Not sure if there is really a leak.
There were some negative news about Chinese involvement in DRC cobalt mining in the last days.
https://www.reuters.com/article/china-metals-cobalt/chinas-huayou-pulls-out-of-congo-cobalt-mine-investment-after-price-slump-idUSL4N25C2C4
https://www.ft.com/content/f1e0b85a-c3f7-11e9-a8e9-296ca66511c9
I guess this newsflow worried some investors. It's obviously difficult to make a profit in current Co market.
Well, Chengtun decided to give Nzuri a loan middle of july when lme co-price was 26k US$/t. Price today is again above 30k US$/t. Cross the fingers that the deal will be completed...
P.S. Not a Chinese investment in Cobalt, but one in Lithium that recently got all necessary approvals despite the trade war issue
http://www.mondaq.com/canada/x/838720/Corporate+Commercial+Law/Chinas+Ganfeng+Lithium+Invests+US160+Million+In+Lithium+Brine+Joint+Venture+Project+In+Argentina
