Exhibit 99.1 OPTICAL CABLE CORPORATION 5290 Concourse Drive Roanoke, VA 24019 (Nasdaq GM: OCC) www.occfiber.com AT THE COMPANY: (212) 355-4449 ext. 8603 (212) 355-4449 ext. 8689 occ-jfwbk@joelefrank.com occ-jfwbk@joelefrank.com FOR IMMEDIATE RELEASE OPTICAL CABLE CORPORATION REPORTS THIRD QUARTER OF FISCAL YEAR 2025 FINANCIAL RESULTS Net Sales Increased 22.8% and Gross Profit Increased 61.2% in Third Quarter of Fiscal 2025 Compared to Prior Year Roanoke, Va., September 11, 2025 — Optical Cable Corporation ( ...