Giyani Completes the Solvent Extraction Phase of the Hydrometallurgical Testing Program of its K.Hill Manganese Material Not for distribution to U.S. newswire services or for dissemination in the United States OAKVILLE, Ontario, June 07, 2019 (GLOBE NEWSWIRE) -- Giyani Metals Corp. (TSXV:EMM) (FRANKFURT:KT9)...