Second Quarter 2022 Earnings Call Tim Myers – Chief Executive Officer Erick Asmussen – Chief Financial Officer August 2, 2022

Important Information 2 Forward-Looking Statements This presentation contains statements that relate to future events and expectations and, as such, constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements include those containing such words as "anticipates," "believes," "could," "estimates," "expects," "forecasts," "goal," "guidance," "intends," "may," "outlook," "plans," "projects," "seeks," "sees," "should," "targets," "will," "would," or other words of similar meaning. All statements that reflect Arconic’s expectations, assumptions, projections, beliefs or opinions about the future, other than statements of historical fact, are forward-looking statements, including, without limitation, statements, relating to the condition of, or trends or developments in, the ground transportation, aerospace, building and construction, industrial, packaging and other end markets; Arconic’s future financial results, operating performance, working capital, cash flows, liquidity and financial position; cost savings and restructuring programs; Arconic's strategies, outlook, business and financial prospects; share repurchases; costs associated with pension and other postretirement benefit plans; projected sources of cash flow; and potential legal liability. These statements reflect beliefs and assumptions that are based on Arconic’s perception of historical trends, current conditions and expected future developments, as well as other factors Arconic believes are appropriate in the circumstances. Forward-looking statements are not guarantees of future performance, and actual results may differ materially from those indicated by these forward-looking statements due to a variety of risks, uncertainties and changes in circumstances, many of which are beyond Arconic’s control. Such risks and uncertainties include, but are not limited to: (a) continuing uncertainty regarding the duration and impact of the COVID-19 pandemic on our business and the businesses of our customers and suppliers including labor shortages and increased quarantine rates; (b) deterioration in global economic and financial market conditions generally; (c) unfavorable changes in the end markets we serve; (d) the inability to achieve the level of revenue growth, cash generation, cost savings, benefits of our management of legacy liabilities, improvement in profitability and margins, fiscal discipline, or strengthening of competitiveness and operations anticipated or targeted; (e) adverse changes in discount rates or investment returns on pension assets; (f) competition from new product offerings, disruptive technologies, industry consolidation or other developments; (g) the loss of significant customers or adverse changes in customers’ business or financial condition; (h) manufacturing difficulties or other issues that impact product performance, quality or safety; (i) the impact of pricing volatility in raw materials and inflationary pressures on our costs of production; (j) a significant downturn in the business or financial condition of a key supplier or other supply chain disruptions; (k) challenges to or infringements on our intellectual property rights; (l) the inability to successfully implement our re-entry into the U.S. packaging market or to realize the expected benefits of other strategic initiatives or projects; (m) our ability to complete the previously announced sale with respect to our Kawneer® business; (n) the inability to identify or successfully respond to changing trends in our end markets; (o) the impact of potential cyber attacks and information technology or data security breaches; (p) geopolitical, economic, and regulatory risks relating to our global operations, including compliance with U.S. and foreign trade and tax laws, sanctions, embargoes and other regulations; (q) the outcome of contingencies, including legal proceedings, government or regulatory investigations, and environmental remediation and compliance matters; (r) restrictions imposed by authorities on our Russian operations; (s) our ability to complete the announced divestiture of our Russian operations and the impact of such divestiture on our business and operations; (t) reactions to or consequences of our announcement regarding the sale of our Russian operations, including the potential for our Russian operations to be nationalized or otherwise expropriated by the Russian government; (u) the impact of the conflict between Russia and Ukraine on economic conditions in general and on our business and operations; and (v) the other risk factors summarized in Arconic’s Form 10-K for the year ended December 31, 2021 and other reports filed with the U.S. Securities and Exchange Commission (SEC). The above list of factors is not exhaustive or necessarily in order of importance. Market projections are subject to the risks discussed above and in this presentation, and other risks in the market. The statements in this presentation are made as of the date of this presentation, even if subsequently made available by Arconic on its website or otherwise. Arconic disclaims any intention or obligation to update publicly any forward-looking statements, whether in response to new information, future events, or otherwise, except as required by applicable law.

