Engineering services provider Bradken has provided an update to investors after completing its unaudited accounts for the first half of 2017.

Based on management accounts, the company expects to deliver a net loss of $37 million for the half year.

Revenue fell 6 per cent to $380 million due to flat conditions in the mining related businesses and a further deterioration in its US engineered products business, it said.

Underlying EBITDA for the period is expected to hit about $52 million, unchanged from the previous year, as it continues with its transformation plan.