Since the closure of btc38.com, Tagcoin lost it's main trading exchange. However AEX.com is the new exchange set up by the owners of btc38..based out of UK and Hong Kong I think, and it is now being traded again..
I'm not familiar with btc38.com or aex.com. It is save to trade there? Is there a reason why there is a big price differents between aex and yobit for tagcoins?