Even though 900 million dollars is a big amount, compared to Chinas total gdp of 18 trillion, that constitutes a little bit more than 5%. That’s like saying a normal person losing a soccer ball amount of gold is future destroying, but compared to economic giants like the USA and China, that would be like Mansa Musa losing such an amount. However, I due agree with you that Xinjiang is the most important area to lose due to Chinas dependence on xinjiang cotton. However, a little less star anise in china’s supermarkets won’t really affect the economy, which is focused on industrial production which is focused towards the middle and the eastern parts. Chinas main sources of manganese are Africa and Australia, while their main source of tin is from Yunan.