I'm also really interested in the mining ICO, but it gets some red flags appearently..;
GW used BITMAIN's logo to show they are partners on their site and mentioned Jihan was part of the team. That was in January 2017. Jihan asked them to remove the logo and also he stated he has nothing to do with the team. They removed everything they were asked. Of course Bitmain doesn't want to have anything to do with a company that aims at decentralized mining, which is everything Jihan is fighting against as we see with his ASICboosts and UAHF Bitcoin plans.