FORM OF INDEMNIFICATION AGREEMENT  This Indemnification Agreement (this “Agreement”) is made as of the 17th day of  April, 2024 by and between Centuri Holdings, Inc., a Delaware corporation, (the  “Company”) and ________ (the “Indemnitee”), a director or officer of the Company.  WHEREAS, the Board of Directors has determined that the increasing difficulty in  attracting and retaining qualified persons as directors and officers is detrimental to the best  interests of the Company’s stockholders and that the Company should act to assure such  persons that there will be adequate certainty of protection through insurance and  indemnification against risks of claims and actions against them arising out of their service  to and activities on behalf of the Company; and   WHEREAS, Section 145 of the General Corporation Law of the State of Delaware  empowers the Company to indemnify and advance expenses to its officers, directors,  employees and agents by agreement and to indemnify and advance expenses to persons  who serve, at the request of the Company, as directors, officers, employees, or agents of  other corporations or enterprises, and expressly provides that the indemnification provided  by Section 145 is not exclusive;   WHEREAS, the Company has adopted provisions in its Certificate of Incorporation  and Bylaws providing for mandatory indemnification of its officers and directors to the  fullest extent permitted by applicable law, subject to certain limitations specified in the  Certificate of Incorporation and Bylaws, and the Company wishes to clarify and enhance  the rights and obligations of the Company and the Indemnitee with respect to  indemnification; and  WHEREAS, in order to induce and encourage highly experienced and capable  persons such as the Indemnitee to serve and continue to serve as directors and officers of  the Company and in other capacities with respect to the Company and its affiliates, and to  otherwise promote the desirable end that such persons will resist what they consider  unjustified lawsuits and claims made against them in connection with the good faith  performance of their duties to the Company, with the knowledge that certain costs,  judgments, liabilities and expenses incurred by them in their defense of such litigation are  to be borne by the Company, the Board of Directors of the Company has determined that  the following Agreement is reasonable and prudent to promote and ensure the best interests  of the Company and its stockholders.  NOW, THEREFORE, in consideration of the Indemnitee’s service as a director or  officer of the Company, or service at the Company’s request as a director, officer,  employee, or agent of other enterprises or entities, after the date hereof, and other good and  valuable consideration, the sufficiency of which is hereby acknowledged, the parties hereto  agree as follows:  Section 1. Service by Indemnitee. The Indemnitee will serve and/or continue  to serve as a director or officer of the Company faithfully and to the best of the Indemnitee’s  
 
 
2  ability so long as the Indemnitee is duly elected or appointed and until such time as the  Indemnitee is removed, terminated, or tenders a resignation.   Section 2. Indemnification.   (a) General. The Company shall indemnify the Indemnitee (i) as  provided in this Agreement and (ii) subject to the provisions of this Agreement, to the full  extent permitted by applicable law and in a manner permitted by such law.  (b) Proceedings Other Than Proceedings by or in the Right of the  Company. Except as provided in Section 4 hereof, the Indemnitee shall be entitled to the  rights of indemnification provided in this Section 2(b) if, by reason of the Indemnitee’s  Corporate Status, the Indemnitee is or was, or is or was threatened to be made, a party to  or is or was otherwise involved in a Proceeding, other than a Proceeding by or in the right  of the Company to procure a judgment in its favor. The Indemnitee shall be indemnified  pursuant to and in accordance with this Section 2(b) against all Losses actually and  reasonably incurred by the Indemnitee or on the Indemnitee’s behalf in connection with  such a Proceeding or any claim, issue, or matter therein, but only if the Indemnitee acted  in good faith and in a manner that the Indemnitee reasonably believed to be in or not  opposed to the best interests of the Company, and, with respect to any criminal action or  proceeding, had no reasonable cause to believe his or her conduct was unlawful.  (c) Proceedings by or in the Right of the Company. Except as provided  in Section 4 hereof, the Indemnitee shall be entitled to the rights of indemnification  provided in this Section 2(c) if, by reason of the Indemnitee’s Corporate Status, the  Indemnitee is or was, or is or was threatened to be made, a party to or is or was otherwise  involved in a Proceeding brought by or in the right of the Company to procure a judgment  in its favor. The Indemnitee shall be indemnified pursuant to and in accordance with this  Section 2(c) against all Expenses actually and reasonably incurred by the Indemnitee or on  the Indemnitee’s behalf in connection with such a Proceeding or any claim, issue, or matter  therein, but only if the Indemnitee acted in good faith and in a manner that the Indemnitee  reasonably believed to be in or not opposed to the best interests of the Company; provided,  however, that no indemnification for such Expenses shall be made in respect of any claim,  issue, or matter in such Proceeding as to which the Indemnitee shall have been adjudged  liable to the Company unless (and only to the extent that) the Court of Chancery of the  State of Delaware or the court in which such Proceeding was brought shall determine upon  application that, despite the adjudication of liability but in view of all the circumstances of  the case, the Indemnitee is fairly and reasonably entitled to indemnity for such expenses  that the Court of Chancery or such other court shall deem proper. Anything in this  Agreement to the contrary notwithstanding, if the Indemnitee, by reason of the  Indemnitee’s Corporate Status, is or was, or is or was threatened to be made, a party to any  Proceeding by or in the right of the Company to procure a judgment in its favor, then the  Company shall not indemnify the Indemnitee for any judgment, fines, or amounts paid in  settlement to the Company in connection with such Proceeding.  (d) Indemnification for Expenses if Indemnitee is Wholly or Partly  Successful. Anything in this Agreement to the contrary notwithstanding, to the extent that  
 
