Kaes ng is a city in North Hwanghae Province, southern North Korea (DPRK), a former Directly Governed City, and the capital of Korea during the Koryo Dynasty. The city is near Kaes ng Industrial Region and it contains the remains of the Manwoldae palace. It was formally named Songdo while it was the ancient capital of Koryo. It prospered as a trade center that produced Korean ginseng, which is famous internationally. It is now the DPRK's light industry centre.