Max Supply how many ? is anybody know ? can tell me please.i search and didnt found
There is no traditional max supply. Block reward slowly tapers off over many years (Reward is 300,000 - block height). You can see emission stats:
Maybe the max is 50 billion. Maybe Sia is burning supply now (don't think so) or maybe will in the future (it is on the road map iirc).
Google more. The answer is out there it is just not simple like every other crypto.