Long ago, I bought Polymath off of KuCoin exchange, but since they delisted it I moved it to HitBTC. Polymath had been delisted from KuCoin for some time, even passed the deadline if I recall correctly. I guess support felt bad and gave me my coins anyway so I have a soft spot in my heart for KuCoin. I also know that KuCoin is located in Hong Kong and not a mystery place.