 
3  the Indemnitee, by reason of the Indemnitee’s Corporate Status, is or was, or is or was  threatened to be made, a party to any Proceeding and is successful, on the merits or  otherwise, in defending such Proceeding (including dismissal without prejudice), the  Indemnitee shall be indemnified to the maximum extent permitted by law against all  Expenses actually and reasonably incurred by the Indemnitee or on the Indemnitee’s behalf  in connection with the defense of such Proceeding. If the Indemnitee is not wholly  successful in defending any such Proceeding but is successful, on the merits or otherwise,  in defending one or more but less than all claims, issues, or matters in such Proceeding  (including dismissal without prejudice of certain claims), the Company shall indemnify the  Indemnitee against all Expenses actually and reasonably incurred by the Indemnitee or on  the Indemnitee’s behalf in defending each such successfully resolved claim, issue, or  matter. To the extent the Indemnitee has been successful, on the merits or otherwise, in  defending any Proceeding, or in defending any claim, issue, or matter therein, the  Indemnitee shall be entitled to indemnification as provided in this Section 2(d) regardless  of whether the Indemnitee met the standards of conduct set forth in Sections 2(b) and 2(c)  hereof.  (e) Indemnification for Expenses as a Witness. Anything in this  Agreement to the contrary notwithstanding, to the fullest extent permitted by applicable  law, to the extent that the Indemnitee, by reason of the Indemnitee’s Corporate Status, is or  was, or is or was threatened to be made, a witness in any Proceeding to which the  Indemnitee is not a party, the Indemnitee shall be indemnified against all Expenses actually  and reasonably incurred by the Indemnitee or on the Indemnitee’s behalf in connection  therewith. To the extent permitted by applicable law, the Indemnitee shall be entitled to  indemnification for Expenses incurred in connection with being or threatened to be made  a witness, as provided in this Section 2(e), regardless of whether the Indemnitee met the  standards of conduct set forth in Sections 2(b) and 2(c) hereof.  (f) Partial Indemnification. If the Indemnitee is entitled under any  provision of this Agreement to indemnification by the Company for some or a portion of  the Losses actually and reasonably incurred by the Indemnitee in a Proceeding, but not for  the total amount thereof, the Company shall indemnify the Indemnitee for the portion of  such Losses to which the Indemnitee is entitled.  Section 3. Advancement of Expenses. Anything in this Agreement to the  contrary notwithstanding, but subject to Section 4 hereof, if, by reason of the Indemnitee’s  Corporate Status, the Indemnitee is or was, or is or was threatened to be made, a party to,  or is or was otherwise involved in, or is or was, or is or was threatened to be made, a witness  to any Proceeding (including, without limitation, a Proceeding brought by or in the right of  the Company to procure a judgment in its favor), then the Company shall advance all  Expenses actually and reasonably incurred by or on behalf of the Indemnitee in connection  with any such Proceeding in advance of the final disposition of such Proceeding within  thirty (30) calendar days after the receipt by the Company of a written request for such  advance or advances from time to time. Such written request shall include or be  accompanied by a statement or statements reasonably evidencing the Expenses incurred by  or on behalf of the Indemnitee and for which advancement is requested, and shall include  
 
 
4  or be preceded or accompanied by an undertaking by or on behalf of the Indemnitee to  repay any Expenses advanced if it shall ultimately be determined by final judicial decision  from which there is no further right to appeal that the Indemnitee is not entitled to be  indemnified against such Expenses under this Agreement or otherwise. Such undertaking  shall be sufficient for purposes of this Section 3 if it is in substantially the form attached  hereto as Exhibit A. Any advances and undertakings to repay pursuant to this Section 3  shall be unsecured and interest free. The Indemnitee shall be entitled to advancement of  Expenses as provided in this Section 3 regardless of any determination by or on behalf of  the Company that the Indemnitee has not met the standards of conduct set forth in Sections  2(b) and 2(c) hereof.  Section 4. Proceedings Against the Company; Certain Securities Laws Claims.  (a) Anything in Section 2 or Section 3 hereof to the contrary  notwithstanding, except as provided in Section 7(d) hereof, with respect to a Proceeding  initiated against the Company by the Indemnitee (whether initiated by the Indemnitee in or  by reason of such person’s capacity as an officer or director of the Company or in or by  reason of any other capacity, including, without limitation, as an employee or agent of the  Company or a director, officer, employee, or agent of Another Enterprise), the Company  shall not be required to indemnify or to advance Expenses to the Indemnitee in connection  with prosecuting such Proceeding (or any part thereof) or in defending any counterclaim,  cross-claim, affirmative defense, or like claim of the Company in such Proceeding (or part  thereof) unless such Proceeding was authorized by the Board of Directors of the Company.  For purposes of this Section 4, a compulsory counterclaim by the Indemnitee against the  Company in connection with a Proceeding initiated against the Indemnitee by the Company  shall not be considered a Proceeding (or part thereof) initiated against the Company by the  Indemnitee, and the Indemnitee shall have all rights of indemnification and advancement  with respect to any such compulsory counterclaim in accordance with and subject to the  terms of this Agreement.  (b) Anything in Section 2 (other than Section 2(d)) or Section 3 hereof  to the contrary notwithstanding, except as provided in Section 2(d) hereof with respect to  indemnification of Expenses in connection with whole or partial success on the merits or  otherwise in defending any Proceeding, the Company shall not be required to indemnify  the Indemnitee in connection with any claim made against Indemnitee for (i) an accounting  of profits made from the purchase and sale (or sale and purchase) by Indemnitee of  securities of the Company within the meaning of Section 16(b) of the Securities Exchange  Act of 1934 or similar provisions of state statutory law or common law; (ii) any  reimbursement of the Company by the Indemnitee of any bonus or other incentive-based  or equity-based compensation or of any profits realized by the Indemnitee from the sale of  securities of the Company, as required in each case under the Securities Exchange Act of  1934 (including any such reimbursements that arise from an accounting restatement of the  Company pursuant to Section 304 of the Sarbanes-Oxley Act of 2002 (the “Sarbanes- Oxley Act”), or the payment to the Company of profits arising from the purchase and sale  by Indemnitee of securities in violation of Section 306 of the Sarbanes-Oxley Act); or (iii)  any reimbursement to the Company by the Indemnitee, withholding of any bonus or other  
 
