handling, rework authorization, replacement or credit rules, intellectual-property controls and document retention. Put important decisions in the purchase specification or contract rather than leaving them in chat messages.
Packaging supplier audit pack
- Legal registration and verified payment identity.
- Facility address and recent process-specific evidence.
- Manufacturing and subcontracting process map.
- Approved specification, dieline, artwork revision and sample identifier.
- Incoming-material, in-process and final-inspection records.
- Defect classification and sampling plan.
- Calibration or verification status for relevant measuring devices.
- Corrective-action example with confidential information removed.
- Project-specific certificate and document verification.
- Export packing, shipping marks and document responsibilities.
Review Packaging Factory Direct evidence pages
- Factory capability
- Quality control process
- Sample approval process
- Factory production and QC photo gallery
- Artwork and dieline guidelines
- Packaging procurement guides
These pages are starting points for due diligence. Buyers should request current project-specific evidence and independently verify material claims that affect safety, regulation or market access.
Primary sources and limitations
This guide does not certify Packaging Factory Direct or another supplier. It does not replace legal, financial, sanctions, regulatory, social-compliance or on-site professional due diligence.
FAQ for overseas packaging buyers
How can I verify that a packaging supplier is a real legal business?
Request the legal company name in Chinese and English, registration number, registered address, bank beneficiary name and the entity shown on quotations and contracts. Cross-check the registration in the applicable government system and investigate material name or address mismatches.
Does a factory photo prove manufacturing capability?
A photo is supporting evidence, not complete proof. Ask for recent dated facility evidence, process-specific equipment, sample and production records, quality documents and a live or third-party audit when the risk justifies it.
Should a buyer accept a certificate logo shown on a website?
No. Request the complete current certificate, holder name, scope, site address, issue and expiry dates, certificate number and issuing body. Verify it with the issuer and confirm that its scope covers the selected facility, material and process.
What is AQL in a packaging inspection plan?
AQL means acceptance quality limit within an agreed sampling system. ISO 2859-1:2026 defines AQL-indexed sampling schemes for inspection by attributes. The buyer and supplier must still agree on lot definition, inspection level, defect classes, AQL values and acceptance rules.
What should be checked before paying for mass production?
Confirm the contracting entity and bank account, approved specification and artwork revision, sample status, tooling ownership, quantity tolerance, inspection plan, required project documents, packing method, delivery terms and the process for handling nonconforming goods.
Request current project evidence
Send the packaging type, specification, quantity, destination, required documents and audit questions with your RFQ.
Send RFQ and Evidence Questions