The Department of Energy, through Brookhaven National Laboratory (BNL), is seeking qualified vendors for the fabrication of silicon substrates as outlined in a pre-solicitation notice. The procurement aims to fulfill BNL's requirements for six silicon substrates, with potential future needs for 18 flat mirrors and 18 spherical mirrors over the next three years, all to be manufactured to specific BNL specifications. These substrates and mirrors are critical for various research applications at the multidisciplinary facility located in Upton, New York. Interested parties must be registered under NAICS code 327211 and are encouraged to review the attached draft Statement of Work for detailed specifications, with the anticipated contract award date around November 15, 2024. For inquiries, vendors can contact Ben Furlow at bfurlow@bnl.gov or by phone at 631-344-4070.