Premined coins are 1.5 mil, and total supply is 16 mil.
It means that the coin was premined at 9.375% of its max supply.
How about the plan of MIRAI team on main purposes of those 9.375% premined coins?
The premined coins were for the voluntary swap from xgox.
Because there was no way to know how many people would participate, a large amount was premined.
All xgox was sent to a burn address directly by the participants.
All left over MRI (1.2 million) was also sent to a burn address. A burn address is an address where no one could possibly hold the keys, so funds sent there can never be recovered and are effectively removed from circulation.
The burn address is here:
https://mirai.blockxplorer.info/address/MR1burnXXXXXXXXXXXXXXXXXXXXXUqRFJfSo there is no other purpose for the premine. It has been burnt/destroyed.