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Lots of exchanges have been applied for but you have to bear in mind not all deal with cryptonight currencies.
Got it, fella! Thank you so much. That means we have to do both tasks simultaneously. Finding free or low listing fees; and those exchanges are ready to list Cryptonight-algorithm cryptocurrencies. It is also obviously that exchanges which accept to list Cryptonight-algorithmed coins are very limited.
Consequently, it seems that we have to wait official news from Bitsum project.