Letters of Credit in Commodity Trading: A Complete Guide

A letter of credit (LC) is a bank-issued payment guarantee that assures the seller they will receive payment upon presenting documents that comply with the LC terms. The buyer's bank (issuing bank) commits to pay the seller (beneficiary) when the seller submits specified documents — typically a bill of lading, commercial invoice, packing list, certificate of origin, and quality inspection certificate — that meet the LC conditions exactly.

The LC mechanism transfers credit risk from the buyer to the issuing bank, providing the seller with bank-quality payment assurance. For the buyer, the LC ensures that payment is only released when the seller provides documentary evidence that the goods have been shipped as contracted. This balanced risk allocation is why LCs dominate international commodity trade.

Irrevocable LCs cannot be modified or cancelled without the consent of all parties and provide the strongest payment security. Confirmed LCs add a second bank's payment guarantee (the confirming bank, typically in the seller's country), providing additional protection if the issuing bank or its country presents credit or political risk. At-sight LCs require payment immediately upon compliant document presentation, while usance (or deferred payment) LCs allow the buyer a specified payment deferral period after document presentation.

Transferable LCs allow the beneficiary to transfer part or all of the LC to a second beneficiary, which is useful when the seller is an intermediary sourcing from a producer. Revolving LCs automatically renew after each drawing, suitable for repeat commodity shipments under long-term contracts. Red clause LCs include a provision for advance payment before shipment, helping sellers finance production.

The International Chamber of Commerce estimates that approximately 60-75% of LC document presentations contain discrepancies on first submission. Common discrepancies include misspelled names, incorrect LC numbers on documents, late presentation (documents submitted after the LC-specified presentation period), inconsistent descriptions of goods across documents, and missing required documents.

Each discrepancy gives the issuing bank grounds to refuse payment, creating delays and requiring the buyer to waive the discrepancy. To minimize discrepancies, sellers should review all LC terms immediately upon receipt, prepare a document checklist matching every LC requirement, use consistent commodity descriptions across all documents, and submit documents well before the presentation deadline.

LC costs include the issuing bank's commission (typically 0.1-1.5% of the LC value per quarter), the confirming bank's fee if applicable, amendment fees for any changes to the LC terms, and document handling charges. These costs are shared between buyer and seller as negotiated in the contract — commonly the buyer pays issuance costs and the seller pays negotiation/confirmation costs.

For commodity traders, maintaining LC facilities with their banks requires committed credit lines. Banks assess the trader's creditworthiness, trading history, and the specific commodities being traded before granting LC facilities. Building strong banking relationships and maintaining clean credit records are essential for securing adequate LC capacity at competitive pricing.