Offer Letter, dated August 30, 2021, by and between Energy Vault, Inc. and Gonca Icoren

Exhibit 10.30

August 30, 2021

Gonca Icoren

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Dear Gonca:

It gives me great pleasure to offer you employment as Chief People Officer for Energy Vault, Inc. (the “Company”). You will report to me, Robert Piconi, Chief Executive Officer, Energy Vault, Inc. As we discussed you will begin your employment on September 7, 2021, and the following terms and conditions will apply to your employment:

“Good Reason” is defined as (i) you are assigned duties materially inconsistent with, or reflecting a materially adverse change in, your compensation, position, duties, or responsibilities with the Company or (ii) the Company’s principal executive offices are relocated to a location which would require you to commute at least thirty (30) miles more each way than your commute to the Company’s principal executive offices as of the date of this Agreement.

“Cause” is defined as (i) any act of fraud, embezzlement or dishonesty taken by you in connection with your job responsibilities, (ii) your conviction of or plea of guilty or nolo contendere to a felony, (iii) your willful misconduct which adversely affects or is likely to adversely affect the business and affairs of the Company, (iv) your continued willful refusal to perform your employment duties after you have received a written demand for performance from the Company which specifically sets forth the factual basis for the Company's belief that you have willfully refused to perform your duties or (v) your material breach of any provision of your offer letter or Employee Confidentiality Agreement or Non-Disclosure Agreement.

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As a condition of your employment with the Company, you will furnish and will continue to furnish the Company all necessary documentation that will satisfy the requirements of the Immigration Reform and Control Act of 1986.

Your employment is expressly contingent upon the acceptable results of a background check. Any falsification of an applicant's employment history or educational background will result in withdrawal of the offer and or termination of employment, if hired.

Your employment with the Company is at will. This means that either you or the Company may terminate your employment at any time, with or without cause and with or without notice. We both agree that any dispute arising with respect to your employment and the termination of that employment shall be conclusively settled by final and binding arbitration in accordance with the arbitration procedures described in the Employee Confidentiality and Non-Disclosure Agreement.

By signing this letter, you acknowledge that the terms described in this letter, together with the Employee Confidentiality and Non-Disclosure Agreement, sets forth the entire understanding between us and supersedes any prior representations or agreements, whether written or oral; there are no terms, conditions, representations, warranties or covenants other than those contained herein. No term or provision of this letter may be amended waived, released, discharged or modified except in writing, signed by you and an authorized officer of Energy Vault, Inc. except that the Company may, in its sole discretion, adjust salaries, incentive compensation, benefits, job titles, locations, duties, responsibilities, and reporting relationships.

Enclosed are the following:

1.Attachment IE — RSU Summary Sheet

2.Employee Confidentiality and Non-Disclosure Agreement

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Our offer is contingent on your understanding and acceptance of the agreements and practices referred to in this letter. Please acknowledge your acceptance of this offer of employment on the terms indicated by signing the enclosed copy of this letter, completing the Employee Confidentiality and Non-Disclosure Agreement and returning them to me as soon as possible. Should you have any questions, please feel free to contact me. Gonca, I am personally pleased you have chosen to accept our offer and I look forward to working with you toward our mutual success.

Sincerely,

/s/ Robert Piconi

Robert Piconi
Co-Founder and Chief Executive Officer
Energy Vault, Inc.

I accept the position of Chief People Officer, Energy Vault, Inc., on the terms described within this letter.

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