Global Special Retention Award Agreement, effective December 7, 2023

Terms that are defined in the Plan have the same meanings in the Award Agreement.

•Involuntary Termination without Cause: An unvested Special Retention Award held by a Participant who is involuntarily terminated without Cause (as defined below) from employment with the Company or a Subsidiary during the vesting period is not forfeited in whole but only in part upon termination of employment. The portion of the Special Retention Award that is not forfeited vests on the original stated vesting date set forth in paragraph 2 and is calculated based on a proportionate share of the time during the vesting period that the Participant remained actively employed with the Company or a Subsidiary, with the remaining portion being automatically forfeited. The proportionate share is computed on the basis of the actual number of days actively employed after the date of grant over a total vesting period of three years of 360 days each (or a total vesting period of 1,080 days).

For example, a Participant who is involuntarily terminated without Cause from employment with the Company (or a Subsidiary) at the end of the first year of the three-year vesting period will receive one-third of the Shares upon vesting, with the remaining two-thirds of the Shares being automatically forfeited upon termination.

•Death or Disability: An unvested Special Retention Award held by a Participant, who dies while an employee or who is permanently and totally disabled while an employee, is not forfeited but vests on the original stated vesting date set forth in paragraph 2.

•Change in Control: A Special Retention Award vests if a Replacement Award is not provided following certain Change in Control events, as described in the Plan. If the Change in Control qualifies as a “change in control event” within the meaning of Treas. Reg. § 1.409A-3(i)(5), the vested Special Retention Award will be paid to the Participant within 30 days following the Change in Control. If the Change in Control does not so qualify, the vested Special Retention Award will be paid to the Participant on the original stated vesting date set forth in paragraph 2.

•Termination Following Change in Control: As further described in the Plan, if a Replacement Award is provided following a Change in Control, but within 24 months of such Change in Control the Participant’s employment is terminated without Cause (as defined in the Howmet Aerospace Inc. Change in Control Severance Plan) or by the Participant for Good Reason (as defined in the Howmet Aerospace Inc. Change in Control Severance Plan), the Replacement Award will vest and will be paid to the Participant on the original stated vesting date set forth in paragraph 2.

This Appendix A contains additional (or, if so indicated, different) terms and conditions that govern the Special Retention Awards if the Participant resides and/or works outside of the United States. Capitalized terms used but not defined herein shall have the same meanings assigned to them in the Plan and the Special Retention Award Agreement (the “Award Agreement”).

The Company will determine when the Participant is no longer providing services for purposes of the Special Retention Awards (including whether the Participant may still be considered to be providing services while on a leave of absence).

The Participant acknowledges that, regardless of any action taken by the Company or, if different, the Subsidiary that employs the Participant (the “Employer”), the ultimate liability for all income tax, social insurance, payroll tax, fringe benefits tax, payment on account or other tax-related items related to the Participant’s participation in the Plan and legally applicable to the Participant (“Tax- Related Items”) is and remains the Participant’s responsibility and may exceed the amount actually withheld by the Company or the Employer. The Participant further acknowledges that the Company and/or the Employer (a) make no representations or undertakings regarding the treatment of any Tax-Related Items in connection with any aspect of these Special Retention Awards, including, but not limited to, the grant, vesting or settlement of Special Retention Awards, the subsequent sale of Shares acquired pursuant to the Special Retention Award and the receipt of any dividends or dividend equivalents; and (b) do not commit to and are under no obligation to structure the terms of the Special Retention Awards or any aspect of the Special Retention Awards to reduce or eliminate the Participant’s liability for Tax-Related Items or achieve any particular tax result. The Participant shall not make any claim against the Company, the Employer or any other Subsidiary, or their respective board, officers or employees related to Tax-Related Items arising from this Award. Furthermore, if the Participant has become subject to tax in more than one jurisdiction, the Participant acknowledges that the Company and/or the Employer (or former employer, as applicable) may be required to withhold or account for Tax-Related Items in more than one jurisdiction.

In connection with any relevant taxable or tax withholding event, as applicable, the Participant will pay or make adequate arrangements satisfactory to the Company and/or the Employer to satisfy all Tax-Related Items. In this regard, the Participant authorizes the Company and/or the Employer, or their respective agents, at their discretion, to satisfy their withholding obligations with regard to all Tax-Related Items by one or a combination of the following: (i) requiring a cash payment from the Participant; (ii) withholding from the Participant’s wages or other cash compensation paid to the Participant by the Company and/or the Employer, (iii) withholding from the proceeds of the sale of Shares acquired pursuant to the Special Retention Awards, either through a voluntary sale or through a mandatory sale arranged by the Company (on the Participant’s behalf pursuant to this authorization without further consent); (iv) withholding from the Shares subject to Special Retention Awards; and/or (v) any other method of withholding determined by the Company and permitted by applicable law.

Depending on the withholding method, the Company may withhold or account for Tax-Related Items by considering applicable statutory withholding rates or other withholding rates, including maximum rates applicable in the Participant’s jurisdiction(s). In the event of overwithholding, the Participant may receive a refund of any over-withheld amount in cash (with no entitlement to the equivalent in Shares) or, if not refunded, the Participant may seek a refund from the local tax authorities. In the event of under-withholding, the Participant may be required to pay any additional Tax-Related Items directly to the applicable tax authority or to the Company and/or the Employer. If the obligation for Tax-Related Items is satisfied by withholding in Shares, the Participant is deemed, for tax purposes, to have been issued the full number of Shares subject to the vested Special Retention Awards, notwithstanding that a number of the Shares is held back solely for the purpose of paying the Tax-Related Items.

Finally, the Participant shall pay to the Company and/or the Employer any amount of Tax-Related Items that the Company and/or the Employer may be required to withhold or account for as a result of the Participant’s participation in the Plan that cannot be satisfied by the means previously described. The Company may refuse to issue or deliver the Shares or the proceeds of the sale of Shares if the Participant fails to comply with his or her obligations in connection with the Tax-Related Items.

