Transfield Services Limited. The Group's principal activity is the provision of operations and maintenance outsourcing services which include structural, mechanical, civil, instrumentation and electrical maintenance, as well as the management of facilities and systems in Australia, New Zealand and South East Asia. On 27-Aug-2002, the Group acquired all of the issued shares in NRGenerating Holdings (No 1) BV, the owner of the Collinsville Power Station. Services accounted for 94% of fis 2002 revenues and infrastructure, 6%.