Building and engineering products company Alumasc said trading since the end of June has been in line with expectations, with revenues running more than 10% ahead of last year's levels. Net debt at 30 September 2010 was £10.9m, £1.6m higher than at the end of June due to anticipated increases in working capital requirements as revenues have grown. Group borrowings remain comfortably within committed financing facilities of £20m.The group's order book currently stands at more than £40m, around 20% ahead of prior year end levels and over 50% ahead of the low point in December 2009, with the majority of the uplift at Alumasc Precision, the group's largest engineering products business.