Because Liu Qibin, a trader from the State Reserve Bureau, shorted 200,000 tons of copper on the London Metal Exchange in September last year due to expire in December, foreign funds knew that China is a copper importer and there is a domestic shortage. Copper, the State Reserve does not have that much copper. Therefore, we took advantage of our capital to hoard spot copper, driving up copper prices and forcing the State Reserve Bureau to hand over its positions. The State Reserve Bureau has rolled over its positions to 2006. Therefore, in this duel between the State Reserve Bureau and foreign funds, the price of copper has been continuously pushed up, and it has been separated from the supply and demand level.