LanzaTech Global, Inc.

Evaluation of Disclosure Controls and Procedures

Our 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) and 15d-15(e) under the Exchange Act, as of June 30, 2026 (the “Evaluation Date”).

Based on that evaluation, the CEO and CFO concluded that the material weaknesses in our internal control over financial reporting related to: (i) the accounting for complex transactions and estimates requiring significant judgment and (ii) revenue recognition, which were previously identified in Item 9A. “Controls and Procedures” of our Annual Report on Form 10-K for the year ended December 31, 2023, were still present as of Evaluation Date.

The Company also previously identified control deficiencies related to the impact of headcount reductions and turnover in certain senior and control-related roles during 2025, which contributed to resource constraints within the finance and accounting function and adversely affected the timely execution of certain internal control activities. During 2026, management has made meaningful progress in strengthening the Company’s internal control over financial reporting through enhancements to the Company’s accounting organization and key financial reporting controls. Management has also commenced testing of enhanced controls as part of the remediation efforts.

Management will continue to evaluate the design and operating effectiveness of the enhanced controls over a sustained period. The Company will not consider the material weaknesses remediated until the enhanced controls have operated effectively for a sufficient period of time and management has concluded, based on testing, that the controls are operating effectively. Accordingly, there can be no assurance that these remediation efforts will be completed successfully or on a timely basis.

Based on the material weaknesses, and the evaluation of our disclosure controls and procedures, our CEO and CFO concluded that our disclosure controls and procedures were not effective as of the Evaluation Date.

Notwithstanding the identified material weaknesses, our CEO and CFO have concluded that our unaudited consolidated financial statements included in this Quarterly Report on Form 10-Q fairly present, in all material respects, our financial position, results of operations and cash flows for the periods presented in conformity with GAAP.

Changes in Internal Control Over Financial Reporting

Except as described above with respect to the Company’s remediation activities, there were no other changes in our internal control over financial reporting during the quarter 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

There are no material legal proceedings to which the Company is currently a party.