| 1 | Define the material composition | Ask for the exact percentage of ceramic, recycled content, natural fiber, silicone, plastic, or other materials. | The specification should identify all major materials and distinguish recycled content from biodegradable content. | Material specification sheet, supplier declaration, and applicable laboratory test report. | Add the approved composition and tolerance range to the purchase order. |
| 2 | Confirm food-contact safety | Verify that the mug, glaze, coating, lid, and printed decoration are suitable for the intended beverages and temperatures. | Request testing against the food-contact requirements applicable in the destination market. | Recent third-party migration, heavy-metal, or food-contact test reports covering the finished product. | Do not approve production until the reports match the final material and decoration setup. |
| 3 | Order and inspect samples | Check capacity, dimensions, weight, handle strength, lid fit, surface finish, odor, print quality, and packaging. | Compare at least one physical production-equivalent sample with the approved artwork and specification. | Signed sample approval sheet, dated photographs, and a dimensional inspection record. | Keep a sealed reference sample for pre-shipment comparison. |
| 4 | Set a clear quality standard | Define acceptable limits for chips, cracks, pinholes, color variation, scratches, deformation, and packaging damage. | Use an agreed inspection level and defect classification before mass production. | Quality-control checklist, defect photos, inspection procedure, and sampling plan. | Include the defect standard and remedy terms in the sales contract. |
| 5 | Confirm minimum order quantity | Clarify whether the minimum quantity applies per design, color, size, packaging format, or total order. | Request separate quantities for stock items, custom colors, custom molds, and printed designs. | Written quotation showing unit price, tooling cost, setup cost, and quantity breaks. | Calculate demand by sales channel before committing to the lowest unit price. |
| 6 | Lock the production lead time | Confirm sample time, artwork approval time, production time, inspection time, and dispatch date separately. | For customized wholesale orders, a practical planning range is often 30–60 calendar days after approval, depending on materials and quantity. | A milestone schedule with responsible parties and a definition of the production start date. | Allow extra time for port congestion, holidays, testing, and destination customs clearance. |
| 7 | Compare shipping terms | Confirm the Incoterm, named place, freight responsibility, insurance, export documents, and customs obligations. | Compare equivalent quotations under the same Incoterm, currency, shipment weight, and destination. | Pro forma invoice, carton list, freight quotation, commercial invoice, and transport document requirements. | Ask for total landed cost instead of comparing unit prices alone. |
| 8 | Check packaging efficiency | Review inner protection, carton strength, stacking limits, pallet dimensions, and packaging recyclability. | Request carton dimensions, units per carton, gross weight, net weight, and estimated cubic volume. | Packaging drawing, carton drop-test record where relevant, and loading plan. | Approve a packaging sample before production to reduce breakage and dimensional-weight charges. |
| 9 | Verify sustainability claims | Distinguish between recycled, recyclable, reusable, compostable, biodegradable, and plastic-free claims. | Every environmental claim should identify its material basis, test method, conditions, and geographic limitations. | Chain-of-custody records, certification documents, test reports, and approved claim wording. | Use precise wording on packaging and marketing materials; avoid unsupported general claims. |
| 10 | Agree on after-sales support | Clarify the process for shortages, transit damage, manufacturing defects, replacement parts, credits, and response times. | Set a written claim window, required evidence, corrective-action deadline, and replacement or refund procedure. | Warranty terms, claim form, escalation contacts, and examples of corrective-action reports. | Record carton counts and product condition immediately after delivery. |