Is OKX legal in the UK?

Could you please clarify for me, is OKX considered a legal entity in the United Kingdom? Given the complexities surrounding cryptocurrency regulations, I'm seeking a definitive answer. As a financial expert, I'm aware of the varying degrees of legality depending on the jurisdiction, and I'm keen to understand the specific status of OKX in the UK. Is it fully compliant with local laws and regulations, or are there any grey areas that investors should be aware of? Thank you for your assistance in clarifying this matter.