Payment Terms in Bulk Commodity Trade: TT, LC, Collections and Open Account

No payment term removes risk from a bulk commodity deal; each one moves it. Advance payment puts the risk on the buyer, open account puts it on the seller, and letters of credit and documentary collections sit between the two, with different costs, speeds and ways of failing. Choose the structure that fits the relationship, the size of the cargo and the country risk, then make sure the Incoterm and the documents support it.

This guide compares the main payment structures for bulk petrochemicals, fertilisers and minerals, explains how Incoterms interact with payment, and gives decision rules for choosing. It is general guidance, not legal or banking advice. Your bank, your lawyer and the wording of your contract decide what actually applies to your transaction.

What each side is afraid of

Payment terms exist because each party has a different worst case.

The seller fears:

• Shipping and not being paid, or being paid late.
• The buyer refusing the documents or the cargo after it has sailed, leaving the seller with a ship in transit and no buyer.
• The buyer's bank or country failing to release foreign currency.
• A payment being blocked by a compliance check.

The buyer fears:

• Paying and not receiving the cargo.
• Receiving cargo that is off-specification or short.
• Being paid against documents that look right but are false or inconsistent.
• Fraud, including redirected payments sent to a criminal's account.

Both fear unexpected bank charges, exchange rate swings, delays inside intermediary banks, and disputes after discharge. Every structure below is a different answer to the question "whose worst case are we protecting?"

Advance payment by telegraphic transfer (TT)

A TT is a bank-to-bank wire. In advance payment the buyer pays before shipment, either in full or as a deposit with the balance due later.

Seller's view. The safest structure: money is in the bank before cargo moves, and there are no bank documents to get wrong. It is cheap and quick.

Buyer's view. The buyer carries the full risk that the seller does not ship, ships late, or ships something other than what was agreed, and the claim becomes a dispute against a foreign party.

Controls that make advance payment safer for a buyer:

1. Verify the seller before paying. See our guide on how to verify a petrochemical supplier.
2. Pay only to an account in the seller's company name, in the seller's country of registration, confirmed through a channel you already trust.
3. Treat a change of bank details as a fraud alert. Call a known number before paying. Do not rely on an email that arrives with new account details.
4. Pay a deposit, not the full price. Tie the balance to evidence of loading.
5. Tie payment to independent inspection. Chemineral can arrange SGS or Intertek pre-shipment inspection, so that quality and quantity are confirmed by a third party before the balance is released.

Advance payment suits small spot lots, buyers who have verified the seller, and destinations where the seller cannot accept bank or country risk.

Letter of credit (LC)

An LC is a bank's undertaking to pay the seller when the seller presents documents that comply with the credit's terms. The buyer is protected because the bank pays only against the documents the buyer specified. The seller is protected, particularly with confirmation, because payment no longer depends on the buyer's goodwill. The weakness is that banks examine documents, not cargo, and the slightest mismatch can stop payment.

Our letter of credit guide covers sight and usance credits, confirmation, standby letters of credit, UCP 600 and the common discrepancies. For this comparison, the points that matter are:

• For the seller: an LC converts buyer risk into bank risk. A confirmed credit from a bank in the seller's country also removes the issuing bank and country risk. The risks that remain are the seller's own: a credit it cannot comply with, a late shipment, or a documentary error.
• For the buyer: the credit controls what the seller must present. It does not guarantee the cargo is right. To get evidence of quality and quantity, require an independent inspection certificate as a document under the credit.
• Cost and time: an LC needs bank fees, a credit line or margin at the buyer's bank, and time to draft and amend. For small cargoes the fixed costs can be heavy relative to value.
• Standby LCs are a back-up that supports open account or deferred payment by giving the seller a claim on a bank if the buyer defaults.

Documents against payment and documentary collection

In a documentary collection the seller ships and sends the shipping documents to its own bank, which forwards them to a bank in the buyer's country. The buyer's bank releases the documents only on payment (documents against payment, D/P) or on the buyer's acceptance of a draft payable later (documents against acceptance, D/A). The ICC's Uniform Rules for Collections (URC 522) govern the process in most cases.

What it gives the seller. Control of the documents until the buyer pays or accepts. If the bill of lading is a negotiable original consigned to order, the buyer cannot take the cargo without it. Costs are lower than an LC.

