Which countries support OKX exchange?

I'm curious to know which countries currently support the OKX exchange platform for cryptocurrency trading. As the market for digital assets continues to expand globally, it's essential for traders to understand the regulatory landscape and which jurisdictions allow access to specific exchanges. Could you provide an overview of the countries that officially endorse or allow the use of OKX for buying, selling, and trading various cryptocurrencies? Additionally, are there any notable restrictions or limitations that traders should be aware of when using OKX in certain regions?