Macquarie strongly supports the objectives behind the Poseidon Principles banking alliance targeting decarbonisation, but is not yet a signatory.

The mechanics of data collection related to the Poseidon project have been the sticking point to joining the signatories, according to Marc Hari, Macquarie's head of shipping finance.

"We are 100% committed to the objectives, as can be seen in the activities of the broader Macquarie Group," he told TradeWinds.