BEL FUSE INC /NJ (BELFA): auditor change — Bel Fuse dismisses Grant Thornton as auditor; appoints Deloitte for FY 2026

(a) Dismissal of Independent Registered Public Accounting Firm . On December 4, 2025, the Audit Committee (the "Audit Committee") of Bel Fuse Inc.'s (“Bel”) Board of Directors (the “Board”), dismissed Grant Thornton LLP (“Grant Thornton”), which is currently serving as Bel’s independent registered public accounting firm and notified Grant Thornton on December 5, 2025.

Grant Thornton was previously engaged to audit the Company’s consolidated financial statements for the year ending December 31, 2025. The appointment of Deloitte & Touche LLP does not affect Grant Thornton’s engagement for the year ended December 31, 2025. The decision to change independent registered public accounting firms was recommended by the Audit Committee and approved by the Board on December 4, 2025. During Bel’s two most recent fiscal years ended December 31, 2023 and 2024, and the subsequent interim period through December 4, 2025, (i) Bel has not had any disagreements with Grant Thornton on any matter of accounting principles or practices, financial statement disclosure or auditing scope or procedure, which, if not resolved to Grant Thornton’s satisfaction, would have caused Grant Thornton to make reference to the subject matter thereof in connection with its reports on Bel’s