PERMA FIX ENVIRONMENTAL SERVICES INC Contracts & Agreements

Underwriting Agreement, dated as of November 18, 2024, by and between the Company and Craig-Hallum Capital Group, LLC (Filed With SEC on December 18, 2024)

Ninth Amendment to Second Amended and Restated Revolving Credit, Term Loan and Security Agreement, dated November 12, 2024, between Perma-Fix Environmental Services, Inc. and PNC... (Filed With SEC on November 13, 2024)

Form of Securities Purchase Agreement, dated May 21, 2024, by and between the Company and the purchasers party thereto (Filed With SEC on May 24, 2024)

Placement Agency Agreement, dated as of May 21, 2024, by and between the Company and Craig-Hallum Capital Group LLC and Wellington Shields & Co., LLC (Filed With SEC on May 24, 2024)

Form of Placement Agents Warrants (Filed With SEC on May 24, 2024)

Eighth Amendment to Second Amended and Restated Revolving Credit, Term Loan and Security Agreement dated May 8, 2024, between Perma-Fix Environmental Services, Inc. and PNC Bank,... (Filed With SEC on May 9, 2024)

Second Amendment to 2003 Outside Directors Stock Plan (Filed With SEC on March 13, 2024)

Third Amendment to 2003 Outside Directors Stock Plan (Filed With SEC on March 13, 2024)

Fourth Amendment to 2003 Outside Directors Stock Plan (Filed With SEC on March 13, 2024)

2017 Stock Option Plan (Filed With SEC on March 13, 2024)

Mixed Direct & Framework Contract for Services (Number -945711-IPR-2023), issued by European Commission to Perma-Fix Environmental Services, Inc. and Campoverde Srl, dated... (Filed With SEC on March 13, 2024)

Seventh Amendment to Second Amended and Restated Revolving Credit, Term Loan and Security Agreement dated July 31, 2023, between Perma-Fix Environmental Services, Inc. and PNC... (Filed With SEC on August 3, 2023)

Term Note dated July 31, 2023, between Perma-Fix Environmental Services, Inc. and PNC Bank, National Association (Filed With SEC on August 3, 2023)

Sixth Amendment to Second Amended and Restated Revolving Credit, Term Loan and Security Agreement dated March 21, 2023, between Perma-Fix Environmental Services, Inc. and PNC... (Filed With SEC on March 23, 2023)

Fifth Amendment to Second Amended and Restated Revolving Credit, Term Loan and Security Agreement dated August 29, 2022, by and among Perma-Fix Environmental Services, Inc. and... (Filed With SEC on August 29, 2022)

Fourth Amendment to Second Amended and Restated Revolving Credit, Term Loan and Security Agreement between Perma-Fix Environmental Services, Inc. and PNC Bank, National... (Filed With SEC on August 5, 2022)

Third Amendment to Second Amended and Restated Revolving Credit, Term Loan and Security Agreement between Perma-Fix Environmental Services, Inc. and PNC Bank, National Association... (Filed With SEC on April 6, 2022)

Joint Venture Term Sheet between Springfields Fuels Limited, an affiliate of Westinghouse, and the Company. CERTAIN INFORMATION WITHIN THIS EXHIBIT HAS BEEN EXCLUDED FROM THE... (Filed With SEC on April 6, 2022)

Third Amendment to Second Amended and Restated Revolving Credit, Term Loan and Security Agreement and Waiver dated March 29, 2022, by and among Perma-Fix Environmental Services,... (Filed With SEC on April 4, 2022)

Solicitation, Offer and Award dated September 17, 2021 issued to Perma-Fix Environmental Services, Inc. by Norfolk Naval Shipyard (Filed With SEC on November 12, 2021)

Placement Agency Agreement, dated as of September 23, 2021, by and between the Company and Wellington Shields & Co., LLC (Filed With SEC on October 4, 2021)

Form of Subscription Agreement, dated as of September 30, 2021, between the Company and each purchaser named in the signature pages of the respective Subscription Agreements (Filed With SEC on October 4, 2021)

Second Amendment to Second Amended and Restated Revolving Credit, Term Loan and Security Agreement between Perma-Fix Environmental Services, Inc. and PNC Bank, National... (Filed With SEC on August 11, 2021)

