Tiantian Kullander News: Cofounder of digital-asset trading platform Amber Group, Tiantian Kullander, passed away on November 23, the company said. The 30 year old unexpectedly in his sleep, it added in a statement on Friday. According to a company statement, Kullander passed away unexpectedly while in his sleep. He cofounded the company in 2017. The The post Breaking: Amber Group Cofounder Tiantian Kullander Passes Away appeared first on CoinGape .