The volume of Catex.io is real, is this exchange based in China giving you a voucher? The exchange was born only a year ago, they have a CATT token (2 billion) which currently costs very little $ 0.000482 ..... could it be an interesting investment?
I would not risk and take part in another exchange growth. Right now it is getting extremely hard to become a Binance competitor because even such giants as Huobi or Kucoin are stucked and it is harder and harder to move further.