Thank you all for your advice, for NWC I saw an announcement and I read it, it looked interesting that is why i asked what are you thoughts. Same for SGC.
I guess the consensus is that they are not good coins to invest with specially if the people behind those projects wanted to list it on a shitty exchange. Indication that they might not be serious about listing them on top exchanges or at least a mid tier exchanges.
So just be careful though, you might swim on a water that you can't get out. So stay away and DYOR on our coins that has potential, best of luck in your decision.