Net profit after tax increased to $38.2 million, including impairment charges of $12.2 million, from $25.7 million in the same period in 2009. Earnings before interest, tax, depreciation and amortisation were up 27% to $90.1 million, while the EBITDA margin increased to 16.9% from 15.3%. Sales revenue jumped 15% to $532.5 million, while operating cash flow fell 56% to $36.2 million due to higher working capital levels and tax payments. Bradken said sales revenue for its Mining Products division increased by 23%, while the sale of crawler systems jumped 133%.