NNXPF - Mason Graphite sells Nanoxplore shares for $28.2M September, 10 2019 10:41 AM NanoXplore Mason Graphite (OTCQX:MGPHF -7.5%) announces the sale of its investment in NanoXplore Inc. (OTCQX:NNXPF) for total net consideration of $28.2M.More news on: Mason Graphite Inc., NanoXplore, Inc., Martinrea International Inc., Read more ...