Period   Date   Bonus Rate   Electroneum Issued
1st 7 days   14 - 20 September 2017   50%   150 coins per USD $1
2nd 7 days   21 - 27 September 2017   40%   140 coins per USD $1
3rd 7 days   28 September - 4 October 2017   30%   130 coins per USD $1
4th 7 days   5 - 11 October 2017   20%   120 coins per USD $1
5th 7 days   12 - 18 october 2017   10%   110 coins per USD $1
Last   19 - 31 October 2017   0%   100 coins per USD $1