(up to August 2nd, 2017)
The August 1st Bitcoin fork has been completed. Margin trading and bitcoin deposits/withdrawals have resumed. Also, Bitcoin Cash (BCH) will be available from August 2nd, 2017, 3:00PM JST (6:00AM UTC) in the following spot trading products: BCHJPY, BCHUSD, and BCHSGD.
BCH deposits and withdrawals are not available yet.