# EDGAR Filing Document

**Accession Number:** 0000004281
**File Stem:** 0000004281-25-000026
**Filing Date:** 2025-6
**Character Count:** 58253
**Document Hash:** be11da3349e7ea94f1b555186c5ca456
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000004281-25-000026.hdr.sgml**: 20250613

**ACCESSION NUMBER**: 0000004281-25-000026

**CONFORMED SUBMISSION TYPE**: 11-K

**PUBLIC DOCUMENT COUNT**: 3

**CONFORMED PERIOD OF REPORT**: 20241231

**FILED AS OF DATE**: 20250613

**DATE AS OF CHANGE**: 20250612

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Howmet Aerospace Inc.
- **CENTRAL INDEX KEY:** 0000004281
- **STANDARD INDUSTRIAL CLASSIFICATION:** ROLLING DRAWING & EXTRUDING OF NONFERROUS METALS [3350]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 250317820
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 11-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-03610
- **FILM NUMBER:** 251044047

**BUSINESS ADDRESS:**
- **STREET 1:** 201 ISABELLA STREET
- **STREET 2:** SUITE 200
- **CITY:** PITTSBURGH
- **STATE:** PA
- **ZIP:** 15212-5872
- **BUSINESS PHONE:** (412) 553-1940

**MAIL ADDRESS:**
- **STREET 1:** 201 ISABELLA STREET
- **CITY:** PITTSBURGH
- **STATE:** PA
- **ZIP:** 15212-5872

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Arconic Inc.
- **DATE OF NAME CHANGE:** 20161101

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** ALCOA INC.
- **DATE OF NAME CHANGE:** 20141003

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** ALCOA INC
- **DATE OF NAME CHANGE:** 19990105

**UNITED STATES** 

**SECURITIES AND EXCHANGE COMMISSION** 

**Washington, D. C. 20549**

**FORM 11-K** <br>

**FOR ANNUAL REPORTS OF EMPLOYEE STOCK** 

**PURCHASE, SAVINGS AND SIMILAR PLANS** 

**PURSUANT TO SECTION 15(d) OF THE** 

**SECURITIES EXCHANGE ACT OF 1934** 

☒ **ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934**

**For the fiscal year ended December 31, 2024**

**OR** 

☐ **TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934**

**For the transition period from <u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u> to <u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u>** 

**Commission file number 001-03610** 

A. Full title of the plan and the address of the plan, if different from that of the issuer named below:

**HOWMET AEROSPACE HOURLY RETIREMENT SAVINGS PLAN** 

**HOWMET AEROSPACE SALARIED RETIREMENT SAVINGS PLAN** 

B. Name of issuer of the securities held pursuant to the plan and the address of its principal executive office:

**Howmet Aerospace Inc.** 

**201 Isabella Street, Suite 200, Pittsburgh, Pennsylvania 15212-5872** 

------

**Employees' Retirement Savings Plans of Howmet Aerospace Inc. and** 

**Subsidiary Companies** 

**Index** 

---

| | |
|:---|:---|
| | **Page** |
| **Employees' Retirement Savings Plans of Howmet Aerospace Inc. and Subsidiary Companies** | |
| Howmet Aerospace Hourly Retirement Savings Plan, and |  |
| Howmet Aerospace Salaried Retirement Savings Plan |  |
| **<u>[Report of Independent Registered Public Accounting Firm](#i6dd5e15446374849bff2d3d585143051_7)</u>** | <u>[1](#i6dd5e15446374849bff2d3d585143051_7)</u> |
| **Financial Statements** |  |
| <u>[Statements of Individual Plan Net Assets Available for Benefits December 31, 202](#i6dd5e15446374849bff2d3d585143051_10)4</u> | <u>[2](#i6dd5e15446374849bff2d3d585143051_10)</u> |
| <u>[Statements of Individual Plan Net Assets Available for Benefits December 31, 202](#i6dd5e15446374849bff2d3d585143051_13)3</u> | <u>[3](#i6dd5e15446374849bff2d3d585143051_13)</u> |
| <u>[Statements of Changes in Individual Plan Net Assets Available for Benefits for the Year Ended December 31, 202](#i6dd5e15446374849bff2d3d585143051_16)4</u> | <u>[4](#i6dd5e15446374849bff2d3d585143051_16)</u> |
| <u>[Notes to Financial Statements December 31, 202](#i6dd5e15446374849bff2d3d585143051_19)[4](#i6dd5e15446374849bff2d3d585143051_19)[and 202](#i6dd5e15446374849bff2d3d585143051_19)3</u> | <u>[5](#i6dd5e15446374849bff2d3d585143051_19)</u> |
| **Supplemental Schedules** |  |
| <u>[Howmet Aerospace Hourly Retirement Savings Plan Schedule H, Line 4(i) – Schedule of Assets (Held at End of Year) December 31, 202](#i6dd5e15446374849bff2d3d585143051_43)4</u> | <u>[14](#i6dd5e15446374849bff2d3d585143051_43)</u> |
| <u>[Howmet Aerospace Salaried Retirement Savings Plan Schedule](#i6dd5e15446374849bff2d3d585143051_46)[H, Line 4(i) – Schedule of Assets (Held at End of Year) December 31, 202](#i6dd5e15446374849bff2d3d585143051_46)4</u> | <u>[15](#i6dd5e15446374849bff2d3d585143051_46)</u> |
| <u>[Howmet Aerospace Hourly Retirement Savings Plan Schedule H, Line 4(a)](#i6dd5e15446374849bff2d3d585143051_308)[–](#i6dd5e15446374849bff2d3d585143051_308)[Schedule of Delinquent Participant Contributions](#i6dd5e15446374849bff2d3d585143051_308)[Decem](#i6dd5e15446374849bff2d3d585143051_308)[ber 31, 2024](#i6dd5e15446374849bff2d3d585143051_308)</u> | <u>[1](#i6dd5e15446374849bff2d3d585143051_308)[6](#i6dd5e15446374849bff2d3d585143051_308)</u> |
| <u>[Howmet Aerospace Salaried Retirement Savings Plan Schedule H, Line 4(a)](#i6dd5e15446374849bff2d3d585143051_303)[–](#i6dd5e15446374849bff2d3d585143051_303)[Schedule of Delinquent Participant Contributions](#i6dd5e15446374849bff2d3d585143051_303)[December 3](#i6dd5e15446374849bff2d3d585143051_303)[1](#i6dd5e15446374849bff2d3d585143051_303)[, 2024](#i6dd5e15446374849bff2d3d585143051_303)</u> | <u>[1](#i6dd5e15446374849bff2d3d585143051_303)[7](#i6dd5e15446374849bff2d3d585143051_303)</u> |
| <u>[Exhibit Index](#i6dd5e15446374849bff2d3d585143051_49)</u> | <u>[18](#i6dd5e15446374849bff2d3d585143051_49)</u> |
| <u>[Signatures](#i6dd5e15446374849bff2d3d585143051_52)</u> | <u>[19](#i6dd5e15446374849bff2d3d585143051_52)</u> |

