Is Phemex allowed in the USA?

Good day, I'm curious about the legal status of Phemex in the United States. Could you please clarify whether or not it is allowed for individuals residing in the USA to use Phemex for their cryptocurrency trading activities? I'm interested in understanding the regulations and compliance measures that Phemex has in place to ensure that they are operating legally in this jurisdiction. Additionally, are there any restrictions or limitations that US-based users should be aware of when utilizing Phemex? Thank you for your time and attention to this matter.