Jul 01, 2008 · TRANSPORT, POSTAL AND WAREHOUSING: Water transport and support services: Port assets: Land based facilities: Conveyor systems (incorporating chutes, gravity take-up assemblies, headframes, structures, surge bins, transfer towers and weigh towers) 30 years: 6.67%: 3.33%: 1 Jul 2002: Courier pick-up and delivery services: Materials handling