---

Note: Other schedules required by Section 2520.103-10 of the Department of Labor's Rules and Regulations for Reporting and Disclosure under ERISA have been omitted as they are not applicable.

------

![g154412dsp3a.jpg](g154412dsp3a.jpg)

**Report of Independent Registered Public Accounting Firm** 

To the Administrator and Plan Participants of

Howmet Aerospace Hourly Retirement Savings Plan, and

Howmet Aerospace Salaried Retirement Savings Plan.

***Opinions on the Individual Financial Statements***

We have audited the accompanying statements of individual plan net assets available for benefits of the Howmet Aerospace Hourly Retirement Savings Plan and the Howmet Aerospace Salaried Retirement Savings Plan (hereafter collectively referred to as the "Plans") as of December 31, 2024 and 2023 and the related statements of changes in individual plan net assets available for benefits for the year ended December 31, 2024, including the related notes (collectively referred to as the "financial statements"). In our opinion, the financial statements present fairly, in all material respects, the net assets available for benefits of each of the Plans as of December 31, 2024, and 2023, and the changes in each of their net assets available for benefits for the year ended December 31, 2024 in conformity with accounting principles generally accepted in the United States of America.

***Basis for Opinions***

These individual plan financial statements are the responsibility of the Plans' management. Our responsibility is to express an opinion on the Plan's financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Plan in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits of these individual plan financial statements in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the individual plan financial statements are free of material misstatement, whether due to error or fraud.

Our audits included performing procedures to assess the risks of material misstatement of the individual plan financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the individual plan financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the individual plan financial statements. We believe that our audits provide a reasonable basis for our opinion.

***Supplemental Information***

The supplemental Schedule H, Line 4(a) – Schedule of Delinquent Participant Contributions and Schedule H, Line 4(i) – Schedule of Assets (Held at End of Year) as of December 31, 2024, for each of the Plans have been subjected to audit procedures performed in conjunction with the audit of the Plans' financial statements. The supplemental schedules are the responsibility of the Plan's management. Our audit procedures included determining whether the supplemental schedules reconcile to the individual plan financial statements or the underlying accounting and other records, as applicable, and performing procedures to test the completeness and accuracy of the information presented in the supplemental schedules. In forming our opinion on the supplemental schedules, we evaluated whether the supplemental schedules, including their form and content, are presented in conformity with the Department of Labor's Rules and Regulations for Reporting and Disclosure under the Employee Retirement Income Security Act of 1974. In our opinion, the supplemental schedules are fairly stated, in all material respects, in relation to the individual plan financial statements as a whole.

<u>/s/ PricewaterhouseCoopers LLP</u>

Pittsburgh, Pennsylvania

June 12, 2025

We have served as the Howmet Aerospace Hourly Retirement Savings Plan's auditor since at least 1994. We have not been able to determine the specific year we began serving as auditor of the Howmet Aerospace Hourly Retirement Savings Plan.

We have served as the Howmet Aerospace Salaried Retirement Savings Plan's auditor since at least 1994. We have not been able to determine the specific year we began serving as auditor of the Howmet Aerospace Salaried Retirement Savings Plan.

*PricewaterhouseCoopers LLP, 301 Grant Street, Suite 4500, Pittsburgh, PA 15219* 

*T: (412) 355 6000, F: (412) 355 8089, www.pwc.com/us* 

------

**Employees' Retirement Savings Plans of Howmet Aerospace Inc. and Subsidiary Companies** 

**Statements of Individual Plan Net Assets Available for Benefits** 

**December 31, 2024**

---

| | | |
|:---|:---|:---|
| | **Hourly Plan** | **Salaried Plan** |
| **Assets** | | |
| Investments |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Plan's value of interest in Howmet Aerospace Retirement Savings Plan Master Trust at fair value |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Howmet Aerospace Stock Fund (<u>[Note 6](#i6dd5e15446374849bff2d3d585143051_34)</u>) | $65614205 | $74156913 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Self-directed brokerage accounts | 14220258 | 38025145 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other investments | 742133948 | 874565668 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total investments at fair value in Howmet Aerospace Retirement Savings Plan Master Trust | 821968411 | 986747726 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Investment contracts at contract value (<u>[Note 5](#i6dd5e15446374849bff2d3d585143051_31)</u>) | 96662907 | 83124171 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total value of interest in Howmet Aerospace Retirement Savings Plan Master Trust (<u>[Note 3](#i6dd5e15446374849bff2d3d585143051_25)</u>) | 918631318 | 1069871897 |
| Receivables |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Notes receivable from participants | 30859866 | 8153511 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Participant contribution receivable | 1465320 | 139239 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Employer contribution receivable | 1433068 | 140679 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total receivables | 33758254 | 8433429 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net assets available for benefits | $952389572 | $1078305326 |

---

The accompanying notes are an integral part of these financial statements.