C.Nature of Award. By accepting the Special Retention Awards, the Participant acknowledges, understands and agrees that:

a.the Plan is established voluntarily by the Company, is discretionary in nature and may be modified, amended, suspended, or terminated by the Company at any time, to the extent permitted by the Plan;

b.this Special Retention Award is exceptional, voluntary and occasional and does not create any contractual or other right to receive future Special Retention Awards, or benefits in lieu of Special Retention Awards, even if Special Retention Awards have been granted in the past;

c.all decisions with respect to future Special Retention Awards or other Awards, if any, will be at the sole discretion of the Company;

d.this Special Retention Award and the Participant’s participation in the Plan shall not create a right to, or be interpreted as forming or amending an employment or service contract with the Company and shall not interfere with the ability of the Employer to terminate the Participant’s employment contract (if any) at any time;

e.the Participant’s participation in the Plan is voluntary;

f.this Special Retention Award and the Shares acquired under the Plan, and the income from and value of same, are not intended to replace any pension rights or compensation;

g.this Special Retention Award and the Shares acquired under the Plan, and the income from and value of same, are not part of normal or expected compensation or salary for any purposes, including, without limitation, calculating any severance, resignation, termination, redundancy, dismissal, end-of-service payments, bonuses, long-service awards, pension or retirement or welfare benefits or similar payments;

h.the future value of the Shares subject to the Special Retention Award is unknown, indeterminable and cannot be predicted with certainty;

i.unless otherwise agreed with the Company, Special Retention Awards and the Shares acquired under the Plan, and the income from and value of same, are not granted as consideration for, or in connection with, the service the Participant may provide as a director of any Subsidiary;

j.no claim or entitlement to compensation or damages shall arise from forfeiture of any portion of this Special Retention Award resulting from termination of the Participant’s employment and/or service relationship (for any reason whatsoever and regardless of whether later found to be invalid or in breach of applicable laws in the jurisdiction where the Participant is employed or the terms of the Participant’s employment agreement, if any) and/or the application of any recoupment, recovery or clawback policy, including without limitation, in accordance with Section 15 of the Award Agreement;

k.unless otherwise provided in the Plan or by the Company in its discretion, this Special Retention Award and the benefits under the Plan evidenced by the Award Agreement do not create any entitlement to have this Special Retention Award or any such benefits transferred to, or assumed by, another company nor to be exchanged, cashed out or substituted for, in connection with any corporate transaction affecting the Shares; and

l.neither the Company, the Employer nor any other Subsidiary shall be liable for any foreign exchange rate fluctuation between the Participant’s local currency and the United States Dollar that may affect the value of the Special Retention Awards or of any amounts due to the Participant pursuant to the Special Retention Awards or the subsequent sale of any Shares acquired under the Plan.

D.Data Privacy. Howmet’s Employee Data Protection/Privacy Notice applies to the processing and transfer of the Participant’s personal data. The notice may be found here: Howmet Employee Data Protection/Privacy Notice. The Participant can also request a copy of the notice via email at privacy@howmet.com.

E.Language. The Participant acknowledges that he or she is sufficiently proficient in English, or has consulted with an advisor who is sufficiently proficient in English, so as to understand the terms and conditions of the Award Agreement. Furthermore, if the Participant has received the Award Agreement, or any other document related to this Special Retention Award and/or the Plan translated into a language other than English and if the meaning of the translated version is different than the English version, the English version will control, unless otherwise required by applicable law.

F.Insider Trading Restrictions/Market Abuse Laws. The Participant acknowledges that, depending on his or her country, the broker’s country, or the country in which the Shares are listed, the Participant may be subject to

insider trading restrictions and/or market abuse laws in applicable jurisdictions, which may affect his or her ability to accept, acquire, sell, or attempt to sell or otherwise dispose of Shares or rights to Shares (e.g., Special Retention Awards) or rights linked to the value of Shares, during such times as the Participant is considered to have “inside information” regarding the Company (as defined by applicable laws or regulations in the applicable jurisdictions, including the United States and the Participant’s country). Local insider trading laws and regulations may prohibit the cancellation or amendment of orders the Participant placed before possessing inside information. Furthermore, the Participant may be prohibited from (i) disclosing the inside information to any third party, including fellow employees (other than on a “need to know” basis) and (ii) “tipping” third parties or causing them to otherwise buy or sell securities. Any restrictions under these laws or regulations are separate from and in addition to any restrictions that may be imposed under any applicable Company insider trading policy. The Participant acknowledges that it is his or her responsibility to comply with any applicable restrictions, and the Participant should consult his or her personal advisor on this matter.

G.Foreign Asset/Account Reporting Requirements, Exchange Controls and Tax Requirements. The Participant acknowledges that his or her country may have certain foreign asset and/or account reporting requirements and exchange controls which may affect his or her ability to acquire or hold Shares under the Plan or cash received from participating in the Plan (including from any dividends received or sale proceeds arising from the sale of Shares) in a brokerage or bank account outside his or her country. The Participant understands that he or she may be required to report such accounts, assets or transactions to the tax or other authorities in his or her country. The Participant also may be required to repatriate sale proceeds or other funds received as a result of the Participant’s participation in the Plan to his or her country through a designated bank or broker and/or within a certain time after receipt. The Participant acknowledges that it is his or her responsibility to be compliant with all such requirements, and that the Participant should consult his or her personal legal and tax advisors, as applicable, to ensure the Participant’s compliance.

Capitalized terms used but not defined in this Appendix B have the meanings set forth in the Plan and the Special Retention Award Agreement (the “Award Agreement”).

This Appendix B includes additional terms and conditions that govern Special Retention Awards if the Participant resides and/or works in one of the countries listed below.

If the Participant is a citizen or resident of a country other than the country in which the Participant is currently residing and/or working (or is considered as such for local law purposes), or if the Participant transfers to another country after the grant of Special Retention Awards, the Committee shall, in its discretion, determine to what extent the additional terms and conditions contained herein shall be applicable to the Participant.

This Appendix B also includes information regarding securities, exchange controls, tax and certain other issues of which the Participant should be aware with respect to participation in the Plan. The information is based on the securities, exchange control, tax and other laws in effect in the respective countries as of January 2024. Such laws are often complex and change frequently. As a result, the Company strongly recommends that the Participant not rely on the information in this Appendix B as the only source of information relating to the consequences of participation in the Plan because the information may be out of date at the time the Participant sells Shares acquired under the Plan.

