What countries are restricted by Phemex?

Could you elaborate on the countries that are currently restricted from accessing Phemex's services? Are there any specific regions or territories that have been blacklisted due to regulatory concerns, legal restrictions, or other factors? It would be informative to know the criteria used by Phemex to determine which nations are not eligible for their platform, and if there are any plans to expand access in the future. Understanding these limitations is crucial for potential users who may be residing in restricted areas.