First Amendment to Second Amended and Restated Revolving Credit, Term Loan and Security Agreement between Perma-Fix Environmental Services, Inc. and PNC Bank, National Association... (Filed With SEC on May 6, 2021)

Fourth Amendment to Amended and Restated Revolving Credit, Term Loan and Security Agreement and Waiver between PNC Bank, National Association and Perma-Fix Environmental Services,... (Filed With SEC on March 20, 2020)

Fifth Amendment to Amended and Restated Revolving Credit, Term Loan and Security Agreement between PNC Bank, National Association and Perma-Fix Environmental Services, Inc., dated... (Filed With SEC on March 20, 2020)

Sixth Amendment to Amended and Restated Revolving Credit, Term Loan and Security Agreement between PNC Bank, National Association and Perma-Fix Environmental Services, Inc., dated... (Filed With SEC on March 20, 2020)

Thirteenth Amendment to Amended and Restated Revolving Credit, Term Loan and Security Agreement between PNC Bank, National Association and Perma-Fix Environmental Services, Inc.,... (Filed With SEC on March 20, 2020)

2003 Outside Directors Stock Plan of the Company (Filed With SEC on March 20, 2020)

First Amendment to 2003 Outside Directors Stock Plan (Filed With SEC on March 20, 2020)

Twelfth Amendment to Amended and Restated Revolving Credit, Term Loan and Security Agreement between PNC Bank, National Association and Perma-Fix Environmental Services, Inc.,... (Filed With SEC on June 21, 2019)

First Amendment to Shareholder Rights Agreement, dated May 2, 2019, between Perma-Fix Environmental Services, Inc. and Continental Stock Transfer & Trust Company as Rights Agent (Filed With SEC on May 3, 2019)

Second Amendment to Amended and Restated Revolving Credit, Term Loan and Security Agreement and Waiver, dated May 9, 2013, between the Company and PNC Bank, National Association (Filed With SEC on April 1, 2019)

Third Amendment to Amended and Restated Revolving Credit, Term Loan and Security Agreement between PNC Bank, National Association and Perma-Fix Environmental Services, Inc., dated... (Filed With SEC on April 1, 2019)

Third Amended, Restated and Substituted Revolving Credit Note between PNC Bank, National Association and Perma-Fix Environmental Services, Inc., dated August 2, 2013 (Filed With SEC on April 1, 2019)

Eleventh Amendment to Amended and Restated Revolving Credit, Term Loan and Security Agreement and Waiver between PNC Bank, National Association and Perma-Fix Environmental... (Filed With SEC on April 1, 2019)

LOAN AND SECURITIES PURCHASE AGREEMENT (Filed With SEC on April 1, 2019)

Loan and Securities Purchase Agreement, dated April 1, 2019 between Robert L. Ferguson and Perma-Fix Environmental Services, Inc (Filed With SEC on April 1, 2019)

First Amendment to Stock Option Agreement dated July 27, 2017 between Perma-Fix Environmental Services, Inc. Mr. Robert L. Ferguson (Filed With SEC on April 1, 2019)

Tenth Amendment to Amended and Restated Revolving Credit, Term Loan and Security Agreement dated July 26, 2018, by and among Perma-Fix Environmental Services, Inc., the lenders... (Filed With SEC on July 30, 2018)

Shareholder Rights Agreement, dated and effective as of May 2, 2018, between Perma-Fix Environmental Services, Inc., as the Company, and Continental Stock Transfer & Trust... (Filed With SEC on May 2, 2018)

First Amendment to Amended and Restated Revolving Credit, Term Loan and Security Agreement, dated November 7, 2012, between the Company and PNC Bank, National Association (Filed With SEC on March 16, 2018)

Second Amendment to 2003 Outside Directors Stock Plan (Filed With SEC on March 16, 2018)

Third Amendment to 2003 Outside Directors Stock Plan (Filed With SEC on March 16, 2018)

PERMA-FIXENVIRONMENTAL SERVICES, INC 2017 STOCK OPTION PLAN (Filed With SEC on August 9, 2017)

NINTH AMENDMENT TO AMENDED AND RESTATED REVOLVING CREDIT, TERM LOAN AND SECURITY AGREEMENT AND WAIVER (Filed With SEC on November 18, 2016)