 
5  incentive-based compensation by the Company or clawback by the Company of any bonus  or other incentive-based compensation, pursuant to a Clawback Policy adopted by the  Company’s Board of Directors, as such Clawback Policy may currently exist or be  amended in the future.  Section 5.  Procedure for Determination of Entitlement to Indemnification;  Independent Counsel.   (a) To obtain indemnification under this Agreement, the Indemnitee  shall submit to the Company (following the final disposition of the applicable Proceeding)  a written request for indemnification, including therein or therewith, except to the extent  previously provided to the Company in connection with a request or requests for  advancement pursuant to Section 3 hereof, a statement or statements reasonably evidencing  all Losses incurred or paid by or on behalf of the Indemnitee and for which indemnification  is requested. The Secretary of the Company shall, promptly upon receipt of such a request  for indemnification, advise the Board of Directors in writing that the Indemnitee has  requested indemnification.  (b) Upon written request by the Indemnitee for indemnification  pursuant to the first sentence of Section 5(a) hereof, if required by applicable law and to  the extent not otherwise provided pursuant to the terms of this Agreement, a  determination with respect to the Indemnitee’s entitlement to indemnification shall be  made in the specific case as follows: (i) if a Change in Control shall have occurred and if  so requested in writing by the Indemnitee, by Independent Counsel in a written opinion to  the Board of Directors; or (ii) if a Change in Control shall not have occurred (or if a  Change in Control shall have occurred but the Indemnitee shall not have requested that  indemnification be determined by Independent Counsel as provided in subpart (i) of this  Section 5(b)), (A) by a majority vote of the Disinterested Directors, even though less than  a quorum of the Board of Directors, or (B) by a committee of Disinterested Directors  designated by majority vote of the Disinterested Directors, even though less than a  quorum of the Board of Directors, or (C) if there are no such Disinterested Directors or, if  such Disinterested Directors so direct, by Independent Counsel in a written opinion to the  Board of Directors, or (D) by the Company’s stockholders in accordance with applicable  law. Notice in writing of any determination as to the Indemnitee’s entitlement to  indemnification shall be delivered to the Indemnitee promptly after such determination is  made, and if such determination of entitlement to indemnification has been made by  Independent Counsel in a written opinion to the Board of Directors, then such notice shall  be accompanied by a copy of such written opinion. If it is determined that the Indemnitee  is entitled to indemnification, then payment to the Indemnitee of all amounts to which the  Indemnitee is determined to be entitled shall be made within thirty (30) calendar days  after such determination. If it is determined that the Indemnitee is not entitled to  indemnification, then the written notice to the Indemnitee (or, if such determination has  been made by Independent Counsel in a written opinion, the copy of such written opinion  delivered to the Indemnitee) shall disclose the basis upon which such determination is  based. The Indemnitee shall cooperate with the person, persons, or entity making the  determination with respect to the Indemnitee’s entitlement to indemnification, including  
 
 
6  providing to such person, persons, or entity upon reasonable advance request any  documentation or information that is not privileged or otherwise protected from  disclosure and that is reasonably available to the Indemnitee and reasonably necessary to  determine whether and to what extent the Indemnitee is entitled to indemnification.  (c) If the determination of entitlement to indemnification is to be made  by Independent Counsel pursuant to Section 5(b) hereof, the Independent Counsel shall be  selected as provided in this Section 5(c). If a Change in Control shall not have occurred (or  if a Change in Control shall have occurred but the Indemnitee shall not have requested that  indemnification be determined by Independent Counsel as provided in subpart (i) of  Section 5(b)), then the Independent Counsel shall be selected by the Board of Directors,  and the Company shall give written notice to the Indemnitee advising the Indemnitee of  the identity of the Independent Counsel so selected. If a Change in Control shall have  occurred and the Indemnitee shall have requested that indemnification be determined by  Independent Counsel, then the Independent Counsel shall be selected by the Indemnitee  (unless the Indemnitee shall request that such selection be made by the Board of Directors,  in which event the preceding sentence shall apply), and the Indemnitee shall give written  notice to the Company advising it of the identity of the Independent Counsel so selected.  In either event, the Indemnitee or the Company, as the case may be, may, within 10 calendar  days after such written notice of selection has been given, deliver to the Company or to the  Indemnitee, as the case may be, a written objection to such selection; provided, however,  that such objection may be asserted only on the ground that the law firm or person so  selected does not meet the requirements of “Independent Counsel” as defined in Section 23  of this Agreement, and the objection shall set forth the basis of such assertion. Absent a  proper and timely objection, the person so selected shall act as Independent Counsel. If  such written objection is so made and substantiated, the law firm or person so selected may  not serve as Independent Counsel unless and until such objection is withdrawn or the Court  of Chancery of the State of Delaware or another court of competent jurisdiction in the State  of Delaware has determined that such objection is without merit. If the determination of  entitlement to indemnification is to be made by Independent Counsel pursuant to Section  5(b) hereof and, following the expiration of thirty (30) calendar days after submission by  the Indemnitee of a written request for indemnification pursuant to Section 5(a) hereof,  Independent Counsel shall not have been selected, or an objection thereto has been made  and not withdrawn, then either the Company or the Indemnitee may petition the Court of  Chancery of the State of Delaware or another court of competent jurisdiction in the State  of Delaware for resolution of any objection that shall have been made by the Company or  the Indemnitee to the other’s selection of Independent Counsel and/or for appointment as  Independent Counsel of a law firm or person selected by such court (or selected by such  person as the court shall designate), and the law firm or person with respect to whom all  objections are so resolved or the law firm or person so appointed shall act as Independent  Counsel under Section 5(b) hereof. Upon the due commencement of any judicial  proceeding or arbitration pursuant to Section 7(a) of this Agreement, Independent Counsel  shall be discharged and relieved of any further responsibility in such capacity (subject to  the applicable standards of professional conduct then prevailing). If the determination of  entitlement to indemnification is to be made by Independent Counsel pursuant to Section  5(b) hereof, then the Company agrees to pay the reasonable fees and expenses of such  
 
