China Stockpiling Silver

It is not a coincidence that the COMEX registered silver stock went down since 2015 (-1250 metric tonnes), while the Shanghai silver stocks are going up at the same time since 2015 (+1500 metric tonnes). And this stockpiling really accelerated in 2016 when the silver price started to take off. So basically China is buying up the COMEX physical stock. I wonder how long this will continue. The answer, not long: maximum 6 months. Then the silver price will blow up higher, because there is no way China will be selling that silver.