WOC type iron ore waggon WOC 31346 is one of a batch of thirty built by Goninan WA between October 1997 to January 1998 with fleet number 406 for Koolyanobbing iron ore operations with a 75 ton capacity and lettered for KIPL, Koolyanobbing Iron Pty Ltd, part of an empty train at Binduli, 27th May 2007.