Kangaroo Island Plantation Timbers in mill negotiations after timber expo in Mt Gambier Buyers were particularly interested in the KPT wood that had positive 'resi testing' results, proving its suitability for construction grade lumber. Colin Wooldridge from Whitehead’s Timber Sales checks out the internal structure of the KPT logs. Kangaroo Island Plantation Timbers Ltd (ASX:KPT) has completed an expo of its timber at a yard near Mt Gambier in southeast South Australia and is in negotiations with several mills regarding buying lots from the KPT pine softwood estate. Logs of different size and varying burn classification were shown to representatives of about 10 mills, including logs from an independent grower on Kangaroo Island.