1. Define the product and sourcing route
OEM starts from a buyer-controlled specification or design. ODM starts with a manufacturer’s existing development work or a design proposal that will be adapted. In either route, clarify design rights, patterns, tooling ownership and the changes allowed before sampling.
2. Shortlist by documented production scope
Use location and product indexes to identify factories with relevant published production evidence. Confirm the legal contracting entity and actual production site. Do not treat an office, sales company or client logo as proof of workshop capability.
3. Make quotations comparable
Give each proposed factory the same dimensions, materials, construction, intended use, quantities by colour, logo artwork, packaging and destination. Ask for sample and tooling charges separately and identify any substitutions or exclusions.
4. Approve a controlled physical sample
Check the actual materials, hardware, reinforcement, seams and packing. Agree dimensions, appearance and functional acceptance points in writing. Request project-specific tests when thermal, impact, water or chemical performance is important.
5. Control changes and bulk inspection
Keep the approved sample and specification under revision control. Agree how material changes, subcontracting or construction revisions will be approved. Define inspection timing, sampling and defect handling before shipment.
6. Confirm packing and shipping responsibilities
Check individual packing, carton quantity, dimensions, markings and any spare components. Confirm trade terms and responsibilities for freight, insurance, customs and destination requirements. Cost calculators are planning aids; they cannot determine the final tariff classification or a supplier’s live freight quote.
Use the related resources
OEM and ODM explained · Sampling and MOQ · Landed-cost planning · Source-reviewed factories