------

**Employees' Retirement Savings Plans of Howmet Aerospace Inc. and Subsidiary Companies** 

**Statements of Individual Plan Net Assets Available for Benefits**

**December 31, 2023**

---

| | | |
|:---|:---|:---|
| | **Hourly Plan** | **Salaried Plan** |
| **Assets** | | |
| Investments |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Plan's value of interest in Howmet Aerospace Retirement Savings Plan Master Trust at fair value |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Howmet Aerospace Stock Fund (<u>[Note 6](#i6dd5e15446374849bff2d3d585143051_34)</u>) | $37691436 | $41635347 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Self-directed brokerage accounts | 11132761 | 34249847 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other investments | 660043501 | 813180243 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total investments at fair value in Howmet Aerospace Retirement Savings Plan Master Trust | 708867698 | 889065437 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Investment contracts at contract value (<u>[Note 5](#i6dd5e15446374849bff2d3d585143051_31)</u>) | 101423250 | 91192435 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total value of interest in Howmet Aerospace Retirement Savings Plan Master Trust (<u>[Note 3](#i6dd5e15446374849bff2d3d585143051_25)</u>) | 810290948 | 980257872 |
| Receivables |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Notes receivable from participants | 27114059 | 7870464 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Participant contribution receivable | 680732 | 2067 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Employer contribution receivable | 759760 | 5756 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total receivables | 28554551 | 7878287 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net assets available for benefits | $838845499 | $988136159 |

---

The accompanying notes are an integral part of these financial statements.

------

**Employees' Retirement Savings Plans of Howmet Aerospace Inc. and Subsidiary Companies** 

**Statements of Changes in Individual Plan Net Assets Available for Benefits** 

**For the Year Ended December 31, 2024**

---

| | | |
|:---|:---|:---|
| | **Hourly Plan** | **Salaried Plan** |
| **Additions** | | |
| Contributions |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Howmet Aerospace Stock Fund |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Participant | $1641217 | $1126374 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Employer | 1271197 | 1147539 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other investments |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Participant | 51920415 | 32779152 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Employer | 48962263 | 29800937 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total Contributions | 103795092 | 64854002 |
| Plan interest in Howmet Aerospace Retirement Savings Plan Master Trust investment gain |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Howmet Aerospace Stock Fund | 37022569 | 40212038 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Self-directed brokerage accounts | 2528113 | 8343131 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other investments | 91608265 | 127224830 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total Plan interest in Howmet Aerospace Retirement Savings Plan Master Trust investment income | 131158947 | 175779999 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total Additions | 234954039 | 240634001 |
| **Deductions** |  |  |
| Benefit payments to participants | (113184272) | (158690528) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net increase prior to Plan transfers | 121769767 | 81943473 |
| Plan transfers |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Transfers between plans, net | (8225694) | 8225694 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net increase | 113544073 | 90169167 |
| **Net assets available for benefits** |  |  |
| Beginning of year | 838845499 | 988136159 |
| End of year | $952389572 | $1078305326 |

---

The accompanying notes are an integral part of these financial statements.

------

**Employees' Retirement Savings Plans of Howmet Aerospace Inc. and** 

**Subsidiary Companies** 

**Notes to Financial Statements** 

**December 31, 2024 and 2023**

**1. Description of Plans**

**General** 

The Howmet Aerospace Hourly Retirement Savings Plan ("Hourly Plan") and Howmet Aerospace Salaried Retirement Savings Plan ("Salaried Plan") (collectively, the "Plans") are defined contribution savings plans maintained pursuant to a master trust agreement (the "Master Trust") between Howmet Aerospace Inc. ("Howmet" or the "Company") and the trustee, The Bank of New York Mellon ("Trustee"). Alight Solutions is the recordkeeper of the Plans. In general, the Plans provide various investment options for amounts withheld from employees' salaries and wages and for Company contributions. Plan documents are available to participants upon request.

Reference should be made to the basic prospectus and to the summary plan description of each Plan for a summary of the important features of each Plan, including eligibility, vesting, employee and company contributions, loans, withdrawals, and compliance with the Employee Retirement Income Security Act of 1974 ("ERISA").

**Eligibility and Vesting** 

The Plans are available to eligible employees of the Company and certain subsidiary locations that have adopted the Plans. Employees are immediately eligible for plan participation. Effective January 1, 2024, all participants are fully vested in the value of their contributions plus actual earnings thereon at all times. Company contributions are therefore nonforfeitable. Prior to January 1, 2024, contributions of the collectively bargained employees of the RMI Titanium Co. LLC ("RMI participants") vested on an incremental basis, becoming fully vested after three years of service.

**Employee Contributions** 

Eligible employees may elect to contribute to the Plans a percentage of eligible compensation as pre-tax or Roth after-tax, when combined not to exceed the Internal Revenue Service ("IRS") limit, with a maximum of 25% in the aggregate. Eligible employees in the Hourly Plan may defer as pre-tax savings and/or pre-tax catch-up contributions, a maximum of 50% of amounts earned under the applicable pay for performance plan in increments of 10% and subject to the maximums allowable by the Internal Revenue Code ("Code") and Department of Treasury regulations.

Negotiated deferrals, as defined in the Hourly Plan document, for certain eligible collective bargained employees will be contributed to their plan accounts as a separate pre-tax contribution.

Eligible employees age 50 or older or who become age 50 during the plan year who meet certain requirements may elect to make additional pre-tax and/or Roth catch-up contributions up to a maximum of $7,500, or such other amount adjusted for cost-of-living increases.

Elections can be changed effective for the first full payroll period following the election. Participants direct their contributions in multiples of 1% into various investment options offered by the Plans.

