EVO Transportation & Energy Services, Inc. (EVOA: Pink Current) | Tier Change Sat, Aug 25, 2018 12:00 - EVO Transportation & Energy Services, Inc. ( EVOA : Pink Current) - Tier Change - The symbol, EVOA, no longer is classified as Pink Limited. As of Sat, Aug 25, 2018, EVOA resides in the Pink Current tier. You may find a complete list of tier changes at otcmarkets.com .