Important Information (cont’d) 3 Non-GAAP Financial Measures Some of the information included in this presentation is derived from Arconic’s consolidated financial information but is not presented in Arconic’s financial statements prepared in accordance with accounting principles generally accepted in the United States of America (GAAP). Certain of these financial measures are considered “non-GAAP financial measures” under SEC rules. These non-GAAP financial measures supplement our GAAP disclosures and should not be considered an alternative to any measure of performance or financial condition as determined in accordance with GAAP, and investors should consider Arconic’s performance and financial condition as reported under GAAP and all other relevant information when assessing the performance or financial condition of Arconic. Non-GAAP financial measures have limitations as analytical tools, and investors should not consider them in isolation or as a substitute for analysis of the results or financial condition as reported under GAAP. Non-GAAP financial measures presented by Arconic may not be comparable to non-GAAP financial measures presented by other companies. Reconciliations to the most directly comparable GAAP financial measures and management’s rationale for the use of the non-GAAP financial measures can be found in the appendix to this presentation. Arconic has not provided reconciliations of any forward-looking non-GAAP financial measures, such as adjusted EBITDA, free cash flow, and adjusted free cash flow, to the most directly comparable GAAP financial measures because such reconciliations are not available without unreasonable efforts due to the variability and complexity with respect to the charges and other components excluded from the non-GAAP measures, such as the effects of metal price lag, foreign currency movements, gains or losses on sales of assets, taxes, and any future restructuring or impairment charges. These reconciling items are in addition to the inherent variability already included in the GAAP measures, which includes, but is not limited to, price/mix and volume. Arconic believes such reconciliations would imply a degree of precision that would be confusing or misleading to investors.

2Q 2022 Results Improve Year Over Year as Demand Remains Strong Continued Year Over Year Profit Growth Sales of $2.5 billion, up 41% year over year (up 17% organically), up 16% from prior quarter Net income of $114 million, or $1.05 per share, compared with a net loss of $427 million, or $3.89 per share, in 2Q 2021 Adjusted EBITDA of $204 million, up 9% year over year Cash provided from operations of $162 million Favorable End Markets Packaging market demand remains strong Industrial market strength continues but production was hampered by Tennessee operational issues Ground transportation market showed modest improvement sequentially Aerospace sequential ramp accelerated for a third consecutive quarter Solid building and construction demand and pricing driven by North American non-residential growth Growing Free Cash Flow Supporting Disciplined Capital Allocation Strategy Increased 2022 free cash flow guidance to approximately $300 million due to impact of declining aluminum prices on working capital Repurchased ~1.3 million shares for ~$37 million and have repurchased ~6.7 million shares through June 30, 2022 for ~$214 million under two-year $300 million authorization that began in May 2021 Phase 2 investments on time and on budget for run rate $75 million Adjusted EBITDA in 2023 and Phase 3 projects continue through the planning process 4 See appendix for non-GAAP financial measure reconciliations.

2Q 2022 Sales Growth Led by Aerospace and Packaging 5 Ground Transportation Customer supply chain issues stabilizing, but automotive and commercial transportation production remains below historical levels Building and Construction Pricing net of inflation driving top and bottom-line performance Packaging North American volumes continue to ramp up Industrial Products and Other Operational issues at Tennessee limited production as the facility ramps to full utilization Demand and pricing remain strong Aerospace Production rates increasing at aerospace OEMs Organic revenue is a non-GAAP financial measure. Management believes this measure is meaningful to investors as it presents revenue on a comparable basis for all periods presented due to the impact of changes in aluminum prices, divestitures, and foreign currency fluctuations relative to the prior year period. See appendix for non-GAAP financial measure reconciliations. End Market Revenue year- over-year change Organic revenue year-over-year change Revenue sequential change Ground Transportation 38% 10% 15% Building and Construction 37% 29% 13% Packaging 88% 47% 30% Industrial Products and Other 12% (11%) 7% Aerospace 65% 50% 19% 2Q 2022 Organic Revenue1 by End Market

2Q 2022 Financial Highlights Sales of $2.5 billion, up 41% year over year (17% organically) Net income of $114 million, or $1.05 per share, compared with a net loss of $427 million, or $3.89 per share, in 2Q 2021. 2Q 2022 net income includes after-tax net foreign currency gains of $48 million. 2Q 2021 net loss includes an after-tax non-cash pension settlement charge of $423 million Adjusted EBITDA of $204 million, up 9% year over year Cash provided from operations was $162 million and capital expenditures were $33 million Quarter-end cash balance was $252 million with total cash and liquidity of approximately $1.4 billion Repurchased ~1.3 million shares for ~$37 million. Since program inception in May 2021 through 2Q 2022 end, repurchased ~6.7 million shares for ~$214 million of the $300 million two-year authorization Adjusted EBITDA 2Q 2020 – 2Q 2022 ($M) 6 See appendix for non-GAAP financial measure reconciliations.