Eligible employees will be automatically enrolled in the Plans after 60 days of hire or rehire and subject to automatic payroll deductions equal to 3% of eligible compensation, which will be contributed to the Plans as pre-tax savings, unless the employee chooses to either enroll sooner or to not participate. After 90 days of plan participation, the pre-tax savings rate will be increased by 1% on each April 1 until the pre-tax savings rate attains a target rate of 6% of eligible compensation. The employee can change the contribution rate, annual rate increase, and target contribution rate or stop automatic enrollment at any time.

The Plans also accept rollover contributions of amounts representing distributions from other qualified defined benefit or defined contribution plans to the extent the rollover is permitted under Section 402(c) of the Code. An eligible employee's rollover contribution is credited to his or her account and thereafter treated like the participant's pre-tax savings with respect to withdrawals, loans, and investment options under the Plans. The Plans do not accept rollover contributions from Roth individual retirement accounts.

**Employer Contributions** 

For the nonbargaining eligible employees of the Hourly Plan, participating locations may elect to make a matching employer contribution up to 6% of the participants' eligible compensation. For the Salaried Plan, participating locations must make a matching employer contribution up to 6% of the participants' eligible compensation. The employer match for contributions to bargained eligible employees of the Hourly Plan, including RMI participants, is based upon the various collective bargaining agreements. The Company does not match negotiated deferral contributions under the Hourly Plan.

In addition, certain salaried and nonbargaining eligible employees of the Plans and certain bargained employees hired or rehired as of specified dates negotiated under the collective bargaining agreements will receive an employer retirement income contribution in the amount of 3% of applicable eligible compensation per pay period.

------

**Employees' Retirement Savings Plans of Howmet Aerospace Inc. and** 

**Subsidiary Companies** 

**Notes to Financial Statements** 

**December 31, 2024 and 2023**

The employer match and employer retirement income contributions are contributed in the same manner as the participant's other investment elections. If the participant has not made investment elections, company matching contributions will automatically be invested in the appropriate targeted maturity fund based on the participant's year of birth.

Certain eligible RMI participants hired or rehired as of specified dates negotiated with the unions will receive retiree medical savings contributions to their accounts in an amount equal to $0.35 per hour worked. These employer contributions are contributed to the appropriate targeted maturity fund based on the participant's year of birth but may be transferred by the participant from the default fund to any eligible fund.

**Participant Accounts** 

Each participant's account is credited with the participant's contribution and allocations of (a) the company's contribution and (b) plan earnings. Allocations of plan earnings are based on individual participant investment earnings or account balances, as defined. The benefit to which a participant is entitled is the benefit that can be provided from the participant's vested account.

**Notes Receivable From Participants** 

Generally, participants may borrow from their individual account balances in the Plans, excluding employer contributions made on or after January 1, 2011, employer retirement income contributions, transitional employer retirement income contributions, and retiree medical savings contributions, and legacy RTI International Metals Inc. Money Purchase Plan ("RTI MPP") contributions. However, RMI participants may borrow against employer contributions.

The minimum loan amount permitted by the Plans is $1,000. The maximum allowable loan from the Plans is the lesser of 50% of the participant's account balance or $50,000. Loans are collateralized by a portion of the participant's account balance, and repayments are made by periodic payroll deductions over periods ranging up to 4 years for general purpose loans and 25 years for residential loans. Interest is charged on all loans at the U.S. prime rate plus 1% at the time the loan is executed. Interest rates ranged from 4.25% to 9.50% as of December 31, 2024 and 4.25% to 9.25% as of December 31, 2023. For each loan request, a one-time $75 loan processing fee and an annual $25 loan maintenance fee are deducted from the loan amount to cover administrative expenses.

**Benefit Payments To Participants**

While actively employed, participants have access to account funds through loans, nonhardship withdrawals of after-tax and rollover contributions, withdrawals for participants over age 59<sup>1</sup>/2, hardship withdrawals of pre-tax contributions, and the related investment earnings on pre-tax contributions. No portion of a legacy RTI MPP balance shall be available for withdrawals during employment.

On termination of service due to death, disability, or retirement, participants with an account balance greater than $7,000 may elect to leave their investment in the Plans or receive a lump-sum distribution. Participants who leave their investments in the Plans and elect to receive a distribution at a later date are permitted four partial payouts each calendar year, however, each partial payout must be at least $250. Plan provisions require a lump-sum distribution when the participant attains age 69, except for legacy RTI MPP balances. The default election for RTI MPP distribution is a Qualified Joint and Survivor Annuity, which the Trustee shall purchase from an insurance company. Participants can choose alternative distribution options.

**Risks and Uncertainties** 

The Plans invest in investment securities. Investment securities are exposed to various risks such as interest rate, market, and credit risks. Due to the level of risk associated with certain investment securities, it is at least reasonably possible that changes in the values of investment securities will occur in the near term and that such changes could materially affect participants' account balances and the amounts reported in the Statements of Individual Plan Net Assets Available for Benefits and Statements of Changes in Individual Net Assets Available for Benefits.

**Plan Termination** 

Although it has not expressed any intent to do so, the Company has the right under the Plans to terminate the Plans subject to the provisions of ERISA. In the event of a plan termination, any unallocated assets of the Plans shall be allocated to participant accounts and distributed in such a manner as the Company may determine. Also, the Company has the right under the Plans to discontinue its contributions at any time, subject to collective bargaining agreement provisions for the Hourly Plan.

------

**Employees' Retirement Savings Plans of Howmet Aerospace Inc. and** 

**Subsidiary Companies** 

**Notes to Financial Statements** 

**December 31, 2024 and 2023**

**2. &nbsp;&nbsp;&nbsp;&nbsp;Summary of Accounting Policies**

**Basis of Accounting**

The financial statements of the Plans are prepared under the accrual basis of accounting in accordance with accounting principles generally accepted in the United States of America ("US GAAP").

