Due Diligence Before Issuing an LC or SBLC in an International Transaction

An LC or SBLC request can create exposure before the goods move. Your bank reviews the proposed instrument; factual diligence tests the parties, authority and supply claims behind it. Neither task should be assumed to have been completed merely because the other has started.

In this article

The short answer

Before requesting issuance, reconcile applicant, beneficiary and commercial parties; verify the authority and supply claims supporting the request; and give the bank and counsel a dated account of unresolved facts.

Understand the documentary boundary first.

A documentary letter of credit is commonly used as a payment mechanism against a complying presentation. A standby letter of credit commonly supports an obligation if specified drawing conditions are met. Their actual operation depends on the wording, rules and applicable law. These are not interchangeable products, and this guide does not select one for your transaction.

Under UCP 600, when the credit expressly incorporates those rules, Article 4 treats the credit as separate from the underlying contract; Article 5 addresses documents rather than goods or performance. Article 1 also addresses application to standbys to the extent applicable. Do not assume UCP 600 governs every LC or SBLC: ask your bank and counsel which rules and conditions apply.

Reconcile the instrument parties with the commercial parties.

Place the proposed applicant and beneficiary beside the contractual buyer, seller, producer, exporter and guarantor, if any. Use legal names and identifiers, not shortened group labels. Investigate differences. The beneficiary may differ from a familiar producer named throughout the presentation, and that difference can be central to the exposure.

For Brazilian entities, check recorded identity through CNPJ and relevant corporate powers through the appropriate instruments. For an offshore entity, use its own competent sources. Ask who authorized the instrument request and any proposed changes. A broker’s instruction cannot establish the powers of the principal or the beneficiary’s entitlement.

Identify what is known before issuance, not promised afterward.

Put the proposed sequence in order: producer confirmation, allocation, issuance, production or loading, presentation and payment. Record which claims are asserted as already established and which remain conditional. If goods will only be sourced after issuance, do not describe the proposed allocation as current verified stock.

Seek evidence tied to the product, volume, period and relevant seller. A registered producer and a generic mandate can be genuine while leaving the seller’s supply access unanswered. Current lot confirmation, a production arrangement or custody evidence may require authorized access that public databases cannot provide. Report the gap rather than treating the banking structure as its solution.

Ask the bank how material conditions become document requirements.

Do not assume that a commercial expectation written in a contract will be tested by the bank. Under UCP 600 Article 14(h), a credit condition without a stipulated document indicating compliance is treated as not stated for documentary examination. Discuss how relevant conditions are expressed and evidenced with the bank and counsel; do not draft them from a generic online procedure.

The investigative task is to identify who could truthfully issue the supporting evidence and what it could establish. A certificate supplied by the beneficiary, a third-party inspection and a producer confirmation are not equivalent. The documentary mechanism and the reliability of its underlying issuer deserve separate attention.

Keep bank authentication with the banks.

A bank logo, draft instrument or purported message forwarded by an intermediary is not independent confirmation that a bank issued, advised or accepted anything. Use the client’s bank and its authorized channels for those questions. An investigator should not claim access to private messaging systems, balances or an institution’s internal authentication.

Compare the commercial identities, dates, beneficiary and chronology in the materials without upgrading that comparison into bank authentication. Handle sensitive documents through agreed secure arrangements. If instructions change, verify the change using an independently established route and ask the relevant professionals which earlier assessments or approvals it affects.

Give the pre-issuance meeting a usable evidence pack.

Deliver a concise, versioned handover rather than a reassuring statement that “diligence is complete.” Identify the proposal examined, findings on the material parties, authority evidence, supply support, beneficiary explanation and open points. Separate a document you received from a fact you independently corroborated.

Assign each remaining question to the professional who can answer it. The bank assesses instrument mechanics, counsel legal effect and protections, an appropriate specialist physical or technical claims, and the authorized client team the commercial decision. Any decision to proceed with unresolved facts should be visible in that process, not hidden in an appendix.

Pre-issuance handover

Current instrument request and underlying agreement: [versions] Applicant / beneficiary / commercial parties: [reconciled differences] Authority evidence: [ ] Supply claim and independent support: [ ] Facts still conditional at issuance: [ ] Issuer of each proposed supporting document: [ ] Questions for bank / counsel / technical specialist: [ ] Material change since review: [ ]

Sources & editorial notes

Official and professional references for the relevant sections. The workflows, comparisons and fictional examples are editorial analysis, not instructions issued by the cited institutions.

  1. UCP 600: Articles 1, 4, 5 and 14 on documentary creditsICC Digital Library (opens in a new tab)
  2. Consult a Brazilian corporate registration (CNPJ)Brazilian Federal Revenue Service (opens in a new tab)
  3. Trade finance: rules, standards and guidanceInternational Chamber of Commerce (opens in a new tab)

Reference pages checked 22 September 2026. Consult current records for your transaction; status, requirements and access can change. Some resources are in Portuguese or another source language.

General investigative information, not legal, banking, investment, credit, sanitary or technical advice. Examples are fictional, not client results. Official records do not verify a particular counterparty or transaction beyond their stated scope.

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