Not sure if many people are aware, but you can get an additional 5% tokens through this:

An additional bonus thats a really good deal didnt realize that if I buy some more willl have to see if I can get them through coss next time to take advantage of it I definitly wont pass up more bang for my buck hehe
Maybe an missing something but it ask appears like the project is actively trying to promote the said exchange. It's there any form of partnership between them??
they are quite connected to each other:
Cristian Hagmann, General manager & Co-founder of Bittwatt was an advisor of Cooss.io during their ICO and now Andrei Popescu, Co-Founder of COSS.IO is advisor of Bittwatt