Binance cryptocurrency exchange has delisted many cryptocurrency trading pairs from their portal. This includes Ncash, MFT and Key coins which have lost their main pair, BTC on Binance.
Binance will remove and cease trading on the following trading pairs at 2020/04/03 12:00 PM (UTC):
ADA / PAX, DREP / BNB, KEY / BTC, MFT / BTC, NCASH / BTC, POLY / BNB, TCT / BNB, TNB / ETH and VITE / BNB.
If you buy and sell orders in any of the aforementioned pairs, you should either cancel them or trade the coins / tokens with other pairs.
Loosing BTC pair means a lot for an altcoin on an exchange like Binance. We remember what happened to BTT token when it lost its BTC pairing on Binance. BTC pair has most volume since most like to trade with BTC.
You can still trade Ncash, MFT and Key with ETH pair but the volume is not as high as BTC pair. BNB pair is also available for most of the aforementioned coins / toknes. This excludes Poly, Vite, TCT and Drep which have lost their BNB pairing.
Binance often delists them due to low volume. Bear market is taking a toll on many of the projects and small cap projects often get delisted on top exchanges.