NGC Holdings Limited(NGC) Formerly known as Natural Gas Corporation Holdings Limited. The Group's principal activities are natural gas acquisition, processing, transmission and distribution; LPG distribution and retailing; gas and electricity retailing and marketing; and provides investment, management and contract services. It operates solely in New Zealand. Natural gas and transportation fees accounted for 43% of fis 2002 revenues; electricity , 39%; liquids, 10% and others, 8% .