Finally, if the Participant is a citizen or resident of a country other than the country in which the Participant currently works and/or resides (or is considered as such for local law purposes), or if the Participant transfers to another country after the grant of the Special Retention Award, the information contained herein may not be applicable to the Participant in the same manner.

Securities Law Information. The grant of the Special Retention Award is being made under Division 1A, Part 7.12 of the Corporations Act 2001 (Cth). If the Participant offers Shares for sale to a person or entity resident in Australia, the Participant’s offer may be subject to disclosure requirements under Australian law. The Participant should obtain legal advice on applicable disclosure obligations prior to making any such offer.

Exchange Control Information. Exchange control reporting is required for cash transactions exceeding A$10,000 and for international fund transfers. If an Australian bank is assisting with the transaction, the bank will file the report on the Participant’s behalf. If there is no Australian bank involved in the transfer, the Participant will be responsible for filing the report.

Tax Information. The Plan is a plan to which Subdivision 83A-C of the Income Tax Assessment Act 1997 (Cth) applies (subject to conditions in the Act).

Exchange Control Information. If the Participant holds securities (including Shares acquired under the Plan) or cash (including proceeds from the sale of Shares) outside of Austria, the Participant may be subject to reporting obligations to the Austrian National Bank if certain thresholds are exceeded.

If the value of the Shares meets or exceeds €30,000,000 the Participant must report the securities held on a quarterly basis to the Austrian National Bank as of the last day of the quarter, on or before the 15th day of the month following the end of the calendar quarter. If the value of the Shares meets or exceeds €5,000,000 (but is less than €30,000,000), an annual reporting obligation applies and the report has to be filed as of December 31 on or before January 31 of the following year using the form P2.

If the Participant sells Shares, or receives any cash dividends or dividend equivalent payments, the Participant may have exchange control obligations if the Participant holds the cash proceeds outside Austria. If the transaction volume of all the Participant’s accounts abroad meets or exceeds €10,000,000, the Participant must report to the Austrian National Bank the movements and balances of all accounts on a monthly basis, as of the last day of the month, on or before the 15th day of the following month, on the prescribed form (Meldungen SI-Forderungen und/oder SI-Verpflichtungen).

These thresholds may be subject to change. The Participant should consult with Participant’s personal advisor(s) regarding any personal legal, regulatory or foreign exchange obligations the Participant may have in connection with the Participant’s participation in the Plan.

Foreign Asset/Account Reporting Information. If the Participant is a Belgian resident, the Participant is required to report any securities (e.g., Shares acquired under the Plan) or bank accounts opened and maintained outside of Belgium (e.g., brokerage accounts opened in connection with the Plan) on his or her annual tax return. In a separate report, the Participant is required to provide the National Bank of Belgium with certain details regarding such foreign accounts (including the account number, bank name and country in which any such account was opened). This report, as well as additional information on how to complete it, can be found on the website of the National Bank of Belgium, www.nbb.be, under Kredietcentrales / Centrales des crédits caption. The Participant should consult with his or her personal tax advisor to determine his or her personal reporting obligations.

Annual Securities Accounts Tax. If the value of securities held in a Belgian or foreign securities account exceeds €1,000,000, an “annual securities accounts tax” applies. Belgian residents should consult with their personal tax advisor regarding the new tax.

Stock Exchange Tax Information. A stock exchange tax applies to transactions executed by a Belgian resident through a non-Belgian financial intermediary, such as Merrill Lynch. The stock exchange tax likely will apply when Shares are sold. The Participant should consult his or her personal tax advisor for additional details on the Participant’s obligations with respect to the stock exchange tax.

Compliance with Law. By accepting the Special Retention Award, the Participant acknowledges that he or she agrees to comply with applicable Brazilian laws and to pay any and all applicable taxes associated with the vesting of Special Retention Awards, the sale of the Shares acquired under the Plan and the receipt of any dividends.

Acknowledgement of Nature of the Grant. This provision supplements paragraph C “Nature of Award” of Appendix A:

By accepting the Special Retention Awards, the Participant agrees that (i) he or she is making an investment decision, (ii) the Shares will be issued to the Participant only if the vesting conditions are met and any necessary services are rendered by the Participant over the vesting period, and (iii) the value of the underlying Shares is not fixed and may increase or decrease over the vesting period without compensation to the Participant.

Exchange Control Information. If the Participant is a resident of or domiciled in Brazil, he or she is generally required to submit an annual declaration of assets and rights held outside of Brazil to the Central Bank of Brazil if the aggregate value of the assets and rights is equal to or greater than US$100,000. If such amount exceeds US$100,000,000, the declaration must be submitted quarterly, in the month following the end of each quarter. Assets and rights that must be reported include Shares acquired under the Plan.

Tax on Financial Transactions (IOF). Repatriation of funds (e.g., sale proceeds) into Brazil and the conversion of USD into BRL associated with such fund transfers may be subject to the Tax on Financial Transactions. It is the Participant’s responsibility to comply with any applicable Tax on Financial Transactions arising from the Participant’s participation in the Plan. The Participant should consult with his or her personal tax advisor for additional details.

Award Settled Only in Shares. Notwithstanding any discretion in the Plan, the Special Retention Award shall be settled in Shares only. The Participant is not entitled to receive a cash payment pursuant to the Award.

Termination of Service. The following provision replaces paragraph A “Termination” of Appendix A:

For purposes of the Special Retention Award, and except as expressly required by applicable legislation, in the event of termination of the Participant’s employment relationship (regardless of the reason of termination, whether or not later found to be invalid or unlawful for any reason or in breach of applicable laws in the jurisdiction where the Participant is providing services or the terms of the Participant’s employment or service agreement, if any), except as otherwise expressly set forth in the Award Agreement, the Participant’s right to vest in the Special Retention Award under the Plan, if any, will terminate effective as of the earlier of (i) the date upon which the Participant is no longer actively employed or (ii) the date upon which the Participant receives written notice of termination from the Company or the Employer. The Company shall have the exclusive discretion to determine when the Participant is no longer actively employed or when the Participant has received notice of such termination for purposes of the Special Retention Award. Notwithstanding the foregoing, if applicable employment standards legislation explicitly requires continued entitlement to vesting during a statutory notice period, the Participant’s right to vest in the Special Retention Award under the Plan, if any, will terminate effective as of the last day of the Participant’s minimum statutory notice period, but the Participant will not earn or be entitled to pro-rated vesting if the vesting date falls after the end of the Participant’s statutory notice period, nor will the Participant be entitled to any compensation for lost vesting.

