Looks like pure scam to me, and there is no single information on their website...
Profile Link finexchange: https://bitcointalksearch.org/user/finexchange-2748024
Finexchange ANN topic: https://bitcointalk.org/index.php?action=profile;threads;u=2748024;sa=showPosts
Archived: https://archive.ph/m5491
Website: https://fin.cx/
Archived: https://archive.is/kzygE
Domain Name: fin.cx
Registry Domain ID: 1825090-CoCCA
Registry WHOIS Server:: whois.coccaregistry.org
Updated Date: 2020-01-06T11:44:06.886Z
Creation Date: 2020-01-06T11:44:01.889Z
Registry Expiry Date: 2021-01-06T11:44:01.938Z