Letter of Credit · trade-finance
A Letter of Credit (L/C) is a written guarantee document issued by a bank at the request of an applicant (usually the buyer or project owner) to a beneficiary (usually the seller or contractor), promising to pay a certain amount when specific conditions are met. In the field of overseas engineering finance and insurance, an L/C is not only a payment instrument but also a core vehicle for credit enhancement, risk mitigation, and financing leverage.
From a legal perspective, an L/C is independent of the underlying contract. According to Article 4 of the International Chamber of Commerce's Uniform Customs and Practice for Documentary Credits (UCP 600), banks deal with documents and not with goods, services, or other performances to which the documents may relate. This means that as long as the beneficiary submits documents that strictly comply with the L/C terms, the issuing bank must pay and may not refuse payment on the grounds of disputes under the underlying contract. This "principle of independence" and "principle of strict compliance" constitute the cornerstone of the L/C system.
In overseas engineering scenarios, L/Cs typically appear in the following stages:
A distinction must be made between commercial L/Cs and standby L/Cs: the former is used for trade settlement of goods, while the latter is used to guarantee compensation for default, governed by the International Standby Practices (ISP98) or UCP 600. In overseas engineering, standby L/Cs are more commonly seen in scenarios such as performance guarantees and advance payment guarantees.
| Element | Description | Typical Data in Overseas Engineering |
|---|---|---|
| Amount | Face value of the L/C, usually 10%~30% of the underlying contract amount | Advance payment guarantee: 15%~20% of contract price; performance guarantee: 10%~15%; retention money guarantee: 5%~10% |
| Tenor | Period from issuance to expiry | Advance payment guarantee: until advance payment is fully deducted, usually 12~24 months; performance guarantee: until the end of the defects liability period, 24~36 months; retention money guarantee: 12~24 months |
| Fee Rate | Issuing fee, confirmation fee, amendment fee, etc. charged by the issuing bank | Issuing fee: 0.1%~0.5%/quarter (annualized 0.4%~2%); confirmation fee: 0.1%~0.3%/quarter; amendment fee: USD 50~200 per amendment |
| Applicable Scenario | Different L/Cs matched to different project stages | Bidding stage: bid bond (standby L/C); post-signing: advance payment guarantee, performance guarantee; execution: progress payment L/C, equipment procurement L/C; closing: retention money guarantee |
| Currency | Usually USD, EUR, or the currency of the project host country | USD accounts for approximately 65%, EUR approximately 20%, local currency approximately 15% |
| Issuing Bank | Bank in the applicant's location or an international bank | Sinosure partner banks, HSBC, Standard Chartered, Citibank, Deutsche Bank, etc. |
| Confirming Bank | Bank that adds confirmation to the L/C at the request of the issuing bank | In countries with high political risk, confirmation fees can reach 0.5%~1%/quarter |
| Payment Tenor | Sight or usance | Predominantly sight; usance commonly 90~180 days, with annualized discount cost of approximately 3%~6% |
Who initiates: In overseas engineering, the L/C is typically applied for by the contractor (as applicant) to a bank, with the beneficiary being the owner or supplier. If the owner needs to pay the contractor, then the owner is the applicant.
Where to apply:
How long:
What materials:
Key steps:
Case 1: China Communications Construction Company (CCCC) in the Kenya Mombasa-Nairobi Railway Project
The Mombasa-Nairobi Standard Gauge Railway had a contract value of approximately USD 3.8 billion, with CCCC as the general contractor. The owner, Kenya Railways Corporation, required the contractor to provide an advance payment guarantee and a performance guarantee, both issued in the form of standby L/Cs. CCCC issued through Bank of China an advance payment guarantee of 15% of the contract price (approximately USD 570 million) and a performance guarantee of 10% (approximately USD 380 million), with tenors of 24 months and 36 months respectively. Due to the high political risk in Kenya, the owner also required confirmation by Standard Chartered Bank Nairobi Branch, with a confirmation fee of 0.35%/quarter. During project execution, due to delays in land acquisition by the owner, the construction period was extended, and the contractor applied for extensions twice, with each amendment fee of approximately USD 150, and re-confirmation was required. The project was ultimately completed smoothly with no claims made.
Case 2: PowerChina in the Pakistan Karot Hydropower Project
The Karot Hydropower Project was the first hydropower project of the "China-Pakistan Economic Corridor," with a total investment of approximately USD 1.7 billion, and PowerChina as the EPC general contractor. Project financing was jointly provided by the International Finance Corporation (IFC) under the World Bank and the Export-Import Bank of China. The loan agreement required PowerChina to provide a standby L/C as repayment security, in the amount of 10% of the total loan (approximately USD 170 million), with a tenor of 6 months after loan maturity. The issuing bank was ICBC, governed by ISP98. Due to strict foreign exchange controls in Pakistan, ICBC required PowerChina to provide 100% margin deposit or equivalent pledge. During project execution, due to the depreciation of the Pakistani Rupee, the contractor locked in the exchange rate through forward settlement, avoiding approximately USD 8 million in exchange losses.
