From the same article:
> Telegram Messenger LLP was established in February 2014 by two companies – Dogged Labs Ltd. (British Virgin Islands) and Telegraph Inc. (Belize). In May 2018, however, Dogged Labs was substituted for Telegram Messenger Inc., which is also registered in the British Virgin Islands.
How the SEC (or the US in general) intends to undertake effective enforcement action against a cryptocurrency provider operating out of either of those jurisdictions is beyond me. They don't exactly have a physical product whose import you can ban...
[1] https://news.bitcoin.com/pavel-durov-closes-uk-based-company...