NORTHWEST PIPE CO Contracts & Agreements

Change in Control Agreement dated April 1, 2020 between Northwest Pipe Company and Eric Stokes (Filed With SEC on May 2, 2024)

Change in Control Agreement dated December 9, 2021 between Northwest Pipe Company and Michael Wray (Filed With SEC on May 2, 2024)

Form of Performance Share Unit Agreement (Filed With SEC on April 3, 2024)

Form of Restricted Stock Unit Agreement (Filed With SEC on April 3, 2024)

Form of Performance Share Unit Agreement (Filed With SEC on April 13, 2023)

Form of Restricted Stock Unit Agreement (Filed With SEC on April 13, 2023)

Form of Indemnification Agreement (Filed With SEC on December 12, 2022)

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

Form of Performance Share Unit Agreement (Filed With SEC on June 23, 2022)

Form of Restricted Stock Unit Agreement (Filed With SEC on June 23, 2022)

Separation Agreement dated April 8, 2022 between Northwest Pipe Company and William Smith (Filed With SEC on April 13, 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)

Membership Interest Purchase Agreement dated as of October5, 2021 by and among Northwest Pipe Company, EBSR,LLC, the equity holders of EBSR,LLC, and Park Environmental... (Filed With SEC on October 6, 2021)

Change in Control Agreement (Filed With SEC on June 11, 2021)

Form of Performance Share Unit Agreement (Filed With SEC on March 19, 2021)

Form of Restricted Stock Unit Agreement (Filed With SEC on March 19, 2021)

Separation Agreement dated March 30, 2020 between Northwest Pipe Company and Robin Gantt (Filed With SEC on April 3, 2020)

Change in Control Agreement dated April 1, 2020 between Northwest Pipe Company and Aaron Wilkins (Filed With SEC on April 3, 2020)

Form of Performance Share Unit Agreement (Filed With SEC on April 1, 2020)

Form of Restricted Stock Unit Agreement (Filed With SEC on April 1, 2020)

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

Agreement and Plan of Merger among Northwest Pipe Company, Hatch Acquisition Corporation, Geneva Pipe Company, Inc., the Shareholders of Geneva Pipe Company, Inc., and Kurt... (Filed With SEC on February 6, 2020)

Consent and Amendment No. 1 to Credit Agreement dated January 31, 2020 by and among Wells Fargo Bank, National Association, Northwest Pipe Company, and NWPC, LLC (Filed With SEC on February 6, 2020)

Form of Performance Share Unit Agreement (Filed With SEC on April 1, 2019)

Form of Restricted Stock Unit Agreement (Filed With SEC on April 1, 2019)

Credit Agreement dated October 25, 2018 by and among Wells Fargo, National Association, Northwest Pipe Company, and Ameron Water Transmission Group, LLC (Filed With SEC on October 31, 2018)

Guaranty and Security Agreement dated October 25, 2018 among Northwest Pipe Company, Ameron Water Transmission Group, LLC, Permalok Corporation, Thompson Tank Holdings, Inc., WTG... (Filed With SEC on October 31, 2018)

Membership Interest Purchase Agreement dated as of July 27, 2018 by and between Northwest Pipe Company and Ameron International Corporation (Filed With SEC on August 1, 2018)

Form of Performance Share Unit Agreement (Filed With SEC on January 17, 2018)

Asset Purchase Agreement between Northwest Pipe Company and Almacenadora Afirme, S.A. de C.V., Organizacin Auxiliar del Crdito, Afirme Grupo Financiero, dated as of December 22,... (Filed With SEC on December 29, 2017)

Real Estate Purchase Agreement between Northwest Pipe Company and Almacenadora Afirme, S.A. de C.V., Organizacin Auxiliar del Crdito, Afirme Grupo Financiero, dated as of December... (Filed With SEC on December 29, 2017)

AMENDMENT NUMBER ONE TO LOAN AND SECURITY AGREEMENT by and between NORTHWEST PIPE and PERMALOK CORPORATION individually and collectively, as Borrower and Bank of America, N.A., as... (Filed With SEC on October 24, 2016)

LONG TERM INCENTIVE PLAN (LTIP) AGREEMENT (Filed With SEC on April 21, 2016)

LOAN AND SECURITY AGREEMENT Dated as of October 26, 2015 ______________________________________________________________________________ NORTHWEST PIPE COMPANY and PERMALOK... (Filed With SEC on October 29, 2015)

TEMPORARY WAIVER (Filed With SEC on October 13, 2015)

NORTHWEST PIPE COMPANY 2015 SHORT TERM INCENTIVE PLAN (Filed With SEC on March 16, 2015)

NORTHWEST PIPE COMPANY RESTRICTED STOCK UNIT AGREEMENT (Filed With SEC on June 4, 2014)

NORTHWEST PIPE COMPANY PERFORMANCE SHARE UNIT AGREEMENT (Filed With SEC on June 4, 2014)

EXECUTIVE EMPLOYMENT AGREEMENT (Filed With SEC on April 4, 2014)

ASSET PURCHASE AGREEMENT between NORTHWEST PIPE COMPANY and CENTRIC PIPE, LLC dated as of March 28, 2014 TABLE OF CONTENTS (Filed With SEC on April 1, 2014)

