teagreentea@tg says to HK Blockchain & Cryptos 香港加密貨幣討論及交易/掘礦群組 telegram之後到 kakao搞blockchain野lol https://blockchain.news/Post?id=Kakao-to-Release-Klaytn-Mainnet-in-June-2019-14a71374-709a-4771-b5e2-824a5cfa9568&src=jc