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Category 6

Category 6 MT messages: commodities and reference data

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Category 6 covers the over-the-counter precious metals and commodities business between banks and dealers: trade and option confirmations (MT600, MT601), transfers and delivery orders (MT604), notices to receive (MT605), debit and credit advices (MT606, MT607), statements of a metal account (MT608) and fixed loan and deposit confirmations (MT620).

It also holds the standing settlement instruction update messages MT670 and MT671, used to tell counterparties about changes to settlement instructions.

Swift names the category Commodities and Reference Data. Swift’s MT and MX equivalence table lists no ISO 20022 equivalent for any category 6 message, and the category was not part of the November 2025 payments migration. Types retired from the category are listed at the end of this page where a public source confirms them.

17 message types in the current standard (0 with a full page), 5 retired.

Category 6 messages

Retired message types

No longer sent on the Swift network. Listed for people reading old messages or documentation.

Category 6 questions

What does category 6 cover?
Precious metals and commodities trading between institutions: confirmations, transfers, advices and statements, plus standing settlement instruction updates.
What is the difference between MT600 and MT300?
An MT600 confirms a precious metal or commodity trade; an MT300 confirms a foreign exchange trade.

Other categories

All MT messages · ISO 20022 messages · Codes · Troubleshooting