Charles Thain Partner, Mayer Brown Charles Thain is a Partner in the Global Trade Finance practice at Mayer Brown, based in London. He acts for financial institutions, corporates, asset managers and private credit funds advising in relation to various domestic and cross-border working capital products including receivables finance, supply chain/payables finance, inventory monetisation, asset-based lending (ABL), and trade finance. Charles advises both in respect of originating trade assets and distributing them.