EIGHTH AMENDMENT TO AMENDED AND RESTATED REVOLVING CREDIT, TERM LOAN AND SECURITY AGREEMENT AND WAIVER (Filed With SEC on August 22, 2016)

Exhibit 4.8 PNC Bank, National Association One Piedmont Town Center 4270 Piedmont Row Drive, Suite 300 Charlotte, North Carolina 28210 (Filed With SEC on May 23, 2016)

SEVENTH AMENDMENT TO AMENDED AND RESTATED REVOLVING CREDIT, TERM LOAN AND SECURITY AGREEMENT (Filed With SEC on March 24, 2016)

EXHIBIT 10.7 PERMA-FIX ENVIRONMENTAL SERVICES, INC. 2010 STOCK OPTION PLAN (Filed With SEC on March 24, 2016)

PERMA-FIX ENVIRONMENTAL SERVICES, INC. AND CONTINENTAL STOCK TRANSFER & TRUST COMPANY (Rights Agent) RIGHTS AGREEMENT Dated as of May 2, 2008 TABLE OF CONTENTS (Filed With SEC on March 31, 2015)

PERMA-FIX ENVIRONMENTAL SERVICES, INC. 2003 OUTSIDE DIRECTORS STOCK PLAN (Filed With SEC on March 31, 2015)

FIRST AMENDMENT to 2003 OUTSIDE DIRECTORS STOCK PLAN (Filed With SEC on March 31, 2015)

Fourth Amendment to Amended and Restated Revolving Credit, Term Loan and Security Agreement and Waiver between PNC Bank, National Association and Perma-Fix Environmental Services,... (Filed With SEC on April 15, 2014)

Third Amendment to Amended and Restated Revolving Credit, Term Loan and Security Agreement between PNC Bank, National Association and Perma-Fix Environmental Services, Inc., dated... (Filed With SEC on August 8, 2013)

Third Amended, Restated and Substituted Revolving Credit Note between PNC Bank, National Association and Perma-Fix Environmental Services, Inc., dated August 2, 2013 (Filed With SEC on August 8, 2013)

Subordination Agreement dated August 2, 2013 by and among William Lampson and Robert Ferguson and PNC Bank, National Association (Filed With SEC on August 8, 2013)

Loan and Securities Purchase Agreement, dated August 2, 2013 between William N. Lampson, Robert L. Ferguson, and Perma-Fix Environmental Services, Inc (Filed With SEC on August 8, 2013)

Promissory Note dated August 2, 2013 between William N. Lampson, Robert L. Ferguson, and Perma-Fix Environmental Services (Filed With SEC on August 8, 2013)

Common Stock Purchase Warrant dated August 2, 2013 for William N. Lampson (Filed With SEC on August 8, 2013)

Common Stock Purchase Warrant dated August 2, 2013 for Robert L. Ferguson (Filed With SEC on August 8, 2013)

2013 Incentive Compensation Plan for Chief Executive Officer, effective January 1, 2013 (Filed With SEC on June 12, 2013)

2013 Incentive Compensation Plan for Chief Financial Officer, effective January 1, 2013 (Filed With SEC on June 12, 2013)

2013 Incentive Compensation Plan for Chief Operating Officer, effective January 1, 2013 (Filed With SEC on June 12, 2013)

Second Amendment to Amended and Restated Revolving Credit, Term Loan and Security Agreement and Waiver, dated May 9, 2013, between the Company and PNC Bank, National Association (Filed With SEC on May 10, 2013)

First Amendment to Amended and Restated Revolving Credit, Term Loan and Security Agreement, dated November 7, 2012, between the Company and PNC Bank, National Association (Filed With SEC on November 8, 2012)

2012 Incentive Compensation Plan for Chief Executive Officer (Filed With SEC on July 18, 2012)

2012 Incentive Compensation Plan for Chief Financial Officer (Filed With SEC on July 18, 2012)

2012 Incentive Compensation Plan for Chief Operating Officer (Filed With SEC on July 18, 2012)

Amended Management Incentive Plan for Christopher Leichtweis (Filed With SEC on July 18, 2012)

Promissory Note, dated October 31, 2011, issued by PESI in favor of Homeland (Filed With SEC on November 4, 2011)