2Q 2022 Adjusted EBITDA Benefiting from Price Offsetting Inflation Revenue Adjusted EBITDA $M Year-over-Year % $M Year-over-Year % 2Q 2021 $1,801 $187 Price 166 9% 166 89% Volume/Mix 139 8% 27 14% Savings Net of Inflation - - (154) (82%) Aluminum Price 456 25% (17) (9%) FX/Other (14) (1%) (5) (3%) 2Q 2022 $2,548 41% $204 9% 7 Reflects increase of aluminum price that is not passed through but offset over time through price increases in Building and Construction Systems. See appendix for non-GAAP financial measure reconciliations. 1

2Q 2022 Year-over-Year Segment Results Revenue Segment Adjusted EBITDA Drivers ($M) 2Q 2021 2Q 2022 2Q 2021 Price Volume/ Mix Savings Net of Inflation Other/ Aluminum 2Q 2022 Rolled Products $1,474 $2,113 $173 85 23 (103) (4) $174 Price, volume, and mix offsetting net inflation Operational issues limited volume growth Year-over-year change 43% 14% Organic 1% Building and Construction Systems $257 $329 $35 73 1 (38) (18) $53 Price continues to offset net inflation Year-over-year change 28% 26% Organic 51% Extrusions $70 $105 ($8) 8 3 (15) - ($12) Operational issues driving underperformance Reassessing product portfolio Year-over-year change 50% 43% Organic (50%) 8 1 Reflects increase of aluminum price that is not passed through but offset over time through price increases. Includes ($17) of Aluminum Price and ($1) of FX/Other. See appendix for non-GAAP financial measure reconciliations. Organic revenue is a non-GAAP financial measure. Management believes this measure is meaningful to investors as it presents revenue on a comparable basis for all periods presented due to the impact of changes in aluminum prices, divestitures, and foreign currency fluctuations relative to the prior year period. See appendix for non-GAAP financial measure reconciliations.

Ground Transportation Semiconductor supply issues stabilizing, but production levels remain low compared to historical levels Industrial Products and Other Outlook reduced due to operational issues at Tennessee facility impacting industrial production in 2Q and 3Q 2022 Building and Construction Market remains strong led by growth in North American non-residential construction Packaging Demand remains strong as Tennessee packaging volumes essentially reached full capacity by the end of 2Q 2022 Continued Russian supply chain and demand uncertainty in the remainder of the year Aerospace Outlook increased as demand for aerospace rolled products continues accelerating into 2H 2022 2022 Organic Revenue Outlook 2022 Organic Revenue Year-over-Year Trajectory 9 Prior Current Prior Current Prior Current Prior Current Prior Current 2022 Compared to Prior Outlook

10 Phase 2 and 3 Organic Growth Projects On Time and On Budget PHASE 2 STATUS ON BUDGET RUN RATE BY Davenport Casting Pit Expansion ✔ IN TRIALS ✔ YE2023 Lancaster Hot Mill Upgrade ✔ ON TIME ✔ YE2023 PHASE 3 Davenport Pit Optimization ✔ PLANNING ✔ YE2024 Davenport Hot and Cold Mill Debottlenecking ✔ PLANNING ✔ YE2024 Köfém Hot Mill and Slitter Debottlenecking ✔ PLANNING ✔ YE2024 Köfém Cast House Expansion ✔ PLANNING ✔ YE2024 Lancaster Additional Casting Pit #1 ✔ PLANNING ✔ YE2025 Lancaster Industrial Growth ✔ PLANNING ✔ YE2025 Lancaster Additional Casting Pit #2 ✔ PLANNING ✔ YE2025 Combined Phase 2 and 3 represent total capital expenditures of ~$650M and run-rate Adjusted EBITDA of ~$275M

