Crypto exchange Poloniex has announced that it is delisting:
Clams (CLAM)
Pascal (PASC)
Steem (STEEM)
Navcoin (NAV)
GameCredits (GAME)
LBRY Credits (LBC)
The announcement is made in an email sent to users who hold them on the exchange.
Trading of the assets will be disabled on Oct. 15.
While LBC withdrawals will disable by Oct 28, the remaining currencies will be disabled by Nov. 15.