What it does not give. The banks handle paper and do not guarantee payment. The buyer can refuse to pay or accept. If that happens, the cargo sits at the discharge port, where storage and demurrage accumulate, and the seller must find another buyer, negotiate, or ship the cargo back. Collection is therefore safest with products that are easy to resell, to a buyer the seller knows.

What it gives the buyer. The buyer pays only when the documents arrive, but documents are not goods. Without an independent inspection certificate in the set, the buyer is paying on the seller's word.

Watch the wording. "Cash against documents" (CAD) is used loosely. It may mean payment by TT on presentation of scanned copies, or payment through a bank against originals. D/A is a form of credit for the buyer, and it leaves the seller exposed until maturity. Write down exactly what triggers payment, who holds the originals, and what happens if the buyer does not collect them. Releasing cargo by telex release or sea waybill removes the control that makes D/P work in the first place.

Open account and credit insurance

Under open account the seller ships and the buyer pays on agreed credit terms, for example a stated number of days after the bill of lading date or after discharge. The seller finances the buyer and carries the buyer's credit risk.

Open account suits long-standing relationships where the buyer has a good payment record and the seller can afford the exposure. Ways to reduce the risk:

• A standby LC or bank guarantee from an acceptable bank.
• Credit insurance. A policy under which an insurer covers the risk that the buyer fails to pay. In general terms, the insurer assesses each buyer, sets a limit, charges a premium, and pays on events such as buyer insolvency or protracted default after a waiting period. It may leave a share of the loss uninsured, may not cover political risks unless the policy says so, and depends on the seller following the policy conditions, such as notifying overdue accounts on time.
• Receivables finance, where a financier buys or lends against the invoice. It is a funding tool and removes the risk only if it is non-recourse.

Credit insurance is not a substitute for knowing your buyer, and it does nothing about quality disputes. A buyer who rejects the cargo for being off-specification has a disputed debt, and insurers do not usually pay disputed debts.

Escrow and staged payments

When neither side wants to go first, split the payment.

Staged payments divide the price into instalments tied to events: a deposit on signing, a payment when the cargo is loaded and inspected, a balance on presentation of the original documents. Each stage shrinks one party's exposure and moves the other party's leverage.

Escrow places the money with a third party that releases it when agreed conditions are met. It helps both sides only if three things hold:

1. The holder is genuine and regulated. Fake escrow websites are a known fraud pattern, particularly when the counterparty insists on choosing the agent. Use a bank or reputable law firm that you have checked yourself.
2. The release conditions are objective documents. For example, a bill of lading and an independent inspection certificate, not "buyer's satisfaction".
3. The dispute route is written down. What happens if the buyer says the conditions are not met and the seller says they are?

A hypothetical staged payment

The amounts and percentages below are invented to show the method. They are not recommended terms.

Assume a hypothetical cargo worth USD 400,000.

Before loading, the buyer is exposed for USD 80,000 (20%). After stage 2 the buyer has paid USD 280,000, but with an inspection certificate in hand and the cargo on board. The seller's unpaid exposure at that point is USD 120,000 (30%), protected by control of the original documents. Neither side carries the whole price at any moment. The weak points are that the buyer must trust the inspection and the release of originals, and the seller must trust the buyer to pay the balance. Cover those in the contract.

Comparing the structures

How Incoterms interact with payment

Incoterms 2020 decide who arranges and pays for transport and insurance, and where risk passes from seller to buyer. They do not say when or how the price is paid, and they do not transfer ownership. Those must be written into the contract. Our Incoterms 2020 guide explains the rules in full; these are the points that touch payment.

• FOB. Risk passes when the goods are on board the vessel the buyer nominated at the loading port. The buyer is exposed from that moment, so payment terms that depend on the cargo's condition at discharge fit awkwardly. If the buyer wants protection, the loading-port inspection certificate is what counts, and payment should be tied to it.
• CFR and CIF. The seller contracts and pays for the main carriage, and under CIF for insurance, yet risk still passes at the loading port, as under FOB. Buyers sometimes assume "seller arranges shipping" means "seller carries the voyage risk"; it does not. With CIF, the insurance document is part of the document set, and an LC will usually call for it.
• DAP and DDP. Risk passes at destination, so the seller carries the voyage. The seller then often wants stronger security, because payment may be linked to delivery and the seller's cash is tied up during the whole voyage.

