In December 1991, North Korea established a "zone of free economy and trade" to include the northeastern port cities of Unggi (Sŏnbong), Ch'ŏngjin, and Najin. The establishment of this zone also had ramifications on the questions of how far North Korea would go in opening its economy to the West and to South Korea, the future of the development scheme for the Tumen River area, and, more important, how much North Korea would reform its economic system.
In December 1991 North Korea established a "zone of free economy and trade" to include the northeastern port cities of Unggi (Sŏnbong), Ch'ŏngjin and Najin. The establishment of this zone also had ramifications on the questions of how far North Korea would go in opening its economy to the West and to South Korea, the future of the ,development scheme for the Tumen River area, and, more important, how much North Korea would reform its economic system.