Creating accounts on Huobi is relatively simple. The link to create an account is in the top right corner of the homepage. The first registration screen asks you to select your country of origin, with the warning that it can not be changed when entered. Huobi is proud to be active in more than 130 countries. However, exactly, the United States is not given as a possible citizenship option. The countries most frequently selected since May 2018 are China, Hong Kong, Taiwan, Japan, Korea, Germany, United Kingdom, and Canada.
The username you choose may be a phone number or email address. Huobi warns that verifying email addresses may be mistakenly flagged as spam, so it's important to check your spam folder for verification emails when you create your account.
Once you've created your account, verify your email and then log in for the first time you are shown a welcome screen offering you the option to purchase an electronic currency amount with CNY, US Dollars (USD) and Singapore Dollars (SGD) use their OTC services or transfer some of the services that you already own to the trading platform.