This, the 6th International Symposium on Process Mineralogy (Process Mineralogy -20), is organised by MEI in consultation with Dr Megan Becker and is sponsored by ZEISS & FLSmidth. Media sponsors are International Mining. Developing from MEI’s previous conferences, Process Mineralogy -20 will deal with the following topics: Quantitative mineralogy, including both X-ray and Electron Beam Techniques; Geometallurgy; Ore characterisation; Mineral Liberation and Textural Analysis; Application of process mineralogy on site; Sampling and Statistics; Advanced Process Control.