Standby Letters of Credit & ISP98

A Standby Letter of Credit is a credit-support instrument — distinct from a Documentary Letter of Credit. A DLC is a payment instrument that pays the seller against complying shipping documents on every cargo. An SBLC pays the beneficiary only on a stated default under the underlying contract, and otherwise sits idle.

For multi-shipment supply contracts — annual NPK frame, KTDA tea-cycle fertilizer, long-term wheat supply to a major miller — the SBLC is the structural fit. SBLCs are not typically used for single-shipment cargo, where a DLC under UCP 600 or an APG under URDG 758 is the right instrument.

Governing Rules

The choice between ISP98 and URDG 758 is functional, not geographic. ISP98 is not a US-domestic rulebook — it is the international standby-specific rulebook. URDG 758 is the international demand-guarantee rulebook. Where the SBLC behaves like a standby (paid only on stated default, with a single demand-and-statement trigger), ISP98 is the natural fit. Where the structure looks like a demand guarantee in a standby form, URDG 758 may be selected. The applicable rule is specified in the SBLC text and tagged in the SWIFT MT760 message field 40C.

URDG 758 has no confirmation mechanism. Where an SBLC governed by URDG 758 needs local-bank recourse for the beneficiary, the structure is the counter-guarantee under URDG 758 Articles 2 and 22 — see the URDG 758 page for the two-instrument chain.

SBLC vs. DLC — Operational Comparison

SBLC Lifecycle

1. SPA executed with rolling-supply terms (e.g. 12-month NPK frame at 25,000 MT per quarter)
2. Issuing bank issues SBLC via MT760 to beneficiary (seller's bank), with field 40C tagged ISP98 or URDG 758
3. Per-shipment invoicing under the SPA — shipping documents released against TT settlement on each cargo
4. SBLC remains in force as security for the contract duration; called only on default
5. Termination at contract expiry, or on call

Use Cases

Multi-shipment annual SPA — fertilizer, grain, edible oils

Where a cargo sits inside an annual frame contract — for example, 200,000 MT urea over 12 months in 4 quarterly shipments — the SBLC structure provides:

• Rolling credit to the seller without per-shipment LC issuance fees
• Document-light per-shipment release — TT against shipping documents
• Single instrument covering the contract duration
• Default protection for the seller against non-performance

KTDA tea-fertilizer 12-month framework

KTDA's NPK 26:5:5 is procured annually but delivered in scheduled lots across the tea-cycle calendar. An SBLC under ISP98 or URDG 758 covering the contract period is the standard structure.

Long-term wheat supply to major millers

Unga Group's 500,000+ MT annual wheat throughput is structured against multi-shipment supply contracts. SBLC support for the annual contract — combined with per-cargo TT MT103 settlement — enables the price discipline and counterparty trust that the Russian Black Sea wheat trade requires.

Confirmation

Confirmation under ISP98 is grounded in Rule 1.11(c) (which addresses interpretation) and Rule 2.01(b) (which sets out the confirmer's separate undertaking when added to the SBLC). The confirming bank adds its own irrevocable undertaking parallel to the issuer's — typically required where the issuing-bank country risk is unacceptable to the beneficiary.

For URDG 758, confirmation does not exist as a structural mechanism. The functional equivalent is the counter-guarantee under URDG 758 Articles 2 and 22.

For Russia / CIS-origin SBLC flow into Kenya, the European-prime confirming-bank universe has narrowed materially through 2022–2026. Commerzbank Frankfurt stopped new Russia business in 2022 and re-confirmed in March 2025 it will continue the exit even after a ceasefire; not a primary route for new East African Russia-touching cargoes. RBI Vienna is in active wind-down under ECB SREP measures (sale to local buyer blocked October 2025). Operational routing in 2026 leans on AED via Mashreq / Emirates NBD and CNY via CIPS direct participants. Confirmation cost in 2025–26: 1.5–4% per annum.

SWIFT MT760

The instrument vehicle is MT760. Key fields:

• 22A — Purpose of message (issuance / amendment / cancellation)
• 23 — Further identification
• 26E — Number of amendments
• 30 — Date of issue
• 40C — Applicable rules (ISP98 / URDG / UCP)
• 31E — Date of expiry
• 32B — Currency / amount
• 39A — Tolerance
• 50 — Applicant
• 59 — Beneficiary
• 77C — Details of guarantee / standby

Amendments use MT767. Acknowledgements use MT768.

Authoritative Sources

• ISP98 — ICC Publication No. 590
• URDG 758 — ICC Publication No. 758E
• James E. Byrne, The Official Commentary on the International Standby Practices ISP98 — Institute of International Banking Law & Practice
• ICC, Standby Practice — A Comparison of UCP 600, ISP98 and URDG 758 (Banking Commission discussion paper 2014)
• ICC Banking Commission Opinions — https://iccwbo.org/business-solutions/banking-finance/icc-opinions/

How Sarpah Supports

Sarpah is not on the SBLC. The buyer's bank issues; the seller's bank advises or — where required — confirms. What Sarpah does is help structure the SPA so that the rule-set choice (ISP98 versus URDG 758), the trigger language, the demand-statement form and the confirmation arrangement match what both banks can comfortably operate.