Russia (Samara) Operations Update 11 Arconic announced on May 19, 2022 that it is pursuing a sale of the Samara operations The company is having discussions with several potential buyers as well as authorities in the U.S. and Russia The timing of any possible transaction remains uncertain Samara operations continue to run normally, but are expected to be impacted by reduced exports due to sanctions in the second half of the year 2Q 2022 sales of $314 million compared with $234 million in 2Q 2021 2Q 2022 Adjusted EBITDA of $24 million compared with $24 million in 2Q 2021 Adjusted EBITDA is expected to be approximately $50-$80 million in 2022, compared with $87 million in 2021, impacted by uncertainty related to supply chain, demand conditions, and sanction and other trade restrictions Quarter end cash of $121 million up from $79 million at year-end 2021 due to foreign currency impact and lower aluminum prices Samara Facility 2021 Revenue by End Market

Revised 2022 Outlook and Key Themes 12 ($M) Prior Updated Revenue1 $10,100 - $10,500 $9,600 - $10,000 Adjusted EBITDA2 $820 - $870 $820 - $870 Free cash flow1,2 ~$250 ~$300 Positioned to deliver ~10% Adjusted EBITDA CAGR from 2022-2026 Diverse exposure to growing end markets supports high-return organic investments Tennessee ramp up issues to be resolved in 3Q 2022 and full run rate production expected in 4Q 2022 Kawneer sale transaction paused 2H 2022 Adjusted EBITDA expected to be weighted to 4Q 2022 due to 3Q 2022 maintenance outages and typical European seasonality Full-year 2022 Adjusted EBITDA expected to be at low end of guided range Phase 2 growth investments in Lancaster and Davenport on track for trials by year end and run rate production in 2023 Continued execution of share repurchase program Assumes average LME aluminum price of $2,500/mt and Midwest Premium of $700/mt. Assumes no factored receivables. Arconic has not provided reconciliations of any forward-looking non-GAAP financial measures, such as adjusted EBITDA and free cash flow, to the most directly comparable GAAP financial measures because such reconciliations are not available without unreasonable efforts due to the variability and complexity with respect to the charges and other components excluded from the non-GAAP measures, such as the effects of metal price lag, foreign currency movements, gains or losses on sales of assets, taxes, and any future restructuring or impairment charges. These reconciling items are in addition to the inherent variability already included in the GAAP measures, which includes, but is not limited to, price/mix and volume. Arconic believes such reconciliations would imply a degree of precision that would be confusing or misleading to investors. Adjusted EBITDA ($M) +15%-22% +15% $870

