Solstice Advanced Materials Inc.

DISCLOSURE CONTROLS AND PROCEDURES

Solstice’s management, with the participation of our Chief Executive Officer (“CEO”) and Chief Financial Officer (“CFO”), evaluated the effectiveness of our disclosure controls and procedures (as defined in Rules 13a-15(e) or 15d-15(e) promulgated under the Securities Exchange Act of 1934, as amended (the “Exchange Act”)) as of June 30, 2026. Based upon that evaluation, our CEO and CFO concluded that our disclosure controls and procedures were effective as of June 30, 2026 to ensure information required to be disclosed in reports filed under the Exchange Act is recorded, processed, summarized, and reported within the time periods specified in the SEC's rules and forms and that such information is accumulated and communicated to our management, including our CEO and CFO, as appropriate, to allow timely decisions regarding required disclosure.

CHANGES IN INTERNAL CONTROL OVER FINANCIAL REPORTING

During the quarter ended June 30, 2026, as part of the process of replacing certain services previously provided pursuant to the Transition Service Agreement with Honeywell, we completed the migration to a new instance of our enterprise resource planning (“ERP”) system on cloud based infrastructure, replacing the prior ERP system instance which was managed by Honeywell. In connection with this transition, we will continue to monitor the impact of the implementation on our processes, procedures, and internal control over financial reporting. There have been no other changes in the Company’s internal control over financial reporting (as defined in Rules 13a-15(f) or 15d-15(f) under the Exchange Act) during the quarter ended June 30, 2026 that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.

Part II. OTHER INFORMATION

We are subject to a number of lawsuits, investigations, disputes and claims (some of which involve substantial amounts) arising out of the conduct of our business, including matters relating to commercial transactions, intellectual property and environmental, health and safety matters. We recognize a liability for any contingency that is probable of occurrence and reasonably estimable. We continually assess the likelihood of adverse judgments or outcomes in these matters, as well as potential ranges of possible losses (taking into consideration any insurance recoveries), based on careful analysis of each matter with the assistance of outside legal counsel and, if applicable, other experts. See Note 14 – Commitments and Contingencies of the Notes to the Consolidated Financial Statements for a discussion of environmental and other litigation matters.