Global Critical Minerals Definitional Mission

NOTICE: THE PURPOSE OF THIS AMENDMENT 0004 (A0004) - QUESTIONS RECEIVED PRIOR TO 1:00 p.m. EST CUTOFF ON AUGUST 6, 2025. ALL ELSE REMAIN UNCHANGED. 1) SEE ATTACHMENT AMENDMENT 0004 IN RESPONSE TO ADDITIONAL QUESTIONS RECEIVED. ALL ELSE REMAIN UNCHANGED. THE PURPOSE OF THIS AMENDMENT 0003 (A0003) - PROVIDE A REVISED PERFORMANCE WORK STATEMENT (PWS) - ALSO, QUESTIONS AND RESPONSES TO SOLICITATION NUMBER: 1131PL25RDM11136 AMENDMENT 00003 - REVISED PWS - RESPONDING TO QUESTION RECEIVED (Q&A) - PLEASE SEE ATTACHMENT A0003 ALL ELSE REMAIN UNCHANGED.

SOLICITATION NUMBER: 1131PL25RDM11136 - AMENDMENT 00002 (A00002) - SEE ATTACHMENT THE PURPOSE OF THIS AMENDMENT 00002 IS TO:

1) EXTEND THE SOLICITATION SUBMISSION OF PROPOSAL CLOSING DATE TO:

MONDAY, 25TH AUGUST 2025 AT 1:00 PM ARLINGTON, VA TIME ALL ELSE REMAIN UNCHANGED.

SOLICITATION NUMBER: 1131PL25RDM11136 - AMENDMENT 00001 THE PURPOSE OF THIS AMENDMENT, A00001 IS TO:

1) Extend the Closing date for Questions to Wednesday, August 6, 2025, at 1:00 pm Eastern Standard Time (EST). ALL ELSE REMAIN UNCHANGED. This Request for Proposal was prepared in accordance with the format in Federal Acquisition Regulation (FAR) Subpart 12.6 and procedures in Subpart 15.3 as supplemented with additional information included in this notice. This announcement constitutes the only RFP; offers are being requested and a written solicitation will not be issued.

This solicitation is being issued IAW FAR Part 15. The Government will offer one award resulting from this solicitation to the offeror who is deemed responsible and is determined, based on the evaluation factors and sub factors, to represent the best value to the Government. This procurement is UNRESTRICTED under NAICS Code 541690, Other Scientific and Technical Consulting Services. Award is limited to U.S. Firms or U.S. individuals.

Contractor and U.S. subcontractor employees used shall be either U.S. citizens or non-U.S. citizens lawfully admitted for permanent residence in the United States. Questions are due Tuesday, August 6, 2025 Extended: Solicitation Closes Monday, August 25, 2025 at 1pm Arlington, VA Time.