Huobi.pro announced they will be listing IOTA on May 3rd 2018 (GMT+8)!
Deposits will start at 16:00 (GMT+8) on May 3rd and IOTA/BTC, IOTA/ETH and IOTA/USDT traiding pairs will be available on May 4th 16:00 (GMT+8).
Withdrawals will be activated on May 6th 16:00 (GMT+8).
This is great news since Huobi.pro is an exchange with a pretty big tradingvolume.
You can check the announcement here: huobi.pro IOTA announcement
UPDATE 04.05.18: HUOBI said they postpone the listing. Reasons were not communicated. Looks like we just have to wait for further informations.