Employment Letter Agreement between Arconic Corporation and Diana B. Perreiah, dated as of August 5, 2022

cc:    Melissa Miller

As an employee of Arconic Corporation (“Arconic”) or one of its subsidiaries (Arconic collectively with its subsidiaries, the “Company”), you (“you” or “Employee”) will have access to or may develop confidential and proprietary information (as defined below) of the Company. Therefore, in consideration of your continued employment and increases to your compensation package, and recognizing the highly competitive nature of the Company’s business, you enter into this Confidentiality, Non-Competition, and Non-Solicitation Agreement (this “Agreement”) intending to be legally bound.

You acknowledge that, as an employee of the Company, you have access, and are privy, to information which is confidential and proprietary to the Company, and which is not generally available to the public from sources outside of the Company.

You agree to regard and preserve as confidential any and all Confidential Information pertaining to the Company’s operations and affairs and all information which is either learned or obtained by you during your employment, and which you know, or have reason to believe, includes Confidential Information. You agree that you will use Confidential Information only for the performance of your duties for the Company and you agree not to disclose any Confidential Information you acquire, except as expressly permitted below. You understand and agree that this obligation of confidentiality shall continue indefinitely following the termination of your employment with the Company.

Nothing in this Agreement shall prohibit or restrict you from: (i) making any disclosure of relevant and necessary information or documents in any action, investigation, or proceeding relating to this Agreement, or as required by law or legal process; or (ii) participating, cooperating, or testifying in any action, investigation, or proceeding with, or reporting possible violations or providing information to, any governmental agency or legislative body regarding this Agreement or the Company, including, but not limited to, the Company’s Legal Department, the Securities & Exchange Commission, and/or pursuant to the Dodd-Frank Act (including without limitations the whistleblower provisions thereof) or Sarbanes-Oxley Act; provided that, other than with respect to providing information to a governmental agency and to the extent permitted by law, upon receipt of any subpoena, court order or other legal process compelling the disclosure of any such information or documents, you will give the General Counsel of the Company prompt written notice so as to permit the Company to protect its interests in confidentiality to the fullest extent possible. Notwithstanding any provision of this Agreement to the contrary, the provisions of this Agreement are not intended to, and shall be interpreted in a manner that does not, limit or restrict you from exercising any legally protected whistleblower rights (including pursuant to Rule 21F under the Securities Exchange Act of 1934, as amended).

Upon termination of your employment or at any time requested by the Company, you will deliver promptly to the Company all memoranda, notes, records, reports and other documents (whether in paper or electronic form and all copies thereof) relating to the business of the Company and all other Company property which you obtained or developed while employed by, or otherwise serving or acting on behalf of, the Company and which you may then possess or have under your control, whether directly or indirectly.

Disclosure of Developments and Other Inventions

Without disclosing any third-party confidential information, Employee shall promptly disclose to Company all Developments and any inventions or developments that Employee believes do not constitute a Development, so that Company can make an independent assessment. Employee represents and warrants that if Employee developed, conceived or created any Development or other Intellectual Property prior to the date hereof that relates to Company’s Business, Employee has listed such Intellectual Property on Appendix 1 in a manner that does not violate any third-party rights or disclose any third party confidential information.

Ownership: All right, title and interest (including all Intellectual Property rights of any sort throughout the world) relating to any and all Developments (other than Employee Statutorily Exempt Developments) shall be the exclusive property of Company.

Assignment of Rights: In consideration of Employee’s employment by Company as set forth in the Employment Agreement, Employee hereby assigns to Company or its designee any and all right, title and/or interest (including all Intellectual Property rights of any sort throughout the world) in and to any Developments that Employee has or may in the future acquire with respect to any Developments, provided that this section shall not apply to any Employee Statutorily Exempt Developments.

Further Assistance and Assurances: Employee shall, both during and after his/her employment by Company, at the expense of Company, perform all lawful acts requested by, or on behalf of, Company to enable Company to obtain, perfect, sustain, and enforce its ownership interest in any Development(s) in accordance with this Section and to obtain and maintain patents, copyrights and other Intellectual Property rights for such Development(s) throughout the world.

Attorney-In-Fact: Employee hereby irrevocably designates and appoints Company as Employee’s agent and attorney-in-fact, coupled with an interest and with full power of substitution, to act for and on Employee’s behalf to execute and file any document and to do all other lawfully permitted acts to further the purposes of this Section with the same legal force and effect as if executed by Employee.

Acknowledgement of Employee Statutorily Exempt Developments: Employee acknowledges and agrees that, by executing this Agreement, nothing in this Agreement is intended to expand the scope of protection provided to Employee by Sections 2870 through 2872 of the California Labor Code or any other statute of like effect. Employee agrees to promptly advise the Company in writing of any developments that Employee believes may qualify under Sections 2870 through 2872 of the California Labor Code or any other statute of like effect.

