Slaughter and May has cemented its ties with longstanding client Standard Chartered Bank, advising on the issue of a $15bn (£7.45bn) debt issuance prospectus and its $860m (£427m) acquisition of American Express Bank.

Slaughters took the lead for the group company, as well as subsidiaries Standard Chartered Hong Kong and Standard Chartered First Bank Korea, the issuers on the $15bn debt programme at the beginning of the month. Slaughters’ work continued as the bank agreed to acquire American Express Bank from American Express Company last week (18 September).