So, when will it start again for the sale of OPTHERIUM tokens?
Sai, what are the partners invited by OPTHERIUM to invite?
When is the plan for listing OPTHERIUM coins and where is the exchange?
Optherium token sale was posponed. The exact day of the token sale will be anounced later.
All information about partners are published in social links in oficial site of Optherium and here on Bitcointalk.
Optherium tokens will be on ecxhanges after the end of the main token sale. As I have said the date of the main token sale will be announced later.