Canntab Therapeutics Ltd (CTABF: OTCQB) | Halted Security Fri, Feb 28, 2020 12:00 - Canntab Therapeutics Ltd ( CTABF : OTCQB) - Halted Security - Effective Fri, Feb 28, 2020, CTABF is designated with the status Halted. You may find a complete list of revoked/suspended securities at otcmarkets.com .