# Arms Sales Notification
**AGENCY:**
Defense Security Cooperation Agency, Department of Defense (DoD).
**ACTION:**
Arms sales notice.
**SUMMARY:**
The DoD is publishing the unclassified text of an arms sales notification.
**FOR FURTHER INFORMATION CONTACT:**
Urooj Zahra at (703) 695-6233, *[email protected],* or *[email protected]* .
**SUPPLEMENTARY INFORMATION:**
This 36(b) arms sales notification is published to fulfill the requirements of section 155 of Public Law 104-164 dated July 21, 1996. The following is a copy of a letter to the Speaker of the House of Representatives with attached Transmittal 25-0N.
Dated: January 21, 2026.
Stephanie J. Bost,
Alternate OSD Federal Register Liaison Officer, Department of Defense.
**Transmittal No. 25-0N**
**REPORT OF ENHANCEMENT OR UPGRADE OF SENSITIVITY OF TECHNOLOGY OR CAPABILITY (SEC. 36(B)(5)(C), AECA)**
(i) *Prospective Purchaser:* Republic of Korea
(ii) *Sec. 36(b)(1), AECA Transmittal No.:* 18-35
Date: September 13, 2018
Implementing Agency: Army
(iii) *Description:* On September 13, 2018, Congress was notified by congressional certification transmittal number 18-35 of the possible sale, under Section 36(b)(1) of the Arms Export Control Act, of sixty-four (64) Patriot Advanced Capability-3 (PAC-3) Missile Segment Enhancement (MSE) missiles. Also included were two (2) PAC-MSE test missiles, range and test programs, publications and technical documentations, training equipment, spare parts, personnel training, United States (U.S.) Government and contractor technical, engineering, and logistics support services, and other related elements of logistics and program support. The estimated total value was $501 million. Major Defense Equipment (MDE) constituted $365 million of this total.
On December 22, 2022, Congress was notified by congressional certification transmittal number 23-0C of the inclusion of the following additional MDE items: one-hundred sixteen (116) PAC-3 Missile Segment Enhancement (MSE) missiles; and two (2) PAC-3 MSE test missiles. Also included were spare parts; U.S. Government and contractor technical, engineering, and logistics support services; and other related elements of logistics and program support. The estimated total value of the additional items was $533 million. The estimated non-MDE value increased by $19 million to a revised $155 million. The revised estimated total case value was $1.034 billion. MDE constituted $879 million of this total.
This transmittal notifies the inclusion of the following additional MDE items: up to one hundred seven (107) PAC-3 MSE missiles; and up to five (5) PAC-3 MSE test missiles. The following non-MDE is also included: spare parts; U.S. Government and contractor technical, engineering, and logistics support services; and other related elements of logistics and program support. The estimated total value of the new items is $1.006 billion. The estimated non-MDE value will increase by $300 million to a revised $455 million. The revised estimated total case value will be $2.04 billion. MDE will constitute $1.585 billion of this total.
(iv) *Significance:* This notification is being provided as the MDE items were not enumerated in the original notification. The proposed sale will improve the Republic of Korea's air and missile defense capability and ensure greater interoperability with other PAC-3 MSE missile users in the region.
(v) *Justification:* This proposed sale will support the foreign policy goals and national security objectives of the U.S. by improving the security of a major non-NATO ally that is a force for political stability and economic progress in the Pacific region.
(vi) *Sensitivity of Technology:*
The Sensitivity of Technology statement contained in the original notification applies to items reported here.
The highest level of classification of defense articles, components, and services included in this potential sale is SECRET.
(vii) *Date Report Delivered to Congress:* May 15, 2025