X0708 D LIVE 0001728334 GIP III Zenith Co-Invest Holdings, L.P. 12 East 49th Street, 38th Floor New York NY NEW YORK 10017 212-315-8100 CAYMAN ISLANDS None None Limited Partnership true 2017 N/A GIP III Zenith Co-Invest GP, Limited 12 East 49th Street, 38th Floor New York NY NEW YORK 10017 Executive Officer General Partner of Issuer Joseph Blum c/o Global Infrastructure Partners The Peak, 5 Wilton Road London X0 UNITED KINGDOM SW1V 1AN Executive Officer Jonathan D. Bram c/o Global Infrastructure Partners 12 East 49th Street, 38th Floor New York NY NEW YORK 10017 Executive Officer William Brilliant c/o Global Infrastructure Partners 12 East 49th Street, 38th Floor New York NY NEW YORK 10017 Executive Officer Matthew C. Harris c/o Global Infrastructure Partners 12 East 49th Street, 38th Floor New York NY NEW YORK 10017 Director Executive Officer Scott Hatton c/o Global Infrastructure Partners 12 East 49th Street, 38th Floor New York NY NEW YORK 10017 Executive Officer Mark Levitt c/o Global Infrastructure Partners 12 East 49th Street, 38th Floor New York NY NEW YORK 10017 Executive Officer Director Michael McGhee c/o Global Infrastructure Partners The Peak, 5 Wilton Road London X0 UNITED KINGDOM SW1V 1AN Executive Officer Gregg Myers c/o Global Infrastructure Partners 12 East 49th Street, 38th Floor New York NY NEW YORK 10017 Director Adebayo Ogunlesi c/o Global Infrastructure Partners 12 East 49th Street, 38th Floor New York NY NEW YORK 10017 Executive Officer Gary Pritchard c/o Global Infrastructure Partners 12 East 49th Street, 38th Floor New York NY NEW YORK 10017 Executive Officer Rajaram Rao c/o Global Infrastructure Partners The Peak, 5 Wilton Road London X0 UNITED KINGDOM SW1V 1AN Executive Officer Salim Samaha c/o Global Infrastructure Partners 12 East 49th Street, 38th Floor New York NY NEW YORK 10017 Executive Officer Robert Stewart c/o Global Infrastructure Partners 12 East 49th Street, 38th Floor New York NY NEW YORK 10017 Executive Officer William Woodburn c/o Global Infrastructure Partners 12 East 49th Street, 38th Floor New York NY NEW YORK 10017 Executive Officer Pooled Investment Fund Private Equity Fund false Decline to Disclose 06b 3C.7 false 2018-01-04 false true true false 0 Indefinite 532871596 Indefinite false 2 0 0 0 false GIP III Zenith Co-Invest Holdings, L.P. /s/ Mark Levitt Mark Levitt Director of the General Partner of Issuer 2018-01-18