 
7  Independent Counsel and to fully indemnify and hold harmless such Independent Counsel  against any and all Expenses, claims, liabilities, and damages arising out of or relating to  this Agreement or its engagement pursuant hereto.   Section 6. Burden of Proof; Defenses; and Presumptions.  (a) In any judicial proceeding or arbitration pursuant to Section 7 hereof  brought by the Indemnitee to enforce rights to indemnification or to an advancement of  expenses hereunder, or in any action, suit, or proceeding brought by the Company to  recover an advancement of expenses (whether pursuant to the terms of an undertaking or  otherwise), the burden shall be on the Company to prove that the Indemnitee is not entitled  to be indemnified, or to such an advancement of expenses, as the case may be.  (b) It shall be a defense in any judicial proceeding or arbitration  pursuant to Section 7 hereof to enforce rights to indemnification under Section 2(b) or  Section 2(c) hereof (but not in any judicial proceeding or arbitration pursuant to Section 7  hereof to enforce a right to an advancement of expenses under Section 3 hereof) that the  Indemnitee has not met the standards of conduct set forth in Section 2(b) or Section 2(c),  as the case may be, but the burden of proving such defense shall be on the Company. With  respect to any judicial proceeding or arbitration pursuant to Section 7 hereof brought by  the Indemnitee to enforce a right to indemnification hereunder, or any action, suit, or  proceeding brought by the Company to recover an advancement of expenses (whether  pursuant to the terms of an undertaking or otherwise), neither (i) the failure of the Company  (including by its directors or Independent Counsel) to have made a determination prior to  the commencement of such action, suit, proceeding, or arbitration that indemnification is  proper in the circumstances because the Indemnitee has met the applicable standards of  conduct, nor (ii) an actual determination by the Company (including by its directors or  Independent Counsel) that the Indemnitee has not met such applicable standards of  conduct, shall create a presumption that the Indemnitee has not met the applicable standards  of conduct or, in the case of a judicial proceeding or arbitration pursuant to Section 7 hereof  brought by the Indemnitee seeking to enforce a right to indemnification, be a defense to  such proceeding or arbitration.   (c) The termination of any Proceeding by judgment, order, settlement,  conviction, or upon a plea of nolo contendre or its equivalent, shall not, of itself, adversely  affect the right of the Indemnitee to indemnification hereunder or create a presumption that  the Indemnitee did not act in good faith and in a manner the Indemnitee reasonably believed  to be in or not opposed to the best interests of the Company, and, with respect to any  criminal Proceeding, that the Indemnitee had reasonable cause to believe that his or her  conduct was unlawful.  (d) For purposes of any determination of good faith, Indemnitee shall  be deemed to have acted in good faith if Indemnitee’s action is based on the records or  books of account of the Company or Other Enterprise, including financial statements, or  on information supplied to Indemnitee by the officers of the Company or Other Enterprise  in the course of their duties, or on the advice of legal counsel for the Company or Other  Enterprise or on information or records given or reports made to the Company or Other  
 
 
8  Enterprise by an independent certified public accountant or by an appraiser or other expert  selected by the Company or Other Enterprise. The provisions of this Section 6(d) shall not  be deemed to be exclusive or to limit in any way the other circumstances in which the  Indemnitee may be deemed or found to have met the applicable standard of conduct set  forth in this Agreement.  (e) The knowledge and/or actions, or failure to act, of any other director,  officer, agent, or employee of the Company or of Another Enterprise shall not be imputed  to the Indemnitee for purposes of determining the Indemnitee’s right to indemnification  under this Agreement.  Section 7. Remedies of Indemnitee.  (a) In the event that (i) a determination is made pursuant to Section 5 of  this Agreement that the Indemnitee is not entitled to indemnification under this Agreement,  (ii) advancement of Expenses is not timely made pursuant to Section 3 of this Agreement,  (iii) except when the determination of entitlement to indemnification is to be made by  Independent Counsel pursuant to Section 5(b) hereof, no determination of entitlement to  indemnification shall have been made pursuant to Section 5(b) of this Agreement within  sixty (60) calendar days after receipt by the Company of the Indemnitee’s written request  for indemnification, (iv) under circumstances in which the determination of entitlement to  indemnification is to be made by Independent Counsel pursuant to Section 5(b) hereof, no  determination of entitlement to indemnification shall have been made pursuant to Section  5(b) hereof within eighty (80) calendar days after receipt by the Company of the  Indemnitee’s written request for indemnification (unless an objection to the selection of  such Independent Counsel has been made and substantiated and not withdrawn, in which  case the applicable time period shall be seventy (70) calendar days after the Court of  Chancery of the State of Delaware or another court of competent jurisdiction in the State  of Delaware (or such person appointed by such court to make such determination) has  determined or appointed the person to act as Independent Counsel pursuant to Section 5(b)  hereof), (v) payment of indemnification is not made pursuant to Section 2(d) or Section  2(e) of this Agreement within thirty (30) calendar days after receipt by the Company of a  written request therefor, or (vi) payment of indemnification pursuant to Section 2(b) or  Section 2(c) of this Agreement is not made within thirty (30) calendar days after a  determination has been made pursuant to Section 5(b) that the Indemnitee is entitled to  indemnification, then the Indemnitee shall be entitled to seek an adjudication by the Court  of Chancery of the State of Delaware of the Indemnitee’s entitlement to such  indemnification or advancement of Expenses. Alternatively, if the foregoing conditions  have been satisfied, the Indemnitee, at his or her option, may seek an award in arbitration  to be conducted by a single arbitrator pursuant to the Commercial Arbitration Rules of the  American Arbitration Association. The Indemnitee shall commence such proceeding  seeking an adjudication or an award in arbitration within one hundred and eighty (180)  calendar days following the date on which the Indemnitee first has the right to commence  such proceeding pursuant to this Section 7(a); provided, however, that the foregoing clause  shall not apply in respect of a proceeding brought by the Indemnitee to enforce his or her  rights to indemnification under Section 2(d) of this Agreement.  
 