The Following Provisions Apply for Participants Resident in Quebec:

French Language Documents. A French translation of the Plan and the Award Agreement can be made available to the Participant as soon as reasonably practicable upon the Participant’s request. The Participant understands that,

from time to time, additional information related to the offering of the Plan might be provided in English and such information may not be immediately available in French. Notwithstanding anything to the contrary in the Award Agreement, and unless the Participant indicates otherwise, the French translation of the Plan and the Award Agreement will govern the Special Retention Award and the Participant’s participation in the Plan.

Data Privacy. The following provision supplements paragraph D “Data Privacy” of Appendix A:

The Participant hereby authorizes the Company and the Company’s representatives to discuss with and obtain all relevant information from all personnel, professional or not, involved in the administration and operation of the Plan. The Participant further authorizes the Company, the Employer and the administrator of the Plan to disclose and discuss the Plan with their advisors. The Participant acknowledges and agrees that the Participant’s personal information, including sensitive personal information, may be transferred or disclosed outside of the Province of Quebec, including to the United States. The Participant further authorizes the Company and the Employer to record such information and to keep such information in the Participant’s employee file. The Participant also acknowledges and authorizes the Company, the Employer and any Subsidiary or affiliate or other parties involved in the administration of the Plan to use technology for profiling purposes and to make automated decisions that may have an impact on the Participant or the administration of the Plan.

Securities Law Information. The Participant acknowledges that he or she is permitted to sell the Shares acquired under the Plan through the designated broker appointed by the Company, provided the sale of the Shares takes place outside of Canada through facilities of a stock exchange on which the Shares are listed (i.e., the NYSE).

Foreign Asset/Account Reporting Information. Canadian residents are required to report to the tax authorities certain foreign property (including the Special Retention Awards) on form T1135 (Foreign Income Verification Statement) if the total cost of the foreign property exceeds C$100,000 at any time in the year. The form must be filed by April 30 of the following year. Special Retention Awards must be reported—generally at a nil cost—if the C$100,000 cost threshold is exceeded because of other foreign property the Participant holds. If Shares are acquired, their cost generally is the adjusted cost base (“ACB”) of the Shares. The ACB would normally equal the fair market value of the Shares at vesting, but if the Participant owns other Shares, this ACB may have to be averaged with the ACB of the other Shares. The Participant should consult with his or her personal legal advisor to ensure compliance with applicable reporting obligations.

Shares Must Remain With Company’s Designated Broker. The Participant agrees to hold any Shares received upon settlement of the Special Retention Award with the Company’s designated broker until the Shares are sold. The limitation shall apply to all Shares issued to the Participant under the Plan, whether or not the Participant remains employed with the Company or its Subsidiaries.

Forced Sale of Shares. The Company has the discretion to arrange for the sale of the Shares issued upon settlement of the Special Retention Award, either immediately upon settlement or at any time thereafter. In any event, if the Participant’s employment is terminated, the Participant will be required to sell all Shares acquired upon settlement of the Special Retention Award within such time period as required by the Company in accordance with SAFE requirements. Any Shares remaining in the brokerage account at the end of this period shall be sold by the broker (on behalf of the Participant and the Participant hereby authorizes such sale). The Participant agrees to sign any additional agreements, forms and/or consents that reasonably may be requested by the Company (or the Company’s designated broker) to effectuate the sale of Shares (including, without limitation, as to the transfer of the sale proceeds and other exchange control matters noted below) and shall otherwise cooperate with the Company with respect to such matters. The Participant acknowledges that neither the Company nor the designated broker is under any obligation to arrange for the sale of Shares at any particular price (it being understood that the sale will occur in the market) and that broker’s fees and similar expenses may be incurred in any such sale. In any event, when the Shares are sold, the sale proceeds, less any tax withholding, any broker’s fees or commissions, and any similar expenses of the sale will be remitted to the Participant in accordance with applicable exchange control laws and regulations.

Exchange Control Restrictions. The Participant understands and agrees that the Participant will be required to immediately repatriate to China the proceeds from the sale of any Shares acquired under the Plan and any cash dividends paid on such Shares. The Participant further understands that such repatriation of proceeds may need to be effected through a special bank account established by the Company (or a Subsidiary), and the Participant hereby consents and agrees that any sale proceeds and cash dividends may be transferred to such special account by the Company (or a Subsidiary) on the Participant’s behalf prior to being delivered to the Participant and that no interest shall be paid with respect to funds held in such account.

The proceeds may be paid to the Participant in U.S. dollars or local currency at the Company’s discretion. If the proceeds are paid to the Participant in U.S. dollars, the Participant understands that a U.S. dollar bank account in China must be established and maintained so that the proceeds may be deposited into such account. If the proceeds are paid to the Participant in local currency, the Participant acknowledges that the Company (or its Subsidiaries) are under no obligation to secure any particular exchange conversion rate and that the Company (or its Subsidiaries) may face delays in converting the proceeds to local currency due to exchange control restrictions. The Participant agrees to bear any currency fluctuation risk between the time the Shares are sold and the net proceeds are converted into local currency and distributed to the Participant. The Participant further agrees to comply with any other requirements that may be imposed by the Company in the future in order to facilitate compliance with exchange control requirements in China.

Administration. The Company (or its Subsidiaries) shall not be liable for any costs, fees, lost interest or dividends or other losses that the Participant may incur or suffer resulting from the enforcement of the terms of this Appendix or otherwise from the Company’s operation and enforcement of the Plan, the Award Agreement, the Award in accordance with any applicable laws, rules, regulations and requirements.

Exchange Control Information. Chinese residents may be required to report to SAFE all details of their foreign financial assets and liabilities (including Shares acquired under the Plan), as well as details of any economic transactions conducted with non-Chinese residents.

