Are you mean this project?
tronemerald.com
Domain name: tronemerald.com
Registry Domain ID: 2441363254_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.namecheap.com
Registrar URL: http://www.namecheap.com
Updated Date: 0001-01-01T00:00:00.00Z
Creation Date: 2019-10-08T12:59:25.00Z
Registrar Registration Expiration Date: 2020-10-08T12:59:25.00Z
Registrar: NAMECHEAP INC
Registrar IANA ID: 1068
I think they are very strange, their white paper just contain 3 pages. Be careful if you want to deposit on this service. You can join airdrop, as far as they are not asking KYC. But, don't share your private data, such as Private key, passphrase or anything. Before you do anything, continue your research about this website.