From the whitepaper Page 26 - 10.2 ICO Tokens distribution
In addition to the amount of the A2A tokens exchanged during the ICO process
for the different cryptocurrencies and tokens, 10% of such exchanged amount of
A2A tokens will be issued and distributed between STeX project owners.
On top of the described amount, 10% of the amount of the A2A tokens exchanged
during the ICO process are issued for bounty, airdrops, advisors and strategic
partners of the STeX project.
The minimum amount of 200,000,000 A2A tokens must be exchanged during the
ICO. If the desired amount will not be reached during the ICO, the liquidity pool
will be topped up with all additionally issued A2A tokens remained to reach this
200,000,000 limit and will be reserved in the liquidity pool for the future
distributions in response to the future userbase growth.
5% of the total final supply will be issued to the liquidity pool on STeX Exchange
and other exchanges to provide sufficient liquidity for A2A tokens on the market.
Considering all the above, the total number of the A2A tokens available for
exchange during the ICO is 500,000,000. The maximum total supply in case the
ICO will be hard-capped is 600,000,000 A2A tokens.
to add to that; their assumption is that at least 30,000 ETH will be collected during the ICO.