Holders of each Pari Passu Class shall vote together as a single Class in connection with any supplemental indenture, except that the holders of any Pari Passu Class shall vote separately by Class with respect to any amendment or modification of this Indenture solely to the extent that such amendment or modification would by its terms directly affect the holders of one such Pari Passu Class of Debt exclusively and materially differently from the holders of the other such Pari Passu Class of Debt.
