The security being reported is beneficially owned by 1818 Master Partners, Ltd., of which Brown Brothers Harriman & Co is a control person based upon its holding of all the voting interests in, and directing the management of, 1818 Master Partners, Ltd. By virtue of a resolution adopted by Brown Brothers Harriman & Co. ("BBH&Co.") designating Richard H. Witmer and Timothy E. Hartch, or either of them, as the sole and exclusive persons at BBH&Co. having voting power (including the power to vote or to direct the vote) and investment power (including the power to dispose or to direct the disposition) with respect to all investments of 1818 Master Partners, Ltd., Mr. Hartch and Mr. Witmer may be deemed to beneficially own 5,887,625 shares of Diploma PLC. |