Per otcmarkets.com the Float size is far lower than the 4 billion outstanding, since Sikoroa has that 75% ownership as I understand it per the microcap article. Here is a paste from otcmarkets share structure of COBI:

COBI SECURITY DETAILS
Share Structure
Market Cap
1,598,731
11/23/2018

Authorized Shares
3,997,999,997
11/26/2018

Outstanding Shares
3,996,827,035
11/26/2018

Restricted
Not Available
Unrestricted
Not Available
Held at DTC
Not Available

Float
268,889,264
06/30/2016
Par Value
0.00