Exchange Control Information. Upon request of the Czech National Bank (the “CNB”), the Participant may be required to report the following to the CNB: foreign direct investments, financial credits from abroad, investment in foreign securities and associated collection of payments (Shares and proceeds from the sale of Shares may be included in this reporting requirement). The Participant may need to report the following even in the absence of a request from the CNB: foreign direct investments with a value of CZK 2,500,000 or more in the aggregate or other foreign financial assets with a value of CZK 200,000,000 or more.

Because exchange control regulations change frequently and without notice, the Participant should consult his or her personal legal advisor prior to the sale of Shares to ensure compliance with current regulations. It is the Participant’s responsibility to comply with Czech exchange control laws, and neither the Company nor any Subsidiary will be liable for any resulting fines or penalties.

Language Consent. By accepting the grant of Special Retention Awards and the Award Agreement, which provides for the terms and conditions of the Participant’s Special Retention Awards, the Participant confirms having read and understood the documents relating to this Award (the Plan and the Award Agreement, including the Appendices) which were provided to the Participant in English. The Participant accepts the terms of those documents accordingly.

Tax Information. The Special Retention Awards are not intended to be French tax-qualified awards.

Foreign Asset/Account Reporting Information. French residents are required to report all foreign accounts (whether open, held, used and/or closed) to the French tax authorities when filing their annual tax returns. Further, French residents with foreign account balances exceeding prescribed amounts may have additional monthly reporting requirements. The Participant should consult with his or her personal advisor to ensure compliance with applicable reporting obligations. Failure to complete this reporting triggers penalties for the resident.

Exchange Control Information. Cross-border payments in excess of €12,500 must be reported to the German Federal Bank (Bundesbank). If the Participant makes or receives a payment in excess of this amount (including if the Participant acquires Shares or receives cash dividends with a value in excess of this amount under the Plan or sells Shares via a foreign broker, bank or service provider and receives proceeds in excess of this amount) and/or if the Company withholds or sells Shares with a value in excess of this amount to cover Tax-Related Items, the Participant must report the payment and/or the value of the Shares withheld or sold to Bundesbank. Such reports must be made either electronically using the “General Statistics Reporting Portal” (Allgemeine Meldeportal Statistik) available via Bundesbank’s website at www.bundesbank.de or via such other method (e.g., by email or telephone) as is permitted or required by Bundesbank. The Participant should consult his or her personal legal advisor to ensure compliance with applicable reporting requirements.

Foreign Asset/Account Reporting Information. If the Participant’s acquisition of Shares under the Plan leads to a so-called qualified participation at any point during the calendar year, the Participant will need to report the acquisition when he or she files a tax return for the relevant year. A qualified participation is attained only in the unlikely event that (i) the Participant owns at least 1% of the Company and the value of the Shares acquired exceeds €150,000, or (ii) the Participant holds Shares exceeding 10% of the Company’s total common stock.

Securities Law Information. Warning: The contents of this document have not been reviewed by any regulatory authority in Hong Kong. The Participant is advised to exercise caution in relation to the offer. The Special Retention Award and Shares issued at vesting do not constitute a public offering of securities under Hong Kong law and are available only to employees of the Company, its Subsidiary or affiliates. The Award Agreement, including this Appendix B, the Plan and other incidental communication materials (i) have not been prepared in accordance with and are not intended to constitute a “prospectus” for a public offering of securities under the applicable securities legislation in Hong Kong, and (ii) are intended only for the personal use of each eligible employee of the Employer, the Company or any Subsidiary or affiliate and may not be distributed to any other person. If the Participant is in any doubt about any of the contents of the Award Agreement, including this Appendix B, the Plan or any other incidental communication materials, he or she should obtain independent professional advice.

Form of Settlement. Special Retention Awards granted to employees resident in Hong Kong shall be paid in Shares only. In no event shall any of such Special Retention Awards be paid in cash, notwithstanding any discretion contained in the Plan to the contrary.

Settlement of Special Retention Award and Sale of Shares. This provision supplements paragraph 4 of the Award Agreement:

Shares received under the Plan are accepted as a personal investment. In the event the Participant’s Special Retention Award vests and Shares are issued to the Participant within six months of the grant date, the Participant agrees that he or she will not offer to the public or otherwise dispose of any Shares acquired prior to the six-month anniversary of the grant date.

There are no country-specific provisions.

Payment after Vesting. The following provision supplements paragraph 4 of the Award Agreement:

Due to regulatory requirements in India, the Company has the discretion to arrange for the sale of the Shares issued upon settlement of the Special Retention Awards, either immediately upon settlement or at any time thereafter. In this regard, the Participant agrees that the Company is authorized to instruct its designated broker to assist with any such mandatory sale of Shares (on Participant’s behalf pursuant to this authorization), and the Participant expressly authorizes the designated broker to complete the sale of such Shares. The Participant agrees to sign any additional agreements, forms and/or consents that reasonably may be requested by the Company (or the Company’s designated broker) to effectuate the sale of Shares (including, without limitation, as to the transfer of the sale proceeds and other exchange control matters noted below) and shall otherwise cooperate with the Company with respect to such matters. The Participant acknowledges that neither the Company nor the designated broker is under any obligation to arrange for the sale of Shares at any particular price (it being understood that the sale will occur in the market) and that broker’s fees and similar expenses may be incurred in any such sale. In any event, when the Shares are sold, the sale proceeds, less any tax withholding, any broker’s fees or commissions, and any similar expenses of the sale will be remitted to the Participant in accordance with applicable exchange control laws and regulations. The Participant agrees to bear any currency fluctuation risk between the time the Shares are sold and the net proceeds are converted into local currency and distributed to the Participant.

Exchange Control Information. The Participant understands that he or she must repatriate any proceeds from the sale of Shares acquired under the Plan or from the receipt of dividends paid on such Shares to India and convert the proceeds into local currency within such time as prescribed under applicable Indian exchange control laws, which may be amended from time to time. The Participant must obtain a foreign inward remittance certificate (“FIRC”) from the bank where the Participant deposits the foreign currency and must maintain the FIRC as evidence of the repatriation of funds in the event the Reserve Bank of India or the Employer requests proof of repatriation. It is the Participant’s responsibility to comply with these requirements. Neither the Company nor the Employer will be liable for any fines or penalties resulting from the Participant’s failure to comply with any applicable laws. The Participant may be required to provide information regarding funds received from participation in the Plan to the Company and/or the Employer to enable them to comply with their filing requirements under exchange control laws in India. The Participant should consult his or her own legal advisor about the applicable requirements.

