Yes,
FCB - First Crypto Bank
Tradable pairs
MNG/BTC https://fcbaccount.com/fcb/exchange/MNG/BTC
MNG/LTC https://fcbaccount.com/fcb/exchange/MNG/LTC
MNG/DOGE https://fcbaccount.com/fcb/exchange/MNG/DOGE
Cratex.io
Tradable pairs
https://cratex.io/index.php?pair=MNG/BTC
https://cratex.io/index.php?pair=MNG/LTC
https://cratex.io/index.php?pair=MNG/BTCZ
New exchanges will follow..
Is your coin already traded on the exchange? What is the daily trading volume?
Does your Mangocoin blockchain have a smart contract feature?
Are these two exchanges centralized?
What is the real daily trading volume at the moment?