**Use of Estimates** 

The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, and changes therein and to disclose contingent assets and liabilities. Actual results could differ from those estimates.

**Investment Valuation and Income Recognition** 

Investments are stated at fair value. Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. See <u>[Note 4](#i6dd5e15446374849bff2d3d585143051_28)</u> for a discussion of fair value measurements.

Investment contracts held by a defined contribution plan are reported at contract value. Contract value is the relevant measurement for that portion of the net assets available for benefits of a defined contribution plan attributable to fully benefit responsive investment contracts because contract value is the amount participants would receive if they were to initiate permitted transactions under the terms of the plan.

Purchases and sales of securities are recorded on a trade-date basis. Interest income is recorded on an accrual basis. Dividends are recorded on the ex-dividend date. Plan interest in Howmet Aerospace Retirement Savings Plan Master Trust investment income includes the Plans' unrealized and realized gains and losses on investments.

**Payments of Benefits** 

Benefits are recorded when paid.

**Notes Receivable From Participants** 

The Notes Receivable from Participants are reported at the unpaid principal balance of borrowings from individual account balances along with the accrued and unpaid interest. Loans in default are reclassified as benefit payments to participants based upon the terms of the plan.

**Administrative Expenses** 

The Fixed Income Fund (the "FI Fund") and Howmet Aerospace Stock Fund investment management fees are paid by the Plans from assets of their respective funds. The investment management fees for the FI Fund are based upon a percentage of the FI Fund's net assets. For the Howmet Aerospace Stock Fund, the investment fees are based upon the number of stock transactions within the fund during the year.

Many funds in the Plans are registered investment companies. Registered investment companies incur expenses that reduce the earnings in the fund and are reflected in the daily net asset value ("NAV"). Expenses charged by registered investment companies include asset management and administrative fees.

The funds offered by BlackRock Institutional Trust Company, N.A. as part of the commingled trusts, and the Trustee incur expenses that reduce earnings in the fund and are reflected in the NAV. These funds are not available to individual investors and are not publicly traded. Expenses charged by these funds include asset management and administrative fees.

A monthly fee is charged to all participants, including those who have funds in a self-directed brokerage account. An additional monthly account maintenance fee will apply if any investments are through a brokerage account.

For each loan request, a one-time $75 loan processing fee and an annual $25 loan maintenance fee are deducted from the loan amount to cover administrative expenses.

The 2024 administrative expenses charged to participants were $310,382 for the Salaried Plan and $884,599 for the Hourly Plan.

The fees described above are included within Plan Interest in Howmet Aerospace Retirement Savings Plan Master Trust investment gain.

------

**Employees' Retirement Savings Plans of Howmet Aerospace Inc. and** 

**Subsidiary Companies** 

**Notes to Financial Statements** 

**December 31, 2024 and 2023**

**3. &nbsp;&nbsp;&nbsp;&nbsp;Master Trust**

The Plans offer a variety of investment options, including self-directed brokerage accounts, which are held in safekeeping in a Master Trust under a trust arrangement by the Trustee. Each participating Plan has a divided interest in the Master Trust based on individual participant investment elections.

At December 31, 2024, Master Trust net assets were comprised of the following:

---

| | | | |
|:---|:---|:---|:---|
| | **Hourly**<br>**Plan's Interest<br>in Master Trust** | **Salaried**<br>**Plan's Interest<br>in Master Trust** | **Master Trust**<br>**Net Assets** |
| Investments at fair value |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Howmet Aerospace Stock Fund (includes $1,472,473 of investments in a common collective trust) | $65614205 | $74156913 | $139771118 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Self-directed brokerage accounts | 14220258 | 38025145 | 52245403 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Shares of Registered Investment Companies | 274738562 | 473431269 | 748169831 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Commingled trusts | 467395386 | 401134399 | 868529785 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total investments at fair value in Howmet Aerospace Retirement Savings Plan Master Trust | 821968411 | 986747726 | 1808716137 |
| Investment contracts at contract value | 96662907 | 83124171 | 179787078 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total value of interest in Howmet Aerospace Retirement Savings Plan Master Trust | $918631318 | $1069871897 | $1988503215 |

---

At December 31, 2023, Master Trust net assets were comprised of the following:

---

| | | | |
|:---|:---|:---|:---|
| | **Hourly**<br>**Plan's Interest<br>in Master Trust** | **Salaried**<br>**Plan's Interest<br>in Master Trust** | **Master Trust**<br>**Net Assets** |
| Investments at fair value |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Howmet Aerospace Stock Fund (includes $1,564,695 of investments in a common collective trust) | $37691436 | $41635347 | $79326783 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Self-directed brokerage accounts | 11132761 | 34249847 | 45382608 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Shares of Registered Investment Companies | 251816572 | 448735000 | 700551572 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Commingled trusts | 408226929 | 364445243 | 772672172 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total investments at fair value in Howmet Aerospace Retirement Savings Plan Master Trust | 708867698 | 889065437 | 1597933135 |
| Investment contracts at contract value | 101423250 | 91192435 | 192615685 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total value of interest in Howmet Aerospace Retirement Savings Plan Master Trust | $810290948 | $980257872 | $1790548820 |

---

------

**Employees' Retirement Savings Plans of Howmet Aerospace Inc. and** 

**Subsidiary Companies** 

**Notes to Financial Statements** 

**December 31, 2024 and 2023**

For the year ended December 31, 2024, the Master Trust investments (including gains and losses on investments bought and sold, as well as held during the year) appreciated in value as follows:

---

| | |
|:---|:---|
| **Net investment gain from Master Trust investments** | |
| Investment gain |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Howmet Aerospace Stock Fund | $77234607 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Self-directed brokerage accounts | 9664235 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Shares of Registered Investment Companies | 98125314 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Commingled trusts | 101762619 |
|  | 286786775 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Interest | 5491525 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Self-directed brokerage accounts dividends and capital gains | 979803 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Registered Investment Companies dividends | 13325171 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Howmet Aerospace stock dividends | 355672 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net investment gain from Howmet Aerospace Retirement Savings Plan Master Trust investments | $306938946 |

