Myanmar's Jade Curse 緬甸寶石 豐富的礦產資源與掠奪

Most of Myanmar's raw jade enters a murky black market. Its official revenue from jade exports over from 2011 to 2014 was $1.3bn. But Harvard University's Ash Center estimates total jade sales - including through unofficial channels - were $8bn in 2011 alone, suggesting most of the revenue does not go into government coffers.

The Myanmar government will not speak to us on camera. But our investigations reveal a corrupt senior government official who works with businessmen in the illegal trade of raw jade, including helping to falsify tax documents.

In northern Kachin state, we follow jade smugglers to the remote Hpakant mining town, the source of the world's best jade. The men are part of the government's border guard force. The officer in charge tells us how he pays off army and police commanders along the smuggling trail to China.