A snapshot of the ETH network will be take on May 16, 2019, and 16:00 GMT. All ETH holders will be entitled to free ETBC coins at a 1:1 ratio. Please note that only personal blockchain wallets can participate in the distribution of ETBC.
I got the impression that this project is similar to Ethereum Vision, because of which many users of cryptocurrency lost their funds, which were located on erc20 wallets.