Foreign Asset/Account Reporting Information. The Participant is required to declare any foreign bank accounts and any foreign financial assets (including Shares held outside India) in the Participant’s annual tax return. The Participant is responsible for complying with this reporting obligation and should confer with his or her personal tax advisor in this regard as significant penalties may apply in the case of non-compliance with foreign asset/account reporting requirements and because such requirements may change.

The Participant further acknowledges that he or she has read and specifically and expressly approves the following paragraphs of the Award Agreement: paragraph 27 (“Governing Law and Venue”) of the Award Agreement; paragraph B (“Responsibility for Taxes”), paragraph C (“Nature of Award”), paragraph D (“Data Privacy”), and paragraph E (“Language”) of Appendix A to the Award Agreement.

Foreign Asset/Account Reporting Information. If the Participant is an Italian resident and, during any fiscal year, holds investments or financial assets outside of Italy (e.g., cash, Shares) which may generate income taxable in Italy (or if the Participant is the beneficial owner of such an investment or asset even if the Participant does not directly hold the investment or asset), the Participant is required to report such investments or assets on his or her annual tax return for such fiscal year (on UNICO Form, RW Schedule, or on a special form if the Participant is not required to file a tax return).

Foreign Asset/Account Reporting Information. The Participant will be required to report details of any assets held outside of Japan as of December 31 (including any Shares acquired under the Plan) to the extent such assets have a total net fair market value exceeding ¥50,000,000. Such report will be due by March 15 of the following year. The Participant should consult with his or her personal tax advisor as to whether the reporting obligation applies to the Participant and whether the Participant will be required to report details of any outstanding Special Retention Awards, Shares or cash held by the Participant in the report.

Domestic Broker Requirement. Korean residents are not permitted to sell foreign securities (including Shares) through non-Korean brokers (such as Merrill Lynch) or deposit funds resulting from the sale of Shares in an account with an overseas financial institution. If the Participant wishes to sell Shares acquired under the Plan, the Participant may be required to transfer the Shares to a domestic investment broker in Korea and to effect the sale through such broker. The Participant is solely responsible for engaging the domestic broker in Korea, and non-compliance with the requirement to sell Shares through a domestic broker can result in significant penalties.

However, on December 29, 2023, the Korean Financial Services Commission issued an advance notice of legislative action which, if adopted as drafted, would allow Korean residents to dispose of overseas-listed securities (including Shares acquired under the Plan) without using a Korean licensed broker and deposit proceeds from the sale with an overseas financial institution. Until the legislation is adopted, the restrictions described above remain applicable to foreign-listed securities, including the Shares acquired under the Plan. The Participant should consult his or her personal advisor regarding any regulatory obligations in connection with the Participant’s participation in the Plan.

Foreign Asset/Account Reporting Information. If the Participant is a Korean resident, the Participant must declare all of his or her foreign financial accounts (including any brokerage account) to the Korean tax authority and file a report with respect to such accounts if the value of such accounts exceeds KRW 500 million (or an equivalent amount in foreign currency). The Participant should consult with his or her personal tax advisor as to whether the reporting obligation applies.

Policy Statement. The Special Retention Award is a unilateral and discretionary award and, therefore, the Company reserves the absolute right to amend it and discontinue it at any time without any liability.

The Company, with offices at 201 Isabella Street, Suite 200, Pittsburgh, Pennsylvania ###-###-####, United States of America, is solely responsible for the administration of the Plan, and participation in the Plan and the Award of the Special Retention Award does not, in any way, establish an employment relationship between the Participant and the Company since the Participant is participating in the Plan on a wholly commercial basis and the Participant’s sole employer is one of the following companies: COMERCIALIZADORA ALUMAX EXTRUSIONS MEXICO S.A. DE C.V., Howmet Fastening Systems Mexico II S de RL de CV, Howmet Mexico Casting Center Services S de RL de CV, HOWMET SERVICES DE MEXICO, S. DE R.L. DE C.V. or Howmet Wheel Services Mexico S de RL de CV, a Mexican Subsidiary. Based on the foregoing, the Participant expressly recognizes that the Plan and the

benefits that he or she may derive from participation in the Plan do not establish any rights between the Participant and the Employer, and do not form part of the conditions of the Participant’s employment or service and/or benefits provided by the Employer and any modification of the Plan or its termination shall not constitute a change or impairment of the terms and conditions of the Participant’s employment

Plan Document Acknowledgment. By accepting the Special Retention Awards, the Participant acknowledges that he or she has received copies of the Plan, has reviewed the Plan and the Award Agreement in their entirety, and fully understands and accepts all provisions of the Plan and the Award Agreement, including the Appendices.

In addition, the Participant expressly approves that: (i) participation in the Plan does not constitute an acquired right; (ii) the Plan and participation in the Plan is offered by the Company on a wholly discretionary basis; (iii) participation in the Plan is voluntary; and (iv) neither the Company nor any Subsidiary is responsible for any decrease in the value of the Shares acquired upon vesting of the Special Retention Awards.

Finally, the Participant hereby declares that he or she does not reserve any action or right to bring any claim against the Company for any compensation or damages as a result of his or her participation in the Plan and therefore grant a full and broad release to the Employer, the Company and its other Subsidiaries with respect to any claim that may arise under the Plan.

La Compañía, con oficinas registradas ubicadas en 201 Isabella Street, Suite 200, Pittsburgh, Pennsylvania ###-###-####, United States of America, es únicamente responsable de la administración del Plan, y la participación en el Plan y el Otorgamiento de Unidades de Acciones Restringidas no establecen, de forma alguna, una relación de trabajo entre el Participante y la Compañía, ya que el Participante está participando en el Plan sobre una base comercial y el único patrón es COMERCIALIZADORA ALUMAX EXTRUSIONS MEXICO S.A. DE C.V., Howmet Fastening Systems Mexico II S de RL de CV, Howmet Mexico Casting Center Services S de RL de CV, HOWMET SERVICES DE MEXICO, S. DE R.L. DE C.V. o Howmet Wheel Services Mexico S de RL de CV, una Afiliada Mexicana. Derivado de lo anterior, el Participante expresamente reconoce que el Plan y los beneficios que el Participante obtenga por la participación en el Plan no establecen derecho alguno entre el Participante y el Patrón, el Empleador, y no forman parte de las condiciones de los Servicios del Participante y/o las prestaciones otorgadas por el Empleador y cualquier modificación del Plan o su terminación no constituyen un cambio o impedimento de los términos y condiciones del Servicio del Participante.

