Bloomberg @business
China's troubled Xinjiang region produces nearly half the world's polysilicon, a key ingredient in solar panels. The problem is, no one really knows what goes on inside their factories. Bloomberg's @Colum_M and @JDMayger traveled to Xinjiang to find out: https://t.co/Abo0AlmPCi https://t.co/UTaTylnRAS — PolitiTweet.org