President Xi and Chairman Kim have met to discuss relations between the China and North Korea ahead of the latter’s meeting with President Trump of the U.S. A normalization of relations between the DPRK and the U.S. are a necessary precursor to a reduction in UN trade restrictions. The process may have been complicated by President Trump’s reimposition of sanctions on Iran, rejecting a deal made by the prior administration. From an economic perspective the big prize for North Korea is re-establishing full trade links with China. While China’s exports rose 39% and imports by 31% in Mar...