Appendix

14 ($M) Quarter ended June 30, March 31, June 30, 2022 2022 2021 Total Segment Adjusted EBITDA(1) $ 215 $ 215 $ 200 Unallocated amounts: Corporate expenses(2) (10) (9) (10) Stock-based compensation expense (8) (5) (5) Metal price lag(3) 30 (36) (11) Unrealized gains on mark-to-market hedging instruments and derivatives 21 2 – Provision for depreciation and amortization (62) (60) (62) Restructuring and other charges(4) (2) (5) (597) Other(5) (40) (6) (10) Operating income (loss) 144 96 (495) Interest expense (26) (25) (25) Other income (expenses), net(6) 35 (17) (15) (Provision) Benefit for income taxes (38) (12) 108 Net income attributable to noncontrolling interest (1) – – Consolidated net income (loss) attributable to Arconic Corporation $ 114 $ 42 $ (427) Reconciliation of Segment Adjusted EBITDA Arconic’s profit or loss measure for its reportable segments is Segment Adjusted EBITDA (Earnings before interest, taxes, depreciation, and amortization). The Company calculates Segment Adjusted EBITDA as Total sales (third-party and intersegment) minus each of (i) Cost of goods sold, (ii) Selling, general administrative, and other expenses, and (iii) Research and development expenses, plus each of (i) Stock-based compensation expense, (ii) Metal price lag (see footnote 3), and (iii) Unrealized (gains) losses on mark-to-market hedging instruments and derivatives (see below). Arconic’s Segment Adjusted EBITDA may not be comparable to similarly titled measures of other companies’ reportable segments. Effective in the first quarter of 2022, management modified the Company’s definition of Segment Adjusted EBITDA to exclude the impact of unrealized gains and losses on mark-to-market hedging instruments and derivatives. This modification was deemed appropriate as Arconic is considering entering into additional hedging instruments in future reporting periods if favorable conditions exist to mitigate cost inflation. Certain of these instruments may not qualify for hedge accounting resulting in unrealized gains and losses being recorded directly to Sales or Cost of goods sold, as appropriate (i.e., mark-to-market). Additionally, this change was also applied to derivatives that do not qualify for hedge accounting for consistency purposes. The Company does not have a regular practice of entering into contracts that are treated as derivatives for accounting purposes. Ultimately, this change was made to maintain the transparency and visibility of the underlying operating performance of Arconic’s reportable segments. Prior to this change, the Company had a limited number of hedging instruments and derivatives that did not qualify for hedge accounting, the unrealized impact of which was not material to Arconic’s Segment Adjusted EBITDA performance measure. Accordingly, periods prior to the effective date of this change were not recast to reflect this change. Total Segment Adjusted EBITDA is the sum of the respective Segment Adjusted EBITDA for each of the Company’s three reportable segments: Rolled Products, Building and Construction Systems, and Extrusions. This amount is being presented for the sole purpose of reconciling Segment Adjusted EBITDA to the Company’s Consolidated net income (loss). Corporate expenses are composed of general administrative and other expenses of operating the corporate headquarters and other global administrative facilities. Metal price lag represents the financial impact of the timing difference between when aluminum prices included in Sales are recognized and when aluminum purchase prices included in Cost of goods sold are realized. This adjustment aims to remove the effect of the volatility in metal prices and the calculation of this impact considers applicable metal hedging transactions. In the quarter ended June 30, 2021, Restructuring and other charges includes $568 related to the settlement of a portion of the Company’s U.S. defined benefit pension plan obligations as a result of the purchase of a group annuity contract ($549) and elections by certain plan participants to receive lump-sum benefit payments ($19). Other includes certain items that impact Cost of goods sold and Selling, general administrative, and other expenses on the Company’s Statement of Consolidated Operations that are not included in Segment Adjusted EBITDA, including those described as “Other special items” (see footnote 5 to the Reconciliation of Total Company Adjusted EBITDA presented elsewhere in this Appendix). In the quarter ended June 30, 2022, Other income, net includes a $54 gain for the remeasurement of monetary balances, primarily cash, related to the Company’s operations in Russia from rubles to the U.S. dollar. This gain was the result of a significant strengthening of the ruble against the U.S. dollar in the 2022 second quarter.

15 ($M) Quarter ended Quarter ended Quarter ended June 30, 2022 March 31, 2022 December 31, 2021 September 30, 2021 June 30, 2021 March 31, 2021 December 31, 2020 September 30, 2020 June 30, 2020 Net income (loss) attributable to Arconic Corporation $ 114 $ 42 $ (38) $ 16 $ (427) $ 52 $ (64) $ 5 $ (96) Add: Net income attributable to noncontrolling interest 1 – – – – – – – – Provision (Benefit) for income taxes 38 12 19 11 (108) 16 (4) 10 (32) Other (income) expenses, net(1) (35) 17 15 15 15 22 1 27 16 Interest expense 26 25 26 26 25 23 21 22 40 Restructuring and other charges(2) 2 5 12 14 597 1 127 3 77 Impairment of goodwill(3) – – 65 – – – – – – Provision for depreciation and amortization 62 60 67 61 62 63 60 63 68 Stock-based compensation 8 5 7 8 5 2 5 6 5 Metal price lag(4) (30) 36 (11) 21 11 (5) (3) 16 10 Unrealized gains on mark-to-market hedging instruments and derivatives (21) (2) – – – – – – – Other special items(5) 39 5 13 (1) 7 5 8 13 11 Adjusted EBITDA $ 204 $ 205 $ 175 $ 171 $ 187 $ 179 $ 151 $ 165 $ 99 Sales $ 2,548 $ 2,191 $ 2,138 $ 1,890 $ 1,801 $ 1,675 $ 1,462 $ 1,415 $ 1,187 Adjusted EBITDA Margin 8.0% 9.4% 8.2% 9.0% 10.4% 10.7% 10.3% 11.7% 8.3% Arconic’s definition of Adjusted EBITDA (Earnings before interest, taxes, depreciation, and amortization) is net margin plus an add-back for the following items: Provision for depreciation and amortization; Stock-based compensation; Metal price lag (see footnote 4); Unrealized (gains) losses on mark-to-market hedging instruments and derivatives (see below); and Other special items. Net margin is equivalent to Sales minus the following items: Cost of goods sold; Selling, general administrative, and other expenses; Research and development expenses; and Provision for depreciation and amortization. Special items are composed of restructuring and other charges, discrete income tax items, and other items as deemed appropriate by management. There can be no assurances that additional special items will not occur in future periods. Adjusted EBITDA is a non-GAAP financial measure. Management believes that this measure is meaningful to investors because Adjusted EBITDA provides additional information with respect to Arconic’s operating performance and the Company’s ability to meet its financial obligations. The Adjusted EBITDA presented may not be comparable to similarly titled measures of other companies. Effective in the first quarter of 2022, management modified the Company’s definition of Adjusted EBITDA to exclude the impact of unrealized gains and losses on mark-to-market hedging instruments and derivatives. This modification was deemed appropriate as Arconic is considering entering into additional hedging instruments in future reporting periods if favorable conditions exist to mitigate cost inflation. Certain of these instruments may not qualify for hedge accounting resulting in unrealized gains and losses being recorded directly to Sales or Cost of goods sold, as appropriate (i.e., mark-to-market). Additionally, this change was also applied to derivatives that do not qualify for hedge accounting for consistency purposes. The Company does not have a regular practice of entering into contracts that are treated as derivatives for accounting purposes. Ultimately, this change was made to maintain the transparency and visibility of the underlying operating performance of Arconic. Prior to this change, the Company had a limited number of hedging instruments and derivatives that did not qualify for hedge accounting, the unrealized impact of which was not material to Arconic’s Adjusted EBITDA. Accordingly, periods prior to the effective date of this change were not recast to reflect this change. Reconciliation of Total Company Adjusted EBITDA

