| Product Materials | Ceramic, bamboo, stainless steel, silicone, ABS/PP plastic, or diatomite depending on the target price and design. | Material specification sheet, composition declaration, finish samples, and restricted-substance statement. | Prioritize suppliers able to offer at least two suitable material options without changing the core design. |
| Customization Capability | Logo, color, surface texture, drainage layout, dimensions, packaging, and tooling customization. | CAD drawings, previous custom samples, mold ownership terms, decoration method, and revision procedure. | Select manufacturers with in-house engineering or a clearly documented engineering partner. |
| Typical Minimum Order Quantity | Approximately 300–1,000 pieces for stock-based customization; 1,000–3,000 pieces for new molds or special finishes. | Formal quotation showing MOQ by color, material, packaging type, and tooling option. | Keep suppliers with flexible color and packaging MOQs for initial market testing. |
| Sample Lead Time | About 7–15 calendar days for existing designs; approximately 15–30 days for a new mold or complex finish. | Sample schedule, sample invoice, prototype photos, and confirmation of whether the sample uses production-grade materials. | Reject suppliers that cannot provide a written sample schedule and approval checkpoint. |
| Mass Production Lead Time | Generally 25–45 days after sample approval and deposit; custom ceramic or tooling-heavy products may require longer. | Production calendar, capacity statement, holiday schedule, and critical-path confirmation. | Choose suppliers that provide a production milestone plan rather than only a final delivery date. |
| Quality Control | Incoming material inspection, in-process checks, final inspection, drainage testing, finish inspection, and carton drop testing. | Inspection checklist, defect classification, sample inspection report, and corrective-action records. | Give preference to suppliers willing to accept third-party pre-shipment inspection. |
| Drainage and Moisture Performance | Stable base, unobstructed drainage holes or channels, low water retention, and no sharp edges around openings. | Prototype drainage video, dimensional drawing, tilt test, water-flow test, and packaging protection plan. | Treat drainage performance as a functional requirement, not only an appearance feature. |
| Surface and Finish Quality | Uniform color, consistent gloss or matte level, no pinholes, cracks, burrs, peeling, rust, or visible molding defects. | Approved golden sample, color reference, surface inspection standard, and acceptable defect limits. | Use a signed approval sample to control batch-to-batch appearance differences. |
| Compliance Documentation | REACH-related material declarations for applicable markets, packaging compliance information, and product-specific test reports where required. | Business license, factory audit report, test reports, declarations of conformity, and material safety documents. | Verify that documents match the exact material, finish, and production site being quoted. |
| Packaging and Export Readiness | Individual protective packaging, export cartons, barcode or label application, and palletization available when required. | Packaging dielines, carton dimensions, gross/net weight, loading quantity, and transit-test results. | Compare landed cost using carton volume and breakage risk, not unit price alone. |
| Commercial Terms | Quotation should identify EXW or FOB terms, tooling charges, sample fees, payment terms, validity period, and price breaks. | Signed quotation, proforma invoice, tooling ownership clause, warranty terms, and replacement policy. | Shortlist suppliers offering transparent cost separation and clear responsibility for defects. |
| Recommended Shortlist Score | Minimum 75/100 overall, with no critical failure in quality, compliance, communication, or production capability. | Completed supplier questionnaire, sample evaluation, document verification, and reference order review. | Advance three to five candidates to sampling; retain two qualified backup suppliers. |