“It has … become conventional, at least in the Commercial Court, for interest to be awarded at US Prime Rate on compensation awarded in US dollars: see, for example, Kinetics Technology v Cross Seas Shipping (“The Mosconici”),[2001] 2 Lloyd’s Rep 313 at p.316 per David Steele J, Mamidoil-Jetoil Greek Petroleum Company SA v Okta Crude Oil Refiner, AD,[2003] 1 Lloyd’s Rep 42 at paragraph 16 perAikens J and AXL Resources Ltd v Antares Underwriting Services Ltd & another,[2010] EWHC 3244 (Comm) per Gloster J. This rate was described by Langley J in Kuwait Airways v Kuwait Insurance, [2000] 1 All ER (Comm) 973 at p. 992d/e as “The nearest equivalent of base rate plus 1%”, and he considered that “in normal circumstances”
“To give effect to the principle that arbitrators are to ascertain the cost of a short-term unsecured loan, we recommend that members should award 2.5% over LIBOR as this would be a reasonable average rate to charge a reasonably creditworthy company for an unsecured loan. In special cases (depending on the creditworthiness depending on the plaintiff) a higher or lower uplift may be appropriate.”