KPMG's report into accounting irregularities at Powerscreen subsidiary Matbro is very close to completion and should be published toward the end of next week, sources close to the company have said.

Institutional investors, who subscribed £18 million to a Powerscreen rights issue just six weeks before the company announced it was making a £46.6 million provision following the discovery of irregularities at Matbro, are eagerly awaiting publication of the report.

Last week, the Powerscreen board warned of an expected pre-tax loss of £65 million sterling for the year to end March, up from an expected loss of £10 million.