I am trying to wrap my head around the concept you described:

- 'GOLD' is a digital asset emitted by GoldMint’s custom-built blockchain platform.
- 'MNT' Token is what participants of this ICO is purchasing.

1) What is the relationship between 'Gold' and MNT Tokens?

2) How does holders of MNT Tokens in an exchange (eg, Hitbtc) collect the 75% of commissions from GoldMint Blockchain you mentioned?

The project does sounds like a keeper, hope it is a success!