---

**4. &nbsp;&nbsp;&nbsp;&nbsp;Fair Value Measurements**

The framework for measuring fair value provides a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy are described below:

---

| | |
|:---|:---|
| Level 1 | Inputs to the valuation methodology are unadjusted quoted prices for identical assets or liabilities in active markets that the Plan has the ability to access. |
| Level 2 | Inputs to the valuation methodology include: |

---

 • Quoted prices for similar assets or liabilities in active markets;

 • Quoted prices for identical or similar assets or liabilities in inactive markets;

 • Inputs other than quoted prices that are observable for the asset or liability; or

 • Inputs that are derived principally from or corroborated by observable market data correlation or other means.

Level 3 Inputs to the valuation methodology are unobservable and significant to the fair value measurement.

The asset's or liability's fair value measurement level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. Valuation techniques used need to maximize the use of observable inputs and minimize the use of unobservable inputs.

Following is a description of the valuation methodologies used for assets measured at fair value. There have been no changes in methodologies used at December 31, 2024 and 2023.

**Cash and Cash Equivalents** 

Valued at cost which approximates fair value.

**Fixed Income Securities** 

Valued on the basis of valuations furnished by Trustee-approved, independent pricing services. These services determine valuations for normal institutional-size trading units of such securities using models or matrix pricing, which incorporates yield and/or price with respect to bonds that are considered comparable in characteristics such as rating, interest rate and maturity date and quotations from bond dealers to determine current value. If these valuations are deemed to be either not reliable or not readily available, the fair value will be determined in good faith by the Trustee.

------

**Employees' Retirement Savings Plans of Howmet Aerospace Inc. and** 

**Subsidiary Companies** 

**Notes to Financial Statements** 

**December 31, 2024 and 2023**

**Equity Securities** 

Valued at the closing price reported on the active market on which the individual securities are traded.

**Registered Investment Companies** 

Valued at the daily closing price as reported by the fund.

**Commingled Trusts** 

Valued at the NAV of shares held by the Plans at year end. These funds are not publicly listed.

There are no unfunded commitments with respect to commingled trusts. Participants can transact daily with these funds; however, significant withdrawals may be subject to redemption restrictions, at the Trustee's discretion, to the extent that it is determined such actions would disrupt management of the fund.

**Self-directed Brokerage Accounts** 

Accounts primarily consist of mutual funds and common stocks that are valued on the basis of readily determinable market prices.

The methods described above may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. Furthermore, while the Plan believes its valuation methods are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different fair value measurement at the reporting date.

The following table sets forth by level, within the fair value hierarchy, the Plans' assets at fair value as of December 31, 2024:

---

| | | | | |
|:---|:---|:---|:---|:---|
| | **Level 1** | **Level 2** | **Assets <br>Measured at Net<br>Asset Value** <sup>(a)</sup> | **Total** |
| **Fair Value Measurements at end of year** | | | | |
| Assets in Howmet Aerospace Retirement Savings Plan Master Trust |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Equity securities (Howmet Aerospace common stock) | $138290187 | $— | $— | $138290187 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Self-directed brokerage accounts | 48818566 | 3426837 |  | 52245403 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Registered investment companies  | 748169831 |  |  | 748169831 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Commingled and common collective trusts |  |  | 870010716 | 870010716 |
| Total fair value of plan assets in Howmet Aerospace Retirement Savings Plan Master Trust | $935278584 | $3426837 | $870010716 | $1808716137 |

---

(a) Certain investments that were measured at net asset value per share (or its equivalent) have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the line items presented in the statements of net assets available for benefits.

------

**Employees' Retirement Savings Plans of Howmet Aerospace Inc. and** 

**Subsidiary Companies** 

**Notes to Financial Statements** 

**December 31, 2024 and 2023**

The following table sets forth by level, within the fair value hierarchy, the Plans' assets at fair value as of December 31, 2023:

---

| | | | | |
|:---|:---|:---|:---|:---|
| | **Level 1** | **Level 2** | **Assets <br>Measured at Net<br>Asset Value** <sup>(a)</sup> | **Total** |
| **Fair Value Measurements at end of year** | | | | |
| Assets in Howmet Aerospace Retirement Savings Plan Master Trust |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Equity securities (Howmet Aerospace common stock) | $77989225 | $— | $— | $77989225 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Self-directed brokerage accounts | 40542874 | 4839734 |  | 45382608 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Registered investment companies  | 700551573 |  |  | 700551573 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Commingled and common collective trusts |  |  | 774009729 | 774009729 |
| Total fair value of plan assets in Howmet Aerospace Retirement Savings Plan Master Trust | $819083672 | $4839734 | $774009729 | $1597933135 |

---

(a) Certain investments that were measured at net asset value per share (or its equivalent) have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the line items presented in the statements of net assets available for benefits.

**5. &nbsp;&nbsp;&nbsp;&nbsp;Investment Contracts**

The Plans hold a portfolio of investment contracts, all of which are synthetic. The Investment Contracts are held in the FI Fund which is credited with earnings on the underlying investments and charged for participant withdrawals and administrative expenses. The wrap providers are contractually obligated to repay the principal by providing a guarantee that the crediting rate will not fall below 0%.

Contract value, as reported to the Plans by the investment manager, represents contributions made under contract, plus earnings, less participant withdrawals and administrative expenses. Participants may ordinarily direct the withdrawal or transfer of all or a portion of their investment at contract value.

