Macmahon Holdings Ltd announced a record after tax profit of $11.7 million for the half year ended 31 December 2005, an increase of 107 per cent on the (AIFRS adjusted) result for the same period in 2004. Monadelphous Group announced a net profit of $12.5 million for the half year ended December 31, 2005, maintaining its record year-on-year profit growth. Mineral sands miner Iluka Resources booked an annual net loss for 2005 of $85.9 million, following asset write-downs and provisioning costs of $217.8 million.