Case 3: China Railway Construction Corporation (CRCC) in the Saudi Arabia Mecca Light Rail Project
The Mecca Light Rail Project had a contract value of approximately USD 1.77 billion, with CRCC as the general contractor. The owner, the Saudi Ministry of Municipal and Rural Affairs, required a performance guarantee of 10% of the contract price (approximately USD 177 million) and a retention money guarantee of 5% (approximately USD 88.5 million), both issued in the form of irrevocable standby L/Cs, governed by UCP 600. The issuing bank was Bank of China, and the confirming bank was National Commercial Bank of Saudi Arabia. During project execution, because Saudi law required the guarantee to be "unconditional, irrevocable, and payable on demand," and governed by Saudi law, CRCC engaged local lawyers to review the format before issuance, avoiding potential legal conflicts. The project ultimately incurred a loss of approximately RMB 4.1 billion, but no claims were made under the guarantees, mainly because the contractor negotiated with the owner to extend the construction period and adjust the contract terms.
Contract clause pitfalls:
Legal difference pitfalls:
Exchange rate risk:
Cultural difference pitfalls:
Other risks:
| Solution | Definition | Cost | Risk | Applicable Scenario |
|---|---|---|---|---|
| Commercial L/C | Used for trade settlement of goods, bank promises payment | Issuing fee 0.1%~0.5%/quarter | Document discrepancy risk | Equipment and material procurement |
| Standby L/C | Used to guarantee compensation for default, governed by ISP98 | Issuing fee 0.2%~0.6%/quarter | Payable-on-demand risk | Advance payment guarantee, performance guarantee |
| Bank Guarantee | Bank directly issues a guarantee letter | Guarantee fee 0.3%~0.8%/quarter | Legal difference risk | All stages of overseas engineering |
| Insurance Guarantee | Insurance company issues a guarantee | Premium 0.5%~1.5%/year | Insurance company credit risk | Substitute for bank guarantee, saves credit line |
| Cash Margin | Contractor directly deposits cash | Fund occupation cost | Liquidity risk | Small projects or mandatory owner requirement |
| Parent Company Guarantee | Parent company issues a guarantee letter | No direct cost | Parent company credit risk | Subsidiary's overseas projects |
| Supply Chain Finance | Financing based on accounts receivable | Discount 3%~6%/year | Accounts receivable collection risk | Progress payment financing |
Selection recommendations:
Q1: What is the difference between an L/C and a guarantee?
A: An L/C is a bank's payment commitment, while a guarantee is a bank's surety. Commercial L/Cs are used for trade settlement, while standby L/Cs and bank guarantees are used to guarantee compensation for default. Standby L/Cs are governed by ISP98, while bank guarantees are governed by local law or URDG758.
Q2: In overseas engineering, why do owners require standby L/Cs?
A: Because standby L/Cs are independent of the underlying contract, payable on demand, with a low claim threshold for the owner, and bank credit is superior to corporate credit.
Q3: How much margin is required to issue an L/C?
A: Usually 10%~30%, depending on the enterprise's credit line, project risk, and issuing bank policy. For countries with high political risk, 100% may be required.
Q4: Can the L/C validity period be extended?
A: Yes, an amendment must be applied for from the issuing bank, with an amendment fee paid, and confirmation re-confirmed. Extension requires the owner's consent.
Q5: What is the "principle of strict compliance"?
A: Article 14 of UCP 600 requires strict compliance between documents and L/C terms, and between documents themselves. Banks have the right to refuse non-compliant documents.
Q6: What to do after refusal for discrepancies?
A: The beneficiary may revise the documents and resubmit, or request the issuing bank to contact the applicant to accept the discrepancies. If refused, arbitration or litigation may be pursued.
Q7: What rules govern standby L/Cs?
A: Usually ISP98 or UCP 600. ISP98 is specifically designed for standby L/Cs and is more flexible.
Q8: Who bears the payment responsibility, the confirming bank or the issuing bank?
A: The confirming bank independently bears the payment responsibility, the same as the issuing bank. If the issuing bank refuses payment, the confirming bank must still pay.
Q9: Can the L/C currency be RMB?
A: Yes, but overseas owners usually require USD or EUR. RMB L/Cs are feasible in cross-border RMB settlement pilot areas.
Q10: How to reduce L/C costs?
A: Choose insurance guarantees as substitutes, negotiate for the owner to accept direct issuance by domestic banks, apply for rate discounts through batch issuance, and lock in forward exchange rates.
Q11: What to do if an L/C is maliciously claimed?
A: Immediately apply for a court injunction to stop payment, but sufficient evidence is required. Overseas, injunctions are difficult to obtain; it is recommended to include arbitration clauses in the contract in advance.
Q12: How to cancel an L/C after expiry?
A: The beneficiary submits a cancellation application, and the issuing bank cancels after confirming no outstanding documents, releasing the margin.
Q13: How does the advance payment guarantee amount decrease?
A: It usually decreases in sync with the deduction of the advance payment, and a clause stating "automatically decreasing as the advance payment is deducted" must be specified in the guarantee.
Q14: Can an L/C be transferred?
A: A transferable L/C must be marked "transferable" and can only be transferred once. It is rarely used in overseas engineering.
Q15: What support does Sinosure provide for L/C business?
A: Sinosure provides export credit insurance, guarantee insurance, and overseas investment insurance, which can substitute for bank guarantees and reduce enterprise credit line occupation.
The above content is based on UCP 600, ISP98, FIDIC contract conditions, and public information from Sinosure and the World Bank, combined with actual overseas engineering cases. For specific business matters, please consult professional banks or insurance institutions.