Collimator Vacuum Chambers for Particle Accelerator Research

SLAC National Accelerator Laboratory is operated by Stanford University for the Department of Energy. As a management and operating contractor, subcontracts awarded by the Laboratory are not Federal procurements, and are not directly subject to the Federal Acquisition Regulations in 48 CFR. Nonetheless, certain Federal laws, Executive Orders, and regulations may affect our DOE approved purchasing system, as required by statute, regulation, or contract terms and conditions. SLAC National Accelerator Laboratory invites interested vendors to submit a proposal in accordance with the attached RFP preparation

requirements for LCLS-II-HE Collimator Vacuum Chambers. Any clarification requests are due by Tuesday, March 170, 2026. Your full proposal must be received no later than Tuesday, March 24, 2026, 5pm PDT and be valid for 90 days after submission. SLAC has a requirement for the following: Attached RFP 363699(AG) documentation The award will be made based upon the attached Lowest Price Technically Acceptable method. NOTE: The following documents are attached in this solicitation. RFP_363699(AG)_CoverLtr.pdf RFP_363699(AG)_Package.pdf RFP_363699(AG)_Supporting_Documents.zip The purpose of this Amendment No. 01 is being issued to: Extend the RFP due date - From: March 24, 2026, 5:00 Pacific Daylight Time (PDT) To: April 01, 2026, 5:00 PM Pacific Daylight Time (PDT). All other terms and conditions of the solicitation remain unchanged. NOTE: The following document is attached to this solicitation: RFP_363699(AG)_Amendment_01 Please provide quoted price, delivery, technical compliance statement and certification to the attention of Angela Garcia. Angela Garcia Contracting (No Street Address

2) Menlo Park, CA 94025 USA to this opportunity. RFP_363699(AG)_Amendment_01.pdf RFP_363699(AG)_CoverLtr.pdf RFP_363699(AG)_Package.pdf