Multiple MATOC Construction Projects at Osan AB, RoK

This amendment is to revise the SOW for the project W90VN6-26-R-A016, SMYU 26-1039, REPLACE AHU and CHILLER SYSTEM FOR WING HQ, B1097.Closing date extended to 22 May 2026 12:00.This amendment is to announce the site orientation for the project W90VN6-26-R-A016, SMYU 26-1039, REPLACE AHU and CHILLER SYSTEM FOR WING HQ, B1097 on the following date and time.Date:

22 April 2026 (Wednesday)Time: 1300 hrsIn front of B1097Please review the following important points:1. To ensure a smooth process, please limit attendance to one representative per company (offeror).2. For pre-screening and access coordination, a copy of the attendee ID (????? ?? ?????) must be submitted. Please send them to me via email no later than 21 April 2026.3. Parking in the immediate vicinity of the building is extremely limited.

Need to arrange for parking in advance and proceed to the meeting point on foot.MATOC Work Plan RFP: Multiple Construction Projects at Osan Air Base (SMYU 15-1069, 15-1070, 25-1017, 26-1025, 26-1039, 27-1015) This is a Request for Proposal (RFP) for a MATOC Work Plan.

The solicitation is strictly limited to the following eligible con?tractors under MATOC numbers: W91QVN-24-D-0023, -0024, -0025, -0026, -0028, -0030, -0031, -0033, -0035, -0036, -0038, -0080, -0083, and -0109.Project Requirements: The Government intends to award task orders for six (6) distinct projects - CLIN 0001: SMYU 15-1069 REPAIR FIRE PROTECTION SYSTEM IN WAREHOUSE, B2462;

CLIN 0002: SMYU 15-1070 REPAIR FIRE PROTECTION SYSTEM IN WAREHOUSE, B2464;

CLIN 0003: SMYU 25-1017, DEMO ABANDONED BUILDING B1464;

CLIN 0004: SMYU 26-1025, DEMO ABANDONED BUILDING B1704;

CLIN 0005: SMYU 26-1039 REPLACE AHU and CHILLER SYSTEM FOR WING HQ, B1097;

CLIN 0006: SMYU 27-1015, REPAIR HAS FLOORS and REPAINT FOR F-16 B1753-64 and B1778-87, Osan AB.

Submission and Evaluation Strategy Fair Opportunity: This requirement is issued pursuant to FAR Subpart 16.505.

Flexible Participation: Contractors may submit pro?posals for one, or up to all six projects.

Individual Proposal Requirements: A sepa?rate and complete proposal package must be submitted for each specific project.

Independent Evaluation: Each proposal will be evaluated independently. Contractors are eligible to be awarded multiple projects.

Initial Proposals: The Government anticipates making awards based on initial proposals without conducting exchanges. Offerors are encouraged to submit their best terms immediately. The Government reserves the right to conduct exchanges if deemed necessary. Attached Documentation Please refer to the attach?ments for each specific project: 1. Solicitation 2. Statement of Work (SOW) 3. Drawings 4. Submittal Register 5. Contractor Tax Exemption Declaration ** Site Visit: The offeror is strongly encour?aged. Per FAR 52.236-2 (Differing Site Conditions) and 52.236-3 (Site Investigations and Conditions Affecting the Work), offerors are urged to inspect the sites where work will be performed.

Date and Time: Tuesday, 7 April 2026, at 0900 Hrs.

Meeting Location: In front of Bldg. #600, Osan Air Base.

RFI Deadline: All Requests for Information (RFls) regarding the site visit must be submitted by COB on 13 April 2026.

Please see all attached documents for each specific project