The US State Department has approved a possible foreign military sale of Harpoon Coastal Defense Systems (HCDS) to Taipei Economic and Cultural Representative Office in the United States (TECRO).

The sale also includes associated equipment and has a total estimated value of $2.37bn.

The US Defense Security Cooperation Agency has notified Congress about the sale.

Under the deal, TERCO requested the sale of 100 HCDS that consist of 400 RGM-84L-4 Harpoon Block II surface-launched missiles and four RTM-84L-4 Harpoon Block II exercise missiles.

The proposed package also includes 411 containers, 100 HCDS Launcher Transporter Units, 25 radar trucks, spare and repair parts, support and test equipment, and other related support.

The DSCA said in a statement: “This proposed sale serves US national, economic, and security interests by supporting the recipient’s continuing efforts to modernise its armed forces and to maintain a credible defensive capability.

“The proposed sale will help improve the security of the recipient and assist in maintaining political stability, military balance, economic and progress in the region.”

Boeing will act as the principal contractor for the sale.

For the sale implementation, two US contractor representatives will be assigned to TERCO to provide technical reviews, support, and oversight for eight years.

Last week, the department approved a possible foreign military sale of AGM-84H standoff land attack missile expanded response (SLAM-ER) Missiles to TECRO.

The department also approved a sale of 11 high mobility artillery rocket systems (HIMARS) M142 launchers for $436.1m and six MS-110 Recce Pods for $367.2m to TERCO.