Is OrangeX legal in the US?

Good day, I have a question regarding the legality of OrangeX in the United States. As someone who is interested in cryptocurrency and financial services, I am keen to understand whether OrangeX operates within the bounds of the law in the US. Are there any legal restrictions or regulatory hurdles that OrangeX faces in this market? Furthermore, are there any known issues or concerns that have been raised by regulatory bodies or other stakeholders in the US regarding OrangeX's operations? Your insights would be greatly appreciated.