How do you accept payments and how do you pay back to customers? I haven't found a "create account" link on the site... What is electricity cost at your facility? What mining pool are you using?
Payment can be sent either using bank wire or btc but the later of the two is much preferred.
Creating account is not needed. You can check the miners via your pool account.
Electricity including maintenance cost is RMB 0.3 or USD 0.045 per kWh.
You pick the pool(s).
Eric, are Ant S9 miners still available? I'm interested in buying and hosting one and pay in BTC. I've sent a PM to you.