It is reported that Northwest Pipe Company received notice from the NASDAQ Stock Market that it was out of compliance with exchange listing rules because it delayed filing its financial results for the quarter ended September 30th 2009.

Northwest Pipe said last week that it delayed submitting its formal quarterly earnings to regulators pending an internal investigation of certain accounting matters.

It did not elaborate on what triggered the investigation. The company's statement at the time said the review was being done by the board of directors' audit committee with help from independent contractors.

(Sourced from www.oregonlive.com)