Gasfrac Energy Services, Inc. (GSFVF: OTC Link) | Deleted Symbol Fri, Aug 07, 2020 12:00 - Gasfrac Energy Services, Inc. (GSFVF: OTC Link) - Deleted Symbol - As of Fri, Aug 07, 2020, GSFVF is no longer a valid symbol. You may find a complete list of deleted symbols at
otcmarkets.com .