Alcoa Corp — Share Issue/Capital Change 2025

Aug 6, 2025

Appendix 4A - Statement of CDIs on issue

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Part 1 - Entity and announcement details

1.1 Name of +Entity

ALCOA CORPORATION

1.2 Registered Number Type

ARBN

Registration Number 677586935

1.3 ASX issuer code

AAI

1.4 The announcement is

New announcement 1.5 Date of this announcement

6/8/2025

Appendix 4A - Statement of CDIs on issue

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Appendix 4A - Statement of CDIs on issue

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Part 2 - Details of +CDIs and other +securities on issue

2.1 Statement for month and year

July-2025

2.2a Number and class of all +CDIs issued over quoted +securities

ASX Security Code and Description +CDI Ratio AAI : CDI 1:1 FOREIGN EXEMPT NYSE 1:1 Total number of +CDIs issued over Total number of +CDIs issued over Net Difference (A-B) quoted +securities at end of quoted +securities at end of previous 670,679 statement month (A): month (B): 62,270,980 61,600,301

Reason for change:

Common stock

Net transfers of securities between CDIs and

as quoted / held on

New York Stock Exchange

If the total number of +CDIs issued over quoted +securities at the end of the statement month, is greater than the total number of +CDIs issued over quoted +securities for which the entity has previously paid an initial listing fee or an additional listing fee under Table 1A and 1C of Guidance Note 15A, the entity hereby applies for +quotation of the relevant securities and agrees to the matters set out in Appendix 2A of the ASX Listing Rules.

2.2b Number and class of all +securities on issue over which +CDIs have not been issued

ASX Security Code and Description

AAIAA : COMMON STOCK

Total number of +securities at end of Total number of +securities at end of Net Difference (A-B) statement month (A) previous month (B) -657,479 196,645,243 197,302,722

Reason for change:

Transfer of Common Stock to CDIs and issuance of shares pursuant to equity compensation plan.

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