evidence: Hyesan. The capital of the Ryanggang Province. Material was taken in a gorge, about 1000 m a.s.l., by the River Tuman-gang (China boundary) north-east of Hyesan (1 June). [...] In February 2005, Jilin Province’s Changbai County collaborated with Shandong’s Zhaojin Group to invest RMB 200 million in mining equipment in the Hyesan Youth Copper Mine in Ryanggang. The Hyesan Youth Copper Mine is one of the largest copper mines in Asia and its copper grade is 16 percent, double that of Northeast China. [...] Darlene Tymo, the WFP’s country director in North Korea, said that although official statistics from the North Korean government are not out yet, the main harvest of the year is believed to have been worse than last year and that could mean especially remote and impoverished areas — particularly the mountainous provinces of Chagang and Ryanggang along the border with China — could be looking at a harsher than usual winter ahead.