Short answer: a broker's mandate letter is only as good as the principal behind it. A genuine agent can name the producer or buyer it acts for, put you in contact with the person there who owns the contract, and state its commission in writing. A daisy chain cannot: each link holds a document from the next, and nobody has spoken to the seller. Before signing an NCNDA, sending an ICPO or sharing bank details, ask for one thing: a scheduled call with the named principal's contract owner, reached through the principal's own switchboard. Real agents arrange it; chains explain why they cannot.
Legitimate agency: three things a real agent can show
Intermediaries are a normal part of commodity trade. The legitimate ones have three things in common:
- A named principal. The agent acts for a specific producer, refinery, trading house or end buyer and says which.
- An accountable contract owner. Someone at the principal (a trader, sales manager or buyer) will sign or approve the contract and can be reached.
- A defined commission. A per-tonne or percentage fee, stated in writing and paid by the principal or under the sale contract, not by you upfront.
Some agents hold a continuing appointment; others introduce one deal. The law treats these differently, and definitions vary by country. In the European Union, for example, Directive 86/653/EEC defines a commercial agent as "a self-employed intermediary who has continuing authority to negotiate the sale or the purchase of goods on behalf of another person" (EUR-Lex, Council Directive 86/653/EEC, Article 1). What commission is owed, and when, depends on the contract and its governing law, and is outside this article's scope.
The daisy chain: how one offer acquires ten intermediaries
A chain forms when someone who has heard of an offer, often a forwarded PDF, passes it on with their own commission added, and the next person does the same. Each link has a "mandate" from the link above, or a letter from a company that claims one. The chain grows from both ends: buyer-side intermediaries attach themselves too, until a seller's "mandate holder" is talking to a buyer's "mandate holder" with nobody at either end.
ICC Commercial Crime Services has reported that buyers of commodities such as cement, urea and sugar "are frequently being targeted via the Internet or through intermediaries", with goods offered well below market value and contracts carrying bank guarantee, "Bank Comfort", "Proof of Funds" and non-circumvention/non-disclosure wording (ICC CCS, CCS uncovers commodity frauds, 22 November 2007).
Most chains are not run by fraudsters. They are run by hopeful people who cannot see past their neighbour. The effect is the same: no one can deliver, and the offer may not exist.
What the documents actually commit anyone to
These are market labels, not instruments defined by any official rulebook. Many circulate on forms headed "International Chamber of Commerce (ICC 400/500/600)". ICC has warned that "ICC Regulations 400/500/600" are "phoney references" and that "No such ICC documents or rules exist" (ICC, traders warned about non-existent ICC instruments, page dated 1 April 2005).
| Document | What it is in practice | What it proves |
|---|---|---|
| Mandate letter | A principal's authority for the holder to act | Only a signature, until the principal confirms |
| LOI (letter of intent) | A buyer's statement of interest, quantity and terms | Interest; usually commits no one to buy |
| ICPO | Buyer's "irrevocable" purchase order, often with bank details | Nothing about the seller; exposes the buyer |
| Soft or full corporate offer (SCO, FCO) | A seller's indicative, then "firm", offer | Whatever its issuer can deliver |
| Soft probe, BCL, proof of funds | Requests for the buyer's bank to show funds or comfort | Nothing about the goods |
| NCNDA | Non-circumvention, non-disclosure agreement | A promise not to bypass or disclose |
| IMFPA | Irrevocable master fee protection agreement: who is paid what | A commission schedule, not a sale |
A note on the term ICPO: in trade it means irrevocable corporate purchase order. The same letters also stand for INTERPOL, whose "full name is the International Criminal Police Organization" (INTERPOL, what is INTERPOL) and whose constitution is titled the "Constitution of the ICPO-INTERPOL" (INTERPOL, legal documents). A trade ICPO has nothing to do with the police.
Whether any of these documents binds its signatory depends on its wording and governing law. The practical point does not: none of them proves that a seller has goods or that a buyer has money.
The access test
One request resolves most chains: a scheduled call with the named principal's contract owner.
- Ask for the principal's legal name and the name and role of the person who will sign the sale contract.
- Find the principal's contact details yourself, from its official website, company register or an existing relationship, not from the intermediary's documents.
- Call the switchboard and ask for that person. Confirm that the offer, product, quantity and intermediary are known to them.
- Agree the next step with the principal directly, with the intermediary's role and commission written into it.
A real agent welcomes this: it protects their commission by fixing their role. A chain responds with reasons: the principal is confidential, the seller will "blacklist" buyers who call directly, you must first send an ICPO, or the call comes only after a soft probe. Each reason is a result. Checking that the principal exists at all is a separate task.
Non-circumvention: reasonable only with a principal
An agent who introduces a real principal has a fair interest in not being cut out. A narrow, time-limited non-circumvention clause, or a commission clause in the sale contract, is a recognised way to protect that interest; ICC publishes a model for it, the ICC Model Occasional Intermediary Contract, described as "memorializing classic non-circumvention and non-disclosure commitments" (ICC, model occasional intermediary contract (NCND)). ICC's Financial Investigation Bureau said in 2004 that ICC "has never published any rules on non-circumvention and non-disclosure agreements for these kind of contracts", and treated the phrase as a red flag in fake bank guarantees (ICC CCS, FIB warns of fake bank guarantees, 24 August 2004).
Without a principal, an NCNDA protects nothing, and an IMFPA listing six intermediaries on each side is a record of the chain's length. Signing one is usually cheap. The cost comes from what follows: your company details, bank details and purchase intentions circulated to people you have not identified.
Demands that arrive before a principal is identified
Treat these as a stop until the access test is passed:
- An ICPO or LOI with bank details on the seller's template, before you have seen a seller.
