If an RRI maintains multiple futures/options trading accounts for the same client, it can opt to assign the same BCAN or different BCANs to the different accounts of this client.
However, a joint futures/options trading account (e.g. jointly held by Mr. and Mrs. Chan) is not of the same client as a futures/options trading account held by Mr. Chan himself. Hence a separate BCAN should be assigned to that joint account for identification. In the case of a joint account, an RRI is required to assign a BCAN to the account and not to the account holders. The BCAN of a joint account should be distinct from any BCAN assigned to any joint account holder who holds a futures/options trading account with the RRI in his sole name. The BCAN-CID Mapping File containing the CID of all holders of that joint account should be submitted by the RRI to HKFE or SEHK, as the case may be, under the BCAN assigned to the joint futures/options trading account.