CYN · Cyngn Inc.

On April 3, 2026, the Audit Committee and Board of Directors of Cyngn Inc. approved the dismissal of CBIZ CPAs P.C. and the appointment of Baker Tilly US, LLP as the Company's independent registered public accounting firm. The transition occurred without any disagreements between the Company and CBIZ regarding accounting principles, audit opinions, or financial reporting disclosures during the year ended December 31, 2025, and through the dismissal date. However, the filing discloses a reportable event identified in the 2025 Annual Report on Form 10-K related to ineffective oversight of third parties engaged for financial reporting and a lack of appropriate technical expertise regarding a complex accounting transaction. This reportable event was discussed between the Audit Committee and CBIZ. CBIZ has been authorized to respond fully to inquiries from Baker Tilly regarding this matter. The Company stated that it did not consult with Baker Tilly regarding any accounting or auditing issues prior to the engagement. CBIZ provided a letter, filed as Exhibit 16.1, agreeing with the statements made in the Form 8-K concerning the firm.