In the quarter ended June 30, 2022, Other income, net includes a $54 gain for the remeasurement of monetary balances, primarily cash, related to the Company’s operations in Russia from rubles to the U.S. dollar. This gain was the result of a significant strengthening of the ruble against the U.S. dollar in the 2022 second quarter. In the year ended December 31, 2021, Restructuring and other charges includes $584 related to the settlement of a portion of the Company’s U.S. defined benefit pension plan obligations as a result of the purchase of a group annuity contract ($549-2Q21) and elections by certain plan participants to receive lump-sum benefit payments ($11-4Q21, $5-3Q21, $19-2Q21). In the year ended December 31, 2020, Restructuring and other charges includes a $198 settlement charge related to the annuitizations of a portion of the Company’s U.S. ($140-4Q20) and U.K. ($3-3Q20, $55-2Q20) defined benefit pension plan obligations and a $25 benefit (4Q20) for contingent consideration received related to the October 2018 sale of the Texarkana (Texas) rolling mill. In the quarter ended December 31, 2021, Arconic completed its annual review of goodwill for impairment for each of its three reporting units: Rolled Products, Building and Construction Systems, and Extrusions. The results of this review indicated that the carrying value of the Extrusions reporting unit’s goodwill was fully impaired. Accordingly, in the quarter ended December 31, 2021, the Company recognized an impairment charge of $65. This impairment was primarily driven by a combination of market-based factors, including delays in aerospace market improvement and significant cost inflation, resulting in increasingly limited margin expansion. The Company had not previously identified any triggering events during 2021 prior to the annual review. Metal price lag represents the financial impact of the timing difference between when aluminum prices included in Sales are recognized and when aluminum purchase prices included in Cost of goods sold are realized. This adjustment aims to remove the effect of the volatility in metal prices and the calculation of this impact considers applicable metal hedging transactions. Other special items include the following: • for the quarter ended June 30, 2022, costs related to a new labor agreement with the United Steelworkers ($19), a charge for two environmental remediation matters ($9), costs related to several legal matters, including Grenfell Tower ($3) and other ($4), and other items ($4); • for the quarter ended March 31, 2022, costs related to several legal matters ($2), costs related to the packaging restart at the Tennessee rolling mill ($2), and other items ($1); • for the quarter ended December 31, 2021, costs related to several legal matters, including Grenfell Tower ($4) and other ($2), costs related to both an equipment fire and packaging restart at the Tennessee rolling mill ($5), and other items ($2); • for the quarter ended September 30, 2021, a partial reversal of a previously established reserve related to the Grasse River environmental remediation matter ($11), costs related to several legal matters ($7), and other items ($3); • for the quarter ended June 30, 2021, a write-down of inventory related to the idling of both the remaining operations at the Chandler (Arizona) extrusions facility and the casthouse operations at the Lafayette (Indiana) extrusions facility ($4) and costs related to several legal matters ($3); • for the quarter ended March 31, 2021, costs related to several legal matters, including Grenfell Tower ($4) and other ($1); • for the quarter ended December 31, 2020, costs related to several legal matters ($5) and other items ($3); • for the quarter ended September 30, 2020, costs related to several legal matters, including Grenfell Tower ($4) and other ($2), a write-down of inventory related to the idling of the casthouse operations at the Chandler (Arizona) extrusions facility ($5), and other items ($2); and • for the quarter ended June 30, 2020, costs related to several legal matters, including a customer settlement ($5), Grenfell Tower ($3), and other ($3). 16 Reconciliation of Total Company Adjusted EBITDA (cont’d)

