Thought so.
Still the question remains, why?
It would help to know if this is a government stockpile or a private hoard.
The way I read the artical,I thought the alluminum was the property of the Chinese Government.But then everything is,No matter what people want you to think.China is still a Communist country,although they wear a capitalist mask.
Base metals are getting ready to crash in price.
The giant warehouses of the London Metals Exchange around the world are full to the brim.
China knows it and is selling some of their stock at a high price and will buy it back later at half for what they sold it for.