Payment Terms When Importing Activated Carbon from China: T/T, L/C and First-Order Structures

By the YELI Technical Team - Updated October 2026 - 8 min read

Short answer: Most first orders of coconut-shell gold carbon from China settle on 30% T/T deposit with the balance against a copy of the bill of lading, or on an irrevocable L/C at sight when the ticket is large enough to justify the bank charges. Payment structure is a negotiating lever, not paperwork: staged releases are what buy you loading-port inspection, sealed retained samples, and a final tranche tied to the batch COA. Avoid full prepayment to a personal account, and make sure the beneficiary name on the invoice is the exact legal name on the contract.

Mine managers rarely lose money on the iodine number. They lose it on a deposit wired to an account nobody verified, or on a balance released before anyone opened a bag and tested it. Payment terms are the part of a carbon purchase where the technical specification either gets enforced or quietly stops mattering.

This article covers how T/T and L/C actually behave on gold-grade coconut-shell carbon shipped out of China, what a first order normally looks like, why a factory asks for a deposit, and how a buyer can spend payment milestones on things that protect the carbon that actually arrives: loading-port inspection, retained samples, and a balance tranche released against the batch COA.

What does a payment schedule actually buy you?

Payment is the only real leverage a buyer keeps after the container doors close. The specification you negotiated — 6×12 mesh (1.70–3.35 mm, GB/T 12496.2 / ASTM D2862), iodine 1000–1300 mg/g with a ±50 mg/g tolerance against the ordered grade (GB/T 12496.8 / ASTM D4607), hardness ≥98% by ball-pan (GB/T 12496.6 / ASTM D3802), platelet content <1.5%, apparent density 0.45–0.52 g/cm³ (GB/T 12496.1 / ASTM D2854), moisture ≤5% (GB/T 12496.4 / ASTM D2867) — only has force while some of the money is still unpaid.

That is not a rhetorical point. Gold carbon works in a closed loop: carbon circulates in the adsorption tanks at roughly 10–25 g/L (Industry-typical; not a YELI process commitment.), and make-up carbon is added at about 20–100 g/t of ore (Industry-typical; not a YELI process commitment.). A batch that arrives 40 mg/g light on iodine, or four points light on hardness, does not fail on day one. It fails over the following six months, as carbon consumption creeps up, fines carry gold into the tailings, and elution has to be run harder to hold the same recovery. By then the supplier has been paid in full and the argument is a memory.

A payment schedule is how a specification becomes enforceable. Each tranche should release against something you can verify independently — a loading date, an inspection report, a batch COA, an arrival test. If every tranche releases against "the supplier says it is ready", you have bought a promise.

T/T or L/C: which one fits your order?

T/T (bank wire) and L/C (documentary credit) solve different problems. T/T is cheap and fast, but it leaves one side exposed at every step, so risk has to be split by milestones. An L/C moves the exposure to the banks: under UCP 600 the issuing bank pays against a compliant document set, which is exactly what you want for a large ticket or an unproven supplier — and exactly what you do not want for a one-container trial, where bank charges and discrepancy risk can exceed the value of the protection.

Two practical notes. First, an L/C is only as strong as its clauses: if payment requires "a certificate of acceptance issued by the applicant", it is a revocable credit wearing a documentary-credit costume. Second, an L/C does not remove the need for a COA or a pre-shipment inspection. It guarantees that paper moves; the paper still has to be the right paper, which is why COA verification matters as much under an L/C as under T/T.

A usance L/C at 60 or 90 days from the B/L date shifts working capital back to the supplier. That is a real cost to them, and it will appear in the unit price. Decide whether you are buying carbon or buying credit.

What does a normal first order look like?

For a first container of gold-grade carbon from China, the most common structure is 30% T/T deposit with the balance against a copy of the bill of lading. It is common because it is roughly fair to both sides: the deposit covers raw material and the production slot, and the balance is released at the moment the cargo is demonstrably on a vessel.

A tighter variant, and the one worth asking for, splits the balance into tranches that each buy something:

If the ticket is small — a few hundred kilograms for a trial — many factories will ask for 50% or even full prepayment, because the fixed cost of a dedicated production run, QC and export documentation does not scale down. Do not fight the percentage in that case. Instead, hold the balance against the B/L copy rather than "before shipment", and require the pre-shipment sample and COA before any balance moves.

Why do suppliers ask for a deposit, and what does it legitimately cover?

A deposit is not a credit line and it is not a verdict on you. On coconut-shell gold carbon it covers costs that are genuinely committed before your container exists:

• Coconut shell charcoal bought upstream. Shell char is the largest single input cost and is normally paid on delivery, not on terms.
• A production run dedicated to one grade. Steam activation runs in batches, and your order locks a slot. Carbon cut to 6×12 mesh at iodine 1100 mg/g cannot simply be sold to the next buyer who wants 8×16 mesh at 1000 mg/g.
• Water polishing and de-flaking to hold platelet content below 1.5%. That is an extra pass on the material, not a free side effect of screening.
• Screening, QC, and the batch COA issued with the goods.
• Packaging bought in for your order: 25 kg laminated woven bags or 500–1000 kg jumbo bags. See packing options.
• Inland haulage from the plant in Longyan to the port of loading, plus space booking.

The deposit also buys queue position. In a busy quarter the order with a deposit gets a production slot; the order that is still "waiting for the board" gets whatever slot is left. Buyers who compare quotes line by line often miss that the delivery date moves with the payment terms, which is one reason a straight price comparison can be misleading — see how to compare gold carbon quotes.

How do you turn payment milestones into inspection rights?

