State immunity — Attachment and execution — Arbitration — Award in favour of private company against foreign State — Enforceability of award — Signature of arbitration clause — Undertaking not to rely on any immunity from attachment — Express waiver of immunity in relation to application of any arbitral award — Whether constituting waiver of diplomatic immunity from execution

State immunity — Immunity from attachment — Embassy bank accounts — Whether funds in such an account automatically covered by immunity — Whether finding that “accounts in question indisputably allocated for functioning of mission” sufficient — The law of France