Clean Air Metals Inc. (CLRMF: OTCQB) | Piggyback Qualified Fri, Aug 07, 2020 12:00 - Clean Air Metals Inc. ( CLRMF : OTCQB) - Piggyback Qualified - Effective Fri, Aug 07, 2020, CLRMF is designated with the status of piggyback qualified. Piggyback qualification allows market participants, in addition to the original 211 form filer, to quote the respective security. You may find a complete list of piggyback qualifications at otcmarkets.com .