Form: SD

Specialized disclosure report

May 1, 2026

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

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FORM SD

Specialized Disclosure Report

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BALL CORPORATION

(Exact name of registrant as specified in charter)

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Indiana

001-07349

35-0160610

(State or other jurisdiction

(Commission

(IRS Employer

of incorporation)

File No.)

Identification No.)

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9200 W. 108th Circle,

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P.O. Box 5000, Westminster, CO

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80021-2510

(Address of principal executive offices)

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(ZIP Code)

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Derek Redmond

303-460-2004

(Name and telephone number, including area code, of the
person to contact in connection with this report.)

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Check the appropriate box to indicate the rule pursuant to which this form is being filed, and provide the period to which the information in this form applies:

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Rule 13p-1 under the Securities Exchange Act (17 CFR 240.13p-1) for the reporting period from January 1 to December 31, 2025.

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Section 1–Conflict Minerals Disclosure

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A copy of the Conflict Minerals Report of Ball Corporation, which includes a description of our due diligence, is provided as Exhibit 1.01 hereto and is publicly available at https://www.ball.com/sustainability/sustainability-reporting/downloads

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Section 2 –Exhibits

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Exhibit 1.01–Conflict Minerals Report.

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SIGNATURES

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Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the duly authorized undersigned.

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BALL CORPORATION

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(Registrant)

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/s/ Hannah Lim-Johnson

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May 1, 2026

Hannah Lim-Johnson

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(Date)

Senior Vice President, Chief Legal Officer and Corporate Secretary

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