Investor Information Stock Listing Common Stock Prices and Dividends Public/Shareholder Information Annual Meeting Transfer Agent & Registrar The transfer agent and registrar for Northwest Pipe stock is: Mellon Investor Services LLC P.O. Box 3315 South Hackensack, New Jersey 07606 (800) 522-6645 On the Internet: www.mellon-investor.com There were 78 shareholders of record and approximately 2,200  beneficial shareholders at March 23, 2001. There were no cash  dividends declared or paid in fiscal years 1999 or 2000. The  company does not anticipate paying cash dividends in the  foreseeable future. Quarter Low High 2000 First $ 12.500 $ 15.500 Second 11.438 14.125 Third 10.688 13.500 Fourth 6.531 11.563 1999 First $ 12.750 $ 17.500 Second 13.500 18.375 Third 15.125 18.500 Fourth 11.125 15.250 Northwest Pipe Company’s common stock is traded on the Nasdaq National Market System under the symbol NWPX. Corporate Headquarters Northwest Pipe Company 200 SW Market Street, Suite 1800 Portland, Oregon 97201 (503) 946-1200 Financial analysts, stockbrokers, interested investors and others can obtain a copy of the company’s 2000 10-K filed with the Securities and Exchange Commission by contacting: Diane Campbell Northwest Pipe Company 200 SW Market Street, Suite 1800 Portland, Oregon 97201 (503) 382-2388 dcampbell@nwpipe.com Additional information about the company can be obtained by calling the company or by accessing the web site. The annual meeting of Northwest Pipe shareholders will be: Tuesday, May 15, 2001 9:00 a.m. Heathman Hotel 1001 S. W. Broadway Portland, Oregon 97205 503.241.4100 Proxy material will be mailed to shareholders of record prior to the meeting. Independent Public Accountants PricewaterhouseCoopers LLP Portland, Oregon Legal Counsel Ater Wynne LLP Portland, Oregon Web Site Address www.nwpipe.com