Standard terms for smart glasses OEM/ODM programs are 30% T/T deposit with 70% before shipment, samples 100% prepaid, and tooling or NRE charged as project milestones. Everything is invoiced in USD on a proforma that names the exact goods, milestones and company bank account — so finance teams and procurement controls have a clean paper trail.
Milestone payments mirror the risk structure of electronics manufacturing: the deposit commits materials and line capacity, while the balance releases against completed, inspected goods — before they leave our dock.
| Item | Standard term | When it is due | What it releases |
|---|---|---|---|
| Mass production (first order) | 30% T/T deposit + 70% before shipment | Deposit on PI confirmation; balance against final inspection report | Materials/line start; balance releases documents and cargo |
| Mass production (repeat customers) | 30/70 as standard; adjusted credit lines by agreement | Same milestones; negotiated partners may receive shipment-window terms | As above, with account-history flexibility |
| Samples | 100% prepaid | Before the sample build starts (5–15 day lead time) | Sample production and DHL/FedEx dispatch |
| Tooling / NRE | 100% before tooling start, or 50/50 at kick-off and T1 approval | Per the NRE schedule in the contract | Mold design, cutting, T0/T1 trials and engineering work |
| Spare parts / accessories | 100% prepaid for after-warranty supply | With the spare-parts proforma | Warehouse dispatch |
Trust is earned through purchase history, not asserted in the first email. The framework below is the starting position; deviations are written into the sales contract and reviewed annually.
"Before shipment" means the balance is settled after goods pass final AQL inspection and before the bill of lading is released — buyers typically receive the inspection report, packing photos and shipment schedule with the balance invoice. This is the same sequence described on the shipping & logistics page.
Method follows value and risk: fast low-fee rails for samples, bank transfer for production, documentary credit for large programs.
Telegraphic transfer in USD to the named Shenzhen Kingring Technology Co., Ltd. company account. Standard for deposits, balances and tooling; bank charges outside China are borne by the payer under OUR/SHA conventions stated on the PI. One to three banking days to clear.
Accepted for sample fees and small-value accessory orders where speed matters more than fee: funds confirm in hours and the sample build starts immediately. Platform fees are included transparently in the sample proforma rather than hidden in unit pricing.
Irrevocable letters of credit at sight issued by a first-class bank are considered for substantial programs (typically large container volumes or multi-shipment frameworks). Terms, documents list and discrepancy handling are agreed before L/C opening so presentation is clean.
Western Union, personal-account transfers and cryptocurrency are never accepted. The full verification rule is in the security section below.
Non-recurring engineering covers one-off work: mold design and steel for custom frames, custom PCBA layout and bring-up, test fixtures, custom packaging dielines and certification in your brand name. These costs exist once, regardless of order size, so quoting them separately keeps unit prices honest.
Tooling is billed either 100% before mold cutting for straightforward programs or on a 50/50 milestone — half at kick-off, half at T1 sample approval. Tooling you fund is your exclusive property: tagged, stored in our mold shop and never run for another buyer.
For partners who prefer zero visible NRE, fees can be amortized into the unit price across a contracted volume (for example spread over the first 10,000 units with a stated amortization schedule). The trade-off is a higher unit price until amortization completes; we present both options on the quotation.
Your accounts-payable team should never have to ask what an invoice refers to. Each proforma invoice (PI) and commercial invoice is self-contained.
Full legal names — Shenzhen Kingring Technology Co., Ltd. as seller, your registered entity as buyer — plus USD currency, PI number, date and validity period (usually 15–30 days).
Model codes, colors, firmware configuration, packaging type, unit quantities and the linked quotation/contract; MOQ and tier are visible at line level.
Unit price, extended totals, Incoterm (EXW/FOB Shenzhen/CIF/DDP), and an explicit split of what is included — freight, insurance, duties — so no charge appears late.
Deposit/balance amounts with due dates, banking coordinates to the verified company account, and document-release conditions for the balance.
Sample approval reference (golden sample serial), planned ship date, HS code and country of origin, tying finance records to the project file.
The post-shipment commercial invoice mirrors the PI values; PI, packing list, B/L and invoice never contradict each other at customs.
For internal budgeting before the PI, the quotation response already states the same price structure, so the formal invoice never re-opens commercial negotiation.
Payment fraud in China manufacturing almost always follows the same script: an email look-alike announces "updated bank details". Our counter-rule is deliberately rigid.
Credit is a commercial decision, not a marketing promise. The path to more flexible terms is documented and equal for every customer.
Strict 30/70 against inspection — both sides learn how the other performs paperwork and schedules.
After several cleanly completed POs, terms are reviewed annually against volume, payment punctuality and forecast quality.
Established partners can move to a master agreement with periodic settlement windows and rolling-forecast capacity hold.
Where useful, documentary L/C or credit-insurance-backed structures give both parties security without renegotiating unit prices.
Settlement is always USD unless a bilateral currency arrangement is signed in the contract. Warranty deposits and spare-parts allowances are agreed separately and documented on the warranty policy page.
Incoterms, document release against payment, FBA delivery.
Explore02Quantities that set tier pricing and deposit exposure.
Explore03What each payment milestone unlocks on the schedule.
Explore04Sample prepayment and fee credit against the first PO.
Explore05Receive the PI structure with milestones for your program.
ExploreSend quantity, destination and timeline. The quotation comes back with the deposit, milestones, tooling options and the proforma structure.