Link each tranche to a document or a test you can verify without trusting anyone's summary. The clauses that do the most work:

• Pre-shipment sample drawn from the actual production lot, not from a showroom jar. Seal it and split it three ways: factory, buyer, and a third party or the inspection agency. Label it with the lot number, date and container it belongs to.
• Pre-shipment inspection by a named third party (SGS, BV, Intertek) or your own inspector on site. Write the scope into the contract: iodine by GB/T 12496.8 / ASTM D4607, hardness by ball-pan GB/T 12496.6 / ASTM D3802, apparent density by GB/T 12496.1 / ASTM D2854, moisture by GB/T 12496.4 / ASTM D2867, ash by GB/T 12496.3, and particle size distribution by GB/T 12496.2 / ASTM D2862. Vague scopes produce vague reports.
• Balance against the scanned B/L, not against a verbal loading confirmation. Ask for the whole set: B/L, invoice, packing list, COA, certificate of origin. Then check the B/L number on the carrier's own tracking page before you wire. A scanned copy is easy to produce; a container that appears on the shipping line's tracker is not.
• Loading evidence. Photographs of the bags or pallets inside the container, the seal on the door, and the container number plate, taken before the doors close. The seal number in the photo has to be the seal number on the B/L.
• COA-linked release. Make the final tranche conditional on the batch COA matching the contract within the agreed tolerance — for example ±50 mg/g on iodine against the ordered grade. If it does not match, the tranche does not release. The clause must then say what happens next: replacement, credit, or price adjustment. Without that, it is decoration.
• Retained sample clause. A sealed sample held by a named party for a named period. Ninety days after arrival is workable; six months is better if your plant only opens the last pallet late. This is the reference for any arrival dispute. Without it, disagreements become opinions.
• Arrival testing with a holdback. Keep 5–10% for 30–60 days and release it after your lab tests the arrival sample. That single clause buys more attention to detail than any paragraph about "strict quality control".

One quantity clause belongs in this list too. Apparent density for this grade runs 0.45–0.52 g/cm³, and on a fixed-volume basis 10 m³ holds 4,500 kg at 0.45 g/cm³ but 5,200 kg at 0.52 g/cm³ — about 700 kg, roughly 15%, between the two ends. Invoice on certified net packed weight (factory weighbridge ticket plus port weighbridge), not on "one container". Otherwise you can pay identical money for 15% less carbon and never see it in the paperwork. The same density range drives bed volume in the adsorption tanks — see packed bed and voidage.

First order vs long-term supply: two structures side by side

Payment structure should step down as trust is earned, in both directions. A factory that has shipped four clean lots to your plant should not still be charging first-order terms, and you should not expect a supplier to carry the risk once your own payment record is clean.

Write the step-down into the contract as a rule rather than a favour: deposit falls from 30% to 15% after four consecutive lots that test inside specification on arrival, and to open account after eight. Suppliers accept this more readily than buyers expect, because it costs them nothing until they have already proven themselves.

The three payment traps that cost buyers the most

1. Full prepayment

100% T/T in advance against a proforma invoice removes every lever you own. It is defensible only for a sample-size order small enough to write off. For a container it is hard to justify: the supplier's own risk is low, because the goods are not made yet — all that is exposed is a production slot, and a deposit already covers that.

2. Payment to a personal or third-party account

If the payment instruction shows a personal name, a relative's account, or a company with no visible link to the factory, stop and ask why in writing. Once funds are credited, a wire recall is effectively impossible; the money is gone and your only route is a foreign lawsuit. A real factory can produce a bank account certificate showing the account holder's legal name, and will not be offended by the request.

3. Beneficiary name that does not match the contract entity

The legal name on the contract, the proforma invoice, the bank account, the business licence and the COA should be the same string of characters. YELI Carbon (Xiamen Yeli New Materials Co., Ltd) is a coconut-shell activated carbon factory in Longyan, Fujian, China, producing gold CIP/CIL grade granular activated carbon — 6×12 mesh, iodine 1000–1300 mg/g, hardness ≥98%, platelet content <1.5%, with a COA issued for every batch. If a "sales manager" asks you to wire to a different company name, you may be paying someone who is not the seller. Offshore accounts in Hong Kong or Singapore are common and can be legitimate for a mainland exporter, but ask for the ownership link in writing before the first payment — and if the answers are vague, verify the factory before the deposit, not after.

Two smaller traps worth a line each. An L/C that requires the buyer's own acceptance certificate is not a payment guarantee. And if the contract is silent on bank charges, expect an argument: agree in advance who pays the correspondent bank fees (OUR, SHA or BEN) and in which currency the invoice is denominated.

Payment clauses worth pasting into your purchase order

• Beneficiary block: legal name, bank, SWIFT/BIC, account number, plus a statement that the account holder is the contract seller.
• Deposit percentage and the exact event that triggers it — a countersigned proforma invoice, or written confirmation of a production slot.
• Balance tranche and its trigger, defined by a document you can verify: scanned B/L showing container and seal number.
• Pre-shipment inspection: named agency or buyer's inspector, scope by test method, timing relative to loading, who pays.
• Retained sample: who holds it, for how long, sealed and labelled with lot, date and container number.
• Batch COA: issued with the goods, stating test methods and the ordered iodine grade; balance tranche conditional on it.
• Tolerance and remedy: iodine ±50 mg/g against the ordered grade, hardness ≥98%, platelet content <1.5%, with a stated remedy — replacement, credit or price adjustment — for out-of-spec arrival.
• Quantity basis: net packed weight per certified weighbridge ticket, with the apparent density basis stated (0.45–0.52 g/cm³).
• Bank charges and currency, named explicitly.
• Dispute route: which laboratory decides, and how many days after arrival a claim can still be raised.

None of these clauses is unusual, and none of them requires a supplier to accept new risk. They simply define what the money is buying at each step.

Frequently asked questions