Amrize Ltd

Evaluation of Disclosure Controls and Procedures

Disclosure controls and procedures (as such term is defined in Rules 13a-15(e) and 15d-15(e) under the

Exchange Act) are designed to ensure that information required to be disclosed by the Company in reports

that it files or submits under the Exchange Act is (i) recorded, processed, summarized and reported within the

time periods specified in SEC rules and forms and (ii) accumulated and communicated to the Company’s

management, including its principal executive officer and principal financial officer, as appropriate to allow

timely decisions regarding required disclosure.

In connection with the preparation of this Quarterly Report, an evaluation of the effectiveness of the design

and operation of our disclosure controls and procedures as of June 30, 2026 was carried out under the

supervision and with the participation of the Company’s management, including the Chief Executive Officer

and Chief Financial Officer (“the Certifying Officers”). Based on this evaluation, the Certifying Officers

concluded that the Company’s disclosure controls and procedures were not effective as of June 30, 2026

because of our previously reported material weakness in our internal control over financial reporting, as

described in the Risk Factors section of the Company’s Annual Report on Form 10-K for the year ended

December 31, 2025.

Notwithstanding the identified material weakness, management has concluded that the condensed

consolidated financial statements included in this Quarterly Report on Form 10-Q present fairly, in all material

respects, our financial position, results of operations and cash flows for the periods disclosed in conformity

Material Weakness

A material weakness is a deficiency, or a combination of deficiencies, in internal control over financial

reporting, such that there is a reasonable possibility that a material misstatement of our annual or interim

financial statements will not be prevented or detected on a timely basis.

As previously disclosed, management identified a material weakness in the design and operation of our

internal control over financial reporting related to insufficient accounting and supervisory personnel who have

the appropriate level of U.S. GAAP technical accounting experience and training.

Ongoing Remediation Efforts to Address the Previously Identified Material Weakness

Management, under the oversight of the Audit Committee, is in the process of implementing measures

designed to remediate the factors contributing to the material weakness, including:

•Continuing to recruit, onboard and train qualified personnel with U.S. GAAP and SEC experience to

support enhanced control ownership and timely, consistent execution of internal control over

financial reporting;

•Establishing and advancing Finance Policy and Disclosure Committees comprised of appropriately

qualified personnel;

•Utilizing outside resources with specialized accounting expertise to supplement internal resources as

needed.

While we have taken steps to implement our remediation plan, the material weakness will not be considered

remediated until the enhanced controls operate for a sufficient period of time and management has

concluded, through testing, that the related controls are effective. We will continue to monitor the

effectiveness of our remediation plan and refine the plan as appropriate.

Changes in Internal Controls over Financial Reporting

Other than with respect to the continued remediation efforts in connection with the material weakness

described above, there wereno changes in our internal control over financial reporting during thesix months

ended June 30, 2026 that have materially affected, or are reasonably likely to materially affect, our internal

control over financial reporting.

PART II - OTHER INFORMATION