NORTHWEST PIPE COMPANY 2014 SHORT TERM INCENTIVE PLAN (Filed With SEC on March 17, 2014)

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

NORTHWEST PIPE COMPANY RESTRICTED STOCK UNIT AGREEMENT (Filed With SEC on June 5, 2013)

NORTHWEST PIPE COMPANY PERFORMANCE SHARE AWARD AGREEMENT (Filed With SEC on June 5, 2013)

NORTHWEST PIPE COMPANY 2013 SHORT TERM INCENTIVE PLAN (Filed With SEC on February 27, 2013)

EXECUTIVE EMPLOYMENT AGREEMENT (Filed With SEC on December 20, 2012)

Prudential Investment Management, Inc. (PIM) The PrudentialInsurance Company of America (Prudential) Prudential Retirement Insurance and Annuity Company(PRIAC) Each Prudential... (Filed With SEC on October 29, 2012)

THIRD AMENDED AND RESTATED INTERCREDITOR AND COLLATERAL AGENCY AGREEMENT Dated as of October 24, 2012 Among PRUDENTIAL INVESTMENT MANAGEMENT, INC. AND THE PRUDENTIAL NOTEHOLDERS,... (Filed With SEC on October 29, 2012)

SECOND AMENDED AND RESTATED CREDIT AGREEMENT Dated as of October 24, 2012 Among NORTHWEST PIPE COMPANY, as Borrower, BANK OF AMERICA, N.A., as Administrative Agent, Swing Line... (Filed With SEC on October 29, 2012)

NORTHWEST PIPE COMPANY RESTRICTED STOCK UNIT AGREEMENT (Filed With SEC on June 20, 2012)

NORTHWEST PIPE COMPANY PERFORMANCE STOCK AWARD AGREEMENT (Filed With SEC on June 20, 2012)

Change in Control Agreement (Filed With SEC on April 27, 2012)

NINTH AMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT (Filed With SEC on March 30, 2012)

NORTHWEST PIPE COMPANY RESTRICTED STOCK UNIT AGREEMENT (Filed With SEC on October 12, 2011)

NORTHWEST PIPE COMPANY PERFORMANCE SHARE UNIT AGREEMENT (Filed With SEC on October 12, 2011)

Change in Control Agreement (Filed With SEC on August 8, 2011)

Northwest Pipe Company 2011 Salaried Employee Cash Incentive Plan (Filed With SEC on August 8, 2011)

AMENDED AND RESTATED EXECUTIVE EMPLOYMENT AGREEMENT (Filed With SEC on April 25, 2011)

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

SEPARATION AGREEMENT AND RELEASE (Filed With SEC on January 24, 2011)

SECOND AMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT (Filed With SEC on August 28, 2009)

Prudential Investment Management, Inc. (PIM) The Prudential Insurance Company of America(Prudential) Prudential Retirement Insurance and Annuity Company (PRIAC) (Filed With SEC on August 28, 2009)

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

AGREEMENT (Filed With SEC on March 13, 2009)

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

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

NORTHWEST PIPE COMPANY RESTRICTED STOCK UNIT AGREEMENT (Filed With SEC on November 10, 2008)

NORTHWEST PIPE COMPANY PERFORMANCE SHARE AGREEMENT (Filed With SEC on November 10, 2008)

SECOND AMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT (Filed With SEC on October 20, 2008)

Prudential Investment Management, Inc. (PIM) The Prudential Insurance Company of America(Prudential) Prudential Retirement Insurance and Annuity Company (PRIAC) (Filed With SEC on October 20, 2008)

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

SEPARATION AGREEMENT AND RELEASE (Filed With SEC on March 17, 2008)

AMENDED AND RESTATED CREDIT AGREEMENT Dated as of May 31, 2007 among NORTHWEST PIPE COMPANY, as Borrower, (Filed With SEC on June 6, 2007)

SECOND AMENDED AND RESTATED INTERCREDITOR AND COLLATERAL AGENCY AGREEMENT Dated as of May 31, 2007 Among PRUDENTIAL INVESTMENT MANAGEMENT, INC. AND THE PRUDENTIAL NOTEHOLDERS,... (Filed With SEC on June 6, 2007)

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

SEPARATION AGREEMENT AND RELEASE (Filed With SEC on May 8, 2007)

Long Term Incentive Plan (Filed With SEC on August 8, 2005)

Credit Agreement among Northwest Pipe Company and Bank of America, N.A., dated May 20, 2005 (Filed With SEC on August 8, 2005)

Amended and Restated Intercreditor and Collateral Agency Agreement among Northwest Pipe Company and Prudential Investment Management, Inc. and the Prudential Noteholders, Bank of... (Filed With SEC on August 8, 2005)

First Amendment to the Note Purchase and Private Shelf Agreement, dated as of February 25, 2004 (Filed With SEC on August 8, 2005)

FIRST AMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT (Filed With SEC on October 26, 2004)

AMENDED AND RESTATED CREDIT AGREEMENT (Filed With SEC on April 30, 2004)

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

INTERCREDITOR AND COLLATERAL AGENCY AGREEMENT (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)

FIRSTAMENDMENT TO CREDIT AGREEMENT (Filed With SEC on May 7, 2002)

CREDITAGREEMENT (Filed With SEC on August 14, 2001)

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

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NORTHWEST PIPE CO Contracts & Agreements