As you have been told a million times, it doesnt matter where the company issuing the stock is incorporated (afaik labcoin isnt even incorporated). You have to follow US law when soliciting funds for unregistered securities from (unsophisticated) US citizens in the US. Even less doubt if the promoter/agent is a US citizen living in the US.

What the securities are about is of no importance, you cant promote and sell unregistered Nigerian stocks in the US, just because Nigerian law would allow it.

There is a reason Burnside at some point planned to deny access to his exchange for US citizens,  but you seem to daft to grasp why.