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.