Hi sorry to hear about your loss, probably they are at least "shady" as exchange and there are several unresolved scam accusations against them (2018/2019)
https://bitcointalk.org/index.php?topic=5067428.0https://bitcointalk.org/index.php?topic=5138612.0Plus, they are not active on twitter since July 8th 2019 (last tweet) and looking their twitter account, it's full of people complaining about their funds (can't withdraw)
https://twitter.com/KryptonoEx/status/1142987736007057408Dear Kryptono, I have been trying to withdraw my funds for two weeks and cannot, the transfer is not completed. I tried to contact you at support and was unsuccessful, as I do to withdraw my resources.