 
9  (b) In the event that a determination shall have been made pursuant to  Section 5(b) of this Agreement that the Indemnitee is not entitled to indemnification, any  judicial proceeding or arbitration commenced pursuant to this Section 7 shall be conducted  in all respects as a de novo trial, or arbitration, on the merits and the Indemnitee shall not  be prejudiced by reason of that adverse determination.  (c) If a determination shall have been made pursuant to Section 5(b) of  this Agreement that the Indemnitee is entitled to indemnification, the Company shall be  bound by such determination in any judicial proceeding or arbitration commenced pursuant  to this Section 7, absent (i) a misstatement or misrepresentation by the Indemnitee (or  anyone acting on the Indemnitee’s behalf) of a material fact, or an omission of a material  fact necessary to make the Indemnitee’s statement (or statements of persons acting on  behalf of the Indemnitee) not materially misleading, in connection with the request for  indemnification or in connection with the provision of information or documentation  pursuant to the last sentence of Section 5(b), or (ii) a prohibition of such indemnification  under applicable law.  (d) In the event that the Indemnitee, pursuant to this Section 7, seeks a  judicial adjudication of or an award in arbitration to enforce the Indemnitee’s rights under,  or to recover damages for breach of, this Agreement, then the Indemnitee shall be entitled  to recover from the Company, and shall be indemnified by the Company against, any and  all Expenses actually and reasonably incurred by or on behalf of such Indemnitee in such  judicial adjudication or arbitration, but only if (and only to the extent) the Indemnitee  prevails therein. If it shall be determined in said judicial adjudication or arbitration that the  Indemnitee is entitled to receive part but not all of the indemnification or advancement of  Expenses sought, the expenses incurred by the Indemnitee in connection with such judicial  adjudication or arbitration shall be appropriately prorated.  Section 8. Non-Exclusivity. Except to the extent expressly provided herein,  and only to such extent, the rights of indemnification and to receive advancement of  Expenses as provided by this Agreement shall not be deemed exclusive of any other rights  to which the Indemnitee may at any time be entitled under applicable law, the Company’s  Certificate of Incorporation, the Company’s Bylaws, any agreement, a vote of stockholders,  a resolution of directors, or otherwise, both as to action in or by reason of the Indemnitee’s  Corporate Status and as to action in or by reason of any other capacity of the Indemnitee  while serving as a director or officer of the Company. No right or remedy herein conferred  is intended to be exclusive of any other right or remedy, and every other right and remedy  shall be cumulative and in addition to every other right and remedy given hereunder or now  or hereafter existing at law or in equity or otherwise. In the event of any change after the  date of this Agreement in any applicable law, statute, or rule that expands the power of a  Delaware corporation to indemnify a member of its board of directors or an officer,  employee, agent, or fiduciary, it is the intent of the parties hereto that Indemnitee shall  enjoy by this Agreement the greatest benefits afforded by such change. Anything in this  Section 8 to the contrary notwithstanding, to the extent the time periods specified in Section  3 and Section 7(a) hereof with respect to the time at which the Indemnitee shall be entitled  to seek an adjudication or an award in arbitration as to the Indemnitee’s entitlement to  
 
 
10  indemnification or advancement differ from similar time periods specified in the  Company’s Certificate of Incorporation or Bylaws, the time periods set forth in Section 3  and Section 7(a) hereof shall control and be binding on the Indemnitee and the Company  and shall be deemed a waiver of any contrary right specified in the Company’s Certificate  of Incorporation or Bylaws. The assertion or employment of any right or remedy hereunder,  or otherwise, shall not prevent the concurrent assertion or employment of any other right  or remedy.  Section 9. Insurance; Subrogation; Other Sources of Payment.  (a) To the extent that the Company maintains an insurance policy or  policies providing liability insurance for directors, officers, employees, or agents of the  Company or Another Enterprise, Indemnitee shall be covered by such policy or policies in  accordance with its or their terms to the maximum extent of the coverage available for any  such director, officer, employee or agent under such policy or policies. If, at the time of the  receipt of a notice of a claim pursuant to the terms hereof, the Company has director and  officer liability insurance in effect, the Company shall give prompt notice of the  commencement of such proceeding to the insurers in accordance with the procedures set  forth in the respective policies. The Company shall thereafter take all necessary or desirable  action to cause such insurers to pay, on behalf of the Indemnitee, all amounts payable as a  result of such proceeding in accordance with the terms of such policies. To the extent that  the Company maintains an insurance policy or policies providing liability insurance for  directors, officers, employees, or agents of the Company or Another Enterprise, the  provision of directors’ and officers’ liability insurance as provided in this Section 9(a) shall  be in addition to the Company’s obligations under Sections 2 and 3 hereof and shall not be  deemed to be in satisfaction of those obligations.  (b) In the event of any payment to or on behalf of the Indemnitee under  this Agreement, the Company shall be subrogated to the extent of such payment to all of  the rights of recovery of the Indemnitee, who shall execute all papers required and take all  action necessary to secure such rights, including execution of such documents as are  necessary to enable the Company to bring suit to enforce such rights.  (c) Except to the extent required by applicable law, the Company shall  not be liable under this Agreement to make any payment to Indemnitee with respect to  amounts otherwise indemnifiable hereunder (or for which advancement is otherwise  provided hereunder) if and to the extent that the Indemnitee has otherwise actually received  such payment under any insurance policy, contract, agreement, or otherwise. Nothing  hereunder is intended to affect any right of contribution of or against the Company in the  event the Company and any other person or persons have co-equal obligations to indemnify  or advance expenses to Indemnitee.   (d) The Company’s obligation to indemnify or advance Expenses  hereunder to the Indemnitee, in connection with or by reason of Indemnitee’s service at the  request of the Company as a director, officer, employee, agent, or fiduciary of Another  Enterprise, shall be reduced by any amount that the Indemnitee has actually received as  indemnification or advancement of Expenses from such Other Enterprise with respect to  
 
