RFI 00585-CAB Addendum No. 1.zip

This document is an Request for Information (RFI) Addendum No. 1 for Electron and Hadron Endcap Structures for the ePIC Detector, issued by Brookhaven Science Associates (BSA) at Brookhaven National Laboratory. The RFI seeks expressions of interest from firms to develop two endcap structures for the Electron-Proton/Ion Collider (ePIC) detector, with the response deadline extended from October 17, 2025 to November 14, 2025 at 5:00 P.M. EST.

The addendum includes clarification responses to five vendor questions covering technical specifications, including material requirements (1020 steel specifically), paint/coating details, model availability, and budgetary pricing expectations. Interested firms are requested to provide electronic submissions describing their capabilities for delivering the endcap structures, with a preference for email submissions. The project is sponsored by the Department of Energy Office of Basic Energy Sciences, and potential vendors are encouraged to review the attached technical specifications, drawings, and bill of materials (BOM) spreadsheets when preparing their responses.