 THE COLONY, Texas, June 28, 2021 GLOBE NEWSWIRE -- Quest Resource Holding Corporation Nasdaq: QRHC Quest, a national leader in environmental waste and recycling services, announced today that it was selected to join the Russell Microcap Index effective after the U.S. market opens today, June 28, 2021, when Russell Investments reconstitutes its comprehensive set of U.S. and global equity indexes. Russell indexes are part of FTSE Russell, a leading global index provider. 