17 Adjusted EBITDA to Free Cash Flow Bridge ($M) Quarter ended Quarter ended Quarter ended June 30, 2022 March 31, 2022 December 31, 2021 September 30, 2021 June 30, 2021 March 31, 2021 Adjusted EBITDA(1) $204 $205 $175 $171 $187 $179 Change in working capital(2) (49) (200) 11 (126) (51) (230) Cash payments for: Environmental remediation (2) (4) (40) (23) (4) (17) Pension contributions(3) (9) (4) (2) (3) (252) (201) Other postretirement benefits (8) (8) (10) (9) (10) (10) Restructuring actions (1) (2) (4) (2) (4) (5) Interest (23) (29) (22) (28) (22) (18) Income taxes (23) (4) (10) (4) (6) (6) Capital expenditures (33) (95) (61) (51) (44) (28) Other(4) 73 (57) (2) (18) (5) 14 Free Cash Flow(5) $129 $(198) $35 $(93) $(211) $(322) Adjusted EBITDA is a non-GAAP financial measure. See Reconciliation of Total Company Adjusted EBITDA presented elsewhere in this Appendix for (i) Arconic’s definition of Adjusted EBITDA, (ii) management’s rationale for the presentation of this non-GAAP measure, and (iii) a reconciliation of this non-GAAP measure to the most directly comparable GAAP measure. Arconic’s definition of working capital is Receivables plus Inventories less Accounts payable, trade. In January 2021, the Company contributed a total of $200 to its two funded U.S. defined benefit pension plans, comprised of the estimated minimum required funding for 2021 of $183 and an additional $17. In April 2021, the Company contributed a total of $250 to its two funded U.S. defined benefit pension plans to maintain the funding level of the remaining plan obligations not transferred under a group annuity contract. Other includes the impact of metal price lag as follows: 2Q 2022-$30; 1Q 2022-$(36); 4Q 2021-$11; 3Q 2021-$(21); and 2Q 2021-$(11). See footnote 4 in Reconciliation of Total Company Adjusted EBITDA presented elsewhere in this Appendix for additional information on metal price lag. Arconic’s definition of Free Cash Flow is Cash from operations less capital expenditures. Free Cash Flow is a non-GAAP financial measure. Management believes that this measure is meaningful to investors because management reviews cash flows generated from operations after taking into consideration capital expenditures, which are both necessary to maintain and expand the Company’s asset base and expected to generate future cash flows from operations. It is important to note that Free Cash Flow does not represent the residual cash flow available for discretionary expenditures since other non-discretionary expenditures, such as mandatory debt service requirements, are not deducted from the measure. 2Q 2022: Cash provided from operations of $162 less capital expenditures of $33 = free cash flow of $129 1Q 2022: Cash used for operations of $(103) less capital expenditures of $95 = free cash flow of $(198) 4Q 2021: Cash provided from operations of $96 less capital expenditures of $61 = free cash flow of $35 3Q 2021: Cash used for operations of $(42) less capital expenditures of $51 = free cash flow of $(93) 2Q 2021: Cash used for operations of $(167) less capital expenditures of $44 = free cash flow of $(211) 1Q 2021: Cash used for operations of $(294) less capital expenditures of $28 = free cash flow of $(322)