Securities Law Information. The Special Retention Award and any Shares acquired under the Plan have not been registered with the National Register of Securities maintained by the Mexican National Banking and Securities Commission and cannot be offered or sold publicly in Mexico. In addition, the Plan, the Agreement and any other document relating to the Special Retention Award may not be publicly distributed in Mexico. These materials are addressed to the Participant because of the Participant’s existing relationship with the Company and its Subsidiaries, and these materials should not be reproduced or copied in any form. The offer contained in these materials does not constitute a public offering of securities, but rather constitutes a private placement of securities addressed specifically to individuals who are present employees of the Company or its Subsidiaries made in accordance with

the provisions of the Mexican Securities Market Law, and any rights under such offering shall not be assigned or transferred.

Settlement. The following provision replaces paragraph 4 of the Award Agreement:

Due to exchange control restrictions in Morocco, the Company will settle the Special Retention Award by delivering to the Participant, through local payroll, the cash equivalent of Shares upon vesting of the Special Retention Award. The cash payment will equal the number of Shares covered by the vested Special Retention Awards multiplied by the value of one Share on the vesting date, subject to the satisfaction of any applicable withholding obligations for Tax-Related Items. References in this Award Agreement to Shares issuable in connection with the Special Retention Award will include the issuance of its cash equivalent pursuant to this provision.

There are no country-specific provisions.

Exchange Control Information. The Participant acknowledges that any transfer of funds in excess of €15,000 (or PLN 15,000 if the transfer of funds is connected with the business activity of an entrepreneur) into or out of Poland must be affected through a bank account in Poland. The Participant understands that he or she is required to store all documents connected with any foreign exchange transactions the Participant engages in for a period of five years, as measured from the end of the year in which such transaction occurred.

Foreign Asset/Account Reporting Information. If the Participant maintains bank or brokerage accounts holding cash and foreign securities (including Shares) outside of Poland, he or she will be required file quarterly reports with the National Bank of Poland on transactions and balances in such accounts if the value of such cash and securities exceeds PLN 7,000,000. If required, such reports must be filed on special forms available on the website of the National Bank of Poland. The Participant should consult with his or her personal legal advisor to determine whether he or she will be required to submit reports to the National Bank of Poland.

Sale Restriction. The Participant agrees that any Shares acquired pursuant to the Special Retention Award will not be offered for sale in Singapore prior to the six-month anniversary of the grant date unless such sale or offer is made pursuant to the exemptions under Part XIII Division (1) Subdivision (4) (other than section 280) of the Securities and Futures Act (Chapter 289, 2006 Ed.) (“SFA”) or pursuant to, and in accordance with the conditions of, any applicable provisions of the SFA.

Securities Law Information. The grant of the Special Retention Award is being made to the Participant in reliance on the “Qualifying Person” exemption under section 273(1)(f) of the SFA under which it is exempt from the prospectus and registration requirements and is not made with a view to the underlying Shares being subsequently offered for sale to any other party. The Plan has not been and will not be lodged or registered as a prospectus with the Monetary Authority of Singapore.

Director Notification Obligation. If the Participant is a director, associate director or shadow director of the Company’s Singapore Subsidiary or affiliate, the Participant is subject to certain notification requirements under the Singapore Companies Act. Among these requirements is an obligation to notify the Company’s Singapore Subsidiary or affiliate in writing when the Participant receives an interest (e.g., a grant of a Special Retention Award, the acquisition of Shares under the Plan, etc.) in the Company or any Subsidiary or affiliate. In addition, the Participant must notify the Company’s Singapore Subsidiary or affiliate when the Participant sells Shares or shares of the Company or its Subsidiary or affiliate (including when the Participant sells Shares issued upon vesting and settlement of the Special Retention Award). These notifications must be made within two business days of (i) acquiring or disposing of any interest in the Company or any Subsidiary or affiliate or (ii) any change in a

previously-disclosed interest (e.g., upon vesting of the Special Retention Award or when Shares acquired under the Plan are subsequently sold). In addition, a notification of the Participant’s interests in the Company or any Subsidiary or affiliate must be made within two business days of becoming a director, associate director or shadow director.

Responsibility for Taxes. The following supplements paragraph B “Responsibility for Taxes” of Appendix A:

By accepting the grant of the Special Retention Award, the Participant agrees that, immediately upon vesting and settlement of the Special Retention Award, the Participant will notify the Employer of the amount of any gain realized. If the Participant fails to advise the Employer of the gain realized upon vesting and settlement, the Participant may be liable for a fine. The Participant will be solely responsible for paying any difference between the actual tax liability and the amount withheld by the Employer.

Exchange Control Information. It is the Participant’s responsibility to comply with South African exchange control laws and neither the Company nor the Employer will be liable for any fines or penalties arising from Participant’s failure to comply with applicable laws. Because the exchange control regulations change frequently and without notice, the Participant should consult his or her personal legal advisor prior to the acquisition or sale of Shares to ensure compliance with current regulations.

Securities Law Acknowledgement. In compliance with South African Securities Law, the Participant acknowledges that the Participant has been notified that the documents related to the Plan are available for the Participant’s review on the Company’s public site or intranet site, as applicable.

No Entitlement for Claims or Compensation. The following provisions supplement paragraph A “Termination” of Appendix A:

By accepting the Special Retention Award, the Participant consents to participation in the Plan and acknowledges that Participant has received a copy of the Plan acknowledges that the Participant has read and specifically accepts the vesting and termination conditions in the Award Agreement.