 
11  the Proceeding for which indemnification or advancement of Expenses is sought.  Section 10. Contribution. To the fullest extent permitted by applicable law, if the  indemnification provided for in this Agreement is unavailable to Indemnitee for any reason  whatsoever, the Company, in lieu of indemnifying Indemnitee, shall contribute to the  amount incurred by Indemnitee, for any and all Losses, in connection with any claim  relating to an indemnifiable event under this Agreement, in such proportion as is deemed  fair and reasonable in light of all of the circumstances of such Proceeding in order to reflect  (i) the relative benefits received by the Company, on the one hand, and Indemnitee, on the  other hand, as a result of the event(s) and/or transaction(s) giving cause to such Proceeding;  and/or (ii) the relative fault of the Company (and its directors, officers, employees and  agents), on the one hand, and Indemnitee, on the other hand, in connection with such  event(s) and/or transaction(s).  Section 11.  Settlements. Anything in this Agreement or the Company’s  Certificate of Incorporation or Bylaws to the contrary notwithstanding, the Company shall  have no obligation to indemnify the Indemnitee for any amounts paid by or on behalf of  the Indemnitee in settlement of any Proceeding, unless the Company has consented in  writing to such settlement, which consent shall not be unreasonably withheld. The  Company shall not settle any claim in any manner that would impose any fine or any  obligation on the Indemnitee without the Indemnitee’s prior written consent, which consent  shall not be unreasonably withheld.  Section 12. Survival of Rights; Binding Effect; Successors and Assigns.  (a) The indemnification and advancement of Expenses and other rights  provided by, or granted pursuant to, this Agreement shall continue during the period that  the Indemnitee is a director or officer of the Company and shall continue through and after  the Termination Date so long as Indemnitee shall be subject to any possible Proceeding  (including any appeal thereto), by reason of Indemnitee’s Corporate Status, with respect to  claims arising from any action taken or omitted (or that are alleged to have been taken or  omitted) by the Indemnitee, or from any facts or events that occurred (or that are alleged to  have occurred), on or before the Termination Date, and shall further continue for such  period of time following the conclusion of any such Proceeding as may be reasonably  necessary for Indemnitee to enforce rights and remedies pursuant to this Agreement as  provided in Section 7 of this Agreement.  (b) This Agreement shall be binding upon the Indemnitee and upon the  Company and its successors and assigns, and shall inure to the benefit of the Indemnitee,  the Indemnitee’s heirs, personal representatives, executors, administrators, and assigns and  to the benefit of the Company and its successors and assigns.  (c) The Company further agrees that in the event the Company or any  of its successors or assigns (i) consolidates with or merges into any other corporation or  entity and shall not be the continuing or surviving corporation or entity of such  consolidation or merger or (ii) transfers or conveys all or substantially all of its properties  and assets to any corporation or entity, then, and in each such case, to the extent necessary,  
 
 
12  proper provision shall be made so that the successors and assigns of the Company as a  result of such transaction assume the obligations of the Company set forth in this  Agreement, including, without limitations, the requirements with respect to directors’ and  officers’ liability insurance set forth in Section 9.  Section 13. Severability. If any provision or provisions of this Agreement shall  be held to be invalid, illegal, or unenforceable for any reason whatsoever: (a) the validity,  legality, and enforceability of the remaining provisions of this Agreement (including  without limitation, each portion of any Section of this Agreement containing any such  provision held to be invalid, illegal, or unenforceable, that is not itself invalid, illegal, or  unenforceable) shall not in any way be affected or impaired thereby and shall remain  enforceable to the fullest extent permitted by law; (b) such provision or provisions shall be  deemed reformed to the extent necessary to conform to applicable law and to give the  maximum effect to the intent of the parties hereto; and (c) to the fullest extent possible, the  provisions of this Agreement (including, without limitation, each portion of any Section of  this Agreement containing any such provision held to be invalid, illegal, or unenforceable,  that it not itself invalid, illegal, or unenforceable) shall be construed so as to give effect to  the intent manifested thereby.  Section 14. Acknowledgement. The Company expressly acknowledges,  confirms, and agrees that it has entered into this Agreement and has assumed the  obligations imposed on the Company hereby in order to induce the Indemnitee to serve or  continue to serve as a director or officer of the Company, and the Company acknowledges  that the Indemnitee is relying upon this Agreement in serving and continuing to serve in  such capacity. In addition, both the Company and Indemnitee acknowledge that in certain  instances, federal law or applicable public policy may prohibit the Company from  indemnifying its directors, officers, employees, agents or fiduciaries under this Agreement  or otherwise. Indemnitee understands and acknowledges that the Company may be required  in the future to undertake with the Securities and Exchange Commission to submit the  question of indemnification to a court in certain circumstances for a determination of the  Company’s rights under public policy to indemnify Indemnitee.  Section 15. Notice by Indemnitee. The Indemnitee agrees to notify the Company  promptly and in writing upon being served with any summons, citation, subpoena,  complaint, petition, indictment, information, or other document relating to the  commencement or threatened commencement of any Proceeding or matter that may be  subject to indemnification or advancement of Expenses covered hereunder. The failure of  the Indemnitee to so notify the Company shall not relieve the Company of any obligation  that it may have to the Indemnitee under this Agreement or otherwise, except to the extent  the Company is materially prejudiced by such failure.  Section 16. Notices. All notices, requests, demands and other communications  hereunder shall be in writing and shall be deemed to have been duly given (i) if delivered  by hand to the party to whom said notice or other communication shall have been directed,  on the date so delivered, or (ii) if mailed by certified or registered mail with postage  prepaid, on the third business day after the date on which it is so mailed. All such notices,  
 
 
13  requests, demands, and other communications shall be delivered to the Indemnitee or to the  Company, as the case may be, at the following addresses:   (a) If to the Indemnitee, to the address set forth on the signature  page hereto.  (b) If to the Company, to:  Centuri Holdings, Inc.  19820 North 7th Avenue, Suite 120  Phoenix, Arizona 85027  Attention: General Counsel  or to such other address as may have been furnished to the Indemnitee by the Company or  to the Company by the Indemnitee, as the case may be, by like notice.  Section 17. Counterparts. This Agreement may be executed in one or more  counterparts, each of which shall for all purposes be deemed to be an original but all of  which together shall constitute one and the same Agreement.  Section 18. Headings. The headings of the paragraphs of this Agreement are  inserted for convenience only and shall not be deemed to constitute part of this Agreement  or to affect the construction thereof.  Section 19. Entire Agreement. This Agreement constitutes the entire agreement  between the parties hereto with respect to the subject matter hereof and supersedes all prior  agreements and understandings, oral, written, and implied, between the parties hereto with  respect to the subject matter hereof.  Section 20. Modification and Waiver.   (a) No amendment, modification, supplementation, or repeal of this  Agreement or any provision hereof shall be binding unless executed in writing by both of  the parties hereto. No waiver of any of the provisions of this Agreement shall be deemed  or shall constitute a waiver of any other provisions hereof (whether or not similar) nor shall  such waiver constitute a continuing waiver.  (b) No amendment, modification, supplementation, or repeal of this  Agreement or of any provision hereof shall limit or restrict any rights of the Indemnitee  under this Agreement in respect of any action taken or omitted by the Indemnitee in or by  reason of the Indemnitee’s Corporate Status prior to such amendment, modification,  supplementation, or repeal.   Section 21. Governing Law; Submission to Jurisdiction; Service of Process.  (a) This Agreement and the legal relations among the parties with  respect to the matters addressed hereby shall be governed by, and construed and enforced  
 