Tie the payment trigger to a documented event

Write the due date from a fixed, provable event: the bill of lading date, presentation of documents, discharge, or the date of an inspection certificate.

Route affects this. A payment due a set number of days after the bill of lading date leaves the buyer less time after arrival on a longer route. Chemineral quotes Suez and Cape routing side by side so the buyer can see the time difference behind each price; check which transit time your payment days assume.

Control of the bill of lading

Whoever holds a negotiable original bill of lading can claim the cargo. Structures that depend on document control (D/P, LC, final-stage payment) fail if the bill is released early by telex release or replaced by a sea waybill. Our export shipping documents guide explains which documents are needed and where errors arise.

Currency and charges

State the currency and who pays each bank's charges. In international payments the codes OUR, SHA and BEN indicate who bears the charges, and the wrong code can cause a short payment that the seller then disputes. Say in the contract how such shortfalls are corrected.

Compliance checks

Banks screen parties, vessels, routes and goods, and a payment can be held if a name or description triggers a check. Give the bank complete, consistent information and allow time.

How to choose

Work through these rules in order.

1. Do you know the counterparty? If not, verify them first. Then use a structure that does not depend on trust: an LC, or staged payments tied to inspection.
2. How large is the cargo? On a small lot LC fees may outweigh the protection; on a large cargo a documentary credit or staged structure is easier to justify.
3. What are the bank and country risks? If the issuing bank or country is a concern, ask for confirmation, advance payment or a standby.
4. Is the cargo easy to resell if the deal fails? Fertilisers, sulphur and similar commodities with deep markets let a seller recover from a stranded cargo more easily than a product made to one buyer's specification.
5. How strong is the history? A good record supports looser terms: part advance, D/P, or open account with insurance.
6. Does the payment trigger match the Incoterm? An FOB buyer should connect payment to loading-port evidence. A DAP seller should expect delivery-linked payment and price the risk.
7. Can the seller comply with the documents? An LC it cannot meet is worse than no LC.
8. Is everything written down? Method, currency, triggers, charges, documents, deadlines, late payment consequences and dispute route.

Red flags

• A request to pay a third-party account, or one in a country unrelated to the seller, or a last-minute change of bank details by email.
• "SBLC leasing" or "monetisation" offers from intermediaries.
• An LC that arrives by email from an unfamiliar bank instead of through bank channels.
• An escrow provider proposed by the other party that you cannot verify independently.

Payment terms are agreed per transaction and depend on the product, volume, destination and history between the parties. Raise your preferred structure at quotation stage, not after the offer is accepted.

Frequently asked questions

Which payment term is safest?

None is safe for both sides. For a seller, a confirmed LC or advance payment gives the most protection. For a buyer, an LC with an independent inspection certificate among the required documents, or staged payments tied to inspection, gives the most. The right choice is the one that balances the two sides' risks at an acceptable cost.

Is a letter of credit always better than a bank transfer?

No. An LC adds cost, documentary risk and set-up time. For small cargoes or trusted repeat buyers a TT structure can be cheaper and quicker; for large first deals or higher country risk an LC is often worth it.

Does a documentary collection guarantee payment?

No. The banks follow the instructions and pass the documents, but they do not guarantee that the buyer will pay or accept. The seller keeps document control until payment, which helps if the cargo can be resold.

Do Incoterms say when payment is due?

No. Incoterms allocate costs and risk of transport and delivery. The payment method, due date, currency and any link between payment and delivery events must be written into the contract.

Does credit insurance cover a buyer who rejects the cargo?

Generally no. Insurers cover non-payment risks such as insolvency or protracted default, and typically exclude debts that are in dispute. A quality dispute can suspend cover until it is resolved.

Next step

If you plan a purchase from Sohar or Salalah and want payment structure, inspection and documents agreed before you commit, send your product, quantity, destination and preferred terms through the Chemineral trade desk. Firm offers are valid for 72 hours, so it helps to settle the payment terms before the offer lapses.