Prime Infrastructure Holdings Limited, formerly Babcock & Brown Infrastructure Limited, is a specialist infrastructure company. The Company owns and manages a portfolio of infrastructure assets. The Company invests in businesses across two operating platforms based on its underlying economic drivers, such as utilities and fee for service. The portfolio of infrastructure assets is primarily in the energy and transport sectors located in Australasia, North America and Europe. As of June 30, 2010, it comprises 26.4% interest in Natural Gas Pipeline Company of America, 100% interest in International Energy Group�s island distribution businesses, 100% interest in Tas Gas Networks, 100% interest in WestNet Rail and 66.1% interest in Euroports S.a.r.l (Euroports). On July 28, 2009, it sold 33.89% of its interest in Euroports. In December 2010, the Company was acquired by Brookfield Infrastructure Partners L.P.