NORTHWEST PIPE CO Uncategorized Contracts & Agreements

Open Market Sale AgreementSM, dated September2, 2022 between Northwest Pipe Company and Jefferies LLC (Filed With SEC on September 2, 2022)

Incremental Amendment dated October22, 2021, by and among Northwest Pipe Company, NWPC,LLC, Geneva Pipe and Precast Company, Park Environmental Equipment,LLC, certain other... (Filed With SEC on October 28, 2021)

Description of Securities Registered Under Section 12 of the Securities Exchange Act of 1934 (Filed With SEC on March 3, 2020)

Page 2 (Filed With SEC on November 5, 2013)

Northwest Pipe Company 5721 SE Columbia Way Suite 200 Vancouver WA 98661 (360) 397-6250 April 21, 2011 (Filed With SEC on April 25, 2011)

AMENDED AND RESTATED RIGHTS AGREEMENT BETWEEN NORTHWEST PIPE COMPANY (Filed With SEC on June 19, 2009)

Page 2 (Filed With SEC on March 13, 2009)

July 28, 1999 (As Amended December 31, 2008) (Filed With SEC on March 13, 2009)

AGREEMENT (Filed With SEC on March 13, 2009)

FIRST AMENDMENT TO AND CONSENT UNDER SECOND AMENDED AND RESTATED (Filed With SEC on October 20, 2008)

NORTHWEST PIPE COMPANY (Filed With SEC on June 6, 2007)

NORTHWEST PIPE COMPANY (Filed With SEC on April 30, 2004)

THIRD AMENDMENT TO CREDITAGREEMENT (Filed With SEC on November 14, 2002)

SECOND AMENDMENT TOCREDIT AGREEMENT (Filed With SEC on August 14, 2002)

MASTERLEASE AGREEMENT Datedas of May30, 2001 Between GENERALELECTRIC CAPITAL CORPORATION Lessor and NORTHWESTPIPE COMPANY Lessee (Filed With SEC on August 14, 2001)

CREDITAGREEMENT (Filed With SEC on August 14, 2001)