Why forked from BCH, can BTC holders get free CDY?
On August 1, 2017, Bitcoin community finally ended its years-long expansion war by splitting the original bitcoin into two chains, Bitcoin cash (BCH) and segwit Bitcoin (inheriting BTC ticker). We think BCH is more in line with Satoshi Nakamoto's vision of bitcoin "a peer-to-peer electronic cash system" and will have a brighter future.
Only who hold BCH at height 512666(about January 13 ) can get free CDY at the rate of 1BCH : 1000CDY.

How to claim my free CDY?
To get free CDY, you need to hold Bitcoin Cash before height 512666 (about January 13).
1.If your BCH is stored in a wallet where you can control private key yourself, you will definitely get free CDY. Just waiting for the wallet developer to provide feature to claim.