Escrow Agreement, dated October 31, 2011, between the Company, Homeland Security Capital Corporation, and Suntrust Bank (Filed With SEC on November 4, 2011)

Letter Agreement (Net Working Capital Adustments), dated October 31, 2011, between the Company, Safety & Ecology Holdings Corporation and Homeland Security Capital Corporation (Filed With SEC on November 4, 2011)

Letter Agreement (Escrow), dated October 31, 2011, between the Company, Safety & Ecology Holdings Corporation and Homeland Security Capital Corporation (Filed With SEC on November 4, 2011)

Letter Agreement (Note Prepayment), dated October 31, 2011, between the Company, Safety & Ecology Holdings Corporation and Homeland Security Capital Corporation (Filed With SEC on November 4, 2011)

Stock Purchase Agreement by and between Triumvirate Environmental, Inc. and Perma-Fix Environmental Services, Inc. dated June 13, 2011. The Registrant will furnish supplementally... (Filed With SEC on August 5, 2011)

Incentive Stock Option Agreement between Perma-Fix Environmental Services, Inc. and Mr. Jim Blankenhorn (Filed With SEC on August 5, 2011)

Form of Incentive Stock Option Agreement (Filed With SEC on July 29, 2011)

Stock Purchase Agreement, dated July 15, 2011, by and among Perma-Fix Environmental Services, Inc., Homeland Security Capital Corporation and Safety and Ecology Holdings... (Filed With SEC on July 20, 2011)

Draft of Promissory Note to be issued by PESI to Homeland at closing of the Acquisition (Filed With SEC on July 20, 2011)

First Amendment to Loan and Securities Purchase Agreement, dated April 18, 2011 between William N. Lampson, Anne Rettig, the duly appointed and acting Personal Representative of... (Filed With SEC on April 22, 2011)

First Amendment to Promissory Note dated April 18, 2011 between William Lampson, Anne Rettig, the duly appointed and acting Personal Representative of the Estate of Diehl Rettig,... (Filed With SEC on April 22, 2011)

First Amendment to Common Stock Purchase Warrant, dated April 18, 2011, between Perma-Fix Environmental Services, Inc., and William N. Lampson (Filed With SEC on April 22, 2011)

First Amendment to Common Stock Purchase Warrant, dated April 18, 2011, between Perma-Fix Environmental Services, Inc., and Anne Rettig, the Personal Representative of the Estate... (Filed With SEC on April 22, 2011)

2011 Incentive Compensation Plan for Chief Executive Officer, effective January 1, 2011 (Filed With SEC on March 23, 2011)

2011 Incentive Compensation Plan for Chief Financial Officer, effective January 1, 2011 (Filed With SEC on March 23, 2011)

2011 Incentive Compensation Plan for Chief Operating Officer, effective January 1, 2011 (Filed With SEC on March 23, 2011)

First Amendment to Loan Agreement and Consent, dated January 30, 2001, between the Company and PNC Bank, National Association (Filed With SEC on March 11, 2011)

Amendment No. 2 to Revolving Credit, Term Loan and Security Agreement, dated as of May 23, 2003, between the Company and PNC Bank, National Association (Filed With SEC on March 11, 2011)

Amendment No. 3 to Revolving Credit, Term Loan, and Security Agreement, dated as of October 31, 2003, between the Company and PNC Bank, National Association (Filed With SEC on March 11, 2011)

Amendment No. 4 to Revolving Credit, Term Loan, and Security Agreement, dated as of March 25, 2005, between the Company and PNC Bank, National Association (Filed With SEC on March 11, 2011)

Third Amendment to the Company's 1992 Outside Directors' Stock Option Plan (Filed With SEC on March 11, 2011)

Fourth Amendment to the Company's 1992 Outside Directors' Stock Option Plan (Filed With SEC on March 11, 2011)

2003 Outside Directors' Stock Plan of the Company (Filed With SEC on March 11, 2011)

2004 Stock Option Plan of the Company (Filed With SEC on March 11, 2011)

Earn-Out Promissory Note, dated September 28, 2010, between the Company and Nuvotrust Northwest Liquidation Trust (Filed With SEC on November 5, 2010)

