At the genesis block, there is 1.36 billion HNS with an additional 680 million available to be mined, for a fully diluted supply of 2.04 billion. The first halving of the mining reward will occur after 3.25 years — after 5 years about 430k (60%) of the mineable coins will have been mined, and after around 100 years, the very last mineable HNS coin will be mined.