China signed on in March to U.N. sanctions that limit trade with the North and has tightened controls on cross-border flows of goods. Security Council resolutions prohibit nuclear weapons development by the North and all ballistic missile activity. Advertisement Continue reading the main storyThe government of North Korean leader Kim Jong Un conducted its fifth nuclear test on Sept. 9. Ma founded Hongxiang in 2000 and the company has expanded into trade, hotels and tourism. In April, China banned imports of North Korean coal and iron ore, an important revenue source for the impoverished country.

Source: New York Times September 21, 2016 07:33 UTC