[6] The production of the PKX-A(PKG) are being divided between Hanjin Heavy Industries and STX in lots of four.

The first vessel was launched in July 2016 and was commissioned in late 2017; all four ships in the first batch will be delivered by the end of 2019.

A contract was awarded to Hanjin Heavy Industries for ships 5 through 8 in June 2017, which are scheduled to be delivered after 2020.

[7] The PKX-B was specifically designed to counter North Korean fast swarming crafts.

Rockets have GPS/INS midcourse guidance with data uplink and terminal IIR homing, and three can be fired simultaneously.