OSTI, Inc.'s EIN is 91-1834261.
Download the official 2025 Form 5500 (PDF) for OSTI, Inc. from the U.S. Department of Labor's EFAST2 system.
Download the official 2025 Form 5500 (PDF)OSTI, Inc.'s plan includes profit-sharing, a 401(k) feature, ERISA 404(c) participant direction.