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 March 31, 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, which remain present as of the Evaluation Date, related to the impact of headcount reductions and turnover in certain senior and control-related roles during 2025, including during the quarter ended September 30, 2025. These changes affected various individuals responsible for financial reporting and internal control execution and created certain resource constraints within the finance and control functions, which in turn affected the consistency and timeliness of performing certain control activities. These resource constraints limited the execution of certain review and monitoring procedures at the level required for effective internal control over financial reporting. Management continues to view these deficiencies in the aggregate as constituting a material weakness in our internal control over financial reporting, primarily stemming from short-term capacity limitations rather than systemic control framework issues, and has implemented supplemental reviews and reallocated responsibilities to support control performance while remediation efforts continue.

The implementation of our remediation measures will require validation and testing of the design and operating effectiveness of internal controls over a sustained period. We will not consider the material weaknesses remediated until our enhanced controls are operational for a sufficient period of time and tested, enabling management to conclude that the enhanced controls are operating effectively. In addition, we cannot ensure that the measures taken by us to date, and actions that we may take in the future, will be sufficient to remediate these deficiencies in a timely manner or at all or that they will prevent or avoid potential future deficiencies.

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 otherwise described herein, there were no changes in our internal control over financial reporting during the quarter ended March 31, 2026, that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

PART II—OTHER INFORMATION

The Company is, and may from time to time be, involved in legal proceedings and exposed to potential claims in the normal course of business. Although we cannot predict the ultimate outcome of any legal matter with certainty, we currently do not believe the outcome of any of our pending legal proceedings will have a material adverse impact on our consolidated financial position, results of operations or cash flows.