The total available supply of OKB is 1 billion. Every Friday, 50% of the service fees collected by OKEx during the week will be shared with our OKB holders as a special bonus, of which the amount is based on the percentage of OKB the user holds. Currently, 70% of OKB is locked up. The program starts on Apr 20, 2018 and lasts for 2 years. Adjustments will be made according to circumstances until then.