Q/C Technologies, Inc.: auditor change, Stephano Slack LLC to Grassi & Co., CPAs, P.C.

On March 9, 2026, the Audit Committee of the Board of Directors (the “Committee”) of Q/C Technologies, Inc. (the “Company”) approved the dismissal of Stephano Slack LLC (“Stephano Slack”) as the Company’s independent registered public accounting firm, effective as of the same date.

From October 3, 2023, through March 9, 2026, the date of Stephano Slack’s dismissal, there were (a) no disagreements (as defined in Item 304(a)(1)(iv) of Regulation S-K and the related instructions) between the Company and Stephano Slack on any matter of accounting principles or practices, financial statement disclosure, or auditing scope or procedures

On March 9, 2026, the Committee engaged Grassi & Co., CPAs, P.C. (“Grassi”) as the Company’s independent registered public accounting firm to audit the Company’s financial statements for the year ended December 31, 2025, effective immediately.