Records: Employee agrees to keep and maintain adequate and current records (in the form of notes, sketches, drawings, and in any other form that may be required by the Company) of all Developments made, written, conceived and/or reduced to practice by Employee during the period of employment by Company, which records shall be available to and remain the sole property of the Company at all times.

Employee IP – Ownership and Restrictions; License: Any discovery, invention, improvement, computer program and related documentation or other work that (i) is created during the term of Employee’s employment with the Company and does not fall within the definition of the term “Development” as defined herein, (ii) is an Employee Statutorily Exempt Development, or (iii) was developed, created, or conceived prior to Employee’s employment with Company shall, as between Company and Employee, belong to Employee and shall not be used by Employee in his or her performance on behalf of the Company. Without limiting Company’s other rights and remedies, if, when acting within the scope of Employee’s employment or otherwise on behalf of Company, Employee uses or discloses Employee’s own or any third party’s confidential information or other Intellectual Property in violation of this Agreement (or if any Development cannot be fully made, used, reproduced, distributed and otherwise exploited without using or violating the foregoing), Employee hereby: (a) grants to Company a perpetual, irrevocable, worldwide, fully-paid, royalty-free, non-exclusive, sub-licensable right and license to use, exploit and exercise all such confidential information and/or Intellectual Property rights; and (b) warrants that he/she is entitled to grant such license to the extent the confidential information or Intellectual Property used by Employee in violation of this Section belongs to a third party.

Non-Competition: During your employment and for a period of one year thereafter (regardless of whether the termination of your employment is voluntary or involuntary), you will not directly or indirectly (i) engage in, carry on, or provide services (paid or unpaid) whether as a director, officer, partner, owner, employee, inventor, consultant, advisor, or agent, to any Competitive Business (as defined below) or (ii) hold any economic interest in any Competitive Business. However, notwithstanding the foregoing, you may own up to five percent (5%) of the outstanding securities of any publicly traded company that has an investment in a Competitive Business as long as you have no involvement whatsoever with such Competitive Business (including the formation, planning, or acquisition of, or investment in, any such Competitive Business).

It is not the Company’s intention to restrict or limit your activities following your termination of employment with the Company unless it is believed that there is a substantial possibility that your future services or activities in any of the lines of business in which the Company is engaged may be detrimental to the Company. So as to not unduly restrict your future employment, if you desire to enter into any employment arrangement or relationship with any potential Competitive Business within the one-year restricted period, please consult with the Executive Vice President, Chief Human Resources Officer of the Company to discuss your intended relationship with the entity. Due to the many different businesses in which the Company presently engages, or which in the future the Company may engage, we will discuss your desire to enter into a business or professional relationship with any manufacturer or firm which is a Competitive Business. The Company’s consent will not be unreasonably withheld.

Also, as a reminder, Arconic stock incentive awards and cash incentive awards continue to be subject to forfeiture, under the terms of applicable programs, to the extent you become associated with, employed by, render services to, or own any interest in any Competitive Business. In addition, stock incentive awards and cash incentive awards are subject to forfeiture or repayment to the extent you engage in conduct prohibited under the terms of applicable incentive programs or of the Company’s Compensation Recovery Policy (or any similar policies that may be adopted from time to time.

Non-Solicitation: During your employment and for a period of one year thereafter (regardless of whether the termination of your employment was voluntary or involuntary), you will not directly or indirectly (i) solicit, induce or attempt to solicit or induce any employee of the Company to leave the Company for any reason; (ii) hire or attempt to hire any employee of the Company; or (iii) solicit business from, or engage in business with, any customer or supplier of the Company that you met and/or dealt with

during your employment with the Company for any purpose. In the event that you become aware that any employee of the Company has been hired by any business or firm with which you are then affiliated, you will immediately notify the Executive Vice President, Chief Human Resources Officer to confirm your non-solicitation of said employee

You acknowledge and agree that given the nature of the Company’s business, which is conducted throughout the world, the unique and extraordinary services you will be providing to the Company and your position of confidence and trust with the Company, the scope and duration of the covenants included in this Agreement (the “Restrictive Covenants”) are reasonable and necessary to protect the legitimate business interests of the Company. You further acknowledge that you have received substantial consideration from the Company and that your general skills and abilities are such that you can be gainfully employed in noncompetitive employment, and that this Agreement will in no way prevent you from earning a living following your employment with the Company.

You also recognize and agree that any breach or threatened or anticipated breach of any part of these Restrictive Covenants will result in irreparable harm to the Company, and that the remedy at law for any such breach or threatened breach will be inadequate. Accordingly, in addition to any other legal or equitable remedies that may be available to the Company, you agree that the Company will be entitled to obtain an injunction, without posting a bond, to prevent any breach or threatened breach of any part of these Restrictive Covenants.

