Business & farm

@Anonymous_ Hello, thanks for your explanations... it is usefull. I have another question:

So, let say the Cayman ltd wants to form an LLC in WY or NM state... and the Cyaman ltd will be singl-owner of US LLC.  An US LLC will sell the products online (Amazon, ebay) without office, payrol, warehouse and etc. 

What are the tax forms required to file in this case?

Thanks in advance and your time.