Sourcing notes

Better questions make better comparisons.

A small library for buyers who need to compare specification, documentation, packaging and factory evidence without relying on marketing claims.

Product identity, evidence, commercial terms and destination questions in one sequence.

A practical way to separate batch evidence, material information and hazard communication.

The commercial and artwork details that should be settled before a packaging run.

Working principles

Use the same checklist for every supplier.

Start with the exact material. Name, grade, strength and pack should be written the same way on the specification and quotation.
Ask which evidence is lot-linked. A representative COA and a COA for the quoted lot are different documents.
Check the commercial chain. Compare seller name, bank beneficiary, contract and invoice. Verify any last-minute change independently.
Do not rely on a tour for analytical results. The visit and the product test answer different questions.
Review the destination first. Import, possession and resale rules are buyer-market questions, not website claims.