CHAIRMAN,CHIEF EXECUTIVE OFFICER AND PRESIDENT Effective:January 1, 2010 (Filed With SEC on March 3, 2010)

VICEPRESIDENT, CHIEF FINANCIAL OFFICER Effective:January 1, 2010 (Filed With SEC on March 3, 2010)

LOAN AND SECURITIES PURCHASEAGREEMENT (Filed With SEC on May 11, 2009)

PROMISSORYNOTE (Filed With SEC on May 11, 2009)

COMMON STOCK PURCHASEWARRANT ToPurchase 135,000 Shares ofCommon Stock of PERMA-FIXENVIRONMENTAL SERVICES, INC. (Filed With SEC on May 11, 2009)

COMMON STOCK PURCHASEWARRANT ToPurchase 15,000 Shares ofCommon Stock of PERMA-FIXENVIRONMENTAL SERVICES, INC. (Filed With SEC on May 11, 2009)

CHAIRMAN,CHIEF EXECUTIVE OFFICER AND PRESIDENT (Filed With SEC on May 7, 2009)

CHIEFOPERATING OFFICER Effective:January 1, 2009 CHIEFOPERATING OFFICER (Filed With SEC on May 7, 2009)

VICEPRESIDENT, CHIEF FINANCIAL OFFICER Effective:January 1, 2009 VICEPRESIDENT, CHIEF FINANCIAL OFFICER (Filed With SEC on May 7, 2009)

EMPLOYMENTAGREEMENT (Filed With SEC on May 7, 2009)

FIRSTAMENDMENT TO EASTTENNESSEE MATERIALS &ENERGY CORPORATION PROMISSORYNOTE (Filed With SEC on December 30, 2008)

SECOND AMENDMENT TO AGREEMENT AND PLAN OF MERGER (Filed With SEC on November 21, 2008)

VICE PRESIDENT, CHIEF FINANCIAL OFFICER Effective: January 1, 2008 VICE PRESIDENT, CHIEF FINANCIAL OFFICER (Filed With SEC on August 11, 2008)

CHIEF OPERATING OFFICER Effective: January 1, 2008 CHIEF OPERATING OFFICER (Filed With SEC on August 11, 2008)

CHAIRMAN, CHIEF EXECUTIVE OFFICER AND PRESIDENT Effective: January 1, 2008 CHAIRMAN, CHIEF EXECUTIVE OFFICER AND PRESIDENT (Filed With SEC on August 11, 2008)

First Amendment dated May 30, 2008 to Asset Purchase Agreement dated May 14, 2008, by and among Perma-Fix Environmental Services, Inc., Perma-Fix Treatment Services, Inc., and A... (Filed With SEC on June 5, 2008)

Exhibit 4.1 AMENDMENT NO. 6 TO REVOLVING CREDIT, TERM LOAN AND SECURITY AGREEMENT (Filed With SEC on August 14, 2007)

Exhibit 4.2 AMENDMENT NO. 7 TO REVOLVING CREDIT, TERM LOAN AND SECURITY AGREEMENT (Filed With SEC on August 14, 2007)

FIRST AMENDMENT TO AGREEMENT AND PLAN OF MERGER (Filed With SEC on June 19, 2007)

EXHIBIT 10.1 BASIC AGREEMENT BETWEEN EAST TENNESSEE MATERIALS AND ENERGY CORPORATION AND BECHTEL JACOBS COMPANY, LLC. BASIC AGREEMENT NUMBER 23900-BA-99446F September 30, 2005 (Filed With SEC on November 9, 2005)

EXHIBIT 10.2 (Filed With SEC on November 9, 2005)

DEBT-FOR-STOCK EXCHANGE AGREEMENT (Filed With SEC on July 20, 2001)

WARRANT AGREEMENT (Filed With SEC on July 5, 2001)

East Tennessee Materials & Energy Corporation Promissory Note (Filed With SEC on July 5, 2001)

ADDENDUM TO INSTALLMENT AGREEMENT OF EAST TENNESSEE MATERIALS & ENERGY CORPORATION EIN: 62-172177 (Filed With SEC on July 5, 2001)

STOCK PURCHASE AGREEMENT (Filed With SEC on February 26, 2001)

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PERMA FIX ENVIRONMENTAL SERVICES INC Contracts & Agreements