Perth-based drilling products and services group Imdex Ltd has announced a 91 per cent profit increase to $8 million for the 2005-06 financial year, with the increase helped by two non-operational adjustments.

Perth-based drilling products and services group Imdex Ltd has announced a 91 per cent profit increase to $8 million for the 2005-06 financial year, with the increase helped by two non-operational adjustments.