Reconciliation of Organic Revenue by End Market Organic revenue is a non-GAAP financial measure. Management believes this measure is meaningful to investors as it presents revenue on a comparable basis for all periods presented due to the impact of changes in aluminum prices and foreign currency fluctuations relative to the prior year period. ($M) Ground Building and Industrial and 2Q21 Transportation Construction Aerospace Packaging Other Total Revenue $634 $308 $151 $276 $432 $1,801 2Q22 Revenue $872 $423 $249 $518 $485 $2,547 Less: Aluminum price impact 180 39 22 113 102 456 Foreign currency impact (3) (12) 1 (1) - (15) Organic Revenue $695 $396 $226 $406 $383 $2,106 18

Reconciliation of Organic Revenue by Total Company and Segment Organic revenue is a non-GAAP financial measure. Management believes this measure is meaningful to investors as it presents revenue on a comparable basis for all periods presented due to the impact of changes in aluminum prices and foreign currency fluctuations relative to the prior year period. ($M) Quarter Ended June 30, 2021 2022 Arconic Corporation Revenue $1,801 $2,547 Less: Aluminum price impact n/a 456 Foreign currency impact n/a (15) Organic Revenue $1,801 $2,106 Rolled Products Revenue $1,474 $2,113 Less: Aluminum price impact n/a 434 Foreign currency impact n/a (2) Organic Revenue $1,474 $1,681 Building and Construction Systems Revenue $257 $329 Less: Aluminum price impact n/a 16 Foreign currency impact n/a (12) Organic Revenue $257 $325 Extrusions Revenue $70 $105 Less: Aluminum price impact n/a 6 Foreign currency impact n/a (1) Organic Revenue $70 $100 19

2022 Guidance: EBITDA to Free Cash Flow Walk ($M) 2022E Adjusted EBITDA $820-$870 Pension contributions and other postretirement benefits, net of service cost ~(45) Environmental remediation ~(15) Interest ~(105) Income taxes and other ~(85) Sustaining capital expenditures ~(160) Free cash flow before investment in growth ~$410-$460 Return-seeking capital expenditures ~(120) Working capital use ~(15) Free cash flow(1) ~$300 Assumes average LME aluminum price of $2,500/mt and Midwest Premium of $700/mt. 20

Gross Pension Liability to Decline Substantially as Interest Rates Rise 21 Estimated U.S. Pension Plan Funded Status at YE20221 Source: WTW & Mercer Investments, LLC. The FY2022 discount rate is based on the 12/31/2021 WTW 60th-90th RATELink yield curve resulting in a weighted average discount rate of 2.96%. The impact on the combined gross pension and OPEB liabilities of a change in the weighted average discount rate of 25 basis points would be approximately $100 million For the U.S. gross pension liability alone, a change in the weighted average discount rate of 100 basis points would change gross liability by approximately $250 million Annualized Asset Return Weighted Average Discount Rate 0% 2% 4% 2.96% (FY2022) ($605M) ($571M) ($537M) 4.0% ($350M) ($316M) ($282M) 5.0% ($148M) ($115M) ($81M)

Legacy Pension and OPEB Cash Obligations Down Substantially Annualized Asset Return 12/31/2022 12/31/2023 12/31/2024 0% ($605M) ($653M) ($701M) 2% ($571M) ($587M) ($605M) 4% ($537M) ($520M) ($504M) U.S. Qualified Pension Discretionary Contributions $22M $30M-$32M $21M-$31M Other Pension Contributions and Benefit Payments ~$10M ~$10M ~$10M OPEB Benefit Payments $29M $27M $27M Estimated U.S. Pension Plan Funded Status Source: WTW & Mercer Investments, LLC. Discount rate used to project the pension obligations as of 12/31/2022, 12/31/2023 and 12/31/2024 is based on the 12/31/2021 WTW 60th-90th RATELink yield curve resulting in a weighted average discount rate of 2.96% for the qualified pension plans combined. Assets for the U.S. qualified pension plans were projected assuming 0%, 2% or 4% annualized return reflecting the discretionary contributions shown above and expected benefit payments. No potential risk management activity, such as annuitizations, were reflected Expected Annual Cash Contributions and Benefit Payments 22