The Participant understands and agrees that, as a condition of the grant of the Special Retention Award, if the Participant’s employment terminates, unless otherwise provided in the Award Agreement or by the Company, that the Participant will not be entitled to continue vesting in any Special Retention Awards upon cessation of the Participant’s employment or service and any unvested Special Retention Awards shall be forfeited without entitlement to the underlying Shares or to any amount as indemnification in the event of a termination, including, but not limited to: resignation, disciplinary dismissal adjudged to be with cause, disciplinary dismissal adjudged or recognized to be without cause, individual or collective layoff on objective grounds, whether adjudged to be with cause or adjudged or recognized to be without cause, material modification of the terms of employment under Article 41 of the Workers’ Statute, relocation under Article 40 of the Workers’ Statute, Article 50 of the Workers’ Statute, unilateral withdrawal by the Employer, and under Article 10.3 of Royal Decree 1382/1985.

The Participant understands that the Company has unilaterally, gratuitously and in its sole discretion decided to grant Special Retention Awards under the Plan to individuals who may be Employees of the Company or a Subsidiary. The decision is limited and entered into based upon the express assumption and condition that any Special Retention Awards will not economically or otherwise bind the Company or any Subsidiary, including the Employer, on an ongoing basis, other than as expressly set forth in the Award Agreement.

Consequently, the Participant understands that the Special Retention Awards are granted on the assumption and condition that the Special Retention Awards shall not become part of any employment or service agreement (whether with the Company or any Subsidiary, including the Employer) and shall not be considered a mandatory benefit, salary for any purpose (including severance compensation) or any other right whatsoever. Furthermore, the Participant understands and freely accepts that there is no guarantee that any benefit whatsoever shall arise from the grant of Special Retention Awards, which is gratuitous and discretionary, since the future value of the Special Retention Awards and the underlying Shares is unknown and unpredictable. The Participant also understands that

the grant of Special Retention Awards would not be made but for the assumptions and conditions set forth hereinabove; thus, the Participant understands, acknowledges and freely accepts that, should any or all of the assumptions be mistaken or any of the conditions not be met for any reason, the Special Retention Award and any right to the underlying Shares shall be null and void.

Securities Law Information. A Special Retention Award is not considered to be a security under Spanish law. No “offer of securities to the public”, as defined under Spanish law, has taken place or will take place in the Spanish territory with respect to the Special Retention Award. No public offering prospectus has been nor will be registered with the Comisión Nacional del Mercado de Valores (Spanish Securities Exchange Commission) (“CNMV”). Neither the Plan nor the Award Agreement constitute a public offering prospectus and they have not been, nor will they be, registered with the CNMV.

Exchange Control Information. The Participant must declare the acquisition of the Shares to the Dirección General de Comercio e Inversiones (the Bureau for Commerce and Investments, the “DGCI”) of the Ministry of Economy, Industry and Competitiveness for statistical purposes. The Participant must also declare ownership of any Shares with the Directorate of Foreign Transactions each January while the Shares are owned. In addition, if the Participant wishes to import the ownership title of the Shares (i.e., share certificates) into Spain, the Participant must declare the importation of such securities to the DGCI. The sale of the Shares must also be declared to the DGCI by means of a form D-6 filed in January. The form D-6, generally, must be filed within one month after the sale if the Participant owns more than 10% of the share capital of the Company or the Participant’s investment exceeds €1,502,530.

In addition, the Participant may be required to electronically declare to the Bank of Spain any foreign accounts (including brokerage accounts held abroad), any foreign instruments (including Shares acquired under the Plan), and any transactions with non-Spanish residents (including any payments of Shares made pursuant to the Plan), depending on the balances in such accounts together with the value of such instruments as of December 31 of the relevant year, or the volume of transactions with non-Spanish residents during the relevant year.

Foreign Asset/Account Reporting Information. To the extent the Participant holds rights or assets (e.g., cash or the Shares held in a bank or brokerage account) outside of Spain with a value in excess of €50,000 per type of right or asset as of December 31 each year (or at any time during the year in which the Participant sells or disposes of such right or asset), the Participant is required to report information on such rights and assets on the Participant’s tax return for such year. After such rights or assets are initially reported, the reporting obligation will apply for subsequent years only if the value of any previously-reported rights or assets increases by more than €20,000 per type of right or asset as of each subsequent December 31, or if the Participant sells Shares or cancel bank accounts that were previously reported. Failure to comply with this reporting requirement may result in penalties.

Securities Law Information. Because the offer of the Special Retention Award is considered a private offering in Switzerland; it is not subject to registration in Switzerland. Neither this document nor any other materials relating to the Special Retention Award (i) constitute a prospectus according to articles 35 et seq. of the Swiss Federal Act on Financial Services (“FinSA”), (ii) may be publicly distributed nor otherwise made publicly available in Switzerland to any person other than an Employee or (iii) has been or will be filed with, approved or supervised by any Swiss reviewing body according to article 51 FinSA or any Swiss regulatory authority, including the Swiss Financial Market Supervisory Authority (“FINMA”).

Responsibility for Taxes. The following supplements paragraph B “Responsibility for Taxes” of Appendix A:

Without limitation to paragraph B “Responsibility for Taxes” of Appendix A, the Participant agrees that the Participant is liable for all Tax-Related Items and hereby covenants to pay all such Tax-Related Items as and when requested by the Company or the Employer or by HM Revenue & Customs (“HMRC”) (or any other tax authority or any other relevant authority). The Participant also agrees to indemnify and keep indemnified the Company and the

Employer against any Tax-Related Items that they are required to pay or withhold or have paid or will have to pay to HMRC (or any other tax authority or any other relevant authority) on the Participant’s behalf.

Notwithstanding the foregoing, if the Participant is a Director or executive officer of the Company (within the meaning of Section 13(k) of the U.S. Securities Exchange Act of 1934), the Participant may not be able to indemnify the Company or the Employer for the amount of any income tax not collected from or paid by the Participant, as it may be considered a loan. In this case, the amount of any uncollected income tax may constitute a benefit to the Participant on which additional income tax and employee National Insurance contributions (“NICs”) may be payable. The Participant agrees to report and pay any income tax due on this additional benefit directly to HMRC under the self-assessment regime and to pay the Employer for the value of the employee NICs due on this additional benefit, which the Company or the Employer may recover from the Participant by any of the means referred to in the Award Agreement, including the Appendices.