Financiers based in Singapore are suing the United Kingdom for shutting down a coal mine. They are demanding financial compensation.

I don't care who they think they are or where they're from, best of luck with your bold efforts to sue the United Kingdom, you're going to need it and more. /s

Many of the more recent trade proposals include various forms of such arbitration tribunals, which are appointed via shady legislation, not public and unchallengeable. Dangerous stuff!