Investment Contracts use the crediting rate formula to convert market value changes in the covered assets into income distributions in order to minimize the difference between the market and contract value of covered assets over time. Using the crediting rate formula, an estimated future market value is calculated by compounding the FI Fund's current market value at the FI Fund's current yield to maturity for a period equal to the FI Fund's duration. The crediting rate is the discount rate that equates estimated future market value with the FI Fund's current contract value, but it may not be less than zero.

The crediting rate, and hence the FI Fund's return, may be affected by many factors, including purchases and redemptions by shareholders. If the market value of the covered assets is higher than their contract value, the crediting rate will ordinarily be higher than the yield of the covered assets. Under these circumstances, cash from new investors will tend to lower the crediting rate, and redemptions by existing shareholders will tend to increase the crediting rate. The opposite is ordinarily true if the market value of the covered assets is lower than their contract value. There are no reserves against contract value for credit risk of the insurance companies or otherwise.

------

**Employees' Retirement Savings Plans of Howmet Aerospace Inc. and** 

**Subsidiary Companies** 

**Notes to Financial Statements** 

**December 31, 2024 and 2023**

Certain events limit the ability of the Plans to transact at contract value with the issuer. Such events include the following: (1) the Plan's failure to qualify under Section 401(a) or Section 401(k) of the Code, (2) the establishment of a defined contribution plan that competes with the Plan for employee contributions, (3) any substantive modification of the Plan or the administration of the Plan that is not consented to by the insurance companies, (4) complete or partial termination of the Plan, (5) any change in law, regulation or administration ruling applicable to the Plan that could have a material adverse effect on the FI Fund's cash flow, (6) merger or consolidation of the Plans with another plan, the transfers of the Plans' assets to another plan, or the sale, spin-off or merger of a subsidiary or division of the plan sponsor, (7) any communication given to participants by the plan sponsor or any other plan fiduciary that is designed to induce or influence participants not to invest in the FI Fund or to transfer assets out of the FI Fund, (8) exclusion of a group of previously eligible employees from eligibility in the Plan, (9) any early retirement program, group termination, group layoff, facility closing, or similar program or (10) any transfer of assets from the FI Fund directly to a competing option.

The Plans' administrator does not believe that the occurrence of any such event, which would limit the Plans' ability to transact at contract value with participants, is probable.

The Investment Contracts generally allow the contract issuers (banks or insurance companies) to terminate the agreement. However, the banks or insurance companies would be required to grant the FI Fund a right to amortize any market to book differential over an agreed upon period of time.

**6. &nbsp;&nbsp;&nbsp;&nbsp;Related-Party and Party-In-Interest Transactions**

The Plans own shares of common stock of Howmet Aerospace Inc. through the investment in the Howmet Aerospace Stock Fund; therefore, these transactions qualify as party-in-interest transactions. These transactions are exempt as defined in ERISA Section 408 and the regulations thereunder. For the year ended December 31, 2024, purchases and sales of shares of common stock in the Howmet Aerospace Stock Fund were $4,281,042 and $20,476,854, respectively. Dividends earned on Howmet Aerospace Inc. common stock during 2024 were $355,672. As of December 31, 2024 and 2023, the Plans owned 1,269,649 and 1,442,375 shares of Howmet Aerospace common stock, respectively.

Effective December 27, 2024, the Howmet Aerospace Stock Fund was frozen to new contributions and investments. Participant have the ability to transfer funds out of the Howmet Aerospace Stock Fund throughout 2025 until it is eliminated as an investment option in December 2025, upon which balances will be redirected into another investment option within the Plan.

The Company pays certain administrative expenses or performs administrative functions on behalf of the Plans.

The Plans invest in funds managed by The Bank of New York Mellon. The Bank of New York Mellon is the trustee as defined by the Plans, and therefore, these transactions and expenses paid to Bank of New York Mellon qualify as party-in-interest transactions.

Participants may borrow from their individual account balances in the Plans. The loan program is discussed in <u>[Note 1](#i6dd5e15446374849bff2d3d585143051_19)</u>. These transactions qualify as party-in-interest transactions.

**7. &nbsp;&nbsp;&nbsp;&nbsp;Tax Status**

The IRS has determined and informed the plan sponsors by letters dated April 28, 2017 for the Hourly Plan and Salaried Plan that the Plans are qualified, and the trust established under the Plans is tax exempt under the appropriate sections of the Code. These Plans have been amended since receiving the determination letters. However, the Plans' administrator and the Plans' tax counsel believe that the Plans are currently designed and being operated in compliance with the applicable requirements of the Code. Therefore, they believe the Plans were qualified and the related trust was tax-exempt as of the financial statement's date.

US GAAP requires the Plans' management to evaluate tax positions taken by the Plans and recognize a tax liability (or asset) if the organization has taken an uncertain position that would not be sustained upon examination by the IRS. The Plans' administrator and its tax counsel have analyzed the tax positions taken by the Plans and have concluded that as of December 31, 2024 and 2023, there are no uncertain tax positions taken or expected to be taken that would require recognition of a liability (or asset) or disclosure to the financial statements. As such, no reserve is required under US GAAP. The Plans are subject to audits by the IRS; however, there are no current IRS audits for any tax periods in progress. The Plans' administrator and its tax counsel believe the Plans are no longer subject to IRS audits outside the statutory audit period.

------

**Employees' Retirement Savings Plans of Howmet Aerospace Inc. and** 

**Subsidiary Companies** 

**Notes to Financial Statements** 

**December 31, 2024 and 2023**

**8. &nbsp;&nbsp;&nbsp;&nbsp;Subsequent Events**

Management has evaluated the events and transactions that have occurred through June 12, 2025, the date the financial statements were issued, and noted no items requiring adjustment of the financial statements or additional disclosures, except as noted below:

Effective January 2025, the Plans transferred all investment balances and participant accounts to Empower Annuity Insurance Company of America ("Empower"). Empower Trust Company, LLC and Empower Retirement, LLC, subsidiaries of Empower, now serve as the trustee and recordkeeper, respectively, of the Plans and will be classified as parties-in-interest.

