Indeed, the vast, vast majority of polysilicon goes towards solar panels, and the vast, vast majority of that is made in China. What is striking, however, is that China has yet to master the manufacture of the pièce de résistance of the silicon world: semiconductor grade polysilicon. This can have as many as ten nines (99.99999999 per cent purity), where for every impure atom there are essentially 10 billion pure silicon atoms.