 
14  in accordance with, the laws of the State of Delaware, without regard to its conflict of laws  rules.   (b) Except with respect to any arbitration commenced by the Indemnitee  pursuant to Section 7(a) of this Agreement and except to the extent permitted by Section  2(c) hereof with respect to a determination by a court in which an underlying Proceeding  was brought that the Indemnitee is entitled to indemnification of Expenses notwithstanding  an adjudication of liability to the Company, the Company and the Indemnitee each hereby  irrevocably and unconditionally (i) agrees and consents to the jurisdiction of the courts of  the State of Delaware for all purposes in connection with any action, suit, or proceeding  that arises out of or relates to this Agreement and agrees that any such action instituted  under this Agreement shall be brought only in the Court of Chancery of the State of  Delaware (or in any other state court of the State of Delaware if the Court of Chancery does  not have subject matter jurisdiction over such action), and not in any other state or federal  court in the United States of America or any court or tribunal in any other country; (ii)  consents to submit to the exclusive jurisdiction of the courts of the State of Delaware for  purposes of any action or proceeding arising out of or in connection with this Agreement;  (iii) waives any objection to the laying of venue of any such action or proceeding in the  courts of the State of Delaware; and (iv) waives, and agrees not to plead or to make, any  claim that any such action or proceeding brought in the courts of the State of Delaware has  been brought in an improper or otherwise inconvenient forum.  (c) Each of the Company and the Indemnitee hereby consents to service  of any summons and complaint and any other process that may be served in any action,  suit, or proceeding arising out of or relating to this Agreement in any court of the State of  Delaware by mailing by certified or registered mail, with postage prepaid, copies of such  process to such party at its address for receiving notice pursuant to Section 16 hereof.  Nothing herein shall preclude service of process by any other means permitted by  applicable law.  Section 22. Nature of Agreement. This Agreement shall not be deemed an  employment contract between the Company and the Indemnitee, and, if Indemnitee is an  officer or employee of the Company, Indemnitee specifically acknowledges that  Indemnitee may be discharged as an officer or employee of the Company at any time for  any reason, with or without cause, and with or without severance compensation, except as  may be otherwise provided in a separate written contract between the Company and the  Indemnitee.  Section 23. Definitions. For purposes of this Agreement:  (a) “Another Enterprise” and “Other Enterprise” refer to a corporation,  partnership, limited liability company, joint venture, trust, employee benefit plan, or any  other form of enterprise, other than the Company.  (b) “Change in Control” means, and shall be deemed to have occurred  if, (i) any “person” (as such term is used in Sections 13(d) and 14(d) of the Securities  Exchange Act of 1934, as amended), other than a trustee or other fiduciary holding  
 
 
15  securities under an employee benefit plan of the Company acting in such capacity or a  corporation owned directly or indirectly by the stockholders of the Company in  substantially the same proportions as their ownership of stock of the Company, becomes  the “beneficial owner” (as defined in Rule 13d-3 under said Act), directly or indirectly, of  securities of the Company representing more than fifty percent (50%) of the total voting  power represented by the Company’s then outstanding voting stock, (ii) during any period  of two (2) consecutive years (not including any period prior to the execution of this  Agreement), individuals who at the beginning of such period constitute the Board of  Directors of the Company and any new director whose election by the Board of Directors  or nomination for election by the Company’s stockholders was approved by a vote of at  least a majority of the directors then still in office who either were directors at the beginning  of the period or whose election or nomination for election was previously so approved,  cease for any reason to constitute a majority thereof, (iii) the stockholders of the Company  approve a merger or consolidation of the Company with any other corporation other than a  merger or consolidation that would result in the voting stock of the Company outstanding  immediately prior thereto continuing to represent (either by remaining outstanding or by  being converted into voting stock of the surviving entity) at least fifty percent (50%) of the  total voting power represented by the voting stock of the Company or such surviving entity  outstanding immediately after such merger or consolidation, or (iv) the stockholders of the  Company approve a plan of complete liquidation of the Company or an agreement for the  sale or disposition by the Company (in one transaction or a series of related transactions)  of all or substantially all of the Company’s assets.  (c) “Corporate Status” describes (1) the Indemnitee’s status as a present  or former director or officer of the Company, (2) the Indemnitee’s present or former status,  at any time while serving as a director or officer of the Company, as a director, officer,  employee, agent, or fiduciary of Another Enterprise to the extent the Indemnitee is or was  serving in such capacity with respect to such Other Enterprise at the request of Company,  and (3) the Indemnitee’s present or former status as a director, officer, employee, agent, or  fiduciary of Another Enterprise to the extent the Indemnitee served in such capacity with  respect to such Other Enterprise while serving as a director or officer of the Company,  continued serving in such capacity with respect to such Other Enterprise after ceasing to be  a director or officer of the Company, and is or was serving in such capacity with respect to  such Other Enterprise at the request of Company.  (d) “Expenses” includes, without limitation, reasonable attorneys’ fees;  retainers; disbursements of counsel; court costs; filing fees; transcript costs; fees and  expenses of experts; fees and expenses of witnesses; fees and expenses of accountants and  other consultants (excluding public relations consultants unless approved in advance by the  Company); travel expenses; duplicating and imaging costs; printing and binding costs;  telephone charges; facsimile transmission charges; computer legal research costs; postage;  delivery service fees; fees and expenses of third-party vendors; the premium, security for,  and other costs associated with any bond (including supersedeas or appeal bonds,  injunction bonds, cost bonds, appraisal bonds or their equivalents), in each case actually  and reasonably incurred in connection with prosecuting, defending, preparing to prosecute  or defend, investigating, being or preparing to be a witness in, or otherwise participating  
 
