Two more giant European banks have signed up to the Poseidon Principles — and backers of the ­initiative now have their sights set on big Chinese lenders.

BNP Paribas — which is by one measure the world’s largest lender to shipping — and leading wealth manager Credit Suisse became the 15th and 16th signatories.

Credit Suisse is seen as important due to its relationship with some major Greek shipowners.