 TSX: GPR NYSE American: GPL A dditional pushback required at UCS; mine plan being revised to accelerate production from other areas including underground mine development This news release constitutes a designated news release for the purposes of the Companys prospectus supplement dated October 15, 2021, to its short form base shelf prospectus dated September 10, 2021. VANCOUVER, BC, Oct. 18, 2021 PRNewswire - Great Panther Mining Limited TSX: GPR NYSE-A: GPL Great Panther or the Company, a growing gold and silver producer focused on the Americas, reports that Tucanos geotechnical committee has advised the Company that additional remediation work is required on the Urucum Central South UCS open pit to improve safety factors. 