------

**Howmet Aerospace Hourly Retirement Savings Plan** 

**EIN #25-0317820, Plan 008** 

**Schedule H, Line 4(i)—Schedule of Assets (Held at End of Year)** 

**December 31, 2024**

---

| | | | | |
|:---|:---|:---|:---|:---|
| **(a)** | **(b)**<br>**Identity of issue, borrower, lessor, or similar party** | **(c)<br>Description of investment including maturity date, rate of interest,<br>collateral, par, or maturity value.** | **(d)**<br>**Cost** | **(e)**<br>**Current value** |
| \* | Howmet Aerospace Retirement Savings Plan Master Trust | Investment in Howmet Aerospace Retirement Savings Plan Master Trust | \*\* | $918631318 |
| \* | Notes receivable from participants | Interest rates range from 4.25% to 9.50%; loans due at various maturity dates from less than one year to 25 years | \*\* | 30859866 |

---

\* A party-in-interest as defined by ERISA. <br> \*\* Cost omitted for participant-directed investments.

------

**Howmet Aerospace Salaried Retirement Savings Plan** 

**EIN #25-0317820, Plan 007** 

**Schedule H, Line 4(i) – Schedule of Assets (Held at End of Year)** 

**December 31, 2024**

---

| | | | | |
|:---|:---|:---|:---|:---|
| **(a)** | **(b)**<br>**Identity of issue, borrower, lessor, or similar party** | **(c)<br>Description of investment including maturity date, rate of interest,<br>collateral, par, or maturity value.** | **(d)**<br>**Cost** | **(e)**<br>**Current value** |
| \* | Howmet Aerospace Retirement Savings Plan Master Trust | Investment in Howmet Aerospace Retirement Savings Plan Master Trust | \*\* | $1069871897 |
| \* | Notes receivable from participants | Interest rates range from 4.25% to 9.50%; loans due at various maturity dates from less than one year to 25 years | \*\* | 8153511 |

---

\* A party-in-interest as defined by ERISA. <br> \*\* Cost omitted for participant-directed investments.

------

**Howmet Aerospace Hourly Retirement Savings Plan** 

**EIN #25-0317820, Plan 008** 

**Schedule H, Line 4(a) – Schedule of Delinquent Participant Contributions** 

**December 31, 2024**

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Participant contributions transferred late to the Plan** | **Totals that constitute nonexempt prohibited transactions** | **Totals that constitute nonexempt prohibited transactions** | **Totals that constitute nonexempt prohibited transactions** | |
| **Check here if late participant loan repayments are included: ☐** | **Contributions not corrected** | **Contributions corrected outside VFCP** | **Contributions pending correction in VFCP\*** | **Total fully corrected under VFCP and PTE 2002-51** |
| $7099 | $— | $— | $7099 | $— |

---

\* All contributions were remitted to the Plan in 2025. Lost earnings are in the process of being calculated and will be remitted to the Plan once finalized.

------

**Howmet Aerospace Salaried Retirement Savings Plan** 

**EIN #25-0317820, Plan 007** 

**Schedule H, Line 4(a) – Schedule of Delinquent Participant Contributions** 

**December 31, 2024**

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Participant contributions transferred late to the Plan** | **Totals that constitute nonexempt prohibited transactions** | **Totals that constitute nonexempt prohibited transactions** | **Totals that constitute nonexempt prohibited transactions** | |
| **Check here if late participant loan repayments are included: ☐** | **Contributions not corrected** | **Contributions corrected outside VFCP** | **Contributions pending correction in VFCP\*** | **Total fully corrected under VFCP and PTE 2002-51** |
| $5588 | $— | $— | $5588 | $— |

---

\* All contributions were remitted to the Plan in 2025. Lost earnings are in the process of being calculated and will be remitted to the Plan once finalized.

------

**EXHIBIT INDEX** 

---

| | |
|:---|:---|
| **<u>Exhibit No.</u>** | **<u>Description</u>** |
| <u>[23.1](ex23112312024.htm)</u> | <u>[Consent of Independent Registered Public Accounting Firm](ex23112312024.htm)</u> |

---

------

**SIGNATURES** 

*The Plans.* Pursuant to the requirements of the Securities Exchange Act of 1934, the Benefits Management Committee for the Howmet Aerospace Hourly Retirement Savings Plan and Howmet Aerospace Salaried Retirement Savings Plan has duly caused this Annual Report to be signed on its behalf by the undersigned hereunto duly authorized.

HOWMET AEROSPACE HOURLY RETIREMENT SAVINGS PLAN <br> HOWMET AEROSPACE SALARIED RETIREMENT SAVINGS PLAN

---

| | |
|:---|:---|
| By: | /s/ Ken Giacobbe |
|  | Ken Giacobbe |
|  | Benefits Management Committee Member |
| By: | /s/ Neil E. Marchuk |
|  | Neil E. Marchuk |
|  | Benefits Management Committee Member |
| By: | /s/ Brian Redmond |
|  | Brian Redmond |
|  | Benefits Management Committee Member |
| By: | /s/ Barbara L. Shultz |
|  | Barbara L. Shultz |
|  | Benefits Management Committee Member |

---

June 12, 2025

## Exhibit 23.1

**Exhibit 23.1**

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (Nos. 333-266545, 333-106411, 333-32516, 333-128445, 333-146330, 333-153369, 333-155668, 333-168428, 333-170801, 333-182899, 333-209772, and 333-229914) of Howmet Aerospace Inc. of our report dated June 12, 2025 relating to the financial statements and supplemental schedules of the Howmet Aerospace Hourly Retirement Savings Plan and Howmet Aerospace Salaried Retirement Savings Plan which appears in this Form 11-K.

<u>/s/ PricewaterhouseCoopers LLP</u>

Pittsburgh, Pennsylvania

June 12, 2025

<br>