In the event that any court of competent jurisdiction finds that the limitations set forth in these Restrictive Covenants are overly broad with respect to duration, geographic scope or scope of prohibited activities, such court will have the authority to reduce the duration, area or activities of such provisions so as to be enforceable to the maximum extent compatible with applicable law, and such provisions will then be enforced as modified.

“Business” means areas of actual or demonstrably anticipated research and development conducted (or to be conducted) by, or for the benefit of, Company as well as all products or services sold by, on behalf of, or for the benefit of Company worldwide.

“Competitive Business” means any domestic or international business or firm (including any business in the process of being formed or planned) that is engaged, or has active plans to become engaged, in any line of business of the Company with which you have had direct functional accountability, or for which you provided leadership or support, during your last eighteen (18) months of employment with the Company.

“Confidential Information” includes, but is not limited to strategic plans, trade secrets, inventions, discoveries, technical and operating know-how, accounting information, product information, marketing and sales data, business strategies, customer information, and employee data of the Company that is proprietary in nature, and any similar information, data or materials of third parties that the Company has a duty to keep confidential.

“Developments” means all discoveries, inventions, innovations, improvements, computer programs and related documentation, and other works of authorship, mask works, designs, know-how, ideas and information made, written, conceived and/or reduced to practice, in whole or in part, (whether or not patentable or subject to other forms of protection) by Employee, individually or with any other person, during and after the period of Employee’s employment by Company that: (a) relate in any manner to the Business or activities of Company; and/or (b) are created: (i) at any time using Company resources, including, but not limited to, Company computers, cellphones, smartphones, etc.; (ii) during working hours; (iii) at a Company facility; (iv) by, or on behalf of, Company; and/or (v) using Confidential Information.

“Employee Statutorily Exempt Developments” means any Developments which qualify fully under the provisions of any applicable statute (including, e.g., Section 2870 of the California Labor Code) that prohibits the assignment to Company of Employee’s rights in any inventions developed entirely on Employee’s own time without using the Company’s equipment, supplies, facilities, resources, trade secrets or Confidential Information (i.e., excluding inventions that either (i) relate at the time of conception or reduction to practice of the invention to the Company’s Business, or actual or demonstrably anticipated research or development; or (ii) result from any work performed by Employee for the Company).

“Intellectual Property” means any intellectual and industrial property and all rights thereof, including, but not limited to, patents, utility models, semi-conductor topography rights; copyrights, mask works, authors’ rights, registered and unregistered trademarks, brands, domain names, trade secrets, know-how and other rights in information, drawings, logos, plans, database rights, technical notes, prototypes, processes, methods, algorithms, any technical-related documentation, any software, registered designs and other designs, in each case, whether registered or unregistered and including applications for registration, and all rights or forms of protection having equivalent or similar effect anywhere in the world.

This Agreement will be governed and interpreted in accordance with the laws of the State of Delaware without reference to its choice of law principles. Any action arising out of or related to this Agreement will be brought in the state or Federal courts located in Delaware, and you and the Company consent to the jurisdiction and venue of such courts.

No provision of this Agreement may be modified, waived, or discharged unless such waiver, modification or discharge is in writing. Any failure by you or the Company to enforce any of the provisions of this Agreement should not be construed to be a waiver of such provisions or any right to enforce each and every provision in the future. A waiver of any breach of this Agreement will not be construed as a waiver of any other or subsequent breach.

The Company has the right to assign its rights and obligations under this Agreement to any entity that acquires all or substantially all of the assets of the business for which you work and continues your employment. The rights and obligations of the Company under this Agreement will inure to the benefit and be binding upon the successors and assigns of the Company

In the event that any one or more of the provisions of this Agreement is held to be invalid, illegal or unenforceable, the validity, legality and enforceability of the remainder of this Agreement will not in any way be affected or impaired thereby.

This Agreement is the entire agreement between the parties with respect to the matters covered by this Agreement and it replaces all previous agreements, oral or written, between the parties regarding such matters. PROVISIONS OF THIS AGREEMENT MAY NOT BE WAIVED OR CHANGED EXCEPT BY A SUBSEQUENT AGREEMENT SIGNED BY YOU AND THE COMPANY.

If you agree to the terms of this Agreement, please sign on the line provided below and return two signed copies. A fully executed copy will be returned to you for your files after it is signed by the Company.

By: /s/ Timothy D. Myers            

Timothy D. Myers

AGREED TO AND ACCEPTED AS OF THIS 4th DAY OF AUGUST, 2022:

Diana Perreiah