Hello, we are well aware of the existence of the other security token standards, but we decided to have a different approach, as we wanted to have the possibility to process more complex compliance & eligibility checks onchain, that’s why we decided to go for another implementation, including the use of onchain identities and specific compliance contracts tailor-made for each token, but working through a standard interface, as described in ICompliance doc.
It is also important to note that T-REX tokens are used for about 3 years now in the industry and that >8,5 billion € of securities are already tokenized with this token standard, therefore it is not really a new implementation, what is new is the request that we made to add the standard in the EIPs library
cheers!