Afghanistan needs to develop its economy as the USA cuts foreign aid. Its in Afghanistan's economic interests to work with a Sino-Pak bloc going forward. The USA-Indo-Iranian nexus that Kabul has been championing hasn't yielded much economic development in the past 10 years. Afghanistan will have to develop its mining and mineral sector (possible worth trillions)....the largest importer of minerals globally is China. Afghanistan already has rail links to Pakistan to ship this to China via CPEC. Air corridors wont work for shipping ore.