Begin with the order, not the supplier list.
Yongkang is commonly associated with metal products and drinkware supply. That does not make every factory suitable for every product. Start by documenting the bottle or tumbler you need, the market where it will be sold, your quantity and your timing.
Prepare a one-page product brief.
- Product type, capacity and reference image
- Material and finish requirements
- Lid, handle, straw or accessory requirements
- Logo, artwork, colors and packaging
- Target quantity, sample need and delivery location
- Target market and any applicable testing or labeling requirements
Compare evidence, not only unit price.
Ask each potential supplier to respond against the same brief. Review their sample process, production assumptions, artwork confirmation, inspection approach and packaging specification. A lower price may reflect a different material, decoration method, packaging level or delivery term.
Use a staged decision.
First check whether the supplier understands the brief. Then evaluate a sample against written criteria. Before mass production, agree on a final approved sample, inspection points and a clear record of the commercial terms.