Can US citizens use OKX?

Could you please elaborate on the matter of whether US citizens are permitted to utilize the OKX platform? I'm curious to understand the specific regulations or policies that govern this aspect. Does OKX have any restrictions or limitations in place for American users? If so, what are they, and how do they impact the ability of US citizens to trade or engage with cryptocurrencies on the platform? Additionally, are there any alternative options or workarounds available for US citizens who wish to access similar services? Thank you for your assistance in clarifying this matter.