Washington, Dec. 6 -- The U.S. State Department has approved the potential sale of more than 600 GBU-39/B Small Diameter Bombs-Increment I (SDB-I) to South Korea for an estimated $112 million, the Defense Security Cooperation Agency (DSCA) announced on Saturday.

The State Department has made a determination approving a possible Foreign Military Sale to the Republic of Korea of GBU-39/B Small Diameter Bombs-Increment I (SDB-I) and related equipment for an estimated cost of $111.8 million. The Defense Security Cooperation Agency delivered the required certification notifying Congress.

This purchase would add to a previous contract under which Seoul acquired 387 SDB-Is and related equipment.

The Republic of Korea has requested to buy an add...