INVESTOR PRESENTATION WWW.NWPIPE.COM May 2022 FORWARD LOOKING STATEMENTS Statements in this presentation are "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995 and Section 21E of the Securities Exchange Act of 1934, as amended, that are based on current expectations, estimates, and projections about the Company's business, management's beliefs, and assumptions made by management. These statements are not guarantees of future performance and involve risks ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended: March 31, 2022 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from _______to _______ Commission File Number: 0-27140 NORTHWEST PIPE COMPANY (Exact name of registrant as specified in its charter) Oregon 93-0557988 (Sta ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended: December 31, 2021 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 0-27140 NORTHWEST PIPE COMPANY (Exact name of registrant as specified in its charter) Oregon 93-0557988 State or othe ...

Northwest Pipe Company (NASDAQ:NWPX) Q4 2021 Earnings Conference Call March 16, 2022 10:00 AM ET Company Participants Scott Montross - President & Chief Executive Officer Aaron Wilkins - Chief Financial Officer Conference Call Participants Brent Thielman - D.A. Davidson Gus Richard - Northland Operator Greetings and welcome to Northwest Pipe Company Fourth Quarter 2021 Earnings Call. At this time, all participants are in a listen-only mode. A question-and-answer session will follow the formal presentation. ...

Northwest Pipe Company (NASDAQ:NWPX) Q3 2021 Results Earnings Conference Call November 9, 2021 10:00 AM ET Company Participants Scott Montross - President, Chief Executive Officer Aaron Wilkins - Chief Financial Officer Conference Call Participants Zane Karimi - D.A. Davidson Gus Richard - Northland David Wright - Henry Investment Trust Operator Good day and welcome to the Northwest Pipe third quarter 2021 earnings conference call. All participants are in listen-only mode. [Operator Instructions]. After tod ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended: September 30, 2021 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from _______to _______ Commission File Number: 0-27140 NORTHWEST PIPE COMPANY (Exact name of registrant as specified in its charter) Oregon 93-0557988 ...

Northwest Pipe Company (NASDAQ:NWPX) Q2 2021 Earnings Conference Call August 5, 2021 10:00 AM ET Company Participants Scott Montross - President & Chief Executive Officer Aaron Wilkins - Chief Financial Officer Conference Call Participants Brent Thielman - D.A. Davidson Gus Richard - Northland David Wright - Henry Investment Trust Operator Thank you for standing by. This is the conference operator. Welcome to the Northwest Pipe Company Second Quarter 2021 Earnings Conference Call. As a reminder, all partici ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended: June 30, 2021 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from _______to _______ Commission File Number: 0-27140 NORTHWEST PIPE COMPANY (Exact name of registrant as specified in its charter) Oregon 93-0557988 (Stat ...

Northwest Pipe Company (NASDAQ:NWPX) Q1 2021 Earnings Conference Call May 4, 2021 10:00 AM ET Company Participants Scott Montross - President and CEO Aaron Wilkins - CFO Conference Call Participants Brent Thielman - D.A. Davidson Gus Richard - Northland Capital Markets Mike Morales - Walthausen & Company Operator Good morning and welcome to the Northwest Pipe Company's First Quarter 2021 Earnings Conference Call. All participants will be in listen-only mode. [Operator Instructions] Please note this event is ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended: March 31, 2021 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from _______to _______ Commission File Number: 0-27140 NORTHWEST PIPE COMPANY (Exact name of registrant as specified in its charter) (State or other jurisd ...