There was already an answer from MinedBlock about exchanges (https://bitcointalksearch.org/topic/m.49738291) It seems like there are only a few security token exchanges yet (tZero and OpenFinance Network) but it appears like Binance is also working on an exchange for security tokens.
There are only a few exchanges for security tokens. Binance is making a huge move too. There’s a new exchange, LGO, an exchange mainly for institutions. They are all trying to make the right move with STO. It’s not just an ICO, there are rules involved, hope MBTX team talks about exchange listing soon.
is there any special terms for a STO project to get listed because i feel they will still operate based on the same listing principle from other exchanges
I guess most of us don't have any experience when it comes to STOs, so I am not sure about listing principles. I guess it will be similar to normal ICOs and all depends on the exchange where they wanna list.