EXA6
— Send data to a third party —
Trade Finance
Prove every clause of a letter of credit is satisfied — without exposing the trade.
The problem to solve
A letter of credit is a multi-party choreography: importer, exporter, both banks, often a confirming bank. Today every party sees every document — invoices, bills of lading, insurance certificates, supplier identities, agreed prices. Trade secrets leak through the LC chain by design. Banks need the certainty; the cost is everyone's commercial map.
The solution it enables
Polymonial lets each party seal their portion of the document set. Banks verify proofs that the LC terms are satisfied — invoice matches the agreed price, shipment matches the agreed port, insurance is in force — without seeing the documents themselves. Trade secrets stay between counterparties. Banks still get the certainty they need to release funds.
What it looks like
A UK importer buys goods from a Vietnamese exporter. Five parties handle the letter of credit: importer, exporter, both banks, and the confirming bank in Singapore. Each seals their documents. Polymonial generates proofs that every LC clause is satisfied — quantity matches, port of shipment matches, insurance is valid. The confirming bank verifies and releases funds. The importer's procurement price stays sealed from the exporter's competitors. The exporter's supplier list stays sealed from the importer.
“Five parties. One letter of credit. Five seals. Trade prices stay sealed.”
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