“…of a company can do by formal resolution in a general meeting they can also do informally if all of them assent to it: Ciban Management Corpn v Citco (BVI) Ltd [2020] UKPC 21 (“Ciban”) at [31] per Lord Burrows JSC. It takes its name from Re Duomatic Ltd [1969] 2 Ch 365, although the principle itself long pre-dates it and can be foun…”