- A soft probe, bank comfort letter or proof of funds. ICC's FIB has said "any document claiming to be a Proof of Funds letter should be reviewed with caution" (ICC CCS, FIB warns of bogus proof of funds letter, 3 October 2007).
- A standby letter of credit "by MT760" before contract. A genuine standby supports a real contract; see standby letters of credit for commodity buyers.
- Any fee before the deal. A fee demanded before any contract with the principal is the classic advance-fee pattern; how those fee sequences escalate is covered in a separate article on SBLC leasing and instrument monetisation.
- Payment to an account not in the seller's name. Test any bank detail change as in payment redirection fraud in trade.
A real seller's procedure starts with a contract and a payment instrument its bank recognises, such as those compared in documentary collection or letter of credit.
Working with a good agent
A good agent earns the commission: knowing who produces what, reaching the right trader, translating specifications and speeding negotiation. To keep that relationship clean:
- put their role, principal and commission in writing, ideally in or alongside the sale contract;
- agree who pays the commission and when, for example per shipment on completed delivery;
- keep them informed and do not bypass them once they have introduced a real principal;
- refuse to pay them anything the principal should pay.
Worked example: four intermediaries, one request
Hypothetical teaching example. All parties and figures are invented; CU = currency units.
A buyer receives an offer for 12,500 t of white refined sugar per month for 12 months at 480 CU/t, with an IMFPA naming four intermediaries at 5 CU/t each.
| Item | Figure |
|---|---|
| Commission per tonne, four intermediaries | 20 CU/t |
| Commission per monthly lift | 250,000 CU |
| Commission over 12 lifts | 3,000,000 CU |
| Price left for the seller | 460 CU/t |
Before signing, the buyer asks intermediary D for the seller's name and contract owner. D refers the question to C, who says the mandate is confidential; B supplies a "seller's mandate letter" from a company that does not name the refinery; nobody offers a call. The buyer looks up the refinery the offer mentions, calls its sales office and asks whether the offer and company are known. They are not.
No ICPO was sent, no bank was asked for a comfort letter and no money moved. Had the chain produced the call, the buyer would have been negotiating with the refinery with one agent's role written down, and the 20 CU/t question would be one for the refinery.
Common mistakes
- Sending an ICPO or bank details to obtain a "full" corporate offer.
- Treating an NCNDA or IMFPA as evidence that a deal exists.
- Accepting "the seller does not take calls" as normal.
- Trusting an NCNDA, ICPO or offer because it is headed "ICC 400/500/600" or cites other ICC rules. Genuine ICC rules such as UCP 600 govern bank instruments, not broker paperwork.
- Paying any fee to an intermediary before a contract with the principal.
Limits and what to recheck
This article describes patterns; it does not assess any intermediary or offer. Commission entitlement, agency and non-circumvention enforceability depend on the contract and governing law and are out of scope; take legal advice in the relevant jurisdiction before relying on or disputing any of these documents. "Commodity broker" also describes regulated futures intermediaries; in the US, for example, an introducing broker "solicits or accepts orders to buy or sell futures contracts" and generally must register (NFA, introducing broker registration). That is a different activity from brokering physical cargo. The ICC and ICC CCS warnings cited are dated; recheck them and your local fraud reporting service.
FAQ
What is an ICPO in business? An irrevocable corporate purchase order: a buyer's written order, usually on a template supplied by an intermediary, often with bank details. The same letters abbreviate INTERPOL's formal name, which is unrelated.
Is an ICPO legally binding? That depends on its wording and governing law, which this article does not assess. Practically, it sends your company and bank details to parties you may not have identified, and you cannot recall them once sent.
What are an NCNDA and an IMFPA? A non-circumvention, non-disclosure agreement and an irrevocable master fee protection agreement. They protect intermediaries' introductions and fees; they do not show that goods or a seller exist.
What is a soft corporate offer? A seller's indicative offer, usually followed by a "full" offer once the buyer sends an LOI or ICPO. Test the seller before replying to either.
Next step: related reading
If the chain produces a real seller, read how much advance payment is reasonable before agreeing payment terms.
Resources
- International Chamber of Commerce — Traders warned about non-existent ICC instruments quoted on Internet (page dated 1 April 2005) — https://iccwbo.org/news-publications/news/traders-warned-about-non-existent-icc-instruments-quoted-on-internet/ (accessed 23 September 2026)
- International Chamber of Commerce — ICC Model Occasional Intermediary Contract (NCND) — https://iccwbo.org/business-solutions/model-contracts-clauses/icc-model-occasional-intermediary-contract-ncnd/ (accessed 23 September 2026)
- ICC Commercial Crime Services — FIB warns of fake bank guarantees (24 August 2004) — https://icc-ccs.org/fib-warns-of-fake-bank-guarantees/ (accessed 23 September 2026)
- ICC Commercial Crime Services — CCS uncovers commodity frauds (22 November 2007) — https://icc-ccs.org/ccs-uncovers-commodity-frauds/ (accessed 23 September 2026)
- ICC Commercial Crime Services — FIB warns of bogus proof of funds letter (3 October 2007) — https://icc-ccs.org/fib-warns-of-bogus-proof-of-funds-letter/ (accessed 23 September 2026)
- INTERPOL — What is INTERPOL — https://www.interpol.int/Who-we-are/What-is-INTERPOL (accessed 23 September 2026)
- INTERPOL — Legal documents — https://www.interpol.int/Who-we-are/Legal-framework/Legal-documents (accessed 23 September 2026)
- EUR-Lex — Council Directive 86/653/EEC on self-employed commercial agents (18 December 1986) — https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:31986L0653 (accessed 23 September 2026)
- National Futures Association (US) — Introducing broker registration — https://www.nfa.futures.org/registration-membership/who-has-to-register/ib.html (accessed 23 September 2026)