 
16  in, a Proceeding (including, without limitation, any judicial or arbitration Proceeding  brought to enforce the Indemnitee’s rights under, or to recover damages for breach of, this  Agreement), as well as all other “expenses” within the meaning of that term as used in  Section 145 of the General Corporation Law of the State of Delaware and all other  disbursements or expenses of types customarily and reasonably incurred in connection with  prosecuting, defending, preparing to prosecute or defend, investigating, being or preparing  to be a witness in, or otherwise participating in, actions, suits, or proceedings similar to or  of the same type as the Proceeding with respect to which such disbursements or expenses  were incurred; but, notwithstanding anything in the foregoing to the contrary, “Expenses”  shall not include amounts of judgments, penalties, or fines actually levied against the  Indemnitee in connection with any Proceeding.  (e) “Disinterested Director” means a director of the Company who is  not and was not a party to the Proceeding in respect of which indemnification is sought by  the Indemnitee.  (f) “Independent Counsel” means a law firm, or a person admitted to  practice law in any State of the United States, that is experienced in matters of corporation  law and neither presently is, nor in the past three years has been, retained to represent: (i)  the Company or the Indemnitee in any matter material to either such party (other than with  respect to serving as Independent Counsel (or similar independent legal counsel position)  as to matters concerning the rights of Indemnitee under this Agreement, the rights of other  indemnitees under similar indemnification agreements, or the rights of Indemnitee or other  indemnitees to indemnification under the Company’s Certificate of Incorporation or  Bylaws), or (ii) any other party to the Proceeding giving rise to a claim for indemnification  hereunder. Notwithstanding the foregoing, the term “Independent Counsel” shall not  include any law firm or person who, under the applicable standards of professional conduct  then prevailing, would have a conflict of interest in representing either the Company or the  Indemnitee in an action to determine the Indemnitee’s rights under this Agreement. For the  avoidance of doubt, the term “Independent Counsel” shall not include any law firm or  person who represented or advised any entity or person in connection with a Change in  Control of the Company.  (g) “Losses” means all Expenses, judgments, penalties, fines, liabilities,  and amounts paid in settlement in connection with a Proceeding.  (h) “Proceeding” means any threatened, pending, or completed action,  suit, arbitration, alternative dispute resolution mechanism, investigation (including any  internal investigation), inquiry, administrative hearing, or any other threatened, pending, or  completed proceeding, whether brought by or in the right of the Company or otherwise,  and whether civil, criminal, administrative, or investigative.  (i) “Termination Date” shall mean the date on which the Indemnitee is  no longer a director or officer of the Company; provided, however, that if (1) the  Indemnitee continues to serve as a director, officer, employee, agent, or fiduciary of  Another Enterprise after the date on which the Indemnitee is no longer a director or officer  of the Company, (2) the Indemnitee is serving in such capacity with respect to such Other  
 
 
17  Enterprise at the request of the Company, and (3) the Indemnitee served in such capacity  with respect to such Other Enterprise while serving as a director or officer of the Company,  then “Termination Date” shall mean such later date after the Indemnitee is no longer a  director or officer of the Company or which the Indemnitee is no longer serving in such  capacity with respect to such Other Enterprise.  (j) References herein to “fines” shall include any excise tax assessed  with respect to any employee benefit plan.  (k) References herein to a director of Another Enterprise or a director of  an Other Enterprise shall include, in the case of any entity that is not managed by a board  of directors, such other position, such as manager or trustee or member of the governing  body of such entity, that entails responsibility for the management and direction of such  entity’s affairs, including, without limitation, the general partner of any partnership  (general or limited) and the manager or managing member of any limited liability company.  (l) (i) References herein to serving at the request of the Company as a  director, officer, employee, agent, or fiduciary of Another Enterprise shall include any  service as a director, officer, employee, or agent of the Company that imposes duties on, or  involves services by, such director or officer with respect to an employee benefit plan of  the Company or any of its affiliates, other than solely as a participant or beneficiary of such  a plan; and (ii) if the Indemnitee has acted in good faith and in a manner the Indemnitee  reasonably believed to be in the interest of the participants and beneficiaries of an employee  benefit plan, the Indemnitee shall be deemed to have acted in a manner not opposed to the  best interests of the Company for purposes of this Agreement.  (Signature page follows.)    
 
 
  IN WITNESS WHEREOF, the Company and the Indemnitee have executed this  Agreement on and as of the day and year first above written.       CENTURI HOLDINGS, INC.        By:     Name:    Title:      
 
 
  IN WITNESS WHEREOF, the Company and the Indemnitee have executed this  Agreement on and as of the day and year first above written.       INDEMNITEE     By:     Name:      Address:  [Address]                                            
 
 
  Schedule A  Indemnitee Date of Signature  Julie A. Dill April 17, 2024  Andrew W. Evans April 17, 2024  William J. Fehrman April 17, 2024  Karen S. Haller April 17, 2024  Gregory A. Izenstark April 17, 2024  Christoper A. Krummel April 17, 2024  Anne L. Mariucci April 17, 2024  Christoper R. Patton April 17, 2024  James S. Wilcock April 17, 2024    
 
 
  Exhibit A  UNDERTAKING    I ___________________________________________________, agree to reimburse the  Company for all expenses paid to me or on my behalf by the Company in connection with my  involvement in [name or description of proceeding or proceedings], in the event, and to the  extent, that it shall ultimately be determined that I am not entitled to be indemnified by the  Company for such expenses.       Signature _____________________________    Typed Name __________________________       __________________ ) ss:    Before me ______________________, on this day personally appeared ___________________,  known to me to be the person whose name is subscribed to the foregoing instrument, and who,  after being duly sworn, stated that the contents of said instrument is to the best of his/her  knowledge and belief true and correct and who acknowledged that he/she executed the same for  the purpose and consideration therein expressed.    GIVEN under my hand and official seal at ________, this _______ day of ___________, 20___.     ________________________________  Notary Public  My commission expires: