Dasa Harbor is a shipping port on the south-west coast of Oji Island. It functions as Oji's primary import/export hub.
Trade flow
Imports: containers, coal, iron ore.
Exports: raw logs from Migeum, and steel beams produced at Ara's steel mill.
Ring road
The 0.7.x patches